梁拱组合协作体系的地震分析

Seismic Analysis of Beam Arch Combination System

梁拱组合协作体系为连续结构和装饰拱共同组成的结构。连续结构和拱肋都各自有着自己的下部结构,但两者又通过吊杆相互联系,相互协作。现对此种结构作一模态分析,得到前六项结构周期。同时分析在地震作用下的拱肋应力、变形、基础受力及连续结构中桥墩的地震水平力,并与仅建立连续结构的单梁模型进行比较,从而对今后的梁拱组合协作体系的地震分析有一定的参考借鉴意义。

The beam arch combination system is composed of continuous structure and decorative arch. Both the continuous structure and the arch rib have own substructure, but the both are connected with each other through suspender. In this paper, the modal analysis of this structure is carried out, and the first six structural periods are obtained. At the same time, this paper analyzes the arch rib stress, deformation and foundation stress under the earthquake action, and the earthquake horizontal force of bridge pier in the continuous structure, and compares with the single-beam model of continuous structure so as to have some reference for the seismic analysis of beam arch combination system in the future.