论文部分内容阅读
我们从事房屋建筑维修工作的工人、干部、技术人员,在工作实践中发现:木结构的弯曲变形随着时间的增长而积累增加。当这种变形发展严重的时候,以致影响结构的安全使用,历年来这方面的修理工作花费了许多人力、物力。关于木结构弯曲变形时间积累的原因,本文将简要介绍我们在这方面研究的一些体会,如有错误,请予指正。一、持久荷载作用下木材试件的物理力学性能木材组织的各向异性影响了木材的物理力学性能,同时,持久荷载作用也影响木材的物理力学性能。苏联学者别列金曾在一系列相
The workers, cadres and technicians who are engaged in house building maintenance work find in practice that the bending deformation of wood structures has increased over time. When this kind of deformation develops seriously, so as to affect the safe use of the structure, the repair work in this area has taken a lot of manpower and material resources over the years. On the reasons for the accumulation of bending deformation time, this article will briefly introduce some of our experience in this area, if any errors, please correct me. First, the physical and mechanical properties of the wood specimen under the action of permanent load The anisotropy of the wood tissue affects the physical and mechanical properties of the wood. At the same time, the permanent load also affects the physical and mechanical properties of the wood. Soviet scholars do not have gold in a series of phase