BASIS_OF_DESIGN.pdf

Addition/Renovation of 301ST Maintenance (MXS) Building 1656 Project DDPM 130004

Naval Air Station, Fort Worth Joint Reserve Base, TX Contract Number: FA6643-10-D-0002

Task Order: 5D16

P 843 875 3637 F 843 875 4509 www.cemsengineering.com PO Box 1680 1 3509 Iron Horse Drive Ladson, SC 29456

Basis of Design (BoD)

Civil Design Narrative

The renovation/addition to building 1656 Fuels Maintenance Dock located off of Lyons Drive at the Carswell Air Reservation Station (CARS) will require minor site demolition and/or relocation of various site features. The existing retention pond will be demolished, backfilled with select fill and graded to ensure positive drainage. The existing oil/water separator pipe will be cleared of concrete and the pipe to the retention pond will be sealed. In addition the removal of a fuel tank located southwest of building 1656 will be required.

Proposed improvements to the site include the following:

• Building addition

• Remove and replace existing concrete side walk & concrete pavement

• A parking area will be constructed in the location of the existing retention pond.

The parking area will be porous concrete pavement designed to meet a minimum loading of 10,000 lbs

• New parking area will not be striped

• Bollards shall be used as protection for above ground structures located adjacent to traffic patterns

• Concrete pads for mechanical & electrical equipment

• Electrical line/equipment demolition and installation (see Electrical)

The total project area consists of approximately 0.70 acres, of which, 0.23 acres will be disturbed. The total land disturbance is less than 1 acre; therefore, this project will not require a Stormwater Permit or a Sediment & Erosion Control Permit from the City of Fort Worth. The project does exceed 5,000 SF of land disturbance and requires the project to comply with the requirements of Section 438 of the Energy Independence and Security Act (2007). Porous Concrete pavement will be installed to capture & treat stormwater runoff. Drainage design will be completed in accordance with EPA/NPDES requirements and will comply with the requirements of Section 438 of the Energy Independence and Security Act (2007).

Best management practices will be used for Erosion and Sediment Control and will include the installation of sediment fencing, temporary swales, and organic filter tubes.

The project construction sequence will begin with the installation of all sediment trapping devices before proceeding with site demolition and construction. Once construction has been completed, all disturbed areas shall be permanently seeded with grass after all work is complete.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 2 3509 Iron Horse Drive Ladson, SC 29456

Site References

UFC 3-210-01A Area Planning, Site Planning, and Design UFC 3-210-02 POV Site Circulation and Parking UFC 3-210-06A Site Planning and Design UFC3-230-17FA Drainage in Areas Other Than Airfields UFC 3-250-18 General Provisions: Geometric Design for Roads, Streets, Walks, and Open Storage Areas.

UFC 4-010-01 DoD Minimum Antiterrorism For Buildings

Manual on Uniform Traffic Control Devices (MUTCD)

Environmental Protection Agency (EPA): National Pollutant Discharge Elimination

System (NPDES)

Section 438 of the Energy Independence and Security Act of 2007 (EISA)

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 3 3509 Iron Horse Drive Ladson, SC 29456

Architectural Design Narrative

General For additional information not shown, refer to the Meeting Minutes and Investigatory Field Report sections of the 10% submittal.

The project consists of three main portions; a 1,554 sf addition to the existing Building 1656, a major renovation of the existing office/restrooms and minor renovations to the rest of the interior of the facility.

Building 1656 was constructed in 1989 and has not undergone any major renovations.

The site investigation found little variance from the original as-built construction documents.

New Addition The new addition will support additional office space, a small break area with sink and a conference room. Part of the addition will also extend the locker room area. The design team will utilize similar materials to provide a seamless transition between the new and existing facility.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 4 3509 Iron Horse Drive Ladson, SC 29456

Renovation of Existing Offices and Restrooms The renovation of the existing office space includes the repair/replacement of all flooring, cabinetry, interior doors, and wall finishes, as well as reconfiguration of the rooms to accommodate the proposed areas. The restrooms will be reconfigured to include enlarged locker rooms as well as provide access from both the work area and the “clean” area of the building. The renovated restrooms will include new interior finishes, fixtures, accessories, and partitions. The relocation of the rooms will be coordinated with the end user and validated by the engineering department.

Renovation of Interiors The remainder of the facility including work spaces, storage and the main hangar will receive new flooring finish, ceiling finish and wall finishes.

Construction Timeline This facility needs to stay operational during construction and any down time will need to be limited to 1 day or work performed over a weekend to minimize impact.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 5 3509 Iron Horse Drive Ladson, SC 29456

Programming

The addition was programmed to accommodate six cubicles work stations and a conference room. The existing women’s restroom will become a single, enclosed, office.

Construction Systems The following construction systems will be modified or used for the new addition and/ or the existing remodel.

Roofing System The addition roofing will match the existing standing seam metal roofing on rigid insulation, metal deck and bar joist. The roof slope, gutter and soffit will be designed to match the existing. (See Figure below)

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 6 3509 Iron Horse Drive Ladson, SC 29456

Exterior Wall The exterior of the existing building is constructed of masonry with pre-finished insulated metal panels. (See Photo below)

Photo 1: Exterior of building.

The new exterior walls will be constructed of 8” CMU with a pre-finished insulated metal panel to match the existing building. R value of this wall shall be studied and determined based on compliance with the Energy Usage Criteria for Facilities in the Military Construction Program.

Interior Wall System The interior walls for the new addition and renovation will be metal stud framing with gypsum board layer. The studs on a typical wall will be 3 5/8” wide.

Openings The exterior doors for the addition will be hollow metal doors and steel frames. Doors will be thermally insulated and maximum duty. Exterior doors shall have dead bolt panic hardware with nonferrous thresholds. All interior doors replaced or added during the renovation will be hollow metal doors. The existing roll-up door at the rear of the hangar will be replaced with a motorized roll-up door.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 7 3509 Iron Horse Drive Ladson, SC 29456

Interior Finishes All materials and finishes proposed will be selected keeping in mind durability and ease of maintenance. The selection will be done on commercially standard materials. The walls for the interior will be textured and painted in a color that matches the interior. A rubber cove base will be used throughout the facility. The floor for the facility will be polished concrete and tile depending on the room (see below).

