三角撑
The results show that the tie member of the side arch is the weak part of the continuous rigid-frame arch bridge under action of seismic excitation and the triangle frame stiffness has considerable influences on the seismic response of both the main and side arches.
结果表明边拱系杆是连续刚架拱桥在地震激励作用下的薄弱环节,三角刚架刚度对主、边拱地震响应有较大影响。
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