A construction technique for steel girder welding
A construction process and technology of steel beams, applied in the field of bridge construction, can solve the problems of easy falling of welding slag on the body, inconvenient operation, low welding efficiency, etc., and achieve the effect of easy welding quality, easy grasping and improving efficiency.
Active Publication Date: 2022-01-07
BEIJING MUNICIPAL CONSTR +1
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Problems solved by technology
[0004] When the staff is welding between the bottom plate and the partition, the staff needs to enter the inside of the steel beam, and weld the space between the partition and the top plate by overhead welding. Due to the heavy workload, during the welding process, the personnel are always in the In the upward welding state, it is inconvenient to operate, the welding efficiency is low, and the welding slag during the welding process is easy to fall on the body, which is likely to cause safety hazards
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Embodiment Construction
[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0037] A construction technique for steel girder welding, such as figure 1 As shown, its construction process includes the following steps:
[0038]Step 1: Mold erection, such as figure 2 As shown, choose a flat assembly site, and set up several molds 1 at intervals on the ground to support the steel beams; erect the mold 1 with a 20mm thick steel plate as the base, and use 14B# grooves for the columns and cross arms steel.
[0039] Step 2: Position the top plate as image 3 As shown, the staff determines the size of the top plate 21 according to the design requirements of the steel beam, and welds several steel plates to form the required size of the top plate 21, and then lifts the top plate 21 above the mold 1 with the assistance of a crane, so that the top plate 21 It is stably supported on several molds 1, and the welding surface of the top plate 21...
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The invention relates to a construction process of steel girder welding, which relates to the field of bridge construction. The construction process mainly includes the following steps: erecting the mold, positioning the top plate, positioning welding of the partition plate, positioning welding of the middle web, positioning welding of the lower strip rib, The fixed welding of the vertical stiffener of the web, the positioning welding of the side web, the positioning welding of the sealing plate, the positioning and fixing of the upper strip rib, the preliminary fixing of the bottom plate positioning, the turning of the beam body, the welding of the bottom plate, and the cutting of the lifting lug; through the above steps, the steel The beam is turned over to simplify the welding state of the staff, so as to reduce the difficulty of welding and speed up the welding efficiency.
Description
technical field [0001] The invention relates to the field of bridge construction, in particular to a construction technique for welding steel girders. Background technique [0002] The steel girder of the bridge body, as the name suggests, is made of steel structure to form a beam body. The existing bridge body steel girder covers "cover girder" and "box girder". The cover beam refers to the beam set on the top of the bent pile pier for supporting, distributing and transmitting the load of the superstructure. Also known as hat beam. Reinforced concrete or less-reinforced concrete crossbeams are set on bridge piers (platforms) or row piles. The main function is to support the superstructure of the bridge and transfer all loads to the substructure. Some bridge piles are directly connected to the cover beam, and some bridge piles are connected to the column and then connected to the cover beam. Among them, steel box girder, also known as steel plate box girder, is a common...
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IPC IPC(8): B23K31/02B23K37/04E01D21/00E01D101/30
CPCB23K31/02B23K37/0426E01D21/00E01D2101/30
Inventor 田延华王宁白伟陈聪杨帆张冰刘召东杨俊涛孔恒马少军武赛男王潇赛杨在锐屈秒娟张兴李会亮董岩解超刘健李强任志海
Owner BEIJING MUNICIPAL CONSTR