CN201730053U

CN201730053U - Symmetric concrete casting device for box girder over water

Info

Publication number: CN201730053U
Application number: CN2010201597089U
Authority: CN
Inventors: 丁杰峰; 吴杰; 郭宏峰; 梁毓赟
Original assignee: Shanghai Construction Group Co Ltd
Current assignee: Shanghai Construction Group Co Ltd
Priority date: 2010-04-15
Filing date: 2010-04-15
Publication date: 2011-02-02
Anticipated expiration: 2020-04-15

Abstract

The utility model relates to a symmetric concrete casting device for a box girder over water. The symmetric concrete casting device comprises a concrete delivery pump and a concrete pump pipe, wherein, a large hopper and a bracket are arranged on a scow, the capacity of the large hopper is 8 cubic meters, and the height of the pump pipe can be adjusted through the bracket; the concrete pump pipe is vertically fixed on a tower body of a tower crane, and extends upwards to reach a bridge floor at a segment No.0; and the concrete pump pipe is divided into a left casting pipe and a right casting pipe through a three-way pump pipe connector, and the left casting pipe and the right casting pipe are symmetric left and right in the horizontal direction. The three-way pump pipe connector adopts a 90-degree three-way pump pipe connector. In the symmetric concrete casting device, the three-way pump pipe connector is arranged on the bridge floor, and the large hopper with the capacity of 8 cubic meters and the bracket through which the height of the pump pipe can be adjusted are arranged on the scow of 300 t. A three-way pump pipe can achieve the symmetric casting at two parts of concrete, the bracket for adjusting can adjust the position of the pump pipe when the water surface varies, and the large hopper is a measure for ensuring workability and timely supply of concrete. Therefore, the symmetric concrete casting device solves the problems that the symmetric casting at two ends of the box girder is difficult, the cost is high and so on in the Mekong river bridge engineering in Cambodia.

Description

The symmetrical on the water concreting device of case beam

Technical field

The utility model relates to a kind of building concrete and builds device, and especially a kind of case beam concreting symmetry waterborne is built device.

Background technology

Cambodia's Mekong Bridge Project is the domestic maximum cross a river bridge of Cambodia.It is striden the footpath and is combined as 30m * 6+95m+3 * 170m+95m+30m * 6.The long 1066m of bridge.Main bridge superstructure adopts single box single chamber pre-stressed box fine strain of millet, 7 meters of case fine strain of millet bottom width, 13.5 meters of top widths.The case deck-molding is carried out the transition to the deck-molding 4m of closure segment gradually by 0# piece 10.70m height.Box girder construction is except that 0# piece, closure segment, and all the other 22 sections adopt Hanging Basket symmetry cantilever pouring.The Mekong current are breathed heavily urgency, and the annual height of water is up to more than the 10m.This brings very big difficulty to construction.Case beam 0# block concrete is built and is adopted concrete mixing ship waterborne, if continue to use mixer ship waterborne, not only economic cost costliness.And in case beam two ends symmetry cast also difficulty.

Summary of the invention

The utility model is to provide a kind of case beam symmetrical on the water concreting device, is used to solve Cambodia's Mekong Bridge Project case beam two ends symmetry cast difficulty, the technical problem of expense costliness.

For achieving the above object, the technical solution adopted in the utility model is: the symmetrical on the water concreting device of a kind of case beam, comprise concrete pump, and the concrete pump line, refute and arrange that a capacity is 8m the side ³Big hopper and the carriage that can regulate pump line height, the concrete pump line is vertically fixed on the body of the tower of tower crane, and extends upwardly to the bridge floor of 0# piece, is divided into the depositing that the left and right symmetry of horizontal direction is built by the threeway pump pipe union.

The threeway pump pipe union is 90 degree threeway pump pipe unions.

Refute and be placed with loop wheel machine, concrete pump, a 200KW generator, four hoist engines the side.

