254 results about "Response spectrum" patented technology

The invention provides an engineering structure seismic design method based on displacement. The engineering structure seismic design method based on the displacement includes: determining a design code response spectrum according to initial conditions, and building an elastic displacement response spectrum; determining an initial target displacement shape of an engineering structure; enabling an elastic-plastic multi-degree of freedom system to be simplified into an elastic multi-degree of freedom system; performing modal analysis on the elastic multi-degree of freedom system to obtain a target displacement shape of the engineering structure; enabling the elastic multi-degree of freedom system to be simplified into an equivalent single-degree of freedom system; performing seismic design based on the elastic displacement response spectrum; enabling seismic design force to be assigned to the multi-degree of freedom system according to the principle that the seismic design force is in proportion with elastic stiffness, and performing cross section checking calculation and reinforcement design; and solving novel target displacement, comparing size of target displacement values, and guaranteeing convergence of the target displacement. The engineering structure seismic design method based on the displacement enables displacement response of the engineering structure under seismic effect to be close to designed target displacement, thereby achieving effective control of deformation of the engineering structure under the seismic effect and guaranteeing that the engineering structure has enough displacement capacity.