0125-034 WMHS - Field House Repair 02072025.pdf

EXISITNG 5" COLUMN

EXISITNG 20K3 JOISTS @ 2'-0" O.C.

EXISITNG 20K3 JOISTS @ 2'-0" O.C.

EXISTNG 8" CMU BEARING WALL

EXISTING STAIRWELL

EXISTING 12" CMU

EXTERIOR WALL, TYP.

EXISTNG 6" CMU

INTERIOR WALL, TYP.

6" CONCRETE WALL

EXTEND FOOTING AS NEEDED

TO MEET 4'-0" MIN PER 3/S101

REINFORCE EXISTING 12" CMU WALL w/ #7 @ 32"

O.C. & FULLY GROUT ALL CELLS BELOW GRADE

REPLACE THE SECTION OF CMU WALL

THAT HAS FAILED w/ NEW 12" CMU BLOCKS REINFORCED w/ #7 @ 32" O.C.

10' - 4"

EXISITNG 8" BEARING WALL

REINFORCE CORNER OF

CMU WALL PER 3/S101

EXISITNG 5" COLUMN

4" DIA. SCH40 PVC @ 1/8"

PER FOOT SLOPE MIN

4" DIA. SCH40

PVC @ 1/8" PER

FOOT SLOPE MIN

PROVIDE VERTICAL CLEANOUT

PROVIDE

VERTICAL

CLEANOUT

PROVIDE POP-UP

DRAIN TERMINATION

PROVIDE POP-UP

DRAIN TERMINATION

The existing wall is actively failing. The scope of work is the structural reinforcement of the CMU bearing wall on plan north so that it is sufficient for lateral earth pressures with hydraulic loads and axial loading.

Structural Scope of Work

#5 CORNER BARS UNLESS

NOTED OTHERWISE ON

PLANS AND ELEVATIONS

(1) #7 @ 32" ON CENTER

KNOCK OUT FACE SHELL,

PLACE REBARS PER PLAN,

FORM AND POUR GROUT INTO

CELLS CONTAINING REBAR

EXISTING CMU WALL

NOTE: GROUT SHALL BE

QUIKRETE NON-SHRINK

PRECISION GROUT OR

EQUIVALENT

GROUT REMIANING UN-REINFORCED

CELLS WITH FLOWABLE GROUT

EXISTING SLAB

3"

#5 VERT. @ 8" O.C.

6" CONCRETE WALL

NOTE:

FOUNDATION DIMENSIONS ARE

MINIMUM; EXISTING UNKNOWN #5 @ 18" O.C. EPOXY EMBEDDED

5" INTO EXISTING FOOTING w/

HILTI HIT-RE 100 EPOXY, TYP.

#5 @ 18" O.C. CONT. (2) BARS MINMINIMUM

4' - 0"

4'-0" HEEL MIN, EXTEND

EXISTING FOOTING AS NEEDED

/2

12" MIN VDOT #57 STONE OR

OTHER OPEN GRADED

POROUS BACKFILL

#7 @ 32" O.C.

EXISTING JOISTS

BEARING ON CMU WALL

EXISTING 12" CMU WALL

4" PERFORATED SCH 40 PVC

(SEE PLAN FOR ROUTING)

EPOXY EMBED 5" INTO

EXISTING FOOTING w/ HILTI

HIT-RE 100 EPOXY, TYP.

EXISTING FOOTING

EXISTING WALL. GROUT

ALL CELLS BELOW GRADE

CCW MIRADRAIN SYSTEM OR

EQUIVALENT; FULL SURFACE

BELOW GRADE

#5 HORIZ. @ 16" O.C.

#5 @ 8" O.C.

#5 DOWELS @ 18" O.C. GRID

#5 @ 18" O.C.

/2

8" ADDITIONAL DEPTH, MINIMUM

SLOPE FINISH GRADE

AWAY FROM BUILDING

1/2" DIA. THREADED RODS @ 32"

O.C. RODS REMAIN IN PLACE

PERMANENTLY. REMOVE NUT AND

CUT OFF FLUSH WITH WALL

FOLLOWING COMPLETION OF

STRUCTURAL WORK PRIOR TO

WATERPROOFING

NOTE:

REPAIRS SHALL PROCEED IN THE FOLLOWING ORDER

1. EXCAVATE BEHIND WALL

2. GROUT AND INSERT REINFORCMENT IN CMU

3. VERIFY FOOTING DIMENSIONS AND CONSULT WITH ENGINEER

4. PLACE CONCRETE FOOTING

5. PLACE CONCRETE WALL

6. APPLY WATERPROOFING SYSTEM

7. INSTALL DRAINAGE SYTEM

8. BACKFILL

ASSUMED

1' - 6"

18" TOTAL DEPTH, MINIMUM

A S

S U

M E

D

#5 CONT.

