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Overall horizontal assembly method for box-type steel arched girder
The invention provides an overall horizontal assembly method for a box-type steel arched girder. The method comprises the steps: firstly, dividing a single-truss box girder into a plurality of sections; then, manufacturing assembly jigs, and blanking all the sections; during the assembly of the box-type steel arched girder, firstly, laying high-side web plate units, and carrying out spot welding among all the high-side web plate units so as to achieve temporary fixation; lofting locating lines, corresponding to transverse partition plate units, on the located high-side web plate units, and locating, mounting and welding all the transverse partition plate units on the high-side web plate units; lofting locating lines, corresponding to the transverse partition plate units, on top plate units of the box girder, and locating, mounting and welding the transverse partition plate units; lofting locating lines, corresponding to the transverse partition plate units, on bottom plate units of the box girder, and carrying out locating, mounting, welding and fixing on the bottom plate units of the box girder and the transverse partition plate units; lofting locating lines, corresponding to the transverse partition plate units, the box girder top plate unit locating lines and the box girder bottom plate unit locating lines on low-side web plate units of the box girder, and locating, mounting and welding the low-side web plate units of the box girder. The method has the advantages that the overall size of the box girder and the accuracy of interface butting can be excellently guaranteed, the overall strength is high, and the stability is good.
Overall horizontal assembly method for box-type steel arched girder
The invention provides an overall horizontal assembly method for a box-type steel arched girder. The method comprises the steps: firstly, dividing a single-truss box girder into a plurality of sections; then, manufacturing assembly jigs, and blanking all the sections; during the assembly of the box-type steel arched girder, firstly, laying high-side web plate units, and carrying out spot welding among all the high-side web plate units so as to achieve temporary fixation; lofting locating lines, corresponding to transverse partition plate units, on the located high-side web plate units, and locating, mounting and welding all the transverse partition plate units on the high-side web plate units; lofting locating lines, corresponding to the transverse partition plate units, on top plate units of the box girder, and locating, mounting and welding the transverse partition plate units; lofting locating lines, corresponding to the transverse partition plate units, on bottom plate units of the box girder, and carrying out locating, mounting, welding and fixing on the bottom plate units of the box girder and the transverse partition plate units; lofting locating lines, corresponding to the transverse partition plate units, the box girder top plate unit locating lines and the box girder bottom plate unit locating lines on low-side web plate units of the box girder, and locating, mounting and welding the low-side web plate units of the box girder. The method has the advantages that the overall size of the box girder and the accuracy of interface butting can be excellently guaranteed, the overall strength is high, and the stability is good.
Overall horizontal assembly method for box-type steel arched girder
LIANG HONGLIANG (author) / LI ZHENJUN (author) / YANG ZHIGANG (author) / NI BIN (author) / LI JIAN GANG (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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