130541_seismic_restraint_requirements_.pdf

VTS MILAN I-2 RESTORATION ARNG # 47110023

LAVINIA, TENNESSEE TENNESSEE ARMY NATIONAL GUARD

HFR Design 130541 - 1

SEISMIC RESTRAINT REQUIREMENTS

SECTION 130541

SEISMIC RESTRAINT REQUIREMENTS FOR NON-STRUCTURAL COMPONENTS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Section includes seismic restraint for nonstructural components of the building.

1.2 DEFINITIONS

A. Non-structural components of buildings include

1. Architectural Elements: Facades that are not part of the structural system and its shear resistant elements; cornices and other architectural projections and parapets that do not function structurally; glazing; nonbearing partitions; suspended ceilings; stairs isolated from the basic structure; cabinets; bookshelves; medical equipment; and storage racks.

2. Electrical Elements: Power and lighting systems; substations; switchgear and switchboards; auxiliary engine-generator sets; transfer switches; motor control centers;

motor generators; selector and controller panels; fire protection and alarm systems;

special life support systems; and telephone and communication systems.

3. Mechanical Elements: Heating, ventilating, and air-conditioning systems; medical gas systems; plumbing systems; sprinkler systems; pneumatic systems; boiler equipment and components.

4. Transportation Elements: Mechanical, electrical and structural elements for transport systems, i.e., elevators and dumbwaiters, including hoisting equipment and counterweights

B. Non-structural components of buildings do not include

1. Equipment weighing less than 400 pounds, which is supported directly on the floor.

2. Equipment weighing less than 20 pounds, which is suspended from the roof or floor or hung from a wall.

3. Gas and medical piping less than 1 inch inside diameter.

4. Piping in boiler plants and equipment rooms less than 1 ¼ inches inside diameter.

5. Other piping less than 2 ½ inches inside diameter, except for automatic fire suppression systems.

6. Piping suspended by individual hangers, 12-inches or less in length from the top of pipe to the bottom of the support for the hanger.

7. Electrical conduits, less than 2 ½ inches inside diameter.

8. Rectangular air handling ducts less than six square feet in cross sectional area.

9. Round air handling ducts less than 28 inches in diameter.

10. Ducts suspended by hangers 12-inches or less in length from the top of the duct to the bottom of support for the hanger.

1.3 INFORMATIONAL SUBMITTALS

A. Delegated Design: Engage a qualified professional engineer, as defined in Division 01 Section "Quality Requirements," to design components of this Section.

B. Coordination Drawings: Submit seismic-force-restraint drawings prepared by and bearing the seal of a professional engineer licensed in state in which Project is located; drawn to scale, on which the following items are shown and coordinated with each other, using input from installers of the items involved:

1. Equipment anchorage.

HFR Design 130541 - 2

a. Description, layout, and location of items to be anchored or braced with anchorage or brace points noted and dimensioned.

b. Details of anchorage or bracing at large scale with all members, parts brackets shown, together with all connections, bolts, welds etc. clearly identified and specified.

c. Numerical value of design seismic brace loads.

d. For expansion bolts, include design load and capacity if different from those specified.

2. Bracing drawings for seismic protection of piping, with data identifying the various support-to-structure connections and seismic bracing structural connections.

a. Single-line piping diagrams on a floor-by-floor basis. Show all suspended piping for a given floor on the same plain.

b. Type of pipe (Copper, steel, cast iron, insulated, non-insulated, etc.).

c. Pipe contents.

d. Structural framing.

e. Location of all gravity load pipe supports and spacing requirements.

f. Numerical value of gravity load reactions.

g. Location of all seismic bracing.

h. Numerical value of applied seismic brace loads.

i. Type of connection (Vertical support, vertical support with seismic brace etc.).

j. Seismic brace reaction type (tension or compression). Details illustrating all support and bracing components, methods of connections, and specific anchors to be used.

3. Bracing drawings for seismic protection of suspended ductwork and suspended electrical and communication cables.

a. Details illustrating all support and bracing components, methods of connection, and specific anchors to be used.

b. Numerical value of applied gravity and seismic loads and seismic loads acting on support and bracing components.

c. Maximum spacing of hangers and bracing.

C. Design Calculations: Submit calculations, design tables, and information used for the design-force levels prepared by and bearing the seal of a professional engineer licensed in state in which Project is located.

D. Evaluation Reports: For concrete anchors from ICC-ES verifying compliance with OSHPD Interpretation of Regulations 28-6.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Seismic Performance: Components of this Section shall withstand the effects of earthquake motions determined per ASCE/SEI 7.

1. The term "withstand" means "the system will remain in place without separation of any parts when subjected to the seismic forces specified and the system will be fully operational after the seismic event."

