L-shaped steel pipe-steel framework recycled concrete combined pillar
A technology of recycled concrete and composite columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of limited use range, poor strength, poor shrinkage performance, durability, and high water absorption, so as to broaden the application and development space, improve Effects of load-carrying capacity, ductility, and seismic performance improvement
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[0019] The present invention can be realized in general concrete member factory with reference to accompanying drawing and description. The steel frame is welded by steel plate, the recycled concrete is located inside the steel pipe, and the concrete wraps the steel frame. The shaft, inner steel frame and steel pipe are fixed together with the bottom plate by welding or bolting. The center of the L-shaped column refers to the center of the rectangular part on the limb, the steel frame is arranged in a T shape, and the bottom ends of the two steel frame vertical columns are fixed together.
[0020] The specific process is as follows:
[0021] 1. Weld the steel plates into steel frames according to the regulations;
[0022] 2. Fix the steel frame and steel pipe to the bottom plate by welding or bolting, and keep it vertical or at a certain angle;
[0023] 3. Fully mix recycled concrete fragments of a certain proportion and size with cement to form recycled concrete;
[0024]...
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