ROOM NAME FLOOR CEILING

HANGAR POLISHED CONC EXPOSED PAINTED

OPEN OFFICES TILE ACOUSTICAL TILE

OFFICE TILE ACOUSTICAL TILE

CONFERENCE TILE ACOUSTICAL TILE

RESTROOMS TILE GYPSUM BD

LOCKER ROOMS TILE GYPSUM BD

WORK ROOMS POLISHED CONC GYPSUM BD

STORAGE POLISHED CONC GYPSUM BD

MECHANICAL

ROOM CONC

EXPOSED

CIRCULATION TILE ACOUSTICAL TILE

Furniture, Fixtures, and Equipment An FFE package has been developed and coordinated with the interior design package.

The existing furniture and appliances will not be reused in this facility.

The FFE has been submitted separately to include comments received from the 65% design submittal.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 8 3509 Iron Horse Drive Ladson, SC 29456

Structural Design Narrative

Design Parameters per IBC 2012, ASCE 07-10, UFC 3-301-01, UFC 4-010-01

Roof Live Load: 20 PSF Ground Snow Load: 5 PSF Minimum Roof Snow Load: 5 PSF (ASCE 7-10, Sect. 7.3.4) Soil Bearing Pressure: 2,500 PSF (Per Geotechnical Report)

Wind:

Occupancy Category – II 115 MPH (3 sec. Gust) Exposure C

Seismic:

Importance Factor, Ie = 1.00 Risk Category – II Site Class: C SDS = 0.072g SD1 = 0.057g Seismic Design Category: A

Project Overview and Design

Existing Building

The below descriptions of the existing building were gathered through review of the as-built drawings and through non-destructive site investigations.

The existing 301st Maintenance Squadron (MXS) Building 1656 was originally designed and constructed in 1989 and has not undergone any major renovations. The building contains three sections that include a center high roof hangar with a low roof portion on each side of the hangar.

The original facility was approximately 11,300 sf with the hangar superstructure built of W12 steel columns supporting steel joist girders and steel bar joists. The low roof portions are constructed with 8” reinforced CMU load bearing walls supporting steel bar joists (office, maintenance, and storage areas). Within the hangar, there are two 10’x15’ mezzanine platforms with non-slip grating and live load capacity of 60 psf (per the as-built drawings). The mezzanine platform was constructed of TS10x1-1/2x3/16 beams and TS4x2x1/4 joists at 3’-0” on center supporting bar grating. The elevated platform is supported with one 3” dia. steel pipe column at one corner and 8” reinforced CMU load bearing walls (joists and beams extend into the CMU). The exterior walls of

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 9 3509 Iron Horse Drive Ladson, SC 29456 the entire facility are constructed with 8” reinforced CMU with pre-finished insulated metal panels. All the steel columns and CMU walls are supported by 12”x30” concrete grade beams and drilled concrete piers.

New Work

The new 8’ x 26’ area to accommodate a portion of the men’s locker room will be referred to as the “expansion”, the interior work within the existing spaces will be referred to as the “renovation”, and the new 22’x59’ office/conference area will be referred to as the “addition”.

Expansion

For the new men’s locker room expansion, a 12’+/- opening along with a 40” opening will be cut into the existing exterior load bearing wall. A new 8” reinforced CMU wall on strip footings will be constructed approximately 8’ offset of the existing wall and new 8K1 bar joists will span from the new wall to the existing. To support the existing roof and remaining wall above the new opening, new steel beam members will be bolted to the existing bond beam which contains the existing joist bearing plates for the existing joists. These members will span the openings and be supported by a new steel bracket bolted to the existing wall on one end and existing CMU on the other. To ensure proper load transfer support, the existing walls in selected locations will be grouted and reinforced (see plans for installation details).

Renovation

The renovation will require modifications to some existing 8” CMU walls within the existing office areas to support the new layout. Portions of the existing floor slab will also need to be cut and selectively demolished for installation of new plumbing lines.

The existing mezzanines in the hangar area have been analyzed to establish the load capacity of the steel which will be coordinated with the new mechanical equipment weights. The existing steel framing can support more than double the existing load of the new mechanical unit and live load from maintenance personnel and tools. The anticipated loading is a 50 psf live load from personnel/tools and a 1,200 pound mechanical unit. The mezzanine was then analyzed using a 125 psf working load throughout the platform area, and all steel members were sufficient.

However, although the steel members are sufficient to carry the 125 psf loading, the steel column’s 18” diameter pier must not exceed a 100 psf safe working load. With a 2,500 psf soil bearing capacity per the geotechnical report, the existing 18” diameter concrete pier supporting the pipe column would have a capacity of approximately 4,400 pounds. Therefore, our mechanical design will utilize a unit such that this load is not exceeded.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 10 3509 Iron Horse Drive

Addition

Although the new and existing structures are to appear to be integral, the approximate 1,550 sf addition will be treated as a separate and independent structure which will have vertical and lateral supporting elements. The roof of the addition will be constructed of new light gauge steel trusses (pitch and extents to match the existing roof) spaced at approximately 4’-0” on center with a galvanized 1.5B22 steel deck diaphragm and topped with the new metal roofing system to match the existing.

New exterior walls of 8” CMU with both vertical and horizontal reinforcement shall be provided to resist out of plane wind and seismic loads. These walls shall be anchored to the foundation with vertical reinforcement. These walls will also be provided with steel bearing plates cast into horizontal bond beams so that the new steel trusses can be sufficiently fastened to the plates to resist all applied loading.

At the interface between the new addition and the existing building, an expansion joint will be provided at the slabs, walls, and roof. The existing foundation of the facility consists of drilled reinforced concrete piers supporting existing reinforced concrete grade beams. Mimicking this foundation will be an expensive route. The new walls will be constructed of less costly shallow strip footings. With the new foundation design differing from the existing foundation design, an expansion joint at the new/existing interface will allow for differential movement.

As a new wall is not being provided directly adjacent to the existing, the truss/roof system of the addition will be provided with an approximate 1” gap. A new continuous steel angle with vertically long–slotted holes will be bolted into the existing grouted cells of the existing CMU wall and fastened to the new truss. This will allow vertical deflection, out-of-plan expansion, but will engage the new angle and fastening for in-plane load transfer to the existing reinforced 8” CMU wall.

