CN107386118A - A kind of suspension apparatus and guider for the decentralization installation of large-scale steel jacket box - Google Patents

Abstract

The invention relates to the field of lowered installation and construction of steel casings, in particular to a suspension device and guiding device for the lowered installation of large steel casings. It has a suspension device and a guide device, the suspension device has a continuous jack, a suspension steel strand is connected to the continuous jack, and a load-bearing beam is arranged under the continuous jack, and the guide device includes a pile foundation steel casing arranged under the load-bearing beam. The left side of the steel casing of the pile foundation is provided with a concentric wall-attached arc-shaped plate, and a concentric interval is formed between the pile foundation steel casing and the concentrically-attached arm arc-shaped plate, and the left side of the concentric wall-attached arc-shaped plate is connected with a steel casing The bottom plate and the top plate on the inner wall are connected with an anchor backing plate under the bottom plate, a connecting plate arranged on the bottom plate above the anchor backing plate, and a web is also provided between the concentric wall-adhering arc plate and the inner wall of the steel box. The invention has the advantages of simple structure, convenient blanking and processing, high utilization rate of raw materials, green and environment-friendly construction, low construction difficulty, and joint processing and installation with the steel sleeve box to improve construction efficiency.

Description

A suspension device and guide device for the lowering installation of a large steel box

Technical field:

The invention relates to the field of lowered installation and construction of steel casings, in particular to a suspension device and guiding device for the lowered installation of large steel casings.

Background technique:

With the widespread construction of highways, railways, municipal bridges and other bridge projects in my country, the positioning and lowering of large steel casings have become key technical control points for cross-sea and cross-river projects. In order to ensure the accurate positioning and lowering installation of the steel casing, it is necessary to set lowering suspension devices and guiding devices in all directions of the casing. The main suspension device and guide device of the traditional large-scale steel casing are installed separately, so there is more waste of steel, the construction workload is large, the construction convenience is poor, and the construction progress is slow.

Therefore, it is necessary to optimize the settings of the suspension device and the guide device to achieve the goals of reducing construction difficulty, improving construction safety, reducing construction workload, improving construction convenience, speeding up construction progress, saving material use, and reducing environmental pollution.

Invention content:

The technical problem to be solved by the present invention is to provide a suspension device and guide device for the lowered installation of large steel casings with high construction efficiency, simple structure and high material utilization rate.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical proposals: a suspension device and guide device for the installation of a large steel casing, which has a suspension device and a guide device, and the suspension device has a continuous jack , the continuous jack is connected with a suspension steel strand, a load-bearing beam is arranged under the continuous jack, and the guide device includes a pile foundation steel casing arranged under the load-bearing beam, and the left side of the pile foundation steel casing is A concentric wall-attached arc-shaped plate is provided, and a concentric interval is formed between the pile foundation rigid casing and the concentric wall-attached arc-shaped plate. The left side of the concentric wall-attached arc-shaped plate is connected with a bottom plate and a top plate, and the bottom plate and the top plate The left side leans against the inner wall of the steel sleeve box. An anchor backing plate is connected under the bottom plate, and a connecting plate is arranged on the bottom plate above the anchor backing plate. There are also webs.

As a preference, the steel casing of the pile foundation is provided with load-bearing corbels and counter-pressure corbels for fixing to the load-bearing beam, and the arrangement of the load-bearing corbels and counter-pressure corbels can effectively strengthen the load-bearing beam to the steel casing. support, thereby improving the safety of the lowering of the steel box.

Preferably, the load-bearing corbel is welded on the left side of the steel casing of the pile foundation, and the counter-pressure corbel is welded on the right side of the steel casing of the pile foundation.

Preferably, the load-bearing beams are symmetrically arranged at the front and rear ends of the steel casing of the pile foundation, and the number is two. The symmetrical arrangement can improve the stability of the overall structure, thereby improving the construction efficiency under the steel casing.

Compared with the prior art, the present invention has the advantages of simple structure, convenient blanking and processing, high utilization rate of raw materials, and green construction; low construction difficulty, and can be processed and installed together with steel casings to improve construction efficiency; Installation, reduce on-site construction at the bridge site, reduce safety risks; reduce damage to steel casings, improve overall construction quality; reduce the number of suspension devices and guide devices for lowering, reduce engineering quantities, and save costs.

Description of drawings:

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic view of the top view structure of the present invention;

Figure 3 is a schematic diagram of the installation structure of the load-bearing beam.

In the figure: 1. Anchor backing plate; 2. Bottom plate; 3. Web plate; 4. Connecting plate; 5. Concentric arc-shaped plate attached to the wall; 6. Top plate; ; 9, anti-pressure corbel; 10, load-bearing corbel; 11, load-bearing beam; 12, continuous jack; 13, suspension steel strand.

detailed description:

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of suspension device and guide device used for the installation of large-scale steel box under the ground has a suspension device and a guide device, and the suspension device has a continuous jack 12. A suspension steel strand 11 is connected to the continuous jack 12, a load-bearing beam 11 is arranged under the continuous jack 12, and the guide device includes a pile foundation steel casing 8 arranged under the load-bearing beam 11, and the pile foundation steel casing 8 is arranged below the load-bearing beam 11. The left side of the tube 8 is provided with a concentric wall-attached arc-shaped plate 5, and a concentric interval 14 is formed between the pile foundation rigid casing 8 and the concentric arm-attached arc-shaped plate 5, and the left side of the concentric wall-attached arc-shaped plate 5 is connected with The bottom plate 2 and the top plate 6, the left side of the bottom plate 5 and the top plate 6 are attached to the inner wall 7 of the steel box, the anchor pad 1 is connected under the bottom plate 2, and the anchor pad 1 is arranged on the inner side of the bottom plate 2. The connecting plate 4 is provided, and a web 3 is also provided between the concentric arc-shaped plate 5 and the inner wall 7 of the steel box.

As a preference, the pile foundation steel casing 8 is provided with a load-bearing corbel 10 and a counter-pressure corbel 9 for fixing to the load-bearing beam 11, and the load-bearing can be effectively strengthened by setting the load-bearing corbel 10 and the counter-pressure corbel 9 The beam 11 supports the steel box, thereby improving the safety of the lowering of the steel box.

Preferably, the load-bearing corbel 10 is welded on the left side of the pile foundation steel casing 8 , and the counter pressure corbel 9 is welded on the right side of the pile foundation steel casing 8 .

As a preference, the load-bearing beams 11 are symmetrically arranged at the front and rear ends of the pile foundation steel casing 8, and the number is two. The symmetrically arranged pile foundation steel casing 8 can improve the stability of the overall structure, thereby improving the construction efficiency.

Suspension device and guiding device for large-scale steel box-down installation. The positioning and lower-down installation process of large-scale steel box is as follows. Use the continuous jack 12, then fix the lower anchor point anchor plate under the anchor plate 1, pass the extruded suspension steel strand 11 through the lower anchor point anchor plate, the cantilever load-bearing beam 11, and the continuous jack for lowering. 12. Adjust the continuous jack 12 for lowering the steel casing everywhere, and transfer the self-weight of the steel casing to the continuous jack 12 for lowering, the cantilever load-bearing beam 11 and the pile foundation steel casing 8 through the present invention, and use the concentric interval 14 in the present invention to carry out The positioning and guidance of the lowering installation process will be completed until the lowering of the steel box is completed.

It should be emphasized that: the above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are valid. Still belong to the scope of the technical solution of the present invention.

Claims (4)

1. a kind of suspension apparatus and guider for the decentralization installation of large-scale steel jacket box, there is suspension apparatus and guider, It is characterized in that：The suspension apparatus has continuous jack（12）, the continuous jack（12）On be connected with suspention steel twist Line（13）, the continuous jack（12）Lower section is provided with spandrel girder（11）, the guider is including being arranged on spandrel girder（11） The pile foundation steel pile casting of lower section（8）, the pile foundation steel pile casting（8）Left side is provided with concentric adherent arc（5）, the firm casing of pile foundation （8）With concentric patch arm arc（5）Between form concentric spacing（14）, the adherent arc with one heart（5）Left side is connected with bottom Plate（2）And top plate（6）, the bottom plate（2）And top plate（6）Left side abuts in steel bushing chamber interior wall（7）On, the bottom plate（2）Lower section It is connected with anchor plate（1）, the anchor plate（1）Top, which has, is arranged on bottom plate（2）The connecting plate of inner side（4）, the patch with one heart Wall arc（5）With steel bushing chamber interior wall（7）Between be additionally provided with web（3）.

2. the suspension apparatus and guider according to claim 1 for the decentralization installation of large-scale steel jacket box, its feature exists In：The pile foundation steel pile casting（8）It is provided with for realization and spandrel girder（11）Fixed load-bearing bracket（10）With back-pressure bracket （9）.

3. the suspension apparatus and guider according to claim 2 for the decentralization installation of large-scale steel jacket box, its feature exists In：The load-bearing bracket（10）It is welded on pile foundation steel pile casting（8）Left side, back-pressure bracket（9）It is welded on pile foundation steel pile casting（8）It is right Side.

4. the suspension apparatus and guider according to claim 1 for the decentralization installation of large-scale steel jacket box, its feature exists In：The spandrel girder（11）It is symmetricly set on pile foundation steel pile casting（8）Rear and front end, quantity be 2.