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A platform for research: civil engineering, architecture and urbanism
Construction method for upper cross beam and tower crown of main tower of cable-stayed bridge
The invention provides a cable-stayed bridge main tower upper cross beam and tower crown construction method which comprises the steps that S1, after two middle tower columns are closed, main tower pouring continues to be conducted through a creeping formwork, S2, anchor bolts are pre-buried in the inner walls of the two sides, corresponding to the transverse bridge direction, in a closed area cavity, brackets are fixed through the anchor bolts, and distribution beams in the bridge direction are arranged above the brackets, and S3, the main tower upper cross beam and tower crown construction is conducted. Outer molds corresponding to the upper cross beams are arranged through a creeping formwork system, steel bars corresponding to the upper cross beams are bound in the outer molds, and the steel bars corresponding to the upper cross beams are connected with the steel bars corresponding to the tower columns; and S4, the upper cross beam is poured through concrete by adopting a horizontal layering method, so that the upper cross beam and the closure area are poured into a whole. A bottom formwork is arranged on the basis of a cavity with a closure area as an upper main tower, an outer formwork is arranged through a creeping formwork, so that construction of the upper cross beam is achieved, pouring is conducted through the horizontally-layered foundation in the construction process, and the concrete pouring quality is guaranteed.
本发明提供一种斜拉桥主塔上横梁、塔冠施工方法，包括：步骤S1，在两个中塔柱合拢后，通过爬模继续进行主塔浇注，步骤S2，在合拢区空腔室内对应横桥向的两侧内壁预埋锚固螺栓，通过锚固螺栓固定牛腿，在牛腿上方设置顺桥向的分配梁，步骤S3，通过爬模系统设置对应上横梁处的外模，在外模内部绑扎对应上横梁的钢筋，将上横梁对应的钢筋与塔柱对应的钢筋进行连接；步骤S4，通过混凝土采用水平分层的方法进行上横梁浇注，使上横梁与合拢区浇注为一个整体。以合拢区为上方主塔的空腔室为基础设置底模，并通过爬模设置外模板，以此实现上横梁的施工，施工过程中采用水平分层的基础进行浇注，保证混凝土浇筑质量。
Construction method for upper cross beam and tower crown of main tower of cable-stayed bridge
The invention provides a cable-stayed bridge main tower upper cross beam and tower crown construction method which comprises the steps that S1, after two middle tower columns are closed, main tower pouring continues to be conducted through a creeping formwork, S2, anchor bolts are pre-buried in the inner walls of the two sides, corresponding to the transverse bridge direction, in a closed area cavity, brackets are fixed through the anchor bolts, and distribution beams in the bridge direction are arranged above the brackets, and S3, the main tower upper cross beam and tower crown construction is conducted. Outer molds corresponding to the upper cross beams are arranged through a creeping formwork system, steel bars corresponding to the upper cross beams are bound in the outer molds, and the steel bars corresponding to the upper cross beams are connected with the steel bars corresponding to the tower columns; and S4, the upper cross beam is poured through concrete by adopting a horizontal layering method, so that the upper cross beam and the closure area are poured into a whole. A bottom formwork is arranged on the basis of a cavity with a closure area as an upper main tower, an outer formwork is arranged through a creeping formwork, so that construction of the upper cross beam is achieved, pouring is conducted through the horizontally-layered foundation in the construction process, and the concrete pouring quality is guaranteed.
本发明提供一种斜拉桥主塔上横梁、塔冠施工方法，包括：步骤S1，在两个中塔柱合拢后，通过爬模继续进行主塔浇注，步骤S2，在合拢区空腔室内对应横桥向的两侧内壁预埋锚固螺栓，通过锚固螺栓固定牛腿，在牛腿上方设置顺桥向的分配梁，步骤S3，通过爬模系统设置对应上横梁处的外模，在外模内部绑扎对应上横梁的钢筋，将上横梁对应的钢筋与塔柱对应的钢筋进行连接；步骤S4，通过混凝土采用水平分层的方法进行上横梁浇注，使上横梁与合拢区浇注为一个整体。以合拢区为上方主塔的空腔室为基础设置底模，并通过爬模设置外模板，以此实现上横梁的施工，施工过程中采用水平分层的基础进行浇注，保证混凝土浇筑质量。
Construction method for upper cross beam and tower crown of main tower of cable-stayed bridge
一种斜拉桥主塔上横梁、塔冠施工方法
AN GANGJIAN (author) / ZHOU QINGYONG (author) / GUO XIAONAN (author) / GAO ZHIJUN (author) / CHEN CHUNJIE (author) / WANG XIANGYU (author) / ZHANG SHUO (author) / JI YONG (author)
2023-06-30
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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