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Spatial panel point structure of steel truss and web PC (poly carbonate) combined bridge and construction method of spatial panel point

A technology of space joints and steel trusses, applied in bridge construction, bridges, bridge parts, etc., can solve problems such as non-perpendicularity between truss web steel pipes and embedded slabs, welding residual stress and stress concentration, complex joint structures, etc., to reduce on-site The effect of construction workload, large shear bearing capacity, and no need for post-maintenance costs

Active Publication Date: 2013-08-14
SHENZHEN BRIDGE DOCTOR DESIGN & RES INSTITUDE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a steel truss web PC composite bridge space node structure, which can solve the problems that the truss web steel pipe is not perpendicular to the embedded plate, the force is poor, the node structure is complicated, and there are welding residual stress and stress concentration phenomenon

Method used

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  • Spatial panel point structure of steel truss and web PC (poly carbonate) combined bridge and construction method of spatial panel point
  • Spatial panel point structure of steel truss and web PC (poly carbonate) combined bridge and construction method of spatial panel point
  • Spatial panel point structure of steel truss and web PC (poly carbonate) combined bridge and construction method of spatial panel point

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Effect test

Embodiment 1

[0029] Such as Figure 1 to Figure 3 As shown, a steel truss web PC composite bridge space node structure, the concrete at the node is embedded with pre-embedded panels, the pre-embedded panels are connected with two truss-web steel pipes 3, and the clamping of two truss-web steel pipes 3 The angle is 90°. The pre-embedded plate includes two welded rectangular steel plates 1 and at least two triangular stiffened steel plates 2, the triangular stiffened steel plates 2 are welded to the inner side of the rectangular steel plates 1, and the angle between the two rectangular steel plates 1 is 90°. The ends of the two truss-web steel pipes 3 are welded to the outer surfaces of the two rectangular steel plates 1 respectively. There is a positioning inner conduit 5 in the end of the truss web steel pipe 3, and the positioning inner conduit 5 is also welded with the rectangular steel plate 1, and the positioning inner conduit 5 plays a positioning role. After calculation, it is dete...

Embodiment 2

[0034] Such as Figure 4 with Figure 5 As shown, a steel truss web PC composite bridge space node structure, the concrete at the node is embedded with pre-embedded panels, and the embedded panels and the PBL stiffening plate 9 outside the concrete (referring to the open-hole stiffening plate, PBL stiffened plate for short, the same below) is connected with two truss web steel pipes 6, the embedded plate includes PBL shear connector 7 and multiple PBL vertical and horizontal stiffeners 8, the top panel 10 of PBL shear connector 7 is Plane steel plates, the top panel 10 of the PBL shear connector 7 is flush with the top surface of the concrete, the PBL vertical and horizontal stiffeners 8 are welded to one side of the top panel 10 of the PBL shear connector 7, and the end of the truss web steel pipe 6 is connected to the The other side of the top panel 10 of the PBL shear connector 7 is welded, and the angle between the two truss web steel pipes 6 is

[0035] 90°, the PBL sti...

Embodiment 3

[0038] Such as Image 6 with Figure 7 As shown, a steel truss web PC composite bridge space node structure, the concrete at the node is embedded with embedded panels, and the embedded panels are connected with semicircular stiffeners 13 located outside the concrete, and the semicircular stiffeners The plate 13 is connected with two truss-web steel pipes 12. The embedded plate includes a PBL shear connector 14 and multiple PBL vertical and horizontal stiffeners 15. The top panel 16 of the PBL shear connector 14 is a flat steel plate, and the PBL shear The top panel 16 of the connector 14 is flush with the top surface of the concrete, the PBL vertical and horizontal stiffeners 15 are welded to one side of the top panel 16 of the PBL shear connector 14, and the semicircular stiffener 13 and the PBL shear connector 14 are welded together. The other side of the top panel 16 is welded, the end of the truss web steel pipe 12 is welded to the semicircular stiffener 13, the angle bet...

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Abstract

The invention relates to a spatial panel point structure of a steel truss and web PC (poly carbonate) combined bridge and a construction method of the spatial panel point. An embedded plate is embedded in concrete at a panel point of the spatial panel point structure of the steel truss and web PC combined bridge and connected with two steel truss and web pipes forming a 90-degree include angle and comprises two welded-together rectangular steel plates and at least two triangular reinforced steel plates, the triangular reinforced steel plates are welded to the inner sides of the rectangular steel plates forming a 90-degree included angle, and ends of the two steel truss and web pipes are respectively welded to the outer sides of the two rectangular steel plates. By the spatial panel point structure of the steel truss and web PC combined bridge, the problem about stress concentration and single function can be sufficiently solved.

Description

[0001] technical field [0002] The invention relates to a node structure of a steel truss web PC composite bridge and a construction method thereof. [0003] Background technique [0004] The joints used in the current steel truss-web PC composite bridges are mainly to embed horizontal embedded parts on the concrete surface of the top and bottom slabs, and use the steel plate on the top surface of the embedded parts to weld the truss-web steel pipes. For example, the Chinese invention patent with application number 201010573787.2 discloses a steel sheathed steel truss web node structure, where two truss web steel pipes, horizontal steel plates and oblique steel sheaths are arranged at the node; the horizontal steel plates and The top plate or the bottom plate are parallel, and two elliptical holes are opened on the horizontal steel plate, and two oblique steel sheaths are inserted and welded in the holes; in the direction of the transverse bridge, the two truss web steel p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D21/00
Inventor 李勇张建东孙天明李敏史鸣李海
Owner SHENZHEN BRIDGE DOCTOR DESIGN & RES INSTITUDE CO LTD
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