Rapid installation closure construction method for steel beam bolting closure section splice plate

Abstract

The invention discloses a rapid installation closure construction method for a steel beam bolting closure section splice plate. A hinge device is positioned firstly, and then the splice plate is installed on a closure section beam body through the hinge device so that the needed splice plate is temporarily fixed in the end surface of the closure section beam body before the closure section beam body is hoisted, and the hoisting safety is effectively guaranteed; hoisting operation is convenient, during closure, temporary fixation is removed firstly, then the splice plate is directly rotated to the position, to be connected, outside the end surface of the closure section beam body to the closure section beam body and the installed beam section, then the splice plate is fixed through bolts, closure of the installed beam section and the closure section beam body is completed, and repositioning during closure is not needed; and the splicing plate does not need to be hoisted outside the closure section beam body, the construction difficulty of splice plate construction of the closure section beam body and the installed beam section at a high altitude can be reduced, the efficiency can be improved in the construction process of splice plate construction of the closure section beam body and the installed beam section, the construction period is shortened, and the construction safety risk is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a construction method for fast installation and closure of splicing plates for steel beam bolt joints. Background technique [0002] With the development of the times, steel structures are widely used in the construction industry due to their light weight, large bearing capacity, and short construction period. During the closing installation process of steel girder erection, generally the splicing plate is placed on the inner side of the beam body of the closing section in advance. The splicing panels are slowly dragged and positioned continuously to make them reach the designated position for fixed construction. This construction method of dragging the splicing plate to the designated position is carried out at high altitude and after the beam body of the closing section is aligned with the installed beam section. Inside the beam body of the closing section, the inte...

AI Technical Summary

Problems solved by technology

This construction method of dragging the splicing plate to the designated position is carried out at high altitude and after the beam body of the closing section is aligned with the installed beam section. Inside the beam body of the closing section, the internal splicing plate is lifted to a height by a chain hoist, and then The construction personnel drag the splicing plate to the corresponding connection position of the splicing plate, and then adjust the splicing plate so that the screw holes on the splicing plate correspond to the screw holes on the beam body of the closing section and the screw holes on the installed beam section. Drag the splicing plate outside the beam body of the closing section, and match the screw holes on the external splicing plate to the screw holes on the beam body of the closing section and the screw holes on the installed beam, and then connect the closing plate through the external splicing plate and the internal splicing plate The section beam body and the installed beam section are connected by bolts. The whole adjustment process needs to constantly position and adjust the position of the inner splice plate and the outer splice plate, which is very complicated, so that the splice plate connects the closed section beam body and the installed beam section at high altitude. The work efficiency is low and the construction period is long. At the same time, due to the narrow space in the box, the harsh operating environment for personnel, and the large number and weight of splicing panels, the construction safety risk is relatively large.

The existing technology is difficult to ensure the safe and efficient installation of the splicing panels of the beam body of the closing section, so as to realize the fast closing alignment of the beam body of the closing section

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