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2. 发明授权

US4783940A Concrete filled steel tube column and method of constructing same 失效
标题翻译：混凝土填充钢管柱及其构造方法
公开(公告)号：US4783940A
公开(公告)日：1988-11-15
申请号：US946713
申请日：1986-12-24
申请人： Takanori Sato , Yasukazu Nakamura , Hideo Nakajima , Yasushi Watanabe , Yoshihiro Orito , Toru Ito , Yutaka Saito
发明人： Takanori Sato , Yasukazu Nakamura , Hideo Nakajima , Yasushi Watanabe , Yoshihiro Orito , Toru Ito , Yutaka Saito
IPC分类号： E04B1/24 , E04C3/34 , E04C3/10
CPC分类号： E04B1/2403 , E04C3/34 , E04B2001/2406 , E04B2001/2454 , E04B2001/246
摘要： A concrete filled steel tube column which includes: a steel tube connected to beams of a structure so that an axial compressive load is transferred from the beams to the steel tube; and a concrete core, disposed within the steel tube, for bearing an axial compressive load transferred from the beams via the steel tube to the concrete core. The steel tube has a plurality of prestressed tube pieces concentrically joined in series. Each of these tube pieces has an axial prestress introduced into it to counteract a stress resulting from the compressive load applied to the steel tube. With this arrangement, substantially no axial stress is induced in the steel tube. In constructing the column, a steel tube piece is erected, and beams are joined to the tube piece. An axial tensile load is applied to the tube piece so that an axial stress is induced in the tube piece. After the application of the load, concrete is charged into the tube piece. After the concrete is cured, the tensile load is released from the tube piece so that the concrete core is subjected to an axial compression as a reaction to the application of an axial tension to the tube piece. Another tube piece is coaxially joined to an upper end of the concrete filled tube piece. Thereafter, the above-mentioned steps from the beam-joining step to the tube piece-joining step are repeated a plurality of times.
摘要翻译：一种混凝土填充钢管柱，其包括：连接到结构梁的钢管，使得轴向压缩载荷从梁传递到钢管; 以及设置在钢管内的混凝土芯，用于承受从梁经由钢管传递到混凝土芯的轴向压缩载荷。钢管具有多个同心串联连接的预应力管件。这些管件中的每一个具有引入其中的轴向预应力以抵消由施加到钢管的压缩载荷而产生的应力。通过这种布置，在钢管中基本上不产生轴向应力。在构成柱时，竖立钢管片，并将梁接合到管件上。对管件施加轴向拉伸载荷，从而在管件中引起轴向应力。施加负载后，将混凝土装入管件中。在混凝土固化后，拉伸载荷从管件释放，使得混凝土芯体受到轴向压缩，作为对管件施加轴向张力的反应。另一管件同轴地连接到混凝土填充管件的上端。此后，重复上述从束连接步骤到管件接合步骤的步骤。

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