Special Reinforced Concrete Shear Walls

In asce 7 10 table 12 2 1 two types of shear walls can be used ordinary reinforced concrete shear walls and special reinforced concrete shear walls what is it the difference between these walls.

Special reinforced concrete shear walls.

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. As typical reinforced concrete shear walls subjected to earthquake induced loads 14 15 this paper focuses on de scribing the system components key. The requirements of this section apply to special reinforced concrete structural walls serving as part of the earthquake force resisting system. 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.

Shear wall systems that are not exempted from checks for story drift include prestressed masonry shear walls and special reinforced masonry shear walls. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. 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. Concrete shear wall system requiring special code acceptance can bora research assistant department of civil and environmental engineering university of wisconsin.

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 design and detailing requirements for special reinforced concrete shear walls have undergone significant changes from aci 318 11 to aci 318 14. 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. Seismic design of special reinforced masonry shear walls.

Stack exchange network consists of 176 q a communities including stack overflow. 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. Reinforced concrete shear wall analysis and design.