Author(s)

Li Changcheng, Ma Qingqing

Corresponding Author

Li Changcheng

Abstract

Combining with topography, geological conditions, engineering scale and earthquake damage experience, reasonable selection of bridge type, pier and abutment and foundation form is made. (2) In the same bridge, the combination of high piers and large span should be avoided as far as possible, and the structural form that reduces the self-weight of superstructure and is beneficial to seismic resistance should be adopted. (3) Simple in shape, light in weight, uniform in stiffness and mass distribution, low in center of gravity, easy to construct. _The connection mode is helpful to improve the integrality of the structure. The pier and abutment structure adopts relevant measures to improve its ductility and fast vibration attenuation. When necessary, seismic isolation bearings and plastic hinges are installed. _The structural system with advanced technology, reasonable economy and easy repair and reinforcement should be adopted as far as possible. (5) Further research and application of shock absorption and isolation bearings should be carried out; ductility analysis and calculation of reinforced concrete piers should be strengthened to determine the range of plastic hinge area of piers. _For special bridges with high piers and long span, special seismic design and research should be carried out.

Keywords

Viaduct, reinforcement, seismic, transformation