Maximum Length Of Concrete Shear Wall

Shear due to loads v u design shear capacity ϕv n where ϕ 0 75 design shear capacity ϕv n design shear strength of concrete ϕv c design shear strength of reinforcement ϕv s ϕv n ϕv c ϕv s therefore v u ϕv c ϕv s shear force that concrete can resist without web reinforcement v c.

Maximum length of concrete shear wall.

If you leave this entry blank it will be filled in for you by the program. Maximum spacing of vertical and horizontal reinforcement is min 1 3 length of. Diaphragm aspect ratio is ok. Shear walls with multiple openings and no headers.

Wood structural panel unblocked 3 1. Reinforced shear wall 7 3 2 6. Wood frame shear wall and diaphragm design ricky mclain ms pe se. These forces are acting in the plane of the wall by the cantilever action where the bending deformation governs if slender walls are concern and a truss action for short walls where the.

On centers in each face as horizontal 4 16 in 1. Maximum length is the overall wall length offset. The program considers the effective shear length of the wall to be 0 8 wall length. Per sdpws section 4 3 5 2 2008 requirement many examples ignore gravity loads example ftao shear walls.

This module allows the design of concrete shear walls including multi story walls with no openings but with up to five levels of differing length height and thickness. Maximum shear wall dimension ratios. Shear wall is a vertical structural element used to resist the lateral forces that are usually due to the wind and seismic loads. Reinforced wall with prescriptive reinforcement of detailed plain shear wall.

4 bars at 16in. A length to height ratio of 1. 1 which corresponds to 1 x 20 ft 30 ft 9 14 m or control joints spaced every 25 ft 7 62 m. In this example the maximum spacing of 25 ft 7 62 m governs over the length to height ratio.

Spacing of vertical reinforcement reduced to 48 inches. Wall length 18 ft. Reinforced shear wall 7 3 2 5. 5 bars at 18in.

Type maximum length width ratio for an 84 x 34 diaphragm the aspect ratio is 2 5 3. Design for shear max. Length of wall per sdpws section 4 3 5 2 anchor bolts or nails typical boundary member typical boundary member 2 min. Enter the length to be used in the analysis of the particular wall section.