All concrete will be normal weight with a 3,000 psi compressive strength. The floor will be a 5” thick concrete slab on grade reinforced with 6x6-W2.0xW2.0 welded wire fabric over a 4” uniformly graded coarse gravel fill. A 10 mil polyethylene vapor retarder will be placed under the slab on grade and over the subgrade. The concrete slab on grade shall have sawed control joints at approximately 10’-0” to 15’-0” on center each way.

The slab will be poured up to the CMU wall with a ½” expansion joint filled with expansion material to allow for differential movement.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 11

The net allowable soil bearing capacity is 2,500 psf and the wall will be supported on a continuous 28” wide by 12” thick reinforced concrete footing approximately 24” below grade. The 8” reinforced CMU wall will have all cells below grade filled with grout.

Antiterrorism/Force Protection (AT/FP)

It has been determined throughout design that upon completion of the renovation and new addition, the building will be routinely occupied by 8 DoD personnel (the same number as in the existing facility). The new design will not change the occupancy of the facility (will remain low occupancy), nor will the renovation and addition trigger compliance with UFC 4-010-01 in reference to cost because the project costs will not reach 50% replacement value.

Some new glazing may be installed for daylighting but the glazing and supporting structural elements requirements of UFC 4-010-01 will not be triggered due to the occupancy of the building and replacement costs..

References

IBC 2012 International Building Code, 2012 UFC 3-301-01 Structural Engineering UFC 4-010-01 DoD Minimum Antiterrorism Standards for Buildings ASCE 7-10 Minimum Design Loads for Buildings and Other Structures

See construction documents for additional references.

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Electrical Design Narrative

Building 1656 has an existing underground electrical service. The existing pad mounted service transformer is rated 500KVA, 12.47KV:277/480V, three phase, four wire. This transformer feeds a 600 amp, 277/480 volt main panel ‘MDP’ which is located in the mechanical/electrical room. Panel ‘MDP’ feeds three 277/480 volt and two 120/208 volt branch circuit panelboards which are also located in the mechanical/electrical room.

The building does not have a backup emergency generator.

The existing electrical service and branch circuit panelboards are sufficient to provide required power for the renovation and addition. However, the service transformer is in the footprint of the proposed addition. A new 500KVA service transformer and underground electrical service will be installed outside of the addition footprint prior to demolition of the existing service transformer and underground service. This will minimize the power outage required for the electrical service changeover. The electrical service outage and changeover will be scheduled for a weekend to minimize disruption of user activities. The demolished service transformer will be returned to the government. The existing electric meter will be removed from the demolished transformer and reinstalled on the new service transformer.

Existing lighting in the ‘clean’ area of the renovation consists of recessed 34 watt fluorescent fixtures installed during the original construction. All light fixtures in the clean area renovation will be replaced with LED type 2’x4’ recessed fixtures. Original high bay, metal halide light fixtures in the hangar area have recently been replaced with high bay 2’x4’ fluorescent fixtures. These fixtures in the hangar area will not be replaced during this project. Existing explosion proof light fixtures in shop areas will not be replaced during this project. LED type 2’x4’ fixtures and LED exit signs will be installed in the new addition. Emergency lighting will be provided by integral battery ballasts installed in the new fixtures.

Communication cabling in the renovated areas will be removed and replaced with CAT6 cables. New cabling in the addition will be CAT6 cables. Each communications faceplate will have two data outlets and two voice outlets. Voice outlets will be wired back to the existing telephone backboard and data outlets will be wired back to the existing wall mounted network switch. The existing underground fiber optic and copper outside plant cables are in the footprint of the new addition and will be relocated.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 13 3509 Iron Horse Drive Ladson, SC 29456

The existing lightning protection system (LPS) will be repaired and extended to the new addition. The LPS will consist of air terminals, down conductors and extension of existing counterpoise system.

The existing grounding system in the hangar and shop areas will be repaired as needed to provide required resistance levels.

References

ANSI C2 National Electrical Safety Code ETL 02-12 Communications and Information System Criteria for

Air Force Facilities UFC 1-200-01 General Building Requirements UFC 3-520-01 Interior Electrical Systems UFC 3-530-01 Interior and Exterior Lighting and Controls UFC 3-550-01 Power Distribution Systems NFPA 70 Nation Electrical Code NFPA 101 Life Safety Code NFPA 780 Installation of Lightning Protection Systems

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Mechanical Design Narrative

The Scope of Work requires minimum envelope U-values for the new addition in accordance with ASHRAE 90.1 2010 as follows:

Wall U-value: 0.084; eq. R-value: 13 + 3.8 continuous insulation Roof U-value: 0.048; eq. R-value: 20.0 continuous insulation Door U-value: 0.7 Window U-value: 0.65

The existing building HVAC systems will be removed and demolished. These systems include the McQuay 20-Ton air-cooled chiller, Bryan 1,440-MBH boiler, Trane air handling units, ¾ HP and 5 HP chilled and hot water pumps, rooftop exhaust fans, and all HVAC controls. Piping and ductwork shall remain existing where possible to prevent extensive finishing work to reduce overall project cost. Existing hot water heating & ventilating units and hot water unit heaters within the hangar and miscellaneous spaces shall be replaced with similar hot water equipment, but selected for use with condensing boiler water temperatures. The existing units that are explosion proof shall be replaced with like explosion proof specifications.

New HVAC systems shall be provided and installed to serve the entire renovated facility including the new addition. The new system types were determined per UFC 3-410-01 and 1-200-02. The ASHRAE 90.1-2010 baseline system for the new addition is packaged rooftop air conditioning, constant volume, and direct expansion with natural gas furnace.

The new HVAC system for the addition and renovated spaces shall consist of two (2) split system heat pumps. RM108 shall be conditioned using a packaged direct expansion unit and a split system heat pump. The remainder of the hanger will be heated using similar hot water heating units, condensing natural gas boiler, and new heating hot water system except for distribution piping that will be flushed and reused throughout the hangar facility. Variable flow redundant lead/lag heating hot water pumps shall be provided to meet UFC requirements. All existing exhaust fans shall be replaced with same new units.

