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Assembling method for large steel beam sections of three-main-truss box-truss combined structure
The invention discloses a method for assembling large steel beam sections of a three-main-truss box-truss combined structure, which comprises the following steps of: arranging a jig frame, arranging a ground sample line and an observation tower component jig frame system as an assembling foundation, arranging a middle truss, sequentially arranging lower bridge surfaces on two sides, sequentially assembling side trusses and an upper bridge surface, and assembling the large steel beam sections of the three-main-truss box-truss combined structure. In the building process, a total station is used for positioning to ensure the assembly precision, and a steel wire rope and a pulling and pressing rod are matched to provide better support for a lower bridge floor block body and a truss; according to the method, the gantry crane is matched with the three-way hydraulic jack, so that the lower bridge floor block body and the trusses can be accurately and finely adjusted and positioned, rapid and accurate positioning is facilitated, the lower bridge floor block body and the trusses can be better supported in cooperation with the steel wire ropes and the tension and compression rods, a stable foundation is provided for subsequent splicing, and safety is improved; the total station or the theodolite is combined with the ground sample line and the observation tower, so that precise positioning can be provided, and the assembly precision is improved.
本发明公开了一种三主桁箱桁组合结构钢梁大节段的组拼方法,通过设置胎架、设置地样线和观测塔构件胎架系统作为组拼基础,先布置中间桁架,再依次设置两侧下桥面,再顺次装配侧边桁架和上桥面,搭建过程中通过全站仪进行定位确保装配精度,配合钢丝绳和拉压杆对下桥面块体以及桁架能够提供更好的支撑;采用上述方法通过门吊配合三向液压千斤顶能够有对下桥面块体以及各桁架进行精确微调定位,方便快速准确的定位,配合钢丝绳和拉压杆对下桥面块体以及桁架能够提供更好的支撑,为后续拼接提供稳固基础,提高安全性;通过全站仪或经纬仪结合地样线以及观测塔能够提供精准定位,提高装配精度。
Assembling method for large steel beam sections of three-main-truss box-truss combined structure
The invention discloses a method for assembling large steel beam sections of a three-main-truss box-truss combined structure, which comprises the following steps of: arranging a jig frame, arranging a ground sample line and an observation tower component jig frame system as an assembling foundation, arranging a middle truss, sequentially arranging lower bridge surfaces on two sides, sequentially assembling side trusses and an upper bridge surface, and assembling the large steel beam sections of the three-main-truss box-truss combined structure. In the building process, a total station is used for positioning to ensure the assembly precision, and a steel wire rope and a pulling and pressing rod are matched to provide better support for a lower bridge floor block body and a truss; according to the method, the gantry crane is matched with the three-way hydraulic jack, so that the lower bridge floor block body and the trusses can be accurately and finely adjusted and positioned, rapid and accurate positioning is facilitated, the lower bridge floor block body and the trusses can be better supported in cooperation with the steel wire ropes and the tension and compression rods, a stable foundation is provided for subsequent splicing, and safety is improved; the total station or the theodolite is combined with the ground sample line and the observation tower, so that precise positioning can be provided, and the assembly precision is improved.
本发明公开了一种三主桁箱桁组合结构钢梁大节段的组拼方法,通过设置胎架、设置地样线和观测塔构件胎架系统作为组拼基础,先布置中间桁架,再依次设置两侧下桥面,再顺次装配侧边桁架和上桥面,搭建过程中通过全站仪进行定位确保装配精度,配合钢丝绳和拉压杆对下桥面块体以及桁架能够提供更好的支撑;采用上述方法通过门吊配合三向液压千斤顶能够有对下桥面块体以及各桁架进行精确微调定位,方便快速准确的定位,配合钢丝绳和拉压杆对下桥面块体以及桁架能够提供更好的支撑,为后续拼接提供稳固基础,提高安全性;通过全站仪或经纬仪结合地样线以及观测塔能够提供精准定位,提高装配精度。
Assembling method for large steel beam sections of three-main-truss box-truss combined structure
一种三主桁箱桁组合结构钢梁大节段的组拼方法
ZHANG YAJUAN (Autor:in) / XUE HONGQIANG (Autor:in) / ZHU XINHUA (Autor:in) / ZHANG HONGWEI (Autor:in)
04.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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