Special Reinforced Concrete Shear Wall Design

Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads.

Special reinforced concrete shear wall design.

A guide for practicing engineers the basic structural elements of an earthquake resistant building are diaphragms vertical framing elements and the foundation. Strength reduced from 136 7 to 114 9 in kips. 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. In reinforced concrete buildings the vertical elements are usually either moment resisting frames or.

Reinforced concrete shear wall analysis and design. The prescriptive seismic detailing requirements for each of three reinforced masonry shear walls types ordinary intermediate and special are explained with particular attention to special reinforced shear walls. The design process is illustrated with examples. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. Seismic design of cast in place concrete special structural walls and coupling beams. 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.

Each of these checks is intended to increase flexural ductility while decreasing the potential for brittle shear. A guide for practicing engineers nist gcr 14 917 31 prepared by the applied technology council for the national institute of standards and technology gaithersburg md. 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. 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.

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. 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.