The new HVAC control system shall be a BACnet DDC system which will be capable of connection to a future base wide utility controls monitoring system.

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 15 3509 Iron Horse Drive Ladson, SC 29456

Exhaust fans EF-7 and EF-8 and hose reels associated with the fume exhaust systems in rooms 113 and 108 shall be removed and existing roof penetrations capped or patched to match existing.

Per RFI NO. 03, exhaust and ventilation requirements for this facility have not changed.

Therefore, the current design direction is to replace exhaust fans and ventilation equipment with similar capacities.

Energy Analysis Carrier HAP software was utilized to simulate the energy usage for this Facility and determine the comparison between the ASHRAE baseline building and proposed building design. The energy savings goal for this project will be to achieve 30% energy savings over the ASHRAE baseline. Per UFC 1-200-02 the required energy savings are 20% over ASHRAE baseline. See UFC 1-200-02 Energy Savings calculation.

References

ASHRAE 62.1-2010 Ventilation for Acceptable Indoor Air Quality ASHRAE 90.1-2010 Energy Standards for Buildings Except Low-Rise Residential IMC 2012 International Mechanical Code IFGC 2012 International Fuel Gas Code NFPA 54 National Fuel Gas Code UFC 1-200-01 General Building Requirements UFC 1-200-02 High Performance and Sustainable Building UFC 3-410-01 Heating, Ventilating, and Air Conditioning Systems

Plumbing Design Narrative

All facility plumbing modifications associated with the addition and renovation (e.g., the restrooms modification) shall be coordinated. Removed fixtures supply and DWV piping will be capped and new fixtures will be provided with new piping as required for the renovation and new fixture locations.

The existing 50 gallon, 40 MBH gas domestic water heater and recirculation system shall be removed and replaced with a new storage tank natural gas water heater sized to provide the renovated building and addition with adequate hot water for personnel showering. The existing unit provided the facility with approximately 30 minutes of continuous single shower operation. The new hot water heater will be sized to provide

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 16 3509 Iron Horse Drive Ladson, SC 29456 minimum 30-minute duration. New domestic hot water recirculation system shall be installed to support existing remote fixture locations.

There are existing stainless steel lab sinks (24” wide x 18” long x 10” deep) throughout the facility that shall be removed and replaced with new hands free operation work sinks.

The renovated facility will be provided with a water cooler/drinking fountain with water bottle filling capability.

The existing facility eye wash stations are not in the scope and shall remain as existing.

The existing facility has a compressed air system consisting of a large Ingersoll-Rand T-30 (175 PSI, 100 CFM) air compressor and Arrow ½ HP 100 SCFM refrigerated air dryer. The air compressor and refrigerated air dryer shall be removed and a new 30-HP packaged unit with integral refrigerated air dryer shall be installed. The new packaged unit shall be connected to the existing compressed air system. Existing piping and connections outside of the mechanical room shall remain existing.

A new natural gas smart meter shall be provided and installed to meet the Base standards. New natural gas piping will be black carbon steel and routed from the new natural gas smart meter to the new HVAC components and domestic water heater.

The existing facility has systems that are nonfunctional and no longer required to support facility operations. These systems are the breathing air and aircraft wash systems which shall be removed from the mechanical room and from accessible locations throughout the facility. All hidden components shall be abandoned in place.

Removing these systems shall provide for additional mechanical room space.

References

IPC 2012 International Plumbing Code IFGC 2012 International Fuel Gas Code NFPA 54 National Fuel Gas Code UFC 1-200-01 General Building Requirements UFC 1-200-02 High Performance and Sustainable Building UFC 3-420-01 Plumbing Systems UFC 3-420-02FA Compressed Air

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 17 3509 Iron Horse Drive Ladson, SC 29456

Fire Protection Design Narrative

Fire Suppression

The existing facility is protected by three separate fire suppression systems. The hangar bay is protected by a high expansion foam system and a wet pipe sprinkler system. A separate wet pipe sprinkler system protects the offices and supporting areas. A separate 4” riser serves each suppression system. Existing risers are connected to the existing fire water line which is fed by the existing fire pump system drawing from the existing 50,000 gallon water storage tank.

The systems serving the hangar bay will not be affected. The wet pipe sprinkler system serving the offices and supporting areas will be modified and extended to protect the renovation and addition. The fire department connection serving the riser manifold and the electric bell will be relocated due to the building addition. No new fire hydrants are required. Existing fire hydrants are within a 350 foot hose lay around the building and are within 150 feet of the new fire department connection. The existing post indicator valve is approximately 72 feet from building and shall remain.

The wet pipe sprinkler system modifications shall be hydraulically calculated. The addition (Office Space) shall be protected throughout in accordance with design criteria for HC-1 per FM Global Property Loss Prevention Data Sheet 3-26, including the revised Table 2 in FM Engineering Bulletin 04-12.

A hydrant flow test performed by CEMS Engineering on September 1, 2015, yielded the following results:

Static Pressure: 50 psi Residual Pressure: 36 psi Flow: 888 gpm

The sprinkler system demand is estimated as follows:

HC-1: Office Areas Design Parameters:

Density: 0.10 gpm/sq. ft.

Design Area: 1,500 sq. ft.

Hose Demand: 250 gpm Area/Sprinkler: 225 sq. ft.

K-factor: 5.6 Height above grade: 12 ft.

Inside Pressure Loss: 15 psi Outside Pressure Loss: 15 psi (including 12 psi backflow preventer loss)

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 18 3509 Iron Horse Drive Ladson, SC 29456

HC-1 Flow Demand Est. Sprinkler Demand = 0.10 gpm/sq. ft.X1,500 sq. ft.X130% = 195 gpm

Total Demand with Hose stream = 195 gpm + 250 gpm = 445 gpm

HC-1 Pressure Demand

End head pressure: P = (Q/K)2 Q = 0.10 gpm/sq. ft. X 225 sq. ft. = 22.5 gpm

K = 5.6 P = 16.1 psi

Pressure loss for height: Ph = 0.433/ft X 12 ft = 5.20 psi Inside Pressure Loss = 15 psi Outside Pressure Loss = 15 psi

Total Pressure Demand = 16.1 psi + 5.20 psi + 15 psi + 15 psi = 51.3 psi

The hydraulically most demanding portion of the building is 445 GPM at 51.3 PSI. The existing sprinkler system is tied into the Fire Water Line. The existing Fire Water Line is connected to the existing fire pump system. Existing fire pumps are rated for 2,000 GPM at 121 PSI. These supply sufficient water and pressure to the existing sprinkler risers to meet the hydraulically most demanding portion of the building.

