METHOD OF BRIDGE EARTHQUAKE-PROOF AND DESIGN

摘要

Coefficient invention required formalized and is consistent with the seismic design rules of a simple, easily interpreted, and can sogyoryang bridge seismic analysis in the design and the design method that, equivalent static seismic load calculation according to ( , , ) Value, and the bridge period (T), the elastic seismic response factor ( ) Displacement of the element in the positive node value, rotation angle, the new displacement curve obtained by using the shear force and bending moment value (displacement curve), a more precise equivalent static seismic loads using ( ) Can be calculated values.; Bridge seismic analysis and design method of the present invention to do this uniformly distributed load along the length of the bridge ( ) And the application, the first step of determining a modified shape through a static function {Vs (x)}; Equivalent static seismic coefficient needed in load calculation for the bridge ( , , ) A second step of estimating; A third step of estimating the fundamental basis that can assume the contour vibration; Seismic coefficient by the acceleration spectrum ( ) And the inertial load { A fourth step of determining}; The inertia load {