Special Reinforced Concrete Shear Wall Design

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

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. Nehrp seismic design technical brief no. A guide for practicing engineers the primary seismic force resisting elements in buildings are horizontal diaphragms vertical framing elements and foundations. 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.

Nist gcr 14 917 31. Graphical user interface is. It uses a graphical interface that enables the user to easily generate complex wall models. A guide for practicing engineers.

The requirements for both the design for overturning and the design for shear are explained. 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. Seismic design of special reinforced masonry shear walls. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads.

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 that result as a building sways through multiple displacement cycles during strong earthquake ground shaking. 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. 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 that result as a building sways through multiple displacement cycles during strong earthquake ground shaking. Nehrp seismic design technical brief no.

9 pdf 5mb seismic design of special reinforced masonry shear walls. A guide for practicing engineers. Design of reinforced concrete shear walls tilt up walls precast wall and insulate concrete form icf walls. Together these elements comprise the seismic force resisting system sfrs.