（1 中交第三公路工程局有限公司建筑工程分公司， 北京 100015； 

2 广州市增城区石滩镇人民政府， 广州 511330）

［摘要］采用ABAQUS有限元分析软件对9根H型钢-木组合梁试件的受弯性能进行非线性数值分析，并对组合梁数值模拟中木材和H型钢材料模型定义、有限元建模、弹簧单元生成及后处理等关键技术进行系统研究。采用ABAQUS中的弹簧单元Spring2组成三维连接单元模拟木材与H型钢的相互作用，并提出了生成弹簧单元的实用方法。分析结果表明，钢-木组合梁的ABAQUS数值模拟结果与试验结果吻合良好，从而表明所建立的ABAQUS数值模拟技术合理、可行。同时对钢-木组合梁抗弯性能进行参数分析，考虑钢材屈服强度、H型钢腹板厚度及高度、H型钢翼缘厚度、木材厚度和组合梁宽度对抗弯刚度和抗弯承载力的影响。分析结果表明，H型钢腹板高度影响最为显著，而腹板厚度的影响作用最小。

［关键词］H型钢； 组合梁； 受弯性能； 数值模拟； 参数分析

中图分类号：TU398+.6文献标识码：A文章编号：1002-848X(2017)13-0051-06

Numerical simulation and parameter analysis of flexural behavior of H-shape steel-wood composite beams

Sun Hongye1, Bai Libin1, Li Denghui2

(1 Building Engineering Branch of CCCC Third Highway Engineering Co., Ltd., Beijing 100015, China; 

2 Shitan Town People′s Government, Guangzhou Zengcheng District, Guangzhou 511330, China)

Abstract:Non-Linear numerical analyses for bending performance of nine H-shape steel-wood composite beams though ABAQUS software and systematic researches on some key technology such as material model definition of wood and H-shape steel, finite element modeling, spring unit generating and after-treatment were carried out. Spring2 element was used to build up three-dimensional connection model to simulate the interaction between wood board and H-spape steel, and practical method of generating spring unit was proposed. The analysis results show that the calculation results of ABAQUS largely accord with the experimental results, and it indicates that ABAQUS numerical simulation technology is reasonable and feasible. At the same time, the main parameters affecting bending performance of composite beams were analyzed, including steel yield strength, H-slape steel web thickness and height, H-slape steel flange thickness, wood thickness and composite H-slape steel  width. The results show that beam web height is the most significant influencing parameters, while the influence of web thickness is the least.

Keywords:H\|slape steel; composite beam; flexural behavior; numerical simulation; parameter analysis

作者简介：孙洪业，高级工程师，Email：shy_cccc@163.com。