Fire Alarm

The building is served by an existing addressable fire alarm system. The main fire alarm control panel is an IntelliKnight Model 5820XL. A separate Potter releasing panel is provided for the high expansion foam system. A Monaco radio transmitter reports fire alarm signals to the base fire department.

The fire alarm system will be modified and extended to serve the renovation and addition. New audible and visual notification appliances will be added as necessary.

Existing devices and appliances will be relocated as necessary to accommodate the renovation.

Building Code/Life Safety Analysis

1. Occupancy classification: Mixed use with Group B, S-1

Group B - IBC 304 Business - NFPA 101 6.1.11.1 & Chapter 38 Group S-1 IBC 311.2 Special-Purpose Industrial – NFPA 101 40.6

2. Type of construction (IBC): Type II-B (unprotected/fully sprinklered)

3. IBC Table 503: Allowable height and building area:

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 19 3509 Iron Horse Drive Ladson, SC 29456

Group B Allowable height: 4 stories (55') Allowable area: 23,000 sf

Automatic Sprinkler Increases Height (IBC 504.2): 1 story and 22’ => 4 stories (75’)

Area (IBC 506.3): +300% => 69,000 sf Group S-1

Allowable height: 4 stories (55') Allowable area: 17,500 sf

Automatic Sprinkler Increases Height (IBC 504.2): 1 story and 20’ => 4 stories (75’)

Area (IBC 506.3): +300% => 52,500 sf

Actual height: 1 story above grade 36’ Actual area/floor addition: Approx. 17,793 sf

4. IBC Table 601 & 602: Fire resistance rating requirements for building elements for

Type II-B

BUILDING ELEMENT RATING (HOUR) REFERENCE (IBC)

Structural Frame (Columns, Girders & Trusses) 0 Table 601 Bearing Walls

Exterior Interior

Table 601 Table 601

Nonbearing Walls & Partitions

Interior 0 Table 601 Floor Construction 0 Table 601 Roof Construction 0 Table 601 Exterior Wall 0 Table 602

EXTERIOR WALLS (IBC Table 602)

Separation Distance Group S-1 Group B <5 FT 2 Hour 1 Hour >5 FT and <10 FT 1 Hour 1 Hour >10 FT 0 Hour 0 Hour

Naval Air Station, Fort Worth Joint Reserve Base, TX www.cemsengineering.com PO Box 1680 20 3509 Iron Horse Drive Ladson, SC 29456

5. NFPA 101 38.1.7=>table 7.3.1.2 - occupant load Business = 100 sf/person

Area = 2,462 sf Business proposed: 25 occupants

Special-Purpose Industrial = 300 sf/person Area = 10,331 sf Special-Purpose Industrial existing: 35 occupants

6. NFPA 101 38.2.3=> table 7.3.3.1 - egress capacity Business stairs = 0.3 (inches per occupant) Business level = 0.2 (inches per occupant)

Required for stairs above grade: N/A for single story.

Required for level above grade: 5” (25 occupants x 0.2” per occupant)

7. NFPA 101 paragraph 38.2.6.3 & 40.2.6.1 - exit access travel distance Business required: 300 feet Business proposed: <300 feet

Special-Purpose Industrial required: 400 feet Special-Purpose Industrial existing: <400 feet

8. NFPA 101 paragraph 38.3.6.1 & 40.3.6 - corridor fire-resistance rating (hour) No rated corridor required (sprinklered)

9. NFPA 101 paragraph 38.2.3.2 => 7.3.4 - corridor width Less than 50 occupants => 36” 50 or more occupants => 44” Proposed: 60”

10. NFPA 101 paragraph 38.2.5.2.1 & 40.6.4 – Dead end corridor Business: Permitted: 50 feet Proposed: No dead end corridor

Special-Purpose Industrial: Permitted: 50 feet Proposed: No dead end corridor

11. NFPA 101 paragraph 38.2.5.3.1 & Table 40.2.5.1– common path of travel Business: Permitted: 100 feet Proposed: <100 feet

Special-Purpose Industrial: Permitted: 100 feet Existing: <100 feet

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12. NFPA 101 paragraph 38.2.4.3, 40.6.2.1, & 40.6.2.2 - minimum number of exits Business: Permitted: 1

Required: <100 occupants Proposed: 25 occupants

Required: Travel distance <=100’ Proposed: 80 feet

Business: Proposed: 1

Special-Purpose Industrial: Permitted: 2 (exits not exceeding 150’ on all exterior walls) Special-Purpose Industrial: Existing: 3

13. NFPA 409 paragraph 4.1.3 – Hangar Group Hangar: Group III Aircraft Hangar

14. NFPA 409 paragraph 8.2.2 – Fire rated partition

1-hour fire resistance ratings shall separate the Hangar from the Office, Shop, & Storage areas.

References

FM Global Data Sheet 3-26, With Revised Table 2 from FM Global Engineering Bulletin

04-12 IBC International Building Code, 2012 NFPA 101 Life Safety Code, 2015 NFPA 13 Installation of Sprinkler Systems 2013 NFPA 24 Standard for the Installation of Private Fire Service Mains and their

Appurtenances 2013 NFPA 72 National Fire Alarm and Signaling Code, 2013 NFPA 409 Standard on Aircraft Hangars, 2016 UFC 3-600-01 Fire Protection for Facilities, Change 3, March 2013

08-14 www.mbci.com

Houston, tX | 877.713.6224 Adel, GA | 888.446.6224 AtlAntA, GA | 877.512.6224

AtwAter, CA | 800.829.9324 dAllAs, tX | 800.653.6224 IndIAnApolIs, In | 800.735.6224 lubboCk, tX | 800.758.6224 MeMpHIs, tn | 800.206.6224 oklAHoMA CIty, ok | 800.597.6224 oMAHA, ne | 800.458.6224 pHoenIX, AZ | 888.533.6224 rICHMond, VA | 800.729.6224 roMe, ny | 800.559.6224 sAlt lAke CIty, ut | 800.874.2404 sAn AntonIo, tX | 800.598.6224

Grand V

Features and Benefits:

• The Grand V Panel utilizes concealed clips and eliminates thermal short circuits.

