传统木结构单向直榫节点转动弯矩-转角关系理论分析

发布时间：2018-03-04 17:21

  本文选题：传统木结构　切入点：单向直榫节点　出处：《湖南大学学报(自然科学版)》2017年07期 　论文类型：期刊论文

【摘要】：以传统木结构中最简单的单向直榫节点为研究对象,分析其受力机理,推导了单向直榫节点转动弯矩-转角理论计算公式,并借助试验数据对该公式进行了验证,理论计算结果与试验结果吻合较好.以理论公式为基础,对影响单向直榫节点转动弯矩的参数进行了分析,结果表明:当榫头长度与柱径之比小于1时,榫头长度的增加能显著提高单向直榫节点的转动弯矩和初始转动刚度;榫头宽度的增加同样能够提高单向直榫节点的转动弯矩以及初始转动刚度;摩擦系数的增大能够在一定程度上提高节点的转动弯矩,但对节点的初始转动刚度影响不大.研究结果可为传统木结构的抗震性能评估和修缮加固提供一定的参考.
[Abstract]:Taking the simplest unidirectional tenon joint in the traditional wood structure as the research object, the mechanical mechanism of the joint is analyzed, and the formula for calculating the rotational moment and rotation angle of the unidirectional straight tenon joint is derived, and the formula is verified by the experimental data. The theoretical results agree well with the experimental results. Based on the theoretical formula, the parameters affecting the rotational moment of unidirectional tenon joints are analyzed. The results show that when the ratio of tenon length to column diameter is less than 1:00, The increase of tenon length can significantly improve the rotational moment and initial rotational stiffness of unidirectional tenon joints, and the increase of tenon width can also improve the rotational moment and initial rotational stiffness of unidirectional joints. The increase of friction coefficient can improve the rotational moment of the joint to some extent, but has little effect on the initial rotational stiffness of the joint. The results of the study can provide a certain reference for the evaluation of seismic performance of the traditional wood structure and the repair and reinforcement of the joint.
【作者单位】： 西安建筑科技大学土木工程学院;中国建筑第七工程局有限公司;机械工业勘察设计研究院有限公司;
【基金】：国家自然科学基金资助项目(51278399) 陕西省自然科学基础研究计划重大基础研究项目(2016ZDJC-23) 国机集团科技发展基金资助项目(13-192) 西安建筑科技大学创新团队资助计划项目~~
【分类号】：TU366.2
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本文编号：1566593