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Steel box girder installation construction method
The invention discloses a steel box girder installation construction method, which belongs to the field of bridge construction, and comprises the following steps: S1, processing and manufacturing a steel box girder; s2, constructing a jig frame foundation, setting out the positions of the jig frame foundation and a steel pipe column connecting embedded part according to the jig frame positioning coordinates determined by dividing the steel main beam unit sections, pouring a C30 concrete foundation, and installing the embedded part; s3, after the concrete strength reaches 50%, jig frame steel pipe columns are installed, top distribution beams and inter-column web members are connected, and the perpendicularity of the steel pipe columns and the jig frame top elevation are controlled; s4, steel beam sections are hoisted, and a U-shaped steel box beam is installed through a high-tonnage truck crane; s5, bridge deck slab concrete construction; and S6, welding is ended, the concrete bridge deck is constructed through the steel-concrete composite beam, finish paint is sprayed, and the jig frame is dismantled. The process from manufacturing and machining of the steel box girder to the final disassembly of the steel box girder is finely planned. And the shrinkage amount of the panel after subsequent welding is reduced, the deformation amount of the panel after welding is reduced, and the workload of correcting the steel box girder in the later period is reduced.
本发明公开了一种钢箱梁安装施工方法,属于桥梁施工领域,包括步骤:S1,加工制造钢箱梁;S2,胎架基础施工,根据钢主梁单元节段划分确定的胎架定位坐标放样胎架基础及钢管柱连接埋件位置,浇筑C30砼基础并安设预埋件;S3,待砼强度达50%后安装胎架钢管柱、顶部分配梁和柱间腹杆连接,并控制钢管柱垂直度和胎架顶部标高;S4,钢梁节段吊装,采用高吨位汽车吊安装U型钢箱梁;S5,桥面板砼施工;S6,焊接收尾、钢混组合梁施工混凝土桥面板、面漆喷涂、拆除胎架。本发明从钢箱梁的制造加工到最终的钢箱梁的拆卸等过程进行了细致规划。减少了面板在经过后续的焊接之后的收缩量,减少了面板焊接之后的变形量,减少了后期对钢箱梁进行矫正时的工作量。
Steel box girder installation construction method
The invention discloses a steel box girder installation construction method, which belongs to the field of bridge construction, and comprises the following steps: S1, processing and manufacturing a steel box girder; s2, constructing a jig frame foundation, setting out the positions of the jig frame foundation and a steel pipe column connecting embedded part according to the jig frame positioning coordinates determined by dividing the steel main beam unit sections, pouring a C30 concrete foundation, and installing the embedded part; s3, after the concrete strength reaches 50%, jig frame steel pipe columns are installed, top distribution beams and inter-column web members are connected, and the perpendicularity of the steel pipe columns and the jig frame top elevation are controlled; s4, steel beam sections are hoisted, and a U-shaped steel box beam is installed through a high-tonnage truck crane; s5, bridge deck slab concrete construction; and S6, welding is ended, the concrete bridge deck is constructed through the steel-concrete composite beam, finish paint is sprayed, and the jig frame is dismantled. The process from manufacturing and machining of the steel box girder to the final disassembly of the steel box girder is finely planned. And the shrinkage amount of the panel after subsequent welding is reduced, the deformation amount of the panel after welding is reduced, and the workload of correcting the steel box girder in the later period is reduced.
本发明公开了一种钢箱梁安装施工方法,属于桥梁施工领域,包括步骤:S1,加工制造钢箱梁;S2,胎架基础施工,根据钢主梁单元节段划分确定的胎架定位坐标放样胎架基础及钢管柱连接埋件位置,浇筑C30砼基础并安设预埋件;S3,待砼强度达50%后安装胎架钢管柱、顶部分配梁和柱间腹杆连接,并控制钢管柱垂直度和胎架顶部标高;S4,钢梁节段吊装,采用高吨位汽车吊安装U型钢箱梁;S5,桥面板砼施工;S6,焊接收尾、钢混组合梁施工混凝土桥面板、面漆喷涂、拆除胎架。本发明从钢箱梁的制造加工到最终的钢箱梁的拆卸等过程进行了细致规划。减少了面板在经过后续的焊接之后的收缩量,减少了面板焊接之后的变形量,减少了后期对钢箱梁进行矫正时的工作量。
Steel box girder installation construction method
一种钢箱梁安装施工方法
DI LIJIAN (author) / HE QIAN (author) / WANG YINGSEN (author) / XIONG YONGCHUAN (author) / ZHU JIANMENG (author) / LIU YU (author) / LIU XING (author) / QIANG XIN (author) / YAN ZHOUHAI (author) / CHEN LONG (author)
2025-01-21
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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