Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge transformation construction method for additionally arranging line turnout on existing railroad bridge
The invention discloses a bridge transformation construction method for additionally arranging a line turnout on an existing railroad bridge, and belongs to the technical field of railroad bridge construction. The method comprises the steps that a frame bridge is prefabricated beside a railway, a turnout is placed on the frame bridge, a line is blocked after the frame bridge is prefabricated, an existing bridge is dismantled, and the frame bridge is jacked in place in a jacking mode; when the bridge abutment structure is newly built, the existing bridge structure is wrapped by the new bridge abutment structure to form a stress community. According to the invention, the influence of construction on railway operation can be reduced, and the railway breaking time of a railway business line is shortened; the frame bridge adopts a jacking in-place mode, after a line is blocked, the frame bridge can be jacked in place at a time through the jacking technology, the construction speed is high, the construction period is short, and the problem that the bridge cast-in-place construction period is long can be solved; the existing bridge structure is wrapped by the new abutment structure to form a stress community, so that the connection between the newly-built bridge and the existing railway bridge is reliable, the connection work amount is reduced, and the time for building a new structure in situ after the existing bridge structure is dismantled is avoided.
本发明公开了一种既有铁路桥梁增设线路道岔的桥梁改造施工方法，属于铁路桥梁施工技术领域。其是在铁路旁预制框架桥，道岔放在框架桥上，框架桥预制完后封锁线路拆除既有桥梁，采用顶进的方式将框架桥顶进就位；新建桥台结构时，利用新桥台结构将既有桥梁结构包裹形成一个受力共同体。本发明可减少施工对铁路运营的影响，缩短铁路营业线断道时间；框架桥采用顶进就位的方式，封锁线路后可利用顶进技术一次顶进就位，施工速度快，施工工期短，可解决桥梁现浇施工工期长的问题；本发明利用新桥台结构将既有桥梁结构包裹形成一个受力共同体，使得新建桥梁与既有铁路桥梁衔接可靠，减少了衔接工程量，并避免了拆除既有桥梁结构后在原位修建新结构的时间。
Bridge transformation construction method for additionally arranging line turnout on existing railroad bridge
The invention discloses a bridge transformation construction method for additionally arranging a line turnout on an existing railroad bridge, and belongs to the technical field of railroad bridge construction. The method comprises the steps that a frame bridge is prefabricated beside a railway, a turnout is placed on the frame bridge, a line is blocked after the frame bridge is prefabricated, an existing bridge is dismantled, and the frame bridge is jacked in place in a jacking mode; when the bridge abutment structure is newly built, the existing bridge structure is wrapped by the new bridge abutment structure to form a stress community. According to the invention, the influence of construction on railway operation can be reduced, and the railway breaking time of a railway business line is shortened; the frame bridge adopts a jacking in-place mode, after a line is blocked, the frame bridge can be jacked in place at a time through the jacking technology, the construction speed is high, the construction period is short, and the problem that the bridge cast-in-place construction period is long can be solved; the existing bridge structure is wrapped by the new abutment structure to form a stress community, so that the connection between the newly-built bridge and the existing railway bridge is reliable, the connection work amount is reduced, and the time for building a new structure in situ after the existing bridge structure is dismantled is avoided.
本发明公开了一种既有铁路桥梁增设线路道岔的桥梁改造施工方法，属于铁路桥梁施工技术领域。其是在铁路旁预制框架桥，道岔放在框架桥上，框架桥预制完后封锁线路拆除既有桥梁，采用顶进的方式将框架桥顶进就位；新建桥台结构时，利用新桥台结构将既有桥梁结构包裹形成一个受力共同体。本发明可减少施工对铁路运营的影响，缩短铁路营业线断道时间；框架桥采用顶进就位的方式，封锁线路后可利用顶进技术一次顶进就位，施工速度快，施工工期短，可解决桥梁现浇施工工期长的问题；本发明利用新桥台结构将既有桥梁结构包裹形成一个受力共同体，使得新建桥梁与既有铁路桥梁衔接可靠，减少了衔接工程量，并避免了拆除既有桥梁结构后在原位修建新结构的时间。
Bridge transformation construction method for additionally arranging line turnout on existing railroad bridge
一种既有铁路桥梁增设线路道岔的桥梁改造施工方法
JING YONGJUN (Autor:in) / WANG XINDE (Autor:in) / YU RONGGUO (Autor:in) / XU YANZHAO (Autor:in) / LU DAPENG (Autor:in) / ZOU PENG (Autor:in) / QIAO SHI (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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