S2-6_-_WPA_INFILL_ROOF_FRAMING_PLAN_06_11_26_0002.pdf

C

A

D

E

F

G

H

J

I

B

3 4

(E) TRUSS - TYPE T3

(E) TRUSS - TYPE T3

(E) TRUSS - TYPE T3

S3.1

S3.1

F-B

(E) CONCRETE-ENCASED

STEEL BEAM

SUPPORTING ONE-WAY

REINF. CONC. SLAB,

TYP. BETWEEN COLUMN

LINES G & J.

(E) SKYLIGHT

OPENING

(E) TRUSS - TYPE T4

06-01

03-03

03-03 03-03

(E) MAS. PARAPET

(E) C10 PURLIN, TYP.

TYP. @

WOOD ROOF

05-04

05-04

05-0105-01

REMOVE (E) STEEL CAGING

AND RE-BUILD TOP OF

MASONRY CHIMNEY IN

KIND DOWN TO BOTTOM OF

HANGER 4 ROOF EAVE

06-02 TYP. AT ALL PURLINS

(E

C

B (E

C

B (E

C

B (E

C

B (E

C

B (E

C

B (E

C

B

(E

C

B

(E

C

B (E

C

B (E

C

B (E

C

B (E

C

B

(E

C

B

05-01

TYP. ALL

STEEL

FRAMING AND

BRACING

05-12

FOR HEIGHT

OF TRUSS

05-11

03-03

05-11 05-03 05-0305-03

05-03 05-03

COVER (E) ROOF

OPENINGS PER ARCH

DWGS, TYP. 4 LOC.

PERFORM CONCRETE

REPAIRS AT CURB AS

REQUIRED TO PROVIDE

ADEQUATE SUBSTRATE

FOR ANCHORAGE OF

COVER.

EXISTING INFILLED

SKYLIGHT OPENING TO

RECEIVE NEW

SKYLIGHTS PER ARCH.

DWGS, TYP. (9) LOC.

05-13

05-13

05-13

PLAN NOTES

1. SEE DRAWINGS S0.1, S0.2 AND S0.3 FOR GENERAL NOTES AND SCHEDULES.

2. DATUM ELEVATION 0'-0" REFERENCES TOP OF GROUND FLOOR (LEVEL 0) ELEVATION

13.73'. ALL ELEVATIONS INDICATED ARE RELATIVE TO THE DATUM ELEVATION.

3. EXISTING FRAMING AND LAYOUT INDICATED ON PLAN IS PER THE 1929 DRAWINGS AND

SHALL BE VERIFIED IN THE FIELD IN AREAS OF WORK.

4. SEE DRAWINGS S6.1 AND S6.2 FOR TYPICAL STEEL REPAIR DETAILS.

5. SEE DRAWING S6.3 FOR TYPICAL LINTEL DETAILS, DRAWING S6.4 FOR TYPICAL MASONRY

REPAIR DETAILS, AND S6.5 FOR TYPICAL CONCRETE REPAIR DETAILS.

6. COORDINATE ALL DIMENSIONS WITH ARCHITECT, CIVIL, MEP AND OTHER PRIME

CONTRACTORS.

7. FOR BOILER ROOM ROOF SLAB CONCRETE REPAIRS, ASSUME 20 SF PARTIAL DEPTH

REPAIR PER LOCATION INDICATED. ASSUME (8) ADDITIONAL LOCATIONS.

DATE:

DESIGNED:

TECH. REVIEW:

SUB SHEET NO.

PMIS/PKG NO.

DRAWING NO.

SHEET

TITLE OF SHEET

OF

190066

GATE 308504

HANGARS 3 & 4 REHABILITATION 150

/1

/2

:4

:4

P M

C U s e rs

\j th ib a u \D o c u m e n ts

\S T

R U

C T

G

A T

E F lo y d B e n n e t F ie ld r2 jt h ib a u V

G D

.r v t

JCT / EB / PA

MAS

NF

12/19/2025

S2.6

WPA INFILL ROOF

FRAMING PLAN

SCALE BS2.6

1 WPA INFILL TOP CHORD AND ROOF FRAMING PLAN

KEYNOTE LEGEND

03-03 PEFORM CONCRETE REPAIRS IN EXISTING ROOF SLAB OR WHERE INDICATED PER

TYPICAL DETAILS 1/S6.5 AND 2/S6.5. SEE ARCHITECTURAL DRAWINGS FOR ADDITIONAL

REPAIRS.

