BCSI B3 PDF

BCSI B3 PDF

The BCSI B-Series Summary Sheets summarize each of the chapters of the BCSI book. B3 – Permanent Restraint/Bracing of Chords & Web Members. Refer to the BCSI-B3 Summary Sheet – Permanent Restraint/Bracing of Chords & Web Members for more information. All other permanent bracing design is the. To view any of the BCSI documents click on the links below. BCSI-B1 Summary Sheet. Handling, Installing, & Bracing BCSI-B3 Summary Sheet. Web member .

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The procedure selected is not as important as following the simple guidelines for locating the Ground Braces. Installation of Trusses can be dangerous, particularly Long Span Trusses i.

This section on Method of Restraint is based on the provisions for wood Trusses as provided in Section Before the first Truss is erected, every individual involved shall understand the plan for hoisting and Truss setting and the intended temporary restraint and Bracing requirements for a safe, efficient and accident-free jobsite. Thereafter, install Diagonal Bracing to each subsequent set of four Trusses. Truss restraint and bracing not shown for clarity.

Use the following checklist when handling and erecting Trusses: Back Cover Considerations Before Starting Certain individuals have been especially dedicated to making BCSI possible: Check Trusses for dimensions and damage as soon as they arrive on the site to avoid possible installation delays.

BCSI – Guide to Good Practice for Handling, Installing, Restraining

Person having a legal or equitable interest in the property upon which a Building is to be constructed, and: Trusses hold their profiles best when they have been properly plumbed, restrained and braced with Structural Sheathing. Install the first Truss near the middle of the Building and brace similar to Exterior Ground Bracing shown below. Stack 3b assume short-term duration of Load. Limit stack heights to those provided b33 Table B and stacking periods to approximately one week, unless alternative information is provided by the Building Designer, Truss Designer or Truss Manufacturer.

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If Structural Sheathing is not installed, the Top Chords of the supporting Trusses shall be braced by the Valley Set frames, or with rows of Lateral Restraint, spaced no more than the maximum o. Consult the Building Designer. Hoisting Trusses Check Truss bundle banding prior to moving bundles. The act of forming rigid triangles with objects adequately fastened together see Figure B, page Reinforcement member plated to the narrow face of a Web in the Truss plant to avoid the need for field-installed reinforcement or Lateral Restraint and Bracing.

Position the Diagonal Brace s to cross the Webs in close proximity to each row of Lateral Restraint to minimize the out-of-plane bending forces in the Web. Piggyback Trusses are used when shipping or manufacturing restrictions limit the overall Truss height. This includes wood Truss construction.

BCSI – Guide to Good Practice for Handling, Installing, Restraining

See Figures B and B, respectively. Building Designer CHECKLIST q Allowable vertical, horizontal or other required deflection criteria q Any dead Load, Live Load and in-service bcdi deflection criteria for flat roofs subject to ponding loads q Any Truss camber requirements q Any differential deflection criteria from Truss-to-Truss or Truss to g3 structural member q Any deflection and vibration criteria for floor Trusses in- cluding: The greater the penetration, the greater the resistance.

Toe-nailing used in this type of application is typically required to resist uplift and lateral forces. WARNING The erection of Trusses is inherently dangerous and requires, above all, careful planning and communication between the Contractor, crane operator and installation crew.

Lift and set in place. Series of Trusses of the same span and Overhang that decrease in height to 3b the end slope of a hip roof system.

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Truss position or alignment within a structure relative to bearing walls. A solid member placed between structural members, usually at the bearings, to provide lateral support. Lateral restraint and diagonal bracing used to brace the bottom chord plane. Use washers ware or bb3 members to be attached to the Girder Truss.

SBCA Catalog: B3 Summary – 11″x17″ Permanent Restraint/Bracing of Chords & Web Members

Special end wall bracing design considerations are required by Construction loads are those loads imposed on the unfinished the building designer if the gable end frame profile does not match the adjacent trusses. Fasteners that join two or more members together, including: Then, it is possible to drive multiple stakes along the length of this horizontal Tie Member as needed to develop the required lateral resistance by the earth.

They also can be used as PBSB. Closer spacing may be required by the Building Designer.

bcssi Never stack materials on the cantilever or overhang of a Truss. T he ground stake should be driven to a capacity which will resist one and one half times the cumulative lateral bracing force P as determined from DSB Install one of these types of components on both ends of the Truss System and repeat every 15 Truss spaces 30′ maximumsee Figure B See hoisting recommendations for Truss bundles page 6 bsci single Trusses page 8.

Bottom Chord Plane 3. During construction, Trusses must not support any loads from equipment or construction materials until the Truss assembly is properly restrained and braced.