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14 lis 2022 · Horizontal bracing. Bracing at each floor (in horizontal planes) provides load paths for the transference of horizontal forces to the planes of vertical bracing. Horizontal bracing is needed at each floor level, however, the floor system itself may provide sufficient resistance. Roofs may also require bracing. Types of bracing
Horizontal bracing. At each floor level, bracing in a horizontal plane, generally provided by floor plate action, provides a load path to transfer the horizontal forces (mainly from the perimeter columns, due to wind) to the planes of vertical bracing.
2- Horizontal bracing system The bracing at each floor level provides load paths for the transference of horizontal forces to the planes of vertical bracing. Horizontal bracing is needed at each floor level, however, the floor system itself may provide sufficient resistance.
This volume provides: a) an overview of bracing utilized for I-girders, b) a discussion of the bracing systems for tub girders, and c) design requirements for the members and connections of bracing systems.
Selection of Structural Shapes. The most common shapes used for horizontal bracing are single angles and WT-shapes. Single angles are the most economical shape for resist-ing small and medium loads, because WT-shapes must be split from W-shapes and straightened by the fabricator.
Figure 5.1 shows bracing examples for roofs, walls and subfloors. It should be noted that the wind force on unclad frames can be substantial and should be considered in the bracing design. Horizontal wind (racking) forces on the external surfaces are transferred by horizontal or near horizontal diaphragms and bracing.
BRACING OF A TIMBER-FRAMED BUILDING is required to resist horizontal wind and earth-quake loads. The bracing demand to resist wind is expressed in bracing units (BUs) per lineal metre and bracing units per square metre for earthquakes. This compilation of articles from Build magazine looks at the bracing requirements for