05-01 WIRE BRUSH CLEAN TO BARE METAL ALL STRUCTURAL STEEL (COLUMNS, BEAMS,

TRUSS ELEMENTS AND CONNECTIONS) TO REMOVE SURFACE CORROSION AND RUST

SCALING DEPOSITS. FOR CLERESTORY BEAMS AT THE INTERSECTION OF THE

HANGARS AND THE WPA INFILL BUILDING, SEQUENTIAL REMOVAL OF THE TOP

COURSE OF BRICK BELOW MAY BE REQUIRED TO CLEAN THE BEAM BOTTOM FLANGE;

RESET BRICK AFTER CLEANING AND COATING STEEL. AFTER CLEANING, DETERMINE

SECTION LOSS BY COMPARING RESULTING ELEMENT THICKNESS (MEASURED USING

DIGITAL CALIPERS) TO THE ORIGINAL THICKNESSES SHOWN ON THE DRAWINGS.

REINFORCE STRUCTURAL MEMBERS WHERE FRAMING ELEMENTS HAVE EXPERIENCED

MORE THAN 5% SECTION LOSS (REFERENCE COLUMN REPAIR DETAILS ON S6.1 AND

BEAM REPAIR DETAILS ON S6.2). REINFORCEMENT SHALL CONSIST OF FIELD WELDING

NEW STEEL REINFORCEMENT SECTIONS TO THE EXISTING COMPROMISED MEMBERS.

FOR PRICING, ASSUME THAT 100% OF ALL SUPERSTRUCTURE ELEMENT SURFACES

WILL REQUIRE RUST CLEANING AND COATING WITH ZINC-RICH, RUST-INHIBITING

PAINT. SEE DETAILS FOR ASSUMED QUANTITIES OF REINFORCEMENT.

05-03 TEMPORARILY SHORE BRICK MASONRY ABOVE LINTEL WHERE REQUIRED. REMOVE

BRICK MASONRY AROUND CORRODED LINTEL AND REPLACE LINTEL WITH HOT-DIPPED

GALVANIZED ANGLES TO MATCH EXISTING IN SIZE (SEE ASSUMED LINTEL PROFILES

ON S6.3, V.I.F.). REBUILD MASONRY WITH APPROPRIATE MORTAR AND BRICK PER

ARCHITECTURAL SPECIFICATIONS. SEE ARCHITECTURAL ELEVATIONS FOR EXTENTS

OF MASONRY REBUILDING.

05-04 REMOVE MASONRY ENCASEMENT AT BEAM POCKET TO FULLY EXPOSE BEAM END AND

BEARING PLATE. CLEAN ALL STEEL PER 05-01 AND REINFORCE DETERIORATED BEAM

END WITH WELDED STEEL PLATES PER DETAILS ON S6.2. REPLACE BEARING PLATE

WHERE REQUIRED. COAT BEAM END AND BEARING PLATE WITH ZINC-RICH,

RUST-INHIBITING PAINT PRIOR TO PATCHING MASONRY.

05-11 REMOVE LOOSE CONCRETE ENCASEMENT ON STEEL BEAM. CLEAN EXPOSED

SURFACES OF BEAM OF ALL RUST AND COAT WITH ZINC-RICH, RUST-INHIBITING PAINT.

REPAIR CONCRETE ENCASEMENT PER TYPICAL DETAIL 3/S6.5.

05-12 REMOVE MASONRY ENCASEMENT AT COLUMN TO FULLY EXPOSE COLUMN FLANGES

AND WEB. CLEAN ALL STEEL PER 05-01. COAT COLUMN WITH INTUMESCENT PAINT UP

TO TRUSS BOTTOM CHORD LEVEL PER ARCHITECTURAL SPECIFICATIONS PRIOR TO

PATCHING MASONRY.

05-13 EXTREME SECTION LOSS AT EXISTING CLERESTORY BEAM WEB. CLEAN ALL STEEL

PER 05-01. REINFORCE DETERIORATED BEAM WEB WITH WELDED STEEL PLATES PER

TYPICAL DETAIL 3/S6.2. COAT BEAM WITH ZINC-RICH, RUST-INHIBITING PAINT PER

ARCHITECTURAL SPECIFICATIONS. PROVIDE UNIT COST FOR REPAIRS.

06-01 REPLACE EXISTING ROOF DECKING WITH NEW 2x (1-1/2" THICK) TONGUE AND GROOVE

ROOF DECKING. OVERLAY WITH 15/32" PLYWOOD SHEATHING. SHEATHING PANELS

SHALL BE INSTALLED WITH LONG DIMENSION PERPENDICULAR TO DECKING. SEE

GENERAL NOTES FOR MATERIAL INFORMATION AND FASTENERS. ASSUME 100%

REPLACEMENT OF ROOF DECKING FOR PRICING.

06-02 REPLACE EXISTING NAILERS WITH NEW (2)2x4 NAILERS BOLTED TO PURLINS. RE-USE

EXISTING 1/2" DIAMETER BOLTS WHERE IN GOOD CONDITION. REPLACE

DETERIORATED BOLTS IN KIND. SEE TYP. DETAIL 3/S6.6. ASSUME 100% REPLACEMENT

OF NAILERS AND 100% REPLACEMENT OF BOLTS FOR PRICING.

SCALE OF FEET

0'8' 8' 16'

SCALE B BUILDING

NORTH