Special Reinforced Concrete Shear Wall Design

Reinforced concrete shear wall analysis and design a structural reinforced concrete shear wall in a 5 story building provides lateral and gravity load resistance for the applied load as shown in the figure below.

Special reinforced concrete shear wall design.

The requirements of this section apply to special reinforced concrete structural walls serving as part of the earthquake force resisting system. The design and detailing requirements for special reinforced concrete shear walls have undergone significant changes from aci 318 11 to aci 318 14. The changes are a result of the unsatisfactory performance of many shear walls in the chile earthquake of 2010 and the christchurch new zealand earthquake of 2011. Reinforced concrete shear wall analysis and design.

Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. Similarly when designing special reinforced masonry shear walls by the allowable stress design method the shear and diagonal tension stresses resulting from in plane seismic forces are required to be increased by a factor of 1 5. Both the design for overturning and the design for shear are explained. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

Strength reduced from 136 7 to 114 9 in kips. Seismic design of cast in place concrete special structural walls and coupling beams. A structural reinforced concrete shear wall in a 5 story building provides lateral and gravity load resistance for the applied load as shown in the figure below. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads.

A guide for practicing engineers the basic structural elements of an earthquake resistant building are diaphragms vertical framing elements and the foundation. Each of these checks is intended to increase flexural ductility while decreasing the potential for brittle shear. The design process is illustrated with examples. Based on aci 18 10 4 1 nominal shear strength v n of structural walls is not to exceed vn acv c f c t fy where c is a coefficient defining the relative contribution of concrete.

In reinforced concrete buildings the vertical elements are usually either moment resisting frames or. 2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16.