The Continuum Analytical Method of Steel Frame- Reinforced Concrete Shear Wall Mixed Structure

The inter-story drift stiffness considered the semirigidity of beam and column joints connection, and P-Delta second order effect of steel frame parts in the mixed structure is presented in the paper. After considering on the influence of semirigidity between steel beams and steel columns, second order effect of beam-column members for steel frame and structural second order effect, the traditional continuum analytial method used in RC shear-frames wall structure is developed to steel frames-reinforced concrete shear wall mixed structure subject to horizontal load in this paper. A continuum approach, which is suitable for analyzing steel frames-reinforced concrete shear wall mixed structure subject to horizontal load, is presented. The method is relatively simple and more practical. It will be referred to structural design for steel frames-reinforced concrete shear wall mixed structure.

不均匀沉降条件下不同接头形式预制电缆隧道结构反应分析

对平接加预应力连接接头、凹凸面榫槽连接接头和凹凸面榫槽加预应力连接接头三种接头形式连接的预制装配式电缆隧道在软土地基上发生不均匀沉降的工况进行数值模拟,从沉降位移、错台量、张开量、混凝土应力-应变和环缝剪力五个方面进行对比分析,结果表明:凹凸面榫槽的存在提高了接头的抗剪性能,预应力筋的存在提高了接头的抗弯性能;两者均可提高电缆隧道结构的整体性,但预应力筋张拉会引起张拉端环缝产生较大的张开量、错台量和凹凸面榫槽主拉应力。为避免环缝处产生过大变形或发生局部破坏,对各种接头形式的设计提出了建议。