The beneficial effects of the utility model are:

The utility model is refuted in 300t side and is arranged that a capacity is 8m by the threeway pump pipe union is set at bridge floor ³Big hopper and the carriage that can regulate pump line height.The threeway pump line can be divided into concrete two port and claim cast, and bracket can be adjusted the position of pump line when the water surface changes, and big hopper is to guarantee a concrete workability and a measure of supply in time.Therefore, the utility model has solved Cambodia's Mekong Bridge Project case beam two ends symmetry cast difficulty, problems such as expense costliness.

Description of drawings

Fig. 1 is the schematic diagram that big hopper is refuted in 300t side;

Fig. 2 is a symmetry cast floor map;

Fig. 3 is an A place enlarged drawing among Fig. 2;

Fig. 4 is that flat board is refuted dress small powder bucket schematic diagram.

The specific embodiment

Below in conjunction with specific embodiment, further set forth embodiment of the present utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

As Fig. 1, shown in 2, the symmetrical on the water concreting device of case beam of the present utility model comprises concrete pump, concrete pump line 4, and refute and arrange that a capacity is 8m the side ³Big hopper and the carriage that can regulate pump line height, concrete pump line 4 is vertically fixed on the body of the tower 5 of tower crane, and extends upwardly to the bridge floor of 0# piece, is divided into the depositing that the left and right symmetry of horizontal direction is built by the threeway pump pipe union.

The threeway pump pipe union is 90 degree threeway pump pipe unions.

Use the symmetrical on the water concreting technology of the utility model, may further comprise the steps:

1. case beam concrete is made on the coast

Stir in the facilities of mix storied building that the C50 concrete of case beam is provided with on the coast, put into 2m ³The little hopper of concrete;

2. water transportation

2m ³The little hopper of concrete → 5t forklift transport little hopper → 100t loop wheel machine and little hopper is hung in harbour place flat board refute (see figure 4) → tugboat and flat board is refuted sail to the 300t side that rests in the place of building and refute 1 limit → 50t loop wheel machine lifting small powder bucket material is put into a capacity is 8m ³ Big hopper 2 in (Fig. 1).

3. pumping of concrete symmetry cast

Big hopper Open valve makes concrete material that material enters in the hopper of concrete pump, the concrete pump pumping of concrete by chute 3, by the homemade threeway in 0# piece bridge floor place, with cast place that is pumped into of concrete symmetry.(seeing Fig. 2,3)

The key of whole technology of the present utility model is to be provided with the threeway pump pipe union at bridge floor, refutes in 300t side and arranges on 1 that a capacity is 8m ³ Big hopper 2 and the carriage 5 that can regulate pump line height.The threeway pump line can be divided into concrete two port and claim to pour into a mould bracket can be adjusted pump line 4 when the water surface changes position.Big hopper 2 is to guarantee a concrete workability and a measure of supply in time.Concrete pump line 4 vertical direction are fixed on the body of the tower 5 of tower crane, become horizontal direction and make the concrete symmetry be divided into two directions by tee junction by 90 degree threeway pump pipe unions to the bridge floor of 0# piece and build and see.

Refute and arrange following capital equipment 300t side:

A model SCC500D loop wheel machine, a concrete pump, a capacity are 8m ³The travel(l)ing rest of big hopper, 200KW generator, four hoist engines and a transfer pump line height.

Claims

1. the symmetrical on the water concreting device of case beam comprises concrete pump, concrete pump line (4), and refute (1) and arrange that upward a capacity is 8m the side ³Big hopper and the carriage that can regulate pump line height, it is characterized in that: described concrete pump line (4) is vertically fixed on the body of the tower (5) of tower crane, and extend upwardly to the bridge floor of 0# piece, be divided into the depositing that the left and right symmetry of horizontal direction is built by the threeway pump pipe union.

2. the symmetrical on the water concreting device of case beam according to claim 1 is characterized in that: described threeway pump pipe union is 90 degree threeway pump pipe unions.

3. the symmetrical on the water concreting device of case beam according to claim 1 is characterized in that: described side refutes and is placed with loop wheel machine, concrete pump, a 200KW generator, four hoist engines.