BRACED WALL PANELS (BWP) - Netcad Drafting
BRACED WALL PANELS (BWP)1
ENGINEERING PRINCIPLES1. FORCES2. PRINCIPLE FAILURE MODES3. DEFINITIONS4. 3 METHODS SHEAR WALL OF ANALYSIS2
FORCESPERPENDICULARWINDSEISMICANDLATERALWIND3
4
5
PRINCIPLEFAILURE MODESTRANSLATIONROTATIONRACKING6
“SHEAR WALL”IS“AN INTERIOR OR EXTERIORWALL ENGINEEREDTO RESIST LATERAL LOADS”7
“BRACED WALLPANEL”ISTHE “PRESCRIPTIVEEQUIVALENT” TO A SHEARWALL8
THREE METHODSOF ENGINEEREDSHEAR WALLANALYSISSEGMENTEDPERFORATEDPORTAL FRAMEEACH METHOD REQUIRES: HOLD-DOWNS FOR UPLIFT ANCHOR BOLTS FORTRANSLATION (SHEAR)9
3&456BRACED WALL PANELS –SIMPLE AS 3,4,5,6 10
IRC§602.10.3 & 4IRCIRC§602.10.5§602.10.6i.e. §602.10.3, 4, 5, 611
IRC §602.10.3PRESCRIPTIVE BWP METHODS1.2.3.4.5.6.7.8.LET IN BRACINGDIAGONAL BOARDSOSB OR PLYWOODSTRUCTURAL FIBERBOARD(INTERMEDIATE SHEATHING)GYP BOARDPARTICLEBOARDPORTLAND CEMENT PLASTERHARDBOARD12
TABLE 602.10.3CONDITIONTYPE OF BRACEMethods1, 2, 3, 4, 5, 6, 7or 8Methods1, 2, 3, 4, 5, 6, 7or 8Methods2, 3, 4, 5, 6, 7or 8AMOUNT OF BRACING Located at each endAt least every 25’ on centerNot less than 16% of braced wallline. Located at each endAt least every 25’ on centerNot less than16% of BWL - Method 325% of BWL - Methods 2 4 5 6 7 8 Minimum 48inches wide panelslocated at each endAt least every 25’ on centerNot less than25% of BWL - Method 335% of BWL - Methods 2 4 5 6 7 8 13
IRC §602.10.4SEISMIC A-B and 100 MPH WINDS 48” PANELS 12’ CORNERS 25’ O.C. 16-25-35% OF THE BWLDEPENDING ON WALL LOCATION AND NUMBER OF FLOORS MIXING AND MATCHING ALLOWED14
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MIX AND MATCHING METHODS 1-8 ALLOWEDMETHOD 8METHOD 6METHOD 3METHOD 2METHOD 1METHOD 416
BRACED WALL PANELSMETHODS 1-8EQUIVALENT TOSEGMENTED SHEAR WALLS17
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§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5§602.10.6SO WHAT HAPPENS IFYOU DON’T HAVE 48”?19
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5§602.10.6CONSIDER NEXTALTERNATIVE20
IRC §602.10.5CONTINUOUS OSB (OVER THE WHOLE HOUSE)ALLOWS REDUCTION FROM 48” PANELREQUIREMENTPANEL WIDTH IS FUNCTION OF: THE ADJACENT OPENING HEIGHTS 8’,9’,10’ STUD HEIGHTBY DEFINITION - CANNOT MIX & MATCH WITH 8PRESCRIPTIVE METHODSCORNERS TO BE OVERLAPPED21
IRC §602.10.5CONTINUOUS OSB (WHOLE HOUSE)OPENING HEIGHTSTUD HEIGHTOPENING 8’ ’-0”BWP WIDTH IS AFUNCTION OFOPENING HT TOSTUD HT9’ STUDS10’-0”6022
CANNOT MIX AND MATCH METHODS 1-8 WITH§602.10.5 CONTINUOUS OSB/PLYWOODMETHOD 8METHOD 6§602.10.5METHOD 2METHOD 1METHOD 423
§602.10.5 MUST STAND ON ITS OWNCONTINUOUSOSB/PLYWOOD24
25
26
27
BRACED WALLPANELS USINGCONTINUOUS OSBEQUIVALENT TOPERFORATEDSHEAR WALLS28
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§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6AND WHAT IF THAT IS TOOEXPENSIVE?30
§602.10.3 & 4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6CONSIDERANOTHERALTERNATIVE31
