空心钢管-混凝土组合结构管片偏心受压性能试验研究

郭亮; 马银科; 雷永生; 张振洋; 晋瑜阳; 杨勇

doi:10.3724/j.gyjzG25032605

空心钢管-混凝土组合结构管片偏心受压性能试验研究

doi: 10.3724/j.gyjzG25032605

郭亮^1,2,
马银科³,
雷永生^1,2,
张振洋³,
晋瑜阳³,
杨勇^3, ,

1. 陕西省铁道及地下交通工程重点实验室(中铁一院), 西安 710043;
2. 中铁第一勘察设计院集团有限公司, 西安 710043;
3. 西安建筑科技大学土木工程学院, 西安 710055

基金项目:

中铁第一勘察设计院集团有限公司科研开发项目（院科2022KY28ZD（LSJT）-05）。

详细信息

作者简介:
郭亮，硕士，高级工程师，414122311@qq.com。

通讯作者:
杨勇，博士，教授，yyhhp@163.com。

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出版历程
- 收稿日期: 2025-03-26

Experimental Research on Eccentric Compression Performance of Hollow Steel Pipe-Concrete Composite Segments

1. Shaanxi Railway and Underground Traffic Engineering Key Laboratory (FSDI), Xi'an 710043, China;
2. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, China;
3. Xi'an University of Architecture & Technology, Xi'an 710055, China

摘要

摘要: 钢筋混凝土结构管片是隧道和地铁车站重要支护构件，其受力性能决定了隧道和地铁车站的工程质量，目前传统钢筋混凝土管片设计时尺寸较大、混凝土用量大且运输不便，为此将空心钢管设置在传统钢筋混凝土管片中，创新地提出空心钢管混凝土组合结构管片形式。对3个足尺管片试件进行偏心受压性能试验研究，深入分析组合结构管片在偏压荷载作用下的破坏形态、失效机理、承载性能及裂缝发展情况。在此基础上，推导和建立了偏压荷载下组合结构管片的承载能力计算方法。结果表明：组合结构管片中空心钢管和混凝土的黏结性能良好，二者能协同工作，组合结构管片具有良好的承载能力和刚度，试件ZHGP-2在屈服和峰值时对应的侧向挠度最小，侧向挠度相较于试件ZHGP-1、ZHGP-3减小36%、24%；试件ZHGP-2在屈服和峰值时对应的荷载达到最大，峰值荷载相较于试件ZHGP-1、ZHGP-3增大6%、15%，说明预应力试件ZHGP-2可显著提高其抗开裂能力、承载能力及刚度。最后，建立了适用于组合结构管片的正截面偏心受压极限承载力公式，试验值与理论计算值吻合较好，在地铁车站管片应用中具有显著性能优势和广泛应用前景。
- 组合结构 /
- 空心钢管混凝土管片 /
- 偏心受压性能 /
- 试验研究 /
- 承载力计算
Abstract: The reinforced concrete segment is an important supporting component in tunnels and subway stations， and its mechanical properties determine the engineering quality of these structures. Currently， traditional reinforced concrete segments are designed with large dimensions， requiring substantial amounts of concrete and posing transportation challenges. To address these issues， this paper proposes embedding hollow steel pipes within traditional reinforced concrete segments， innovatively introducing a composite structural segment combining hollow steel pipes and concrete. This study conducted eccentric compression performance tests on three full-scale segment specimens and thoroughly analyzed their failure modes， failure mechanisms， bearing capacity， and crack development under eccentric loading. Based on experimental research， a calculation method for the bearing capacity of composite structural segments under eccentric loading was derived and established. The research results showed that the bonding performance between hollow steel pipes and concrete in composite structural segments was good， and the two materials could work together effectively. The composite structural segments exhibited good bearing capacity and stiffness. The lateral deflection of specimen ZHGP-2 was the smallest at both yield and peak stages， showing a 36% reduction compared to specimen ZHGP-1 and a 24% reduction compared to specimen ZHGP-3； the load of specimen ZHGP-2 reached its maximum at both yield and peak stages， with the peak load increasing by 6% compared to ZHGP-1 and by 15% compared to ZHGP-3. This indicated that the prestressed specimen ZHGP-2 significantly improved its crack resistance， bearing capacity， and stiffness. Finally， a formula for calculating the ultimate bearing capacity of eccentrically compressed sections in composite structural segments was established. The experimental results agreed well with theoretical calculations， demonstrating significant performance advantages and broad application prospects in subway station segment design.
- composite structure /
- hollow CFST segment /
- eccentric compression performance /
- experimental research /
- calculation of bearing capacity

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