Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for setting pre-camber of deck type railway steel truss arch bridge
The invention discloses a method for setting the pre-camber of a deck type railway steel truss arch bridge. Pre-camber is set for an on-arch pier and an on-arch beam respectively, so the setting of the pre-camber of the steel truss arch in the prior art is avoided, the design difficulty of the steel truss arch ring and the manufacturing difficulty of the steel rod piece are reduced, the influenceof steel truss arch ring manufacturing and mounting errors and the like on the pre-camber setting is considered, and the actual line shape of the on-arch beam of the steel truss arch bridge is more consistent with the ideal line shape during bridge forming and operation. The pre-camber is set for the on-arch pier, and a supporting point is effectively arranged. Through setting the pre-camber for the on-arch beam, the pre-camber is effectively formed between supporting points; the setting method comprehensively considers the pre-camber of the two parts, is scientific, reasonable and reliable, effectively solves the problem of setting the pre-camber of the large-span deck type railway steel truss arch bridge, is simple, practical and convenient to construct, is beneficial to obtaining the ideal line shape of the on-arch beam, guarantees the safety and comfort when a train crosses the bridge, and is worthy of wide-range popularization.
本发明公开了一种上承式铁路钢桁拱桥预拱度的设置方法，采用分别对拱上墩和拱上梁设置预拱度，避免了现有技术中对钢桁拱进行预拱度的设置，减小了钢桁拱圈设计难度和钢杆件制造难度，并且考虑了钢桁拱圈制造安装误差等对预拱度设置的影响，使得成桥及运营期间钢桁拱桥拱上梁的实际线形与理想线形更加一致，通过对所述拱上墩设置预拱度，有效对支点处进行设置，通过对所述拱上梁设置预拱度，有效对支点之间形成预拱度，综合考虑两部分的预拱度，设置方法科学合理可靠，有效解决了大跨度上承式铁路钢桁拱桥预拱度设置的难题，方法简单、实用，便于施工，利于获得拱上梁理想的线形，保障列车过桥的安全性和舒适性，值得大范围推广。
Method for setting pre-camber of deck type railway steel truss arch bridge
The invention discloses a method for setting the pre-camber of a deck type railway steel truss arch bridge. Pre-camber is set for an on-arch pier and an on-arch beam respectively, so the setting of the pre-camber of the steel truss arch in the prior art is avoided, the design difficulty of the steel truss arch ring and the manufacturing difficulty of the steel rod piece are reduced, the influenceof steel truss arch ring manufacturing and mounting errors and the like on the pre-camber setting is considered, and the actual line shape of the on-arch beam of the steel truss arch bridge is more consistent with the ideal line shape during bridge forming and operation. The pre-camber is set for the on-arch pier, and a supporting point is effectively arranged. Through setting the pre-camber for the on-arch beam, the pre-camber is effectively formed between supporting points; the setting method comprehensively considers the pre-camber of the two parts, is scientific, reasonable and reliable, effectively solves the problem of setting the pre-camber of the large-span deck type railway steel truss arch bridge, is simple, practical and convenient to construct, is beneficial to obtaining the ideal line shape of the on-arch beam, guarantees the safety and comfort when a train crosses the bridge, and is worthy of wide-range popularization.
本发明公开了一种上承式铁路钢桁拱桥预拱度的设置方法，采用分别对拱上墩和拱上梁设置预拱度，避免了现有技术中对钢桁拱进行预拱度的设置，减小了钢桁拱圈设计难度和钢杆件制造难度，并且考虑了钢桁拱圈制造安装误差等对预拱度设置的影响，使得成桥及运营期间钢桁拱桥拱上梁的实际线形与理想线形更加一致，通过对所述拱上墩设置预拱度，有效对支点处进行设置，通过对所述拱上梁设置预拱度，有效对支点之间形成预拱度，综合考虑两部分的预拱度，设置方法科学合理可靠，有效解决了大跨度上承式铁路钢桁拱桥预拱度设置的难题，方法简单、实用，便于施工，利于获得拱上梁理想的线形，保障列车过桥的安全性和舒适性，值得大范围推广。
Method for setting pre-camber of deck type railway steel truss arch bridge
一种上承式铁路钢桁拱桥预拱度的设置方法
CHEN KEJIAN (Autor:in) / XU ZHIYAN (Autor:in) / YU LANG (Autor:in) / HE TINGGUO (Autor:in) / AI ZHINENG (Autor:in) / YOU LIHUI (Autor:in) / YI DAWEI (Autor:in) / HUANG YI (Autor:in) / XU MIN (Autor:in) / LIAO WENJIAN (Autor:in)
31.07.2020
Patent
Elektronische Ressource
Chinesisch
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