CAST OR PROVIDE 1:1 CANT STRIP

CAST OR PROVIDE 1:1 CANT STRIP

Scale

Project Number

Date

Drawn by

Checked by www.engsoln.com

Engineering Solutions Structural Engineers

Harrisonburg 540-442-8787

Charlottesville 434-202-8527

Richmond 804-433-3124

Project:

Client:

Sheet Notes

Keynotes

Legend

Designed by

As indicated

2/7/2025 8:25:55 AM

S101

REPAIR PLAN

0125-034

WMHS - FIELD HOUSE REPAIR

GREENE COUNTY SCHOOLS

02/07/2025

TM

AR

254 MONROE DR.

STANARDSVILLE VA 22973

EW/BB

No. Description Date

1 FOR PERMIT AND

CONSTRUCTION

02/07/2025

1" = 1'-0"S101

3 CORNER REINFORCING PLAN

1" = 1'-0"S101

2 REINFORCING EXISTING MASONRY DETAIL

1/8" = 1'-0"S101

1 PLAN

3/4" = 1'-0"S101

4 SECTION

General Notes

1. All structural work shall be coordinated with architectural and mechanical drawings and shall conform to the project specifications, including the 2021 IBC, IMC 2021, 2021 IPC, 2020 NEC, ICC A117.1-17 and 2021 IEBC, as modified by the Virginia Uniform Statewide Building Code

(VUSBC 2021).

2. Contractor shall provide temporary shoring, bracing and sheeting and make safe all floors, roofs, walls and adjacent property as project conditions require.

3. Dimensions and elevations of existing construction given in structural drawings are based on limited field observations and measurements. The contractor shall verify all information pertaining to existing conditions by actual measurement and observation at the site. All discrepancies between actual conditions and those shown in the contract documents shall be reported to the Engineer of Record for evaluation before the affected construction is put in place.

4. The term "provide", where used in these drawings, is to be interpreted as a combination of both "furnish" and "install".

5. Where standards are referenced herein, it shall be assumed the edition is the current referenced standard by the governing jurisdiction.

Design Load and Parameter Table

Governing Code: 2021 VCC

Risk Category: II

Loads:

LL 20 psf Roof Load

LL 100 psf Gym Floor Load

Pg 30 psf Ground Snow Load

V 110 mph Ultimate Wind Speed

C Wind Exposure Category

SDS 0.12

Design Short Period Response Acceleration

SD1 0.036

Design 1-Second Period Response Acceleration

A Seismic Design Category

Assumed Soil Conditions:

120 pcf Soil Density

1500 psf Soil Bearing Capacity

04220 Concrete Masonry Unit (CMU)

04220.1 General

1.1 All concrete block work shall conform to the "National Concrete Masonry Association Specifications", latest edition and "ACI 530-Building Code Requirements for Masonry Structures", latest edition.

1.2 All block dimensions indicated on structural plans are nominal dimensions.

04220.2 Products

2.1 Concrete block shall be of normal weight aggregate and conform to the following standards:

a. Solid/ hollow block: ASTM C90, Grade N1

2.2 Unless otherwise noted on plans and/ or elevations, concrete block unit strength shall be 2000 psi min.

2.3 All mortar shall be ASTM C270, Type S.

2.4 All grout for filling cells shall be ASTM C476 with minimum compressive strength of 2000 psi but not less than the compressive strength of the masonry assembly, f'm. Where grout cells do not exceed 4" in diameter fine grout shall be used.

03300 Cast in Place Concrete

03300.1 General

1.1 All concrete work shall conform to the ACI following governing standards.

a. American Concrete Institute (ACI) "Code Requirements for Structural Concrete" (ACI 318-14), latest edition per governing building code.

1.2

a. Shop drawings shall be submitted to the structural engineer for review and approval. No concrete work shall commence without approved shop drawings.

b. Concrete Mix Designs - Concrete mix designs shall be prepared in accordance with the most recent edition of ACI 318 and with the information indicated in the mix design table. Submittal shall include which concrete mixes are to be used for mix ID designated below.

03300.2 Products

2.1 Refer to Concrete Manual of Practice for allowable concrete materials including cement, aggregate, water and admixtures.

2.2 Reinforcing steel shall be deformed bars conforming to ASTM A615, Grade 60 or A775 epoxy coated when called out on plan. Reinforcing steel shall be detailed according to the ACI "Details and Detailing of Reinforcement", (ACI 315), latest edition per governing building code.

2.3 All grout shall be non-shrink with a minimum compressive strength of 5,000

PSI.

03300.3 Execution

3.1 Provide clearance from face of concrete to reinforcement as follows unless noted otherwise:

a. Footings: 3"

b. Exterior walls: 2" for #6 or larger, 1-1/2" for #5 or smaller

3.2 Clean and roughen to 1/4" amplitude all existing concrete surfaces to receive new concrete prior to placement.

3.3 Reinforcing dowels, waterstops and other embed items shall be installed and secured prior to concrete. No wet setting of anchors is permitted.

Location f'c(psi) W/CM Ratio Air Content Max

Aggregate Size

Other Requirements

Footings and Foundation Walls 4000 0.5 6% 3/4"

02/07/2025