文献类型：期刊文献

中文题名：正交层板胶合木轴心受压构件稳定系数的计算方法

英文题名：Calculation of stability coefficient of cross-laminated timber members in axial compression

作者：霍亮亮[1,2] 武国芳[3] 王化杰[4] 祝恩淳[4]

第一作者：霍亮亮

通信作者：Zhu, Enchun

机构：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090;[2]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,黑龙江哈尔滨150090;[3]中国林业科学研究院木材工业研究所,北京100090;[4]哈尔滨工业大学(威海)土木工程系,山东威海264209

年份：2021

卷号：42

期号：8

起止页码：107-116

中文期刊名：建筑结构学报

外文期刊名：Journal of Building Structures

收录：CSTPCD;;EI(收录号：20212710577683);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家自然科学基金面上项目(51778187);国家自然科学基金青年科学基金项目(51808546)。

语种：中文

中文关键词：正交胶合木;轴心受压木构件;稳定承载力试验;稳定系数

外文关键词：cross-laminated timber(CLT);timber member in axial compression;experiment of buckling capacity;stability coefficient

分类号：TU366.2;TU318.1

摘要：正交层板胶合木(CLT)在多、高层木结构建筑中的应用越来越多,但其轴心受压构件稳定承载力的计算是我国木结构设计中尚未解决的问题。为此,通过对各国木结构设计规范及相关技术手册中CLT轴压构件稳定系数的计算方法进行对比分析,在GB 50005—2017《木结构设计标准》中轴压木构件稳定系数计算式的基础上,提出了CLT轴压构件稳定系数的计算式,并通过回归分析确定了稳定系数计算式中适用于CLT的材料系数取值。对由铁杉规格材制作的3层CLT构件进行了轴心受压试验研究,所提建议式计算结果与试验结果之间相对偏差在10%以内,验证了所提出的稳定系数计算式及相应的材料系数取值的正确性和适用性,从而为CLT结构设计和工程应用提供了依据。
Cross-laminated timber(CLT) has gained more and more applications in multi-storey and high-rise timber struture buildings, but the calculation of the buckling capacity of the CLT members in axial compression in the structural design remains unsolved in our country. In view of this situation, the methods for calculating the stability coefficient in the existing design codes and related technical manuals were compared and analysed. Based on the existing equations for the stability coefficient of compression timber members in the GB 50005—2017 ‘Standard for design of timber structures’, the equations for calculating the stability coefficient applicable to CLT members were proposed, and the values of the material parameters in the equations were determined by regression analysis. Buckling tests of 3-ply CLT members in axial compression, which were made of Hemlock dimension lumber, were conducted. The results show that the discrepancy between the calculation results and test results is within 10%, thus verifying the correctness and feasibility of the proposed equations and the values for the material parameters, which provide reliable basis for engineering design and applications of CLT structures.