Special Reinforced Concrete Shear Walls

Stack exchange network consists of 176 q a communities including stack overflow.

Special reinforced concrete shear walls.

Special reinforced concrete structural walls are walls that have been proportioned and detailed to meet special code requirements for resisting combinations of shear moment and axial force. As typical reinforced concrete shear walls subjected to earthquake induced loads 14 15 this paper focuses on de scribing the system components key. 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. Reinforced concrete shear wall analysis and design.

The design and detailing requirements for special reinforced concrete shear walls have undergone significant changes from aci 318 11 to aci 318 14. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. In reinforced concrete buildings the vertical elements are usually either moment resisting frames or structural walls sometimes referred to as shear walls. 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.

Seismic design of special reinforced masonry shear walls. 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. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. Concrete shear wall system requiring special code acceptance can bora research assistant department of civil and environmental engineering university of wisconsin.

The requirements of this section apply to special reinforced concrete structural walls serving as part of the earthquake force resisting system. 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. Stack bond prescriptive detailing special reinforced masonry shear walls constructed of masonry laid in stack bond must now have a minimum area of horizontal reinforcement of 0 0015 times.