可更换耗能波纹钢板拼装桥墩抗震性能试验

doi:10.13229/j.cnki.jdxbgxb.20241011

Abstract

Abstract:

Based on the concept of energy intensive and replaceable design， a segmental assembled pier with external replaceable corrugated steel plate and embedded steel pipe tenon and mortise is proposed. To verify the replaceability of prefabricated bridge piers， specimens with corrugated steel plates and perforated corrugated steel plates were designed and manufactured， respectively. The quasi-static cyclic loading test was carried out on one specimen. The fatigue loading test was conducted on the other one. After the test， the damaged corrugated steel plate was replaced by a new one， and then a quasi-static reciprocating loading test was conducted again. The seismic performance and replaceability of the pier were evaluated by comparison of the damage process， energy dissipation capacity， bearing capacity. The results show that external perforated corrugated steel plates have a better matching design bearing capacity with embedded parts compared with external corrugated steel plates. Although the strength and stiffness of the steel plate were reduced， the energy consumption capacity is better. Since the energy consumption of the bottom pier is mainly concentrated on the external corrugated steel plate， there is no crushing failure and damage of the bottom concrete section before and after the test. The external corrugated steel plate can achieve replaceable performance under the design target drift ratio.

Key words: precast assembled pier, corrugated steel plate, pseudo-static testing, replaceability, hysteretic behavior

CLC Number:

U443.22

Shuang-shuang JIN,Shi-yu ZHOU,Xiao WAN,Jian-ting ZHOU. Experiment on seismic performance of assembled piers with energy dissipation of replaceable corrugated steel plates[J].Journal of Jilin University(Engineering and Technology Edition), 2026, 56(3): 746-757.

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试件	编号	竖向焊接开孔连接板厚度/mm		开孔L形连接件厚度/mm		钢管榫卯尺寸/mm		加载制度
试件	编号	承台	上部节段	承台	上部节段	长度	厚度	加载制度
1	-	10	5	15	15	100	2.5	滞回加载
2	1	10	5	18	18	100	2.5	疲劳加载
2	2	10	5	18	18	100	2.5	滞回加载

钢材	等级	直径或厚度/mm	屈服强度/MPa	极限强度/MPa
纵筋	HRB400	16	429	579
箍筋	HPB300	8	563	630
钢板	Q235	3.5	296.6	422.5

Experiment on seismic performance of assembled piers with energy dissipation of replaceable corrugated steel plates

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