A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Simply supported-to-continuous track beam bridge and support design method and construction method
The invention provides a simply supported and rotated continuous track beam bridge and a support design method and a construction method, and is applied to the technical field of simply supported and rotated continuous track beam bridge design and construction.The bridge comprises track beams, bridge piers, continuous pier permanent supports, post-pouring wet joints and upper pre-stress short beam assemblies, and the adjacent track beams are connected through the post-pouring wet joints; the post-cast wet joint is connected with the track beam in a reinforced manner through an upper pre-stress short beam assembly; according to the support design method, the friction resistance coefficient of the support is solved, and it is ensured that the track beam does not slide under traction braking force; the construction method comprises the steps that the track beams are erected, and the post-pouring wet joints, the upper prestress short bundle assemblies and the lower edge prestress short bundle assemblies are arranged; according to the method, beam end corners and live load downwarping are effectively reduced, it is ensured that the butt joint end keeps prestress and is not prone to cracking, smooth transition between two-span track beams is achieved, the bumping phenomenon at the position is avoided, and better mechanical performance, durability, construction convenience and economic and social benefits are achieved.
本发明提供一种简支转连续轨道梁桥及支座设计方法、施工方法，应用于简支转连续轨道梁桥设计和施工技术领域，该桥包括轨道梁、桥墩、连续墩永久支座、后浇湿接头和上部预应力短束组件，相邻轨道梁通过后浇湿接头进行连接，后浇湿接头通过上部预应力短束组件加强与轨道梁的连接；该支座设计方法求解支座的摩阻系数，确保轨道梁在牵引制动力下不发生滑动；该施工方法为搭设轨道梁和设置后浇湿接头、上部预应力短束组件、下缘预应力短束组件的方法；本发明有效降低了梁端转角和活载下挠、确保了对接端保持预应力而不易开裂、实现了两跨轨道梁间的平顺过渡、避免了在该处发生跳车现象，具有更好的力学性能、耐久性能、施工便利性和经济社会效益。
Simply supported-to-continuous track beam bridge and support design method and construction method
The invention provides a simply supported and rotated continuous track beam bridge and a support design method and a construction method, and is applied to the technical field of simply supported and rotated continuous track beam bridge design and construction.The bridge comprises track beams, bridge piers, continuous pier permanent supports, post-pouring wet joints and upper pre-stress short beam assemblies, and the adjacent track beams are connected through the post-pouring wet joints; the post-cast wet joint is connected with the track beam in a reinforced manner through an upper pre-stress short beam assembly; according to the support design method, the friction resistance coefficient of the support is solved, and it is ensured that the track beam does not slide under traction braking force; the construction method comprises the steps that the track beams are erected, and the post-pouring wet joints, the upper prestress short bundle assemblies and the lower edge prestress short bundle assemblies are arranged; according to the method, beam end corners and live load downwarping are effectively reduced, it is ensured that the butt joint end keeps prestress and is not prone to cracking, smooth transition between two-span track beams is achieved, the bumping phenomenon at the position is avoided, and better mechanical performance, durability, construction convenience and economic and social benefits are achieved.
本发明提供一种简支转连续轨道梁桥及支座设计方法、施工方法，应用于简支转连续轨道梁桥设计和施工技术领域，该桥包括轨道梁、桥墩、连续墩永久支座、后浇湿接头和上部预应力短束组件，相邻轨道梁通过后浇湿接头进行连接，后浇湿接头通过上部预应力短束组件加强与轨道梁的连接；该支座设计方法求解支座的摩阻系数，确保轨道梁在牵引制动力下不发生滑动；该施工方法为搭设轨道梁和设置后浇湿接头、上部预应力短束组件、下缘预应力短束组件的方法；本发明有效降低了梁端转角和活载下挠、确保了对接端保持预应力而不易开裂、实现了两跨轨道梁间的平顺过渡、避免了在该处发生跳车现象，具有更好的力学性能、耐久性能、施工便利性和经济社会效益。
Simply supported-to-continuous track beam bridge and support design method and construction method
一种简支转连续轨道梁桥及支座设计方法、施工方法
ZHOU SHUAI (author) / YU PENG (author)
2023-10-20
Patent
Electronic Resource
Chinese
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