高烈度区预制拼装桥墩振动台试验对比分析

Comparative Analysis on Vibrating Table Test of Prefabricated Assembled Piers in High-intensity Zones

摘要:

为研究预制拼装桥墩在高烈度区的适应性，对呼和浩特市某工程的结构试件进行振动台试验，对比现浇桥墩和预制桥墩、套筒预埋在承台和套筒预埋在墩柱两种预制桥墩的试验结果，研究预制拼装桥墩抗震性能的表现，试验过程中套筒预埋在承台内的预制桥墩表现出来的抗震性能与现浇桥墩具有高度一致性，为后续预制拼装桥墩在高烈度区的推广应用提供了支撑。

Abstract:

To study the adaptability of prefabricated assembled bridge piers in high-intensity zones, the vibrating table tests are conducted on the structural specimens of a project in Hohhot. The test results of cast-in-place bridge piers and prefabricated bridge piers, as well as two types of prefabricated bridge piers with sleeves pre-embedded in the base slab and in the pier column are compared. The seismic performances of prefabricated assembled bridge piers are studied. During the test, the precast piers with sleeves pre-embedded in the base slab shows a high degree of consistency in seismic performances with the cast-in-place piers, providing the support for the subsequent promotion and application of precast assembled piers in high-intensity zones.