节能砌块隐形密框复合墙体双面受火后滞回特性研究

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发布时间：2020-01-06 00:00:00

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节能砌块隐形密框复合墙体双面受火后滞回特性研究

Study on the hysteretic behavior of energy-saving block and invisible multi-ribbed frame composite wall subjected to double-side fire

2024年第5期

节能砌块隐形密框复合墙体；双面受火；轴压比；受火时间；恢复力模型

Energy-saving block and invisible multi-ribbed frame composite wall; Double-sided fire; Axial compression ratio; Fire time; Restoring force model

2024年第5期

10.19761/j.1000-4637.2024.05.066.07

福建省高校产学合作项目（2023Y4013）；闽南理工学院科技创新团队项目（23XTD115）；福建省教育厅中青年教师教育科研项目（科技类）（JAT231146）。

周玲玲1，李升才1，*，林文聪2，郑建英3，涂燕周4，郑建生5

1．闽南理工学院土木工程学院，福建泉州362700；2.福建省南禹工程建设有限公司，福建三明365000；3.建省禹江建设工程有限公司，福建福州350001；4.锦曦控股集团有限公司，福建福州350017；5.福建省中永建设工程有限公司，福建福州361102

周玲玲1，李升才1，*，林文聪2，郑建英3，涂燕周4，郑建生5

周玲玲,李升才,林文聪,等.节能砌块隐形密框复合墙体双面受火后滞回特性研究[J].混凝土与水泥制品,2024(5):66-72.

ZHOU L L,LI S C,LIN W C,et al.Study on the hysteretic behavior of energy-saving block and invisible multi-ribbed frame composite wall subjected to double-side fire[J].China Concrete and Cement Products,2024(5):66-72.

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摘要：为了评价节能砌块隐形密框复合墙体（以下简称复合墙体）受火后的滞回特性，制作了6个缩尺比例为1∶2的试件，并对试件进行了双面受火试验和受火后平面内循环往复加载试验，研究了轴压比、受火时间对墙体骨架曲线及滞回特性的影响。基于试验结果和现有恢复力模型理论，考虑轴压比和受火时间影响，提出了适用于受火后墙体试件的退化四线型恢复力模型。相关计算分析结果表明：计算得到的骨架曲线与试验情况以及计算得到的恢复力模型与墙体滞回曲线吻合程度均较好，表明提出的恢复力模型可较好地反映轴压比和受火时间对其滞回特性的影响，可为该墙体的结构弹塑性分析及工程应用提供参考。 Abstract: In order to evaluate th hysteretic behavior of the energy-saving block and invisible multi-ribbed frame composite wall(composite wall) after fire, six 1∶2 reduced scale specimens were prepared. And the specimens were tested under double-sided fire and subjected to an in-plane cyclic load. The influences of axial compression ratio and fire time on the skeleton curve and hysteretic characteristics of the composite walls were studied. According to the test results and the existing theory of restoring force model, a regressive four-fold line restoring force model suitable for the walls considering the influence of axial compression ratio and fire time was proposed. The relevant calculation and analysis results show that the calculated skeleton curve is in good agreement with the experimental skeleton curve. The calculated restoring force model is consistent with the hysteresis curve of the wall, which shows that the proposed restoring force model can better reflect the influence of the axial compression ratio and the fire time on its hysteretic characteristics, and can provide reference for structural elastic-plastic analysis and engineering application of the wall.

英文名 : Study on the hysteretic behavior of energy-saving block and invisible multi-ribbed frame composite wall subjected to double-side fire

刊期 : 2024年第5期

关键词 : 节能砌块隐形密框复合墙体；双面受火；轴压比；受火时间；恢复力模型

Key words : Energy-saving block and invisible multi-ribbed frame composite wall; Double-sided fire; Axial compression ratio; Fire time; Restoring force model

刊期 : 2024年第5期

DOI : 10.19761/j.1000-4637.2024.05.066.07

文章编号 :

基金项目 : 福建省高校产学合作项目（2023Y4013）；闽南理工学院科技创新团队项目（23XTD115）；福建省教育厅中青年教师教育科研项目（科技类）（JAT231146）。

作者 : 周玲玲1，李升才1，*，林文聪2，郑建英3，涂燕周4，郑建生5

单位 : 1．闽南理工学院土木工程学院，福建泉州362700；2.福建省南禹工程建设有限公司，福建三明365000；3.建省禹江建设工程有限公司，福建福州350001；4.锦曦控股集团有限公司，福建福州350017；5.福建省中永建设工程有限公司，福建福州361102

周玲玲1，李升才1，*，林文聪2，郑建英3，涂燕周4，郑建生5

周玲玲,李升才,林文聪,等.节能砌块隐形密框复合墙体双面受火后滞回特性研究[J].混凝土与水泥制品,2024(5):66-72.

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参考文献

引用本文

Abstract: In order to evaluate th hysteretic behavior of the energy-saving block and invisible multi-ribbed frame composite wall(composite wall) after fire, six 1∶2 reduced scale specimens were prepared. And the specimens were tested under double-sided fire and subjected to an in-plane cyclic load. The influences of axial compression ratio and fire time on the skeleton curve and hysteretic characteristics of the composite walls were studied. According to the test results and the existing theory of restoring force model, a regressive four-fold line restoring force model suitable for the walls considering the influence of axial compression ratio and fire time was proposed. The relevant calculation and analysis results show that the calculated skeleton curve is in good agreement with the experimental skeleton curve. The calculated restoring force model is consistent with the hysteresis curve of the wall, which shows that the proposed restoring force model can better reflect the influence of the axial compression ratio and the fire time on its hysteretic characteristics, and can provide reference for structural elastic-plastic analysis and engineering application of the wall.

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节能砌块隐形密框复合墙体双面受火后滞回特性研究

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