装配式Z形钢结构梁柱连接节点力学性能研究

张泽宇; 曾立静; 王月栋; 侯兆新; 刘学春; 张爱林; 李伟男

doi:10.3724/j.gyjzG24022007

装配式Z形钢结构梁柱连接节点力学性能研究

doi: 10.3724/j.gyjzG24022007

张泽宇^1,3,
曾立静^1,3, ,,
王月栋^1,3,
侯兆新^1,3,
刘学春²,
张爱林²,
李伟男⁴

1. 中冶建筑研究总院有限公司, 北京 100088;
2. 北京工业大学, 北京市高层和大跨度预应力钢结构工程技术研究中心, 北京 100124;
3. 国家钢结构工程技术研究中心, 北京 100088;
4. 中国京冶工程技术有限公司钢结构公司, 北京 100088

基金项目:

住房和城乡建设部科学技术计划项目(2022-K-145)。

济宁市重点研发计划"全球揭榜"项目(2022JBZP004)

详细信息

作者简介:
张泽宇,博士,高级工程师,主要从事装配式钢结构相关工作。

通讯作者:
曾立静,zengljcn@163.com。

计量
- 文章访问数: 8
- HTML全文浏览量: 1
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2024-02-20
- 网络出版日期: 2024-09-19

Research on Mechanical Properties of Prefabricated Z-Shaped Steel Beam-to-Column Connections

1. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structures, Beijing University of Technology, Beijing 100124, China;
3. National Steel Structure Engineering Technology Research Center, Beijing 100088, China;
4. Steel Structure Branch, China Jingye Engineering Technology Co., Ltd., Beijing 100088, China

摘要

摘要: 对装配式Z形钢结构梁柱连接节点进行了单调和往复循环加载试验及有限元分析,以研究其力学性能。对不同连接强度设计下的Z形节点,分别进行了转动刚度、破坏模式、承载能力、滞回性能、耗能能力和刚度退化等研究。结果表明:装配式Z形钢结构梁柱连接节点具有良好的延性且能够做到塑性铰外移。节点连接强度可显著影响其滞回性能和塑性抗弯能力;较低的强度设计系数(0.2~0.9)使节点破坏模式为螺栓率先发生破坏,其滑移失效承载力和极限承载力与强度设计系数基本呈线性正相关,且节点转动性能表现为半刚性;节点强度设计系数较高时(0.9~1.3),其滑移失效承载力和极限承载力基本保持不变,节点破坏模式转变为构件率先发生破坏,节点抗弯性能表现为刚性连接。此外,该节点构造形式下所需螺栓数量少,安装高效且经济性强,具有一定的工程应用价值。
- 装配式钢结构 /
- Z形梁柱节点 /
- 试验研究 /
- 力学性能 /
- 转动刚度
Abstract: The experiments under monotonic and cyclic loading conditions and simulation were conducted to investigate the mechanical properties of prefabricated Z-shaped steel beam-to-column connections. The rotational stiffness, failure mode, bearing capacity, hysteretic performance, energy dissipation, and stiffness degradation of Z-shaped connections with different designed strengths were studied respectively. The results showed that the prefabricated Z-shaped steel beam-to-column connections showed good ductility and could achieve plastic hinge movement outside the panel zone. The designed strength showed a significant effect on the hysteretic performance and plastic bending resistance of Z-shaped connections. The small value of designed strength parameter (0.2-0.9) made that the failure mode of Z-shaped connections was premature damage of bolts. The anti-slip and ultimate bearing capacity of Z-shaped connections increased linearly with the increase of designed strength, and the rotational performance of Z-shaped connections was semi-rigid. In case of the large value of designed strength parameter (0.9-1.3), anti-slip and ultimate bearing capacity of Z-shaped connections were almost unchanged. The failure mode was changed to premature damage of connected members, and the rotational performance of Z-shaped connections was rigid. In addition, the number of bolts required by the proposed Z-shaped connections was relatively small, and the installation was efficient and economical, which could contribute to engineering application.
- prefabricated steel structure /
- Z-shaped beam-to-column connection /
- experimental research /
- mechanical property /
- rotational stiffness

HTML全文

参考文献(16)

[1]	MAHIN S A, MALLEY J O, HAMBURGER R O, et al. Overview of the US program for reduction of earthquake hazards in steel moment-frame structures [J]. Earthquake Spectra, 2003, 19(2): 237-254.
[2]	ZENG L J, ZHANG W Y, LI H W. Low-cycle fatigue life prediction of I-shaped steel brace components and braced frames[J]. Thin-Walled Structures, 2021, 163, 107711.
[3]	CALLISTER J T, PEKELNICKY R G. Seismic evaluation of an existing low ductility braced frame building in California [C]//Structures Congress, 2011. 2011: 2756-2767.
[4]	CLIFTON C, BRUNEAU M, MACRAE G, et al. Steel structures damage from the Christchurch earthquake series of 2010 and 2011[J]. Bulletin of the New Zealand Society for Earthquake Engineering, 2011, 44(4): 297-318.
[5]	张爱林.工业化装配式高层钢结构体系创新、标准规范编制及产业化关键问题[J].工业建筑,2014,44(8):1-6 ,38.
[6]	李启才,苏明周,顾强,等.带悬臂梁段拼接的梁柱连接循环荷载试验研究[J].建筑结构学报,2003(4):54-59.
[7]	MONTUORI R, NASTRI E, PILUSO V. Theory of plastic mechanism control: A new approach for the optimization of seismic resistant steel frames[J]. Earthquake Engineering & Structural Dynamics, 2022, 51(15): 3598-3619.
[8]	叶继红,许玲玲.基于MDEM的非线性半刚性空间钢框架的弹塑性动力分析[J/OL].工程力学,1-13 [2023-09-15 ].https://kns.cnki.net/kcms/detail/11.2595.o3.20230410.1011.006.html.
[9]	NGUYEN P C, KIM S E. An advanced analysis method for three-dimensional steel frames with semi-rigid connections[J]. Finite Elements in Analysis and Design, 2014, 80: 23-32.
[10]	夏军武,徐博,张海威,等.带填充墙的悬臂梁拼接钢框架抗震性能研究[J].建筑结构学报, 2016, 37(11):113-120.
[11]	ZHANG A L, LI R, JIANG Z Q, et al. Experimental study of earthquake-resilient PBCSC with double flange cover plates[J]. Journal of Constructional Steel Research, 2018, 143: 343-356.
[12]	ZHANG A L, ZHANG H, JIANG Z Q, et al. Low cycle reciprocating tests of earthquake-resilient prefabricated column-flange beam-column joints with different connection forms[J]. Journal of Constructional Steel Research, 2020, 164, 105771.
[13]	LIN X C, CHEN Y, YAN J B, et al. Seismic behavior of welded beam-to-column joints of high-strength steel-moment frame with replaceable damage-control fuses[J]. Journal of Structural Engineering, 2020, 146(8), 04020143.
[14]	中国钢结构协会.多高层建筑全螺栓连接装配式钢结构技术标准:T/CSCS 012—2021[S]. 北京:中国建筑工业出版社, 2021.
[15]	ZHANG A L, GUO Z P, LIU X C. Seismic performance of Z-type cantilever beam splices of column-tree connection[J]. Journal of Constructional Steel Research, 2017, 133: 97-111.
[16]	王燕, 李华军, 厉见芬. 半刚性梁柱节点连接的初始刚度和结构内力分析[J]. 工程力学, 2003, 20(6):65-69.