框剪转换、截面阶形变化组合薄壁杆的内力分析

INTERNAL FORCE ANALYSIS OF STRUCTURE COMPOSED OF FRAME SHEAR WALLS AND COMPOSITE THIN WALLED RODS WITH TRANSFER STORY AND STEP CHANGE OF SECTION

本文讨论了使用连续化方法的等截面组合薄壁杆的超单元公式化,建立了其超单元刚度矩阵和荷载矩阵的表达式.利用组合薄壁杆在截面阶形突变处的连接条件、框剪转换层和组合薄壁杆连接处的主从变换关系以及其它单元和组合薄壁杆连接的技巧,就可以使用普通位移法来解决不同等截面组合薄壁杆区段、框支剪力墙区段及其它结构单元组成的复杂结构的内力分析问题.

This paper discussed the formation of the large elements of composite thin-walled rods with uniform section using the continuous method and established the expressions of large element stiffness matrixes and load matrixes. By use of the connecting condition of composite thin walled rod at the place of sudden change of section, the principal-subordinate change relation at the connecting joint of frame-shear wall transfer story and composite thin-wall rod, as well as the connecting technique of other elements with the composite thin-welled rod, the ordinary displacement method can be used to solve the problems lying in internal force analysis of complex structure composed of composite thin walled rods, frame-shear wall and other elements.