钢筋混凝土预制拼装柱扭转力学性能数值模拟与参数分析

刘洪涛; 孔鹏超; 王作虎; 廖维张

doi:10.11899/zzfy20220217

钢筋混凝土预制拼装柱扭转力学性能数值模拟与参数分析

doi: 10.11899/zzfy20220217

刘洪涛^{1, 2,},
孔鹏超¹,
王作虎^1, ,,
廖维张¹

1.
北京建筑大学, 土木与交通工程学院, 北京 100044
2.
北京工业大学, 城市与工程安全减灾教育部重点实验室, 北京 100124

基金项目: 国家自然科学基金（51908013）；北京市朝阳区博士后基金（2019ZZ-27）

详细信息

作者简介:
刘洪涛，男，生于1986年。博士，硕士生导师。主要从事装配式结构抗震性能研究。E-mail：liuhongtao@bucea.edu.cn

通讯作者:
王作虎，男，生于1979年。博士，硕士生导师。主要从事钢筋混凝土结构及砌体结构加固。E-mail: wangzuohu@bucea.edu.cn

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出版历程
- 收稿日期: 2021-09-06
- 刊出日期: 2022-06-30

Numerical Simulation and Parameter Analysis of Torsion Mechanical Properties of Reinforced Concrete Precast Assembly Columns

1.
School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
2.
Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 采用ABAQUS大型有限元分析软件开展预制拼装柱扭转力学性能数值模拟及参数分析，研究了轴压比、灌浆套筒位置及长度、预制构件拼接缝界面黏结强度对灌浆套筒连接中柱抗扭性能的影响。研究结果表明：轴压比会显著影响预制拼装柱抗扭承载力和变形，而灌浆套筒位置和长度对预制拼装柱抗扭力学性能的影响不明显；预制构件拼接缝界面黏结强度显著影响预制拼装柱抗扭性能。基于预制拼装构件和现浇构件力学性能的对比分析，提出了轴向荷载和扭矩共同作用下灌浆套筒连接预制拼装柱抗扭承载力设计方法。
- 灌浆套筒 /
- 预制拼装柱 /
- 抗扭性能 /
- 数值模拟
Abstract: The numerical simulation and parameter analysis of torsional mechanical properties of precast columns were studied using the finite element method adopted by ABAQUS. The effects of axial pressure ratio, grouted sleeve position and length, and bonding strength at the interface of the splice joints of precast members on the torsional performance of columns connected by grouted sleeves were studied. The analysis shows that the axial compression ratio significantly affects the torsion resistance and torsion deformation of the precast column, while the position and length of the grouted sleeves have no obvious effect on the torsion resistance mechanical properties of the precast column. The bonding strength of the joint interface of the precast component significantly affects the torsional performance of the precast assembled column. Based on the comparative analysis of the mechanical properties of precast assembled members and cast-in-place members, a design method for the torsional load capacity of precast assembled columns connected by grouted sleeves under the joint action of axial load and torque is proposed.
- Grouted sleeve /
- Precast column /
- Torsion resistance /
- Numerical simulation

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图 1 钢筋混凝土柱截面示意

Figure 1. Schematic diagram of common section and sleeve section

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图 2 材料应力-应变关系曲线

Figure 2. Material stress-strain relationship curve

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图 3 计算模型及边界条件

Figure 3. Calculation model and boundary conditions

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图 4 数值模拟骨架曲线与试验骨架曲线对比

Figure 4. Comparison between numerical simulation and experiment backbone curves

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图 5 构件扭矩-转角关系曲线

Figure 5. Relationship curves of torque and rotation angle

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图 6 构件峰值承载力-设计轴压比关系曲线

Figure 6. Relationship curve of peak bearing capacity and axial compression ratio

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图 7 破坏时刻构件转角-设计轴压比关系曲线

Figure 7. Relationship curves of rotation angle and axial pressure ratio

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图 8 构件转角变形分布

Figure 8. Distribution of component rotation angle deformation

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图 9 构件等效塑性应变云图

Figure 9. PEEQ nephogram of components

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图 10 灌浆套筒位置对构件抗扭性能的影响

Figure 10. Influence of sleeve position on torsion resistance

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图 11 灌浆套筒长度对抗扭承载力的影响

Figure 11. Influence of grouted sleeve length on torsion bearing capacity

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图 12 预制构件拼接缝界面黏结强度对预制拼装柱扭转力学性能的影响

Figure 12. Influence of bond strength of precast components on torsion and rotation properities of precast assembled columns

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表 1 构件编号及参数

Table 1. Component numbers and parameters

构件编号	设计轴压比	切线强度1/MPa	切线强度2/MPa
YZC05-1	0.5	0.016	0.016
YZC05-2	0.5	0.160	0.160
YZC05-3	0.5	0.660	0.660
YZC05-4	0.5	1.600	1.600
YZC05-5	0.5	2.600	2.600
YZC05-6	0.5	3.600	3.600
YZC05-7	0.5	5.600	5.600

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参考文献(13)

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