CN202466414U

CN202466414U - Large-segment steel box girder matching bracket structure

Info

Publication number: CN202466414U
Application number: CN 201120554551
Authority: CN
Inventors: 王紫超; 郭劲
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-10-03
Anticipated expiration: 2021-12-27

Abstract

The utility model discloses a large-segment steel box girder matching bracket, which is used as a position adjusting structure after a large beam is lifted, wherein an adaptive front support of the bracket is fixed on a mounted bridge section; an adaptive rear support is fixed on a bridge section to be mounted; the position adjusting structure is arranged on the adaptive front support; the bracket structure is welded with the adaptive rear support into a whole and is supported against the position adjusting structure; the bracket structure is hinged with a steel box girder; the position of the bracket placed on the front support can be accurately adjusted by adjusting a three-way position adjusting jack on the adaptive front support; and the steel box girder suspended on the three-way position adjusting jack can be accurately positioned through the three-way position adjusting jack. The large-segment steel box girder matching bracket structure is convenient to mount and easy and quick to disassemble and can be repeatedly used.

Description

Big sections steel case beam coupling bracket structure

Technical field

The utility model relates to the bridge construction apparatus field, refers to a kind of positioning coalignment to big sections steel case beam particularly.

Background technology

Along with the development of Steel Continuous Box beam bridge beam technology, bridge span is increasing, and steel box girder segment length is more and more longer, for accelerating construction progress, generally adopts big sections steel box girder integral hoisting technology.But the accurate positioning coupling after steel case beam has lifted is the problem that must face, and the positioning matching structure of some small-sized steel case beams was for hanging the leg structure in the past, and the one of which end is welded on the steel case beam to be installed; Other end overlap joint is on existing steel case beam; Its shortcoming is that the local load of steel case beam is excessive, and the local stiffening workload is big, and the result makes the local stiffness of permanent structure excessive; Influence the application life of permanent structure; So it is applicable to the sections steel case beam that load is little, and for big sections steel case beam, researching and developing a cover positioning matching structure again is urgent problem.

The utility model content

The purpose of the utility model be exactly to provide a kind of easy for installation, the dismounting simple and fast, can satisfy big sections steel case beam accurately transpose the coupling device.

For realizing above-mentioned purpose; The positioning coalignment that the big sections steel case beam coupling bracket structure that the utility model designed can be used as after the big sections steel case beam lifting uses; Comprise the preceding bearing of self adaptation, self adaptation rear support, bracket structure, positioner, bearing is fixed on and installs on the bridge section before the said self adaptation, and said self adaptation rear support is fixed on the bridge section to be installed; Said positioner is arranged on the preceding bearing of self adaptation; Said bracket structure is supported on the positioner, is welded into integral body with the self adaptation rear support, and is articulated and connected with bridge section to be installed.

Further, said bracket structure is welded to one another by bracket hanger, bracket extension leg and bracket case beam and forms, and said bracket is hung leg in bracket case beam both sides, and said bracket hanger is at the middle part of