中南大学学报（自然科学版）2012，Vol.43Issue(11)：4433-4438,6.
考虑剪切和界面滑移的钢-混凝土组合箱梁变分解法
Energy variational method of shear deformation and slip effect of steel-concrete composite box beam
摘要
Abstract
The differential governing equations of composite beams were presented based on minimum potential energy and variational method. Both shear deformation and interfacial slip were taken into account. The energy variation principle was applied to establish the governing differential equations and corresponding natural boundary conditions of the steel-concrete composite box beam. The closed-form solutions of the equations were obtained using the minimum potential energy principle. The expressions of additional bending moment due to interfacial ship for concentrated and distributed loads were presented. Using the expressions of additional bending moment and structure mechanics deflection formula, the effect of slip on deflection was analyzed, and the calculated results were compared with the test results. The results show that the analytical solutions of this paper are exact, simple and effective, and lay the foundation for the composite box beam finite element analysis of bearing capacity.关键词
钢-混凝土组合箱梁/变分法/剪切变形/滑移效应Key words
steel-concrete composite box beam/ energy variational principle/ shear deformation/ slip effect分类
交通工程引用本文复制引用
贺桂超,周凌宇..考虑剪切和界面滑移的钢-混凝土组合箱梁变分解法[J].中南大学学报（自然科学版）,2012,43(11):4433-4438,6.基金项目
国家自然科学基金资助项目(50708112) （50708112）