§602.10.6 ALTERNATIVE METHODREPLACES ANY METHOD 1-8, 48” PANELREQUIRES: 32” OSB PANEL MAX 10’ STUDS SPECIAL NAILING AND BLOCKING SPECIAL A.B. BOLTS & HOLD-DOWNS SPECIAL FOOTINGS & REBAR32
§602.10.6 – CAN REPLACE ANY 48” BWPMETHOD 8METHOD 6§602.10.6METHOD 2METHOD 1METHOD 433
ALTERNATIVEMETHODEQUIVALENT TOSEGMENTED SHEARWALLS34
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSAND WHAT IF THATSTILL DOESN’THELP?35
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSENGINEEREDSHEARWALLS36
ENGINEERED SHEAR WALLS MUST BE MODEL SPECIFIC NO CALCULATIONS REQUIRED MUST SPECIFY SHEAR WALL METHOD OF ANALYSIS: SEGMENTED, PERFORATED, PORTAL DRAWING DETAILS: ANCHOR BOLTS AND HOLD-DOWNS (IF REQD) SHEATHING ON THE SHEAR WALL NAILING PATTERN FRAMING MEMBERS, DETAILS FOR BOTH ENDS OFSHEAR WALL FOR 2-STORY ROOMS, ENGINEER MUST DESIGN FORBOTH NORMAL AND LATERAL LOADS37
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSTHAT’S ALSOEXPENSIVE.ENGINEERED SHEAR WALLSNO CLCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSARE THERE ANYOTHER CHOICES?38
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSENGINEERED SHEAR WALLSNO CLCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS39
ENGINEERED PRODUCTSTESTED PRODUCTS: SIMPSON STRONG WALL HARDY FRAME SHEAR WALL SIMPSON LET-IN BRACING OTHERS40
SIMPSONSTRONG WALL41
HARDY WALL42
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSBUT ISN’T THERESOMETHING SMALLERTHAN 24” – HELP!!ENGINEERED SHEAR WALLSNO CALCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS43
§602.10.3&4 METHODS -848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER ED SHEAR WALLSNO CALCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS44
TESTING AGENCY DESIGNSAMERICAN PLYWOOD ASSOCIATIONTT-073A PORTAL FRAME BRACING 16”-18”-20” (6:1)FOR ONE STORY OR ROOF 24”-27”-30” (4:1) FOR ONE STORY AND ROOF REQUIRES MASONRY OR CONCRETE FOUND. (2) SIMPSON 4200# HOLD-DOWNS INTO CONC. (1) ½” A.B. WITH 2”x2”x3/16” SQUARE WASHER HEADER BEAM OVER PANEL SPECIAL NAILING AND 1000# STRAP INTO S.PINE CAN BE MIXED WITH METHODS 1-845
TT-073A USE ANY PLACE ON HOUSEWITH ANY METHOD 1- 8REQUIRES HOLD-DOWNS A.B.46
TESTING AGENCY DESIGNSAMERICAN PLYWOOD ASSOCIATIONTT-077A PORTAL FRAME BRACING APPLIES TO GARAGES ONLY REQUIRES CONTINUOUS OSB ON THE HOUSE THEREFORE CANNOT BE MIXED WITH METHODS 1-8 16”-18”-20” (6:1) FOR 8’, 9’, 10’ STUDS (2) ½” A.B. WITH 2”x2”x3/16” SQUARE WASHERS HEADER BEAM OVER PANEL SPECIAL NAILING AND 1000# STRAP INTO S.PINE NO HOLD-DOWNS REQUIRED47
WRAPPED CORNERSCONTINUOUS OSBHEADER EXTENDED OVER JACKS(2) ANCHOR BOLTS W/ SPECIALWASHERSNO HOLD-DOWNS REQDAPA 077A FOR GARAGES W/ CONT OSB48
APA 077A FOR GARAGES W/ CONT OSB49
PORTAL FRAMECONTINUOUS OSBSIMILAR TOPERFORATEDSHEAR WALLS50
§602.10.3 & 448” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCH§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERSAPA 77AGARAGES ONLYOSB WHOLE HOUSE16”-18”-20” PANELSNO HOLD-DOWNSSPECIAL DETAILS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSTHOSE AREREALLYCUMBERSOMEHOLD-DOWNS!!!APA 73AANY PLACE ON HOUSEREPLACES ANY METHOD16”-18”-20” / 24”-27”-30”HOLD-DOWNSSPECIAL DETAILSENGINEERED SHEAR WALLSNO CALCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS51
