CN203821253U

CN203821253U - Holding device for broadening and splicing concrete girder bridge

Info

Publication number: CN203821253U
Application number: CN201420198744.4U
Authority: CN
Inventors: 任伟; 陈榕峰; 吕颖钊; 盖轶婷
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2014-04-18
Filing date: 2014-04-18
Publication date: 2014-09-10
Anticipated expiration: 2024-04-18

Abstract

The utility model discloses a holding device for broadening and splicing concrete girder bridge. The holding device comprises an upper beam and a lower beam which are held on the upper side and the lower side of a wet seam between a new bridge and an old bridge respectively, wherein steel plates are both fixed on the upper side and the lower side of the upper beam or the lower beam; the upper beam and the lower beam are connected through screws and nuts. The holding device disclosed by the utility model is safe, reliable, easy to control in quality, low in cost, simple in method, and convenient to popularize.

Description

A kind of concrete beam bridge is widened splicing clamping device

Technical field

The utility model belongs to concrete-bridge and widens concatenation construction technical field, and what be specifically related to is that a kind of concrete beam bridge is widened splicing clamping device.

Background technology

In current highway extension project project, the key link that bridge jointing is widened work is exactly the splicing of the old and new's bridge.But the feature due to highway extension project, in whole work progress, all cannot seal the traffic of original road completely, this has carried out great difficulty to new old bridge splicing tape, especially last one critical process---wet seam is built, close traffic state is not poured into a mould wet joint concrete, due to the directly formation of the wet joint concrete intensity of impact of bridge vibration of beam (changing of the relative positions of the old and new's structure).

Utility model content

The utility model object is to provide a kind of for highway extension project, carries out bridge widening concatenation construction concrete beam bridge and widen splicing clamping device in the situation that of close traffic not, and it can solve existing problem in background technology effectively.

In order to solve existing problem in background technology, it comprises top rail and the lower transverse beam that is clamped in new bridge and the upper and lower both sides of the wet seam crossing of old bridge, the both sides up and down of described top rail or lower transverse beam are all fixed with steel plate, between described top rail and lower transverse beam, by screw rod, are connected with nut.

Between described nut and steel plate, be provided with backing plate.

Owing to having adopted above technical scheme, the utlity model has following beneficial effect: safe and reliable, quality is easy to control, and cost is low, and method is simple, is convenient to promote.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model, below in conjunction with accompanying drawing, embodiment is briefly described.

Fig. 1 is mounting structure schematic diagram of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is stereogram of the present utility model;

Fig. 4 is local mounting structure schematic diagram of the present utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, the accompanying drawing below in conjunction with in the utility model embodiment, is clearly and completely described the technical scheme in the utility model embodiment.

Referring to Fig. 1-4, this specific embodiment is to be achieved by the following technical solutions, it comprises top rail 1 and the lower transverse beam 2 that is clamped in new bridge and the upper and lower both sides of the wet seam crossing of old bridge, the both sides up and down of described top rail 1 or lower transverse beam 2 are all fixed with steel plate 3, between described top rail 1 and lower transverse beam 2, by screw rod 5, be connected with nut 4, diameter is not less than 28mm, the box-structure that utilizes channel-section steel 1 mirror set to be made into, the powerful resistance to tension of the bending resistance that its cross section is good and screw rod 5 clamps the old and new's bridge girder, reach the object of carrying out the old and new's Bridge Concatenation Construction and guaranteeing good splicing effect under the state that is open to traffic.

Between described nut 4 and steel plate 3, be provided with backing plate 6.

Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. a concrete beam bridge is widened splicing clamping device, it is characterized in that it comprises top rail and the lower transverse beam that is clamped in new bridge and the upper and lower both sides of the wet seam crossing of old bridge, the both sides up and down of described top rail or lower transverse beam are all fixed with steel plate, between described top rail and lower transverse beam, by screw rod, are connected with nut.

2. a kind of concrete beam bridge according to claim 1 is widened splicing clamping device, it is characterized in that being provided with backing plate between described nut and steel plate.