Special Reinforced Concrete Shear Wall Design Example

Provisions chapter 4 presents design coefficients and system limitations for various seismic design categories.

Special reinforced concrete shear wall design example.

Live load at each floor and roof. 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. Shear wall section and assumed reinforcement is investigated after analysis to verify suitability for the applied loads. A reinforced concrete load bearing shear wall supporting for a four story building.

Seismic design of cast in place concrete special structural walls and coupling beams. Special r c shear walls. Precast walls can be. 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. Strength reduced from 136 7 to 114 9 in kips. 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. A guide for practicing engineers the basic structural elements of an earthquake resistant building are diaphragms vertical framing elements and the foundation.

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. P l 25 kips. Aci 318 05 design data.

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. 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. Design of reinforced concrete load bearing shear wall. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

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. P d 40 kips. In reinforced concrete buildings the vertical elements are usually either moment resisting frames or. The design process is illustrated with examples.

Ordinary special precast shear walls. Service load dead load at each floor and roof. The requirements of this section apply to special reinforced concrete structural walls serving as part of the earthquake force resisting system. 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.