(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)
［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。
［关键词］型钢钢筋混凝土；粘结机理；粘结应力；粘结强度
Test research on ultimate bond strength of steel reinforced concrete
Zhao Gentian1,2, Li Yonghe2 (1 School of Architecture & Civil Engineering, Inner Mongolia University of Science & Technology， Baotou 014010, China; 2 Department of Civil Engineering, Shanghai University， Shanghai 200072, China)
Abstract: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 bond 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 .
Keywords:steel reinforced concrete; bond mechanism; bond stress; bond strength
内蒙古自然科学基金（200208020212），包头市科技攻关项目（2003B003）资助。
作者简介：赵根田，博士，教授，Email:zhaogt@tom.com。
参考文献
［1］杨勇，薛建阳，赵鸿铁. 型钢混凝土结构粘结强度分析［J］. 建筑结构，2001，31（7）：31-34.
［2］赵鸿铁，等. 型钢混凝土粘结滑移力学性能研究及基本问题［J］. 力学进展，2003，33（1）：74-86.
［3］赵鸿铁. 钢与混凝土组合结构［M］.北京：科学出版社，2001.
［4］赵根田，李永和，董必成. 型钢与混凝土的粘结性能［J］. 包头钢铁学院学报，2004，23（4）：360-363.
［5］ROEDER C W. Composite and Mixed Construction［M］. New York. Published by ASCE, 1984.
［6］BRYSON J O, MATHEY R G. Surface condition effect on bond strength of steel beams in concrete［J］.Journal of the American Concrete Institute，1962，59（3）:397406.
［7］肖季秋，等.劲性钢筋混凝土粘结性能的试验研究［J］.四川建筑科学研究，1992，68（4）：32-36.