§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCHAPA 77AGARAGES ONLYOSB WHOLE HOUSE16”-18”-20” PANELSNO HOLD-DOWNSSPECIAL DETAILS§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSAPA 73AANY PLACE ON HOUSEREPLACES ANY METHOD16”-18”-20” / 24”-27”-30”HOLD-DOWNSSPECIAL DETAILSEQUIVALENTHOLD-DOWN§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERSENGINEERED SHEAR WALLSNO CALCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS52
EQUIVALENT HOLD-DOWNTT-073 PORTAL FRAME BRACING REQUIRES 4200# HOLD-DOWN EQUIVALENT: (2) 3/4” THREADED ROD INTO CONCRETEFOOTING WITH ANY SIMPSON SUITABLEHOLD-DOWN (2) 3/4” SIMPSON “CURLY” A.B. INTO: CONC. FOOTING OR, INTO 8” SOLID GROUTED CMUPER SIMPSON REQUIREMENTS NO OTHER A.B. REQUIRED53
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§602.10.3&4 METHODS 1-848” PANELS12’ FROM CORNERS25” O.C.MIX AND MATCHAPA 77AGARAGES ONLYOSB WHOLE HOUSE16”-18”-20” PANELSNO HOLD-DOWNSSPECIAL DETAILSBWPSIMPLE AS3,4,5,6 .§602.10.6OSB ALTERNATIVE METHOD32” PANELSMIX AND MATCHHOLD-DOWNSOTHER REQUIREMENTSAPA 73AANY PLACE ON HOUSEREPLACES ANY METHOD16”-18”-20” / 24”-27”-30”HOLD-DOWNSSPECIAL DETAILSEQUIVALENTHOLD-DOWN§602.10.5CONTINUOUS OSB24”, 27”, 30” PANELSNO MIX AND MATCHNO HOLD-DOWNSOVERLAPPED CORNERSENGINEERED SHEAR WALLSNO CALCS, SITE SPECIFICSPEC ANALYSIS METHODSPEC A.B. AND HOLD-DOWNSSPEC NAILING & DETAILSSPECIALIZEDPRODUCTS55
METHODMIN BWP WIDTHALLOWEDMIX &MATCHHOLDDOWN2,3,4,5,6,7,848”YESNO602.10.5CONT 800#ENGRMFGRENGRMFGRYESENGRMFGR4200#NO -NOW/ OVERLAP CORNERS602.10.6ALTERNATEENGINEEREDSPEC PRODUCTAPA TT-073A16”-18”-20” (1 STORY)24”-27”-30” (1ST OF 2 STORY)(OR EQUIVALENT)ANYWHEREAPA TT-077AGARAGES16”-18”-20”OSB ONLY56
SPECIAL SITUATIONS1. GABLES AND DORMERS DO NOT HAVE TO BEBRACED EXCEPT HABITABLE PORTION2. BAY WINDOWS 8’ PROJECTION DO NOT HAVE TOBE BRACED IF THERE ARE OTHER BWPs TO DOTHE JOB3. RECESSES (e.g. FOYER) 8’ WIDE DO NOT NEEDTO BE BRACED4. GAS FIREPLACE PROJECTIONS CAN BE USED ASBWP (IF NECESSARY) PROVIDED THE FLOORJOISTS ARE BLOCKED AND SHEATHING IS NAILEDINTO BLOCKING5. FLORIDA ROOMS 8’ DEEP MUST BE BRACED6. FLORIDA ROOM CONVERSIONS DO NOT HAVE TOCOMPLY, BUT NEW ADDITIONS OR DETACHEDSTRUCTURES MUST COMPLY57
PLAN REVIEW GUIDELINES1. BWP METHOD(S) MUST BE WRITTEN ON THEFIRST FLOOR PLAN2. IF USING METHOD 3 (48” OSB), SHOW EXACTLYWHERE THE BWPs ARE TO BE PLACED3. IF USING METHOD 2,4,5,6,7,8:IT WILL BE ASSUMED TO BE CONTINUOUS OVERTHE WHOLE HOUSE, OTHERWISE SHOW WHERETHE BWPs ARE TO BE PLACED.4. SPECIFY THE LOCATIONS FOR ALL OTHERSPECIAL METHODS58
METHOD 602.10.5EXCEPT WHERESHOWNAPATT-077ASEE ENGR.DESIGN59
FOOTNOTES:PICTURES AND SKETCHES FROMAPA,WCA,IRC60
