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建造拱桥如采用支架施工,则需不少拱架木材或钢材,如采用无支架吊装施工,则需安装材料和起重设备较多,工艺较复杂,这在当前县社公路桥梁建设中,是一个需要解决的问题。 自承式模架结构是利用拱肋自身刚度来支承施工的荷载,达到不用拱架建造肋拱桥的目的,它尤其适应在高桥和通航之处施工,效果更为显明,由于节省木材、劳动力、资金和减少工序,施工工具简单,工艺浅显,且属现浇拱肋,易为群众掌握,有利于社队建桥的发展。
Construction of the arch bridge if the use of stent construction, you need a lot of arch wood or steel, such as the use of non-support hoisting construction, you need to install more materials and lifting equipment, technology is more complex, which in the current county community highway bridge construction, is A problem to be solved. Self-supporting mold frame structure is the use of arch ribs to support the construction of their own stiffness load to achieve the purpose of not using ribbed rib arch construction, which is especially suitable for construction at high bridge and navigation, the effect is more obvious, due to save wood, labor , Funds and reduce the process, construction tools simple, simple process, and is a cast-in-place arch rib, easy to grasp for the masses, is conducive to the development of social team building bridges.