国外高层木结构研究综述

整理和分析了国外高层木结构研究现状,重点介绍了适用于高层木结构的正交层板胶合木(CLT)的最新研究进展,指出纵横交错的层板在承受平面外荷载时,其横向层的滚动抗剪性能需重点关注.针对高层木结构的关键问题,即结构体系、结构抗震与抗风性能、节点连接和抗火性能的研究进展进行了综述,指出结构体系中抗侧力性能、构件间的连接以及力的传递是今后研究的重点;高层木结构抗火性能的研究可以借鉴低层和多层木结构,但高度和人群密集的影响需特别关注.最后,对我国高层木结构的发展进行了展望,对关键问题进行了分析和总结.

State of the art Research of Tall Wood Buildings

State of the art research and application advance on tall wood buildings are summarized based on the current research situation abroad. Specially, an innovated engineering wood product, cross laminated timber (CLT) is emphasized for its rolling shear property, which is the dominant factor of out of plane capacity. The key issues on tall wood buildings, such as structural systems, seismic and wind resistance, connection capacities, as well as fire resistance are expatiated. On account of reviews of the latest study, this paper indicates that the connection of members, load path and force distribution in structural systems are the key points of future research. Meanwhile, research on fire resistance of tall wood buildings can learn some experience from low rise and multi storey wood buildings, but the height of building and the quantity of residents should be especially concerned. Finally, research prospects on development of Chinese tall wood buildings are proposed, and the key issues are analyzed and summarized.