irc §602.10.3 prescriptive bwp methods 1. let in bracing 2. diagonal boards 3. osb or plywood 4. structural fiberboard (intermediate sheathing) 5. gyp board . hardy frame shear wall simpson let-in bracing others. 41 simpson strong wall. 42 hardy wall. 43 §602.10.6 osb alternative method 32” panels mix and match hold-downs other .
IRC Wall Bracing: A Guide Page 3 manner, offsets can affect braced wall panel location and, thus, the layout of openings for windows and doors in a series of braced wall lines on a given building side (elevation). Braced Wall Line Spacing (R602.10.1.1) – Braced wall line spacing establishes the amount of racking load that must be resisted by the two or more parallel braced wall lines in each .
All braced wall lines shall be indicated on the plan, and their spacing shall be a maximum of 60 feet in both the longitudinal and transverse directions in each story . Exterior walls parallel to braced wall lines and all interior walls used as bracing shall not be offset more than 4 feet from a braced wall line (Figure R602.10.1.1).
a parametric study of a 13.6-m-deep braced excavation was carried out by Bose and Som (1998), who found that the width of the excavation influences the soil-wall deformations and that pre-stressing the struts has a marked effect on the performance of such a braced cut. Finno et al. (2007) observed that when the ratio of
Syed Ashar Abbas Naqvi 3068680180 9-BWP-0012 Millat Model School FAS Syed Ashar Abbas Naqvi 3068680180 5 Serial No Cluster Name Program Venue School . ALLAMA IQBAL ISLAMIC SCHOOL FAS MUHAMMAD ISMAIL 3012743226 4 4 BWP-TDP-46 FAS 383 CITY PUBLIC SCHOOL NEAR SABZ MASJID KHAIRPUR TAMEWALI BAHAWALPUR KHAIRPUR TAMAINWALI
Jan 13, 2012 · compliance with the IRC Continuously Sheathed Braced Wall Panel provisions of Section R602.10.4. 5.7.1.2.4. When the IRC Continuously Sheathed Braced Wall Panel provisions of Section R602.10.4 are used, the Method CS-WSP columns are used to identify the required base bracing le
A. Freestanding Jib crane Over-braced (OB) I-beam Jib cranes Over-braced I-beam jib cranes are braced the same as profile arms, but with an I-beam underneath rather than a NIKO track profile. These are generally used when powered travel is required along the arm. B H h D A R F Free stading OB I-beam Jib Crane Arm Dimensions Freestanding pillar .
Example 7: Secant Pile Wall Braced with Rakers . Limit Equilibrium -Non-Linear -Finite Element Analysis. DEEP EXCAVATION GEOTECHNICAL SOFTWARE & ENGINEERING Live Web Presentations: training@deepexcavation.com Sales & Licensing: sales@deepexcavation.com . Analysis Settings & Design Codes-Wall Friction: 50% of the soil friction .
First aid at work – your questions answered Page 3 of 8 Health and Safety Executive The findings of your first-aid needs assessment (see Q3) will identify whether first-aiders should be trained in FAW, EFAW, or some other appropriate level of training. EFAW training enables a first-aider to give emergency first aid to someone who is injured or becomes ill while at work. FAW training includes .