• The standard exterior surface is 22 gauge Galvalume® or Galvanized coated steel with silicone polyester or KYNAR 500®/HYLAR 5000® coatings.

• IMPs allow for fast assembly times and easy installation, resulting in reduced construction labor costs and earlier business starts.

2", 2 ½", 3" or 4"

24, 30 and 36"

Exterior Surface

Interior Surface

The Grand V wall panel employs a flat appearance providing a monolithic look that is great for high-profile architectural applications. The Grand V panel is available in widths of 24", 30" and 36".

Product Specifications Applications: Wall

Coverage Widths: 24", 30", 36"

Thicknesses: 2", 2½", 3", 4"

Lengths: Recommended maximum is 32'

Attachment: Concealed Fastening System

Insulation Material: Non-CFC foamed-in-place polyurethane foam cured to achieve a minimum density of 2.2 pounds

Accessories: Fasteners, Sealants, Standard and Custom Trim

Reveal Options: 1/8" (standard), ¼", ½", ¾", 1", 1½", 2", 2½" and 3"

Exterior Gauge: 22

Interior Gauge: 26 (standard); 24, 22 (optional)

Exterior Finishes: Stucco-embossed

Interior Finishes: Stucco-embossed, Light Mesa Profile

Exterior Coatings: Signature® 300, Applied Finishes

Interior Coating: Igloo White (standard)

Descriptions and specifications contained herein were in effect at the time this publication was approved for printing. In a continuing effort to refine and improve products, MBCI reserves the right to discontinue products at any time or change specifications and/or designs without incurring obligation. To ensure you have the latest information available, please inquire or visit our website at www.mbci.com. Application details are for illustration purposes only and may not be appropriate for all environmental conditions, building designs or panel profiles. Projects should be designed to conform to applicable building codes, regulations and accepted industry practices. If there is a conflict between this manual and project erection drawings, the erection drawings will take precedence. 08-14

CateGory CharaCteristiC test Method PurPose result enVironMental

Thermal Transmission

ASTM C518 Measure the heat transmission coefficient per unit thickness (k-factor)

0.140 BTU·in/hr·ft2·° F (7.14/inch)

at 75° F mean temperature

0.126 BTU·in/hr·ft2·° F (7.94/inch)

at 40° F mean temperature

0.118 BTU·in/hr·ft2·° F (8.47/inch)

at 20° F mean temperature

ASTM C1363 Measures the resistance to heat flow (or R-Value) of a construction assembly in a guarded hot box

Varies up to R-8.5/inch of panel thickness at 40° F mean temperature (See Appendix A)

Air Leakage Through Wall Panel Joints ASTM E283

Determines the air leakage characteristics of metal wall panels under specified air pressure differences at ambient conditions

0.01 cfm/ft2 at 20 psf static pressure

Water Penetration Through Wall Panel Joints ASTM E331

Determines the resistance to water penetration of metal wall panels under uniform static air pressure difference

No uncontrolled water penetration through the panel joints at a static pressure of 20 psf

FoaM ProPerties

Foam Density ASTM D1622 Determines the apparent density of rigid cellular plastics 2.3 pcf

Foam Compressive Strength ASTM D1621 Determines the behavior of cellular materials under compressive load 15 psi through-thickness 22 psi other directions

Foam Tensile Strength ASTM D1623 Measures the tensile strength of the foam from a cored sample

30 psi through-thickness 33 psi lowest any other direction

Foam Shear Strength ASTM C273 Measures the shear strength of the foam from a cored sample 16 psi lowest in any direction

Fire resistanCe

Surface Burning Characteristics ASTM E84

Provides comparative measurements of surface flame spread and smoke density measurements relative to that of select grade red oak and fiber-cement board surfaces under specific fire exposure conditions

Flame Spread index of 20, Smoke Developed index of 350

Room Fire Performance

FM 4880

Evaluates insulated roof and wall panels, interior finishes or coatings, and exterior wall systems for their performance in regard to fire

Class 1 Rating of wall and roof panels for use in unlimited height structures

NFPA 286 Fire tests for the flammability characteristics of wall and ceiling interior finishes

The Panels meet the criteria of the IBC Section 803.1.2.1

CAN/ULC S101 Standard method of fire endurance tests of building construction and materials

The Panels provide 15-minute remain-in-place fire resistance rating

CAN/ULC S102 Standard method of test for surface burning characteristics of building material and assemblies

Flame Spread index of 0 Smoke Developed Index of 45 Fuel Contributing Value of 0

CAN/ULC S134 Standard method of fire test of exterior wall assemblies

The Panels meet the criteria published in the standard

CAN/ULC S138 Standard method of test for fire growth of insulated building panels in a full-scale room configuration

The Panels meet the criteria published in the standard

Wall Fire Performance NFPA 285 Evaluation of fire propagation characteristics of exterior non-load bearing wall assemblies in regard to fire

Panels meet the requirement of the standard struCtural

Uplift Resistance ASTM E72

ASTM E330

Provides a standard procedure to evaluate or confirm structural performance under uniform static air pressure difference

See Load Chart Section

Positive Load Resistance ASTM E72 Tests the behavior of segments of wall construction under conditions representative of those encountered in service

See Load Chart Section

Wall listinGs Wall Performance – FM Global® (See Note 1 below)

FM 4881

Sets performance standards for panel walls includ-ing wind load resistance and hail resistance Requires a Class 1 rating by FM Global Standard 4880 as a prerequisite

See FM Global Approval Guide for Building Products complete listings

Grand V

Notes:

1. Wall panels with textured coatings are not approved for the FM 4881 test method.

www.ecoficientseries.com

C O

LO

RC

H A

R T

SIGNATURE® 300

Standard Stocked Colors

SIGNATURE® 300

Standard Non-Stocked Colors

Minimum quantities and/or extended lead times may be required. Please inquire.

ALMOND

SR .63 SRI 75

REGAL GRAY

SR .55 SRI 64

POLAR WHITE

SR .70 SRI 85

SANDSTONE

SR .60 SRI 71

NATURAL PATINA

SR .41 SRI 46

AEGEAN BLUE

SR .29 SRI 29

SMOKE GRAY

SR .50 SRI 57

TERRA COTTA

SR .38 SRI 41

BROWNSTONE

SR .47 SRI 54

HARBOR BLUE

SR .28 SRI 27

COLONIAL RED

SR .34 SRI 36

SLATE GRAY

SR .37 SRI 41

BRITE RED

SR .49 SRI 56

PACIFIC BLUE

SR .29 SRI 30

HUNTER GREEN

SR .35 SRI 37

SPRUCE

SR .36 SRI 39

TUNDRA

SR .46 SRI 52

SNOW WHITE

SR .65 SRI 78

CLASSIC GREEN

SR .27 SRI 27

MEDIUM BRONZE

SR .33 SRI 34

SIGNATURE® 300

Standard Non-Stocked Metallic Colors

NOTE: Metallic coatings are directional.

Panels and trim must be installed oriented in the same direction to prevent perceived shade variances.

Final color selection should be made from actual color chips.

See product selection chart for gauge and color availability.

Heavier gauges, narrower widths and embossing minimize “oil canning.”

A 25-year limited paint warranty is available for all colors upon written request. For locations outside the continental USA and Canada, please inquire.

Signature® is a registered trademark of NCI Group, Inc.

ENERGY STAR®

Qualified Color

SIGNATURE® 200

Standard Stocked Colors

SILICONIZED POLYESTER STANDARD GLOSS

*Igloo White is a Straight Polyester.

STANDARD INTERIOR COLOR

*Igloo White is a Straight Polyester.

SIGNATURE® 200

Standard Non-Stocked Colors

SILICONIZED POLYESTER

**Polar White is a Straight Polyester.

Minimum quantities and/or extended lead times may be required. Please inquire.

IGLOO WHITE*

CHAMPAGNE

SR .40 SRI 43

WEATHERED ZINC

SR .38 SRI 41

DARK GRAY METALLIC

SR .35 SRI 36

COPPER METALLIC

SR .46 SRI 51

SILVER METALLIC

SR .52 SRI 58

IGLOO WHITE*

SR .64 SRI 77

WINTER WHITE

SR .59 SRI 69

LIGHT STONE

SR .50 SRI 58

ASH GRAY

SR .47 SRI 55

HAWAIIAN BLUE

SR .32 SRI 33

FERN GREEN

SR .27 SRI 27

DESERT SAND

SR .42 SRI 48

SADDLE TAN

SR .48 SRI 55

CRIMSON RED

SR .33 SRI 36

SOLAR WHITE

SR .74 SRI 91

POLAR WHITE**

SR .58 SRI 69

RUSTIC RED

SR .36 SRI 39

KOKO BROWN

SR .28 SRI 29

CHARCOAL GRAY

SR .27 SRI 27

BURNISHED SLATE

SR .28 SRI 29

KOKO BROWN

SR .28 SRI 29

CHARCOAL GRAY

SR .27 SRI 27

GeigerT Polygon

GeigerT Polygon

Standard Stocked Standard Non-Stocked

WARM LIMESTONE

R: .45 E: .87 SRI: 51

SURREY BEIGE

R: .32 E: .87 SRI: 33

ANTIQUE BRONZE

R: .26 E: .86 SRI: 25

TEXTURED

WHITE

R: .64 E: .86 SRI: 77

MEDIUM BEIGE

R: .39 E: .86 SRI: 42

STONE

R: .51 E: .85 SRI: 58

LIGHT GRAY

R: .35 E: .86 SRI: 37

Standard Stocked Standard Non-Stocked

WARM LIMESTONE

R: .45 E: .87 SRI: 51

SURREY BEIGE

R: .32 E: .87 SRI: 33

ANTIQUE BRONZE

R: .26 E: .86 SRI: 25

TEXTURED

WHITE

R: .64 E: .86 SRI: 77

MEDIUM BEIGE

R: .39 E: .86 SRI: 42

STONE

R: .51 E: .85 SRI: 58

LIGHT GRAY

R: .35 E: .86 SRI: 37

Coating

Polyurethane Foam Interior Panel

Exterior Panel

Coating Application

Applied FINISHES

NOTE: These finishes require the exterior skin of the panel to be manufactured from coil with a matta matte finish of the same color as the applied finish.

*Available in Richmond, VA only.

Tuff Wall® Stucco-Like Metal Series Coarse Aggregate

NOTE: These applied finishes are standard for StoneWall panel. They are also optional finishes for Grand V, Grand H, Royal, Summit, Vintage, Insulated 7.2 and Insulated R (wall only) panels.

NOTE: These finishes require the exterior skin of the panel to be manufactured from coil with a matta matte finish of the same color as the applied finish.

*Available in Richmond, VA and Las Vegas, NV only.

Tuff-Cast™ Finished Precast Concrete Metal Series Fine Aggregate

*Available in Jackson, MS only.

Granite Rock

NOTE: These finishes require the exterior skin of the panel to be manufactured from a Saddle Tan coil.

GRANITE ROCK

Wall Panels

SIGNATURE® 300 & SIGNATURE® 200

Product INFORMATION

Insulated Fire Resistant Panel

Gauges Exterior: 26 and 24 Interiors: 26 and 24

Widths: 42" Thicknesses: 4", 5", 6", 7" and 8" Length: Recommended maximum is 40'

Insulated 7.2 Panel

Gauges Exterior: 26, 24 Interiors: 26, 24

Widths: 36" Thicknesses: 2 ½", 3" ,4", 5" and 6" Length: Recommended maximum is 36'

Gauges Exterior: 26, 24 and 22 Interior: 26, 24 and 22 Width: 42" Thicknesses: 2", 2 ½", 3", 4", 5" and 6" Length: Recommended maximum is 50'

Classic®

Wall Panels

SIGNATURE® 300, SIGNATURE® 200

AND APPLIED FINISHES

Gauges Exterior: 22 Interior: 26, 24 and 22 Width: 24", 30" and 36" Thicknesses: 2", 2 ½", 3" and 4" Length: Recommended maximum is 32' Reveals: " (standard), ¼", ½", ¾", 1", 1 ½", 2", 2 ½" and 3"

Grand V

Gauges Exterior: 22 Interior: 26, 24 and 22 Width: 24", 30" and 36" Thicknesses: 2", 2 ½" and 3" Length: Recommended maximum is 24' Reveals: " (standard), ¼", ½", ¾", 1", 1 ½", 2", 2 ½" and 3"

Grand H

Gauges Exterior: 24 and 22 Interior: 26, 24 and 22 Width: 36" and 42" Thicknesses: 2", 2 ½", 3" and 4" Length: Recommended maximum is 40'

Summit

Gauges Exterior: 26, 24 and 22 Interior: 26, 24 and 22 Width: 36" and 42" Thicknesses: 2", 2 ½", 3", 4", 5" and 6" Length: Recommended maximum is 50'

Royal

Gauges Exterior: 24 and 22 Interior: 26, 24 and 22 Width: 36" and 42" Thicknesses: 2", 2 ½", 3" and 4" Length: Recommended maximum is 40'

Vintage

Gauges Exterior: 24 and 22 Interior: 26, 24 and 22 Width: 36" and 42" Thicknesses: 2", 2 ½", 3" and 4" Length: Recommended maximum is 24' Available in applied finishes only.

StoneWall Available in applied finishes only.

Gauges Exterior: 24 and 22 Interiors: 26, 24 and 22

Widths: 30", 36" and 42" Thicknesses: 2", 2 ½", 3" ,4", 5" and 6" Length: Recommended maximum is 50'

Insulated BattenLok®/CFR

Roof Panels

SIGNATURE® 300 & SIGNATURE® 200

Interior Partition & Ceiling Panel

Gauges: 26 (Both Surfaces) Width: 44 ½" Thicknesses: 2", 2 ½", 3", 4", 5" and 6" Length: Recommended maximum is 50' Standard Coating: Igloo White

Interior Panel

IGLOO WHITE

HPCI BarrierTM Panel

Exterior & Interior Facings:

Minimum .016" thick HPCI

Galvanized Steel Widths: 42" Thicknesses: 2", 3" and 4" Length: Recommended maximum is 24' Available in HPCI White only.

Barrier Panel

HPCI WHITE

Gauges:

Exterior: 26, 24 and 22 Interior: 26, 24 and 22 Widths: 36” Thicknesses: 1½", 2", 2 ½", 3", 4", 5" and 6" Length: Recommended maximum is 50' Available for both roof & wall applications

* Available in applied finishes in wall panels only.

Insulated R Panel

Roof & Wall Panels

SIGNATURE® 300 & SIGNATURE® 200

AND APPLIED FINISHES*

www.ecoficientseries.com 08-15

Houston, TX 877-713-6224 Adel, GA 888-446-6224 Atlanta, GA 877-512-6224

Atwater, CA 800-829-9324 Dallas, TX 800-653-6224 Indianapolis, IN 800-735-6224

Lubbock, TX 800-758-6224 Memphis, TN 800-206-6224 Oklahoma City, OK 800-597-6224

Omaha, NE 800-458-6224 Phoenix, AZ 888-533-6224 Richmond, VA 800-729-6224

Rome, NY 800-559-6224 Salt Lake City, UT 800-874-2404 San Antonio, TX 800-598-6224

Descriptions and specifications contained herein were in effect at the time this publication was approved for printing. In a continuing effort to refine and improve products, MBCI reserves the right to discontinue products at any time or change specifications and/or designs without incurring obligation. To ensure you have the latest information available, please inquire or visit our website at www.mbci.com. Application details are for illustration purposes only and may not be appropriate for all environmental conditions, building designs or panel profiles. Projects should be designed to conform to applicable building codes, regulations and accepted industry practices.

If there is a conflict between this manual and project erection drawings, the erection drawings will take precedence.

GeigerT Oval

CEMS Engineering, Inc.

320-C Midland Parkway

Summerville, SC 29485

PHONE: (843) 875-3637

CEMS Structural Calculations

Job Name: Addition/Renovation 301st Maintenance Building 1656

CEMS Job Number: 10-153S Construction Contract Number: FA6643-10-D-0002-5D16

Base Project Number: DDPM 130004

Location: Naval Air Station Fort Worth Joint Reserve Base, TX

Date: 12-Apr-16 Design Criteria

Loads A. Floor

Floor Live Load = N/A psf Floor Dead Load = N/A psf

B. Roof Roof Live Load = 20 psf

Roof Dead Load = 10 psf Ground Snow Load = 5 psf

C. Wind Basic Wind Speed = 115 mph

Occupancy Category = II Exposure Category = C

D. Seismic Site Class = C

Occupancy Category = II Design Category = A

Importance Factor = 1.00

SDS = 0.072

SD1 = 0.057

E. Foundation Soil Bearing Pressure = 2500 psf (Per Geotechnical Report)

1/37

CEMS Job #: 10-153S Project Title: Add/Renovate 1656 Location:

Calculated By: Brad Minor, PE, MLSE Checked By: Brad Minor, PE, MLSE Date:

Dead Load Live Load Diaphragms (psf) (psf) pg(psf) pf (psf) pm =Ispg

Roof 10 20 5 3.5 5 1. 25% of Storage Live Load Ceiling 10 0 2.

Elevated Floors 0 0 Elevated Decks 0 0 3.

Walls Dead Load 4.

Bearing(Type 1) 50 (8" masonry) Bearing(Type 2) 8 (Metal Studs w/ gyp. Board each side) 5.

Non-Bearing(Type 1) 8 (Mtl. Studs w/ gyp. Board each side) Non-Bearing(Type 2) 45 (8" CMU)

EW wall Total, L = 59 ft pf = 0.7CeCtIpg

Ce (Table 7-2) = 1.0 Ct (Table 7-3) = 1.0

New Addition Is (Table 1.5-2) = 1.0 New Wall =

23 ft

New Extension Existing Portion of Low Roof Area Existing Wall =

26 ft

10 ft

4/12/2016

Effective Seismic Weight, W, includes the total dead load above base…