一种新型钢管混凝土梁柱节点试验研究——RC楼层间钢管非连通型节点

钢管混凝土结构在工程建设逐步得到广泛应用，但受到原有不完善节点形式的制约，因此需要提出新型的承载力高、传力合理、构造简单和施工方便的节点形式。本研究提出了一种新型钢管混凝土柱梁节点形式。其主要特点是：柱钢管在梁柱节点区不连通、梁纵筋在节点区可连续直通，非连通柱钢管通过环梁节点加大节点区截面并配置环形钢筋加强，以达到节点更强目的。同时还介绍了关于该新型节点的部分前期试验研究结果。

Experimental Research on a New Type of Concrete Filled Steel Tubular Column-Beam Joint: Column Tube Discontinued in the Joint Zone

Concrete_Filled Steel Tubular (CFST) structure is now being widely used in engineering projects. To overcome the various shortcomings of traditional joint, there has been a growing need of a new type of concrete filled steel tubular column_beam joint, which should have high bearing capacity, reasonable force transmission, simple constitution and convenient construction. Such a new type of CFST column_beam joint is presented in this paper. The main feature of this joint is that the steel tube is discontinued in the joint zone, while the longitudinal steel bars are continued in this zone. The circular beam is set to enlarge the joint zone and the horizontal reinforcing steel bars are used to strengthen the joint zone, so that the zone is stronger than the steel tubular. Partial experimental results of this new type of joint is also presented in the paper.