Shallow groove anchorage bridge expanssion joint construction process
A construction method and technology of expansion joints, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of long construction period, unfavorable shallow groove anchoring, high cost, shorten the construction period, reduce the cost of transformation, and reduce the need for anchoring. Effect
Inactive Publication Date: 2002-03-27
陈光和
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Problems solved by technology
[0002] At present, in the construction of bridge expansion joints, it is necessary to install pre-embedded reinforcement. If there is no pre-embedded reinforcement at all, other pre-embedded reinforcement must be added, and a notch longer than the length of the anchor plate and anchor reinforcement must be excavated. The anchor plate or anchor bar is welded to it, and then the reinforced concrete is poured in the gap of the notch, the construction period is long, the cost is high, and it is not conducive to shallow groove anchoring
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[0024] Stake out the part where the bridge needs to be provided with joints, cut out the notch with the required width, that is, the step surface 1 on both sides, remove the structures in the notch and clean the debris in the gap, and smooth and inspect the bottom surface. According to the reserved hole position of the beam body 3, drill a hole 6 on the bottom structure of the two step surfaces 1, insert the screw sleeve 7 and the screw rod 8 of the expansion bolt, pour epoxy cement slurry, and evenly coat the bottom of the two step surfaces 1 at the same time. Brush the adhesive 9, reserve the opening 5 gaps according to the temperature conditions at that time, and have or weld the expansion device 2 with the bottom edge in place, penetrate the washer and the nut 10 on the screw rod 8 and tighten, and connect the beam body 3 with the nut 10. The prepared high-strength concrete 11 is poured in the gap between the reserved notches, and the traffic can be opened after proper heal...
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The present invention relates to a shallow-channel anchored bridge expansion joint construction method, including the following steps: cutting stepped faces on both sides of place where the bridge expansion joint can be set respectively and making surface treatment; respectively drilling a group of holes on the anchoring positions of two side beam bodies of expansion device to be placed and on correspondent positions of two stepped faces; inserting all the bolt sleeve of two groups of expansion bolt and screw bolts into the all correspondent holes of two stepped faces, injecting epoxy cement grout and uniformly applying adhesive on the surfaces of two stepped faces; making all the anchoring holes of two side beam bodies of expansion device one-to-one pass into and cover-mounted on the allscrew bolts of expansion bolts, tighting washers and nuts, filling high-strength concrete into the cavity between two side beam bodies of expansion device and one side of correspondent stepped face so as to make the beam bodies of expansion device and bridge building body joined into one body, at the same time effectively two groups of expasion bolts can be closed in its interior.
Description
technical field [0001] The invention relates to a construction method of bridge expansion joints. Background technique [0002] At present, in the construction of bridge expansion joints, it is necessary to install pre-embedded reinforcement. If there is no pre-embedded reinforcement at all, other pre-embedded reinforcement must be added, and a notch longer than the length of the anchor plate and anchor reinforcement must be excavated. The anchor plate or the anchor bar is welded to it, and then the reinforced concrete is poured in the gap of the notch, the construction period is long, the cost is high, and it is not conducive to shallow groove anchoring. Contents of the invention [0003] The object of the present invention is to solve the above problems, and propose a shallow groove anchored bridge expansion joint construction method that is short in construction period, low in cost, and beneficial to shallow groove anchorage. [0004] Technical solution of the present ...
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IPC IPC(8): E01D19/06
Inventor 陈光和
Owner 陈光和