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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

40卷

期数:

2023年05期

页码:

99-107

栏目:

建筑结构

出版日期:

2023-09-15

文章信息/Info

Title:

Numerical simulation of axial compression and hysteretic behavior of corrugated pipe through-hole column

文章编号:

1673-2049(2023)05-0099-09

作者:

杨 博¹,张亚飞¹,卢 旦²,杨英武³,梁诗雪¹

(1. 浙江理工大学 建筑工程学院,浙江 杭州 310018; 2. 华东建筑设计研究院有限公司,上海 200041; 3. 浙江农林大学 风景园林与建筑学院,浙江 杭州 311300)

Author(s):

YANG Bo¹, ZHANG Yafei¹, LU Dan², YANG Yingwu³, LIANG Shixue¹

(1. School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, Zhejiang, China; 2. East China Architectural Design & Research Institute Co., Ltd., Shanghai 200041, China; 3. College of Landscape Architecture, Zhejiang A&F University, Hangzhou 311300, Zhejiang, China)

关键词:

波纹管通孔柱;  轴压性能;  滞回性能;  数值分析

Keywords:

corrugated pipe through-hole column;  axial compressive behavior;  hysteretic behavior;  numerical analysis

分类号:

TU375

DOI:

10.19815/j.jace.2021.11120

文献标志码:

A

摘要:

为了降低装配式混凝土柱之间装配的施工难度并节约施工成本,提出了一种波纹管通孔钢筋直接连接技术。利用有限元计算软件ABAQUS模拟分析了波纹管通孔柱在单调加载和静力推覆加载工况下的力学性能,研究了波纹管通孔穿插纵筋连接技术对装配柱受压承载能力和滞回性能的影响。结果表明:与现浇混凝土柱相比,波纹管通孔柱的轴压承载力提高了约13%; 当轴压比取0.2和0.6时,波纹管通孔柱的延性系数分别提高了31%和28%,累积滞回耗能分别提高了3%和9%; 随着轴压比增大,波纹管通孔柱的延性出现降低,累积滞回耗能增大,且延性和累积滞回耗能都高于现浇混凝土柱; 从装配柱混凝土的应力云图、损伤曲线、滞后曲线、骨架曲线、刚度退化曲线等指标分析可以发现,波纹管对核心混凝土和柱纵筋具有较大约束作用,可以延迟构件的塑性变形; 提出的波纹管穿插纵筋连接技术可以实现预制混凝土柱之间的有效连接,且该连接方式装配柱的抗震性能要优于现浇混凝土柱。

Abstract:

In order to reduce the construction difficulty of assembling between the prefabricated concrete columns and save the construction cost, the direct connection technology of the corrugated pipe through-hole steel bars was proposed. The mechanical properties of the corrugated pipe through-hole column were analyzed by ABAQUS under monotonic loading and static thrust loading conditions, and the effect of corrugated pipe through-hole interpenetrating longitudinal reinforcement on load bearing capacity and hysteretic behavior of assembly column was studied. The results show that compared with the cast-in-situ concrete column, the axial compression capacity of corrugated pipe through-hole columns increases by about 13%. When the axial compression ratio is 0.2 and 0.6, the ductility coefficient of the assembly corrugated pipe through-hole columns increase 31% and 28%, the cumulative hysteresis energy consumption values increase by 3% and 9%,respectively. With the increase of axial compression ratio, ductility of corrugated pipe through-hole column decreases and cumulative hysteretic energy consumption increases, and both ductility and cumulative hysteretic energy consumption are higher than those of cast-in-place concrete column. From the analysis of indicators such as the stress cloud diagram, damage curve, hysteresis curve, skeleton curve and stiffness degradation curve of the precast column concrete, corrugated pipe has a greater restraint effect on the core concrete and the longitudinally reinforcement of the column, and the plastic deformation of the component is delayed. The bellows inserted longitudinal reinforcement connection technology can realize the effective connection between precast concrete columns, and the seismic performance of the assembly column is better than that of the cast-in-place concrete column.

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备注/Memo

备注/Memo:

收稿日期:2021-11-30
基金项目:国家自然科学基金项目(51808499); 浙江省基础公益研究计划项目(LGG20E080002)
作者简介:杨 博(1979-),男,工学博士,教授,硕士生导师,E-mail:youngbo@zstu.edu.cn。
通信作者:卢 旦(1978-),男,工学博士,教授级高级工程师,E-mail:474558052@qq.com。

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更新日期/Last Update: 2023-09-01