型钢混凝土的极限粘结强度试验研究  

Test research on ultimate bond strength of steel reinforced concrete

作　　者：赵根田[1] 李永和[2] 

机构地区：[1]内蒙古科技大学建筑与土木工程学院,包头014010 [2]上海大学土木工程系,上海200072

出　　处：《建筑结构》2008年第7期110-112,共3页Building Structure

基　　金：内蒙古自然科学基金(200208020212);包头市科技攻关项目(2003B003)资助

摘　　要：对11个具有不同截面尺寸、粘结长度、混凝土强度等级、保护层厚度、配箍率的型钢混凝土短柱进行了试验研究。测量的关键参数是型钢混凝土之间的粘结应力和滑移。型钢的粘结长度、混凝土强度等级、混凝土保护层厚度、配箍率是影响粘结性能和粘结强度的主要因素。提出了型钢翼缘和腹板处的粘结应力分布模式及极限粘结强度的计算公式。To study the bond-slip performance between structural steel and concrete, the test concerned eleven short columns with the different configuration, such as cross section dimensions, bond length, concrete strength, thickness of concrete cover and the rate of stirrup lateral, was carried out. Key parameters measured are bond stress and slip between structural steel and concrete. The bond length, concrete strength, thickness of concrete cover and rate of stirrup lateral are the main factors affecting the bond behavior and the bond capacity. The distribution mode of bend stress is noted on the flange and the web of structural steel. Moreover, a formula calculating ultimate bond strength between structural steel and concrete is proposed .

关 键 词：型钢钢筋混凝土 粘结机理 粘结应力 粘结强度 

分 类 号：TU392.1[建筑科学—结构工程] TU377.9