Development of nylon plate joints with dowels in post and beam constructions

本研究的目的是评估尼龙板节点的承载能力与销代替钢板节点与销。进行了四种试验：静剪试验、双向循环加载试验、蠕变试验和冲击试验。结果表明：1）在静剪试验中，尼龙节点的强度和刚度均不如钢板节点。2）在双向循环荷载作用下直至屈服荷载，尼龙板节点未发生破坏; 3）不同尼龙板节点的蠕变试验结果差异不大，4）尼龙板节点和预切节点在冲击荷载试验中没有明显的差异。尼龙板接头可用于柱和梁结构。本研究未考虑耐久性和阻燃特性，但由于尼龙板用于木材，尼龙板接头可免受紫外线和火灾产生的热量的影响。

The objective of this study was to evaluate the load carrying capacity of nylon plate joints with dowels instead of steel plate joints with dowels. Four kinds of tests were conducted ; static shear test, two-way cyclic loading test, creep test and impact test. The following results were obtained.1) In the static shear test, strength and stiffness of nylon joints was inferior to those of steel plate joint. However, since the failure mode was the same as that of steel plate joints and little plate crack was seen.2) Under the two-way cyclic loading up to yield load, there was no failure in the nylon plate joints.3) There were no serious differences in creep tests among nylon plate joints, steel plate joints and pre-cut joints.4) There were no serious differences in impact loading tests between nylon plate joints and pre-cut jointsSumming up the above results in conclusion, nylon plate joints can be used for the post and beam construction.Durability and fire retardant characteristics were not considered in this study, but since the nylon plates are used in the wood, the nylon plate joints may be free from the ultra-violet light and the heat due to fire.