新型PKG叠合板抗弯性能试验研究及有限元分析

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发布时间：2020-01-06 00:00:00

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新型PKG叠合板抗弯性能试验研究及有限元分析

Experimental Study and Finite Element Analysis on Bending Properties of New PKG Composite Plates

2021年第12期

新型PKG叠合板；装配整体式；有限元分析；肋形式；静载试验；受力机理

New PKG composite plate; Assembled monolithic structure; Finite element analysis; Rib form; Static load test; Force mechanism

2021年第12期

10.19761/j.1000-4637.2021.12.059.09

云南省科技厅重点专项项目（202003AC100001）。

金鸿鑫，陆琨，陶忠，房强，何颖成

昆明理工大学建筑工程学院，云南昆明 650500

金鸿鑫，陆琨，陶忠，房强，何颖成

金鸿鑫,陆琨,陶忠,等.新型PKG叠合板抗弯性能试验研究及有限元分析[J].混凝土与水泥制品,2021(12):59-66,74.

JIN H X,LU K,TAO Z,et al.Experimental Study and Finite Element Analysis on Bending Properties of New PKG Composite Plates[J].China Concrete and Cement Products,2021(12):59-66,74.

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摘要：对矩形肋叠合板构件和T形肋叠合板构件进行了均布加载试验，研究了各构件在受力过程中刚度、跨中挠度和裂缝的变化规律，对比分析了各部件的荷载-应变曲线，并得到了构件的开裂荷载和极限承载力。结果表明：叠合板件的力学性能受底板肋部形式的影响较大；相同跨度下，T形肋叠合板件的受力性能优于矩形肋叠合板件；两种肋形式的叠合板件均为受弯破坏，延性良好。T形肋预制底板的有限元分析结果表明，增加T形肋的腹板高度可明显提高构件的抗弯承载力；构件肋孔间的混凝土出现水平方向的贯通裂缝，表明肋孔间混凝土的破坏形式主要为剪切型破坏。 Abstract: Uniform loading tests were carried out on rectangular rib and T-shaped rib composite plates respectively, and the variation laws of stiffness, mid span deflection and cracks of each component during the loading process were studied, and the load-strain curves of each component were compared and analyzed, and the cracking load and ultimate bearing capacity of the component were obtained. The results show that the mechanical properties of the composite plates are greatly affected by the rib form of the bottom plate. Under the same span, the mechanical performance of T-shaped rib is better than that of rectangular rib. The composite plates with two kinds of ribs are flexural failure and have good ductility. The finite element analysis results of T-shaped rib precast floor show that increasing the web height of T-shaped rib can significantly improve the flexural capacity of the component. Horizontal through cracks appear in the concrete between the rib holes, which indicates that the failure mode of the concrete between the rib holes is mainly shear failure.

英文名 : Experimental Study and Finite Element Analysis on Bending Properties of New PKG Composite Plates

刊期 : 2021年第12期

关键词 : 新型PKG叠合板；装配整体式；有限元分析；肋形式；静载试验；受力机理

Key words : New PKG composite plate; Assembled monolithic structure; Finite element analysis; Rib form; Static load test; Force mechanism

刊期 : 2021年第12期

DOI : 10.19761/j.1000-4637.2021.12.059.09

文章编号 :

基金项目 : 云南省科技厅重点专项项目（202003AC100001）。

作者 : 金鸿鑫，陆琨，陶忠，房强，何颖成

单位 : 昆明理工大学建筑工程学院，云南昆明 650500

金鸿鑫，陆琨，陶忠，房强，何颖成

金鸿鑫,陆琨,陶忠,等.新型PKG叠合板抗弯性能试验研究及有限元分析[J].混凝土与水泥制品,2021(12):59-66,74.

JIN H X,LU K,TAO Z,et al.Experimental Study and Finite Element Analysis on Bending Properties of New PKG Composite Plates[J].China Concrete and Cement Products,2021(12):59-66,74.

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摘要

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结论

参考文献

引用本文

Abstract: Uniform loading tests were carried out on rectangular rib and T-shaped rib composite plates respectively, and the variation laws of stiffness, mid span deflection and cracks of each component during the loading process were studied, and the load-strain curves of each component were compared and analyzed, and the cracking load and ultimate bearing capacity of the component were obtained. The results show that the mechanical properties of the composite plates are greatly affected by the rib form of the bottom plate. Under the same span, the mechanical performance of T-shaped rib is better than that of rectangular rib. The composite plates with two kinds of ribs are flexural failure and have good ductility. The finite element analysis results of T-shaped rib precast floor show that increasing the web height of T-shaped rib can significantly improve the flexural capacity of the component. Horizontal through cracks appear in the concrete between the rib holes, which indicates that the failure mode of the concrete between the rib holes is mainly shear failure.

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新型PKG叠合板抗弯性能试验研究及有限元分析

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