2. Component Importance Factor is as indicated on Drawings.

3. Assigned seismic use group or building design category as defined in the IBC: [III].

a. Components with an importance factor of 1.5

1) Fuel oil piping and equipment.

2) Natural gas piping.

3) Fire sprinklers and equipment.

4) Medical gas piping and equipment.

5) Ductwork carrying radioactive agents and infectious isolation air.

6) Generator engine exhaust.

HFR Design 130541 - 3

7) Emergency power distribution systems including associated generator, transfer switches, bus ducts, switchboards, conduit, and transformers.

8) Fire alarm system.

9) Domestic hot water system.

10) Heating hot water system.

11) Steam system.

12) Sanitary sewer serving critical care areas.

13) Storm sewer serving critical care areas.

b. All other non-structural components within the HVAC, mechanical, plumbing, and electrical systems are assigned an importance factor of 1.0 and are eligible for the lateral bracing exemptions listed in [ASCE 7-98 Section 9.6]. The exemptions apply to specific smaller sizes of piping and ductwork and less heavy equipment.

Non-exempt portions of these systems shall still be laterally braced. Systems with an importance factor of 1.0 are considered by the code to be not critical for the continued operation of the facility.

4. Component response modification factor: 5.0.

5. Component amplification factor: 2.5.

6. Design spectral response acceleration at short periods (0.2 sec): 0.2422.

7. Design spectral response acceleration at 1-sec period: 0.1087.

8. SMACNA Hazard Level B.

2.2 MATERIALS

A. Structural Steel: ASTM A36.

B. Structural Tubing: ASTM A500, Grade B.

C. Structural Tubing: ASTM A501.

D. Steel Pipe: ASTM A53/A53M, Grade B.

E. Bolts & Nuts: ASTM A307.

F. Reinforcing Steel: ASTM A615/615M or ASTM A996/A996M deformed.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas and conditions for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

B. Prepare written report, endorsed by Installer, listing conditions detrimental to performance.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION – GENERAL

A. Provide equipment supports and anchoring devices to withstand the seismic design forces, so that when seismic design forces are applied, the equipment cannot displace, overturn, or become inoperable.

B. Provide anchorages in conformance with recommendations of the equipment manufacturer and as shown on approved shop drawings and calculations.

HFR Design 130541 - 4

C. Construct seismic restraints and anchorage to allow for thermal expansion.

D. Testing Before Final Inspection

1. Test 10-percent of anchors in masonry and concrete per ASTM E488, and ACI 355.2 to determine that they meet the required load capacity. If any anchor fails to meet the required load, test the next 20 consecutive anchors, which are required to have zero failure, before resuming the 10 percent testing frequency.

2. Before scheduling Final Inspection, submit a report on this testing indicating the number and location of testing, and what anchor-loads were obtained.

3.3 MECHANICAL DUCTWORK AND PIPING; BOILER PLANT STACKS AND BREACHING;

ELECTRICAL BUSWAYS, CONDUITS, AND CABLE TRAYS; AND TELECOMMUNICATION

WIRES AND CABLE TRAYS

A. Support and brace mechanical ductwork and piping; electrical bus ways, conduits and cable trays; and telecommunication wires and cable trays including boiler plant stacks and breeching to resist directional forces (lateral, longitudinal and vertical).

B. Brace duct and breeching branches with a minimum of 1 brace per branch.

C. Provide supports and anchoring so that, upon application of seismic forces, piping remains fully connected as operable systems which will not displace sufficiently to damage adjacent or connecting equipment, or building members.

D. Seismic Restraint of Piping

1. Design criteria

a. Piping resiliently supported: Restrain to support 120 percent of the weight of the systems and components and contents.

b. Piping not resiliently supported: Restrain to support 60 percent of the weight of the system components and contents.

E. Piping Connections: Provide flexible connections where pipes connect to equipment. Make the connections capable of accommodating relative differential movements between the pipe and equipment under conditions of earthquake shaking.

3.4 PARTITIONS

A. In buildings with flexible structural frames, anchor partitions to only structural element, such as a floor slab, and separate such partition by a physical gap from all other structural elements.

B. Properly anchor masonry walls to the structure for restraint, to carry lateral loads imposed due to earthquake along with their own weight and other lateral forces.

3.5 CEILINGS AND LIGHTING FIXTURES

A. At regular intervals, laterally brace suspended ceilings against lateral and vertical movements, and provide with a physical separation at the walls.

B. Independently support and laterally brace all lighting fixtures.

END OF SECTION

b. All other non-structural components within the HVAC, mechanical, plumbing, and electrical systems are assigned an importance factor of 1.0 and are eligible for the lateral bracing exemptions listed in [ASCE 7-98 Section 9.6]. The exemptions apply t...

E. Piping Connections: Provide flexible connections where pipes connect to equipment. Make the connections capable of accommodating relative differential movements between the pipe and equipment under conditions of earthquake shaking.