Method for manufacturing ear-plate pin hinged-connection structure of stayed-cable bridge

The invention relates to a cable-stayed bridge ear plate and a manufacturing method technology, which is applied to the manufacture of steel structure bridges and the field of bridge construction. cost effect

Inactive Publication Date: 2007-11-21
CHINA RAILWAY BAOJI BRIDGE GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The angle of the lug plate slope and the web constitutes the angle of the stay cables along the bridge width direction, which changes with the position of the stay cables, and the

Method used

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  • Method for manufacturing ear-plate pin hinged-connection structure of stayed-cable bridge
  • Method for manufacturing ear-plate pin hinged-connection structure of stayed-cable bridge

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Experimental program
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Embodiment Construction

[0015] In the present invention, the lug pin-hinge connection structure of the cable-stayed bridge is manufactured according to the following process steps:

[0016] ① The lug plate, plywood and web plate are precisely cut and blanked by CNC cutting machine, and the lug plate components are used for Z-direction ultrasonic flaw detection; and the connecting holes of the stay cables are pre-cut. Drill 8-φ process small holes on the lug plate; drill 4-φ process small holes on the plywood (the extreme side holes of the hole group should be selected); draw the vertical and horizontal reference lines on the scribing platform for the web, Rib assembly line, diaphragm position line. Weld plate ribs and connecting plates according to the line. After trimming, take the longitudinal baseline and the assembly position line of the transverse partition at the ear plate as the reference, drill 8-φ process holes, and the positions correspond to the process holes of the ear plates and splints....

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Abstract

The invention is concerned with produce method of ear plate, web unit, high strength bolt connecting hole and inclined plane to cable-stayed bridge ear plate pin-hinge connection with steel structure bridge. Take numerical control milling machine to machining the inclined plane of plywood and ear plate, and the disposal of ear plate, web and bolt connecting hole of plywood is digging pinhole at first and machining the inclined plane of plywood and ear plate, then locate ear plate, web and plywood with bolt tightly. Drill on level ear plate with drill and numerical control drill press, locate in the pinhole with locating pin, remove the locating rushing nail and bolt to enlarge the hole to the designed diameter of hole. It solves the un-vertical problem between web hole and web plane by drilling process holes on ear plate, web and plywood respectively and assembly into overall drilling hole. It assures the connecting precision of high strength bolt and the designed angle of ear plates to increase the produce efficiency and save the cost.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, in particular to the technical field of manufacturing steel structure bridges. Background technique [0002] The connection forms between the stay cables and the steel box girder in the cable-stayed bridge include the anchor box connection, the anchor pipe connection and the lug-pin-hinge connection, and the lug-pin-hinge connection structure is simple in structure and easy to control in quality, and at the same time avoids the The welding of a large number of dense welds has great promotion value. The lug plate is the connecting part of the cable-stayed cable and the steel box girder in the cable-stayed bridge, and is the main force-transmitting part of the bridge. The angle of the lug plate slope and the web constitutes the angle of the stay cables along the bridge width direction, which changes with the position of the stay cables, and the connection holes of the high-strength bol...

Claims

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Application Information

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IPC IPC(8): B23B35/00B23C3/00B23Q3/154B23P15/00E01D19/00E01D11/04
Inventor 黄鑫张秉钧钱叶祥
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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