咬合管幕结构的抗弯性能及影响参数分析

doi:10.12068/j.issn.1005-3026.2023.02.018

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (2): 289-298.DOI: 10.12068/j.issn.1005-3026.2023.02.018

咬合管幕结构的抗弯性能及影响参数分析

唐秀洁¹，赵文¹，路博¹，李伟伟²

(1. 东北大学资源与土木工程学院，辽宁沈阳110819； 2. 广州地铁设计研究院股份有限公司，广东广州510010)

修回日期:2021-12-04 接受日期:2021-12-04 发布日期:2023-02-27
通讯作者: 唐秀洁
作者简介:唐秀洁(1994 -)，女，山东日照人，东北大学博士研究生；赵文(1962 -)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51878127).

Flexural Behavior and Influencing Parameters of Secant-Pipe-Roof Structure

TANG Xiu-jie¹， ZHAO Wen¹， LU Bo¹， LI Wei-wei²

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Guangzhou Metro Design & Research Institute Co.， Ltd.， Guangzhou 510010， China.

Revised:2021-12-04 Accepted:2021-12-04 Published:2023-02-27
Contact: ZHAO Wen
About author:-
Supported by:
-

摘要/Abstract

摘要： 依托咬合管幕结构的抗弯性能试验，利用ABAQUS有限元软件建立了咬合管幕结构模型，在对模型的准确性进行验证的基础上，对咬合管幕结构在集中荷载作用下的抗弯性能进行分析. 选取咬合距离、钢管直径、钢管壁厚及钢筋直径进行研究，得到不同参数组合下结构的抗弯承载力水平.结果表明:加载过程中，钢管与核心混凝土中存在明显的应力重分布，咬合管幕结构具有良好的抗弯性能，钢管直径是影响咬合管幕结构抗弯性能的主要因素，当钢管直径增加45.7%时，结构抗弯承载力最大可提高294.3%.

关键词: 咬合管幕结构；有限元模型；抗弯性能；应力重分布；参数分析

Abstract: Based on the flexural behavior test of the secant-pipe-roof structure(SPRS)， the ABAQUS finite element software was used to establish the SPRS model. After verifying the model’s accuracy， the SPRS′s flexural behavior under loading was studied. The parameters of secant distance， steel tube diameter， steel tube thickness and steel bar diameter were selected for parameter analysis， and the flexural capacities of the structure under different parameter combinations were obtained. The results show that during the loading process， there is a significant redistribution of stress in the steel tube and the core concrete， and the SPRS has good anti-flexural behavior. The steel tube diameter is the most important factor affecting the flexural behavior of the SPRF. When the steel tube diameter is increased by 45.7%， the maximum flexural capacity of the structure can be increased by 294.3 %.

Key words: secant pipe roofing structure; finite element model; flexural behavior; stress redistribution; parameter analysis

中图分类号:

TU93

唐秀洁，赵文，路博，李伟伟. 咬合管幕结构的抗弯性能及影响参数分析[J]. 东北大学学报（自然科学版）, 2023, 44(2): 289-298.

TANG Xiu-jie， ZHAO Wen， LU Bo， LI Wei-wei. Flexural Behavior and Influencing Parameters of Secant-Pipe-Roof Structure[J]. Journal of Northeastern University(Natural Science), 2023, 44(2): 289-298.

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咬合管幕结构的抗弯性能及影响参数分析

Flexural Behavior and Influencing Parameters of Secant-Pipe-Roof Structure

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