【作者】 闫翔宇； 张浩泽；

【Author】 Yan Xiangyu;Zhang Haoze;School of Civil Engineering,Tianjin University;Tianjin University Architectural Design and Planning Research Institute Co., Ltd;

【机构】 天津大学建筑工程学院； 天津大学建筑设计规划研究总院有限公司；

【摘要】 钢管混凝土柱凭借其独特性能优势在工程建设中得到广泛应用,由于施工工艺及材料缺陷会出现钢管与混凝土脱空问题,导致构件受力性能劣化,进而引发结构整体承载力降低等安全问题。针对方钢管混凝土脱空问题,探讨现有研究成果的局限性,提出带脱空缺陷方钢管混凝土柱的关键科学问题。提出初步研究思路和方法,旨在为工程质量验收提供依据,为构件强度设计提供理论支撑,为预防方钢管混凝土柱脱空问题提供新方法、新思路。更多还原

【Abstract】 Concrete-filled steel tube columns have been widely used in engineering construction because of their unique performance advantages. Due to defects of the construction and materials, the separation between steel tube and concrete will occur, which leads to the deterioration of the mechanical performance of the columns and then leads to the safety problems such as the reduction of the overall bearing capacity of the structure. Aiming at the separation problem of square concrete-filled steel tube, the limitations of existing research results are discussed, and the key scientific problems of square concrete-filled steel tube column with separation are proposed. The preliminary research ideas and methods are proposed to provide the basis for the engineering quality acceptance, to provide theoretical support for the design of component strength, and to provide a new idea for preventing the separation problem of square concrete-filled steel tube columns.更多还原