离心钢管混凝土管桩抗震性能的拟静力试验

江锋; 陆涛; 毛永平; 寇钊; 秦慧慧; 周安

doi:10.3724/j.gyjzG22120807

离心钢管混凝土管桩抗震性能的拟静力试验

doi: 10.3724/j.gyjzG22120807

江锋¹,
陆涛²,
毛永平³,
寇钊¹,
秦慧慧¹,
周安^1, ,

1. 合肥工业大学土木与水利工程学院, 合肥 230009;
2. 安徽绿城玫瑰园房地产开发有限公司, 合肥 230000;
3. 建华建材科技(广东)有限公司, 广东中山 528415

详细信息

作者简介:
江锋,硕士研究生,主要从事结构力学性能与抗震性能研究工作。

通讯作者:
周安,博士,教授,主要从事工程结构抗震及鉴定加固研究,1988800056@hfut.edu.cn。

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- 被引次数: 2
出版历程
- 收稿日期: 2022-12-08
- 网络出版日期: 2025-04-02

Quasi-Static Tests on Seismic Performance of Centrifugal Concrete-Filled Steel Tube Piles

1. School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;
2. Anhui Green City Rose Garden Real Estate Development Co., Ltd., Hefei 230000, China;
3. Jianhua Building Materials Technology (Guangdong) Co., Ltd., Zhongshan 528415, China

摘要

摘要: 为研究离心钢管混凝土管桩(SC管桩)的抗震性能,并考虑填芯以及施加预应力的影响,对3根SC管桩和2根预应力高强混凝土管桩(PHC管桩)进行拟静力试验。研究表明:SC管桩的抗震承载力、屈服位移、极限位移、延性系数分别为PHC管桩的2.85、1.97、2.47、1.47倍,耗能系数约为PHC管桩的4.5倍,总耗能是其32倍,同等位移条件下SC管桩的割线刚度约为PHC管桩的2~3倍,承载力陡降时SC管桩对应的位移约为PHC管桩的2.4倍;施加预应力后的SC管桩,其抗震承载力较SC管桩提高了约15%;填芯对SC管桩抗震性能的影响可以忽略不计。
- SC管桩 /
- PHC管桩 /
- 抗震性能 /
- 拟静力试验 /
- 延性
Abstract: In order to study the seismic performance of centrifugal concrete-filled steel tubular piles (SC tube piles) and consider the influence of core filling and prestress, the quasi-static tests were carried out on 3 SC tubular piles and 2 prestressed high-strength concrete tubular piles (PHC tube piles). The results showed that the seismic bearing capacity, yield displacement, ultimate displacement and ductility coefficient of SC tubular piles were 2.85 times, 1.97 times, 2.47 times and 1.47 times of PHC tubular piles, respectively, the energy consumption coefficient was about 4.5 times of PHC tubular piles, and the total energy consumption was 32 times of PHC tubular piles, the cut line stiffness of SC tubular piles in the same displacement conditions was about 2-3 times that of PHC tubular piles, and the displacement of SC tubular piles when the bearing capacity dropped steeply was about 2.4 times that of PHC tubular piles; the seismic bearing capacity of prestressed SC tubular piles was about 15% higher than that of SC tubular piles; the effect of concrete filling on the seismic performance of SC tubular piles was negligible.
- SC tube pile /
- PHC tube pile /
- seismic performance /
- quasi-static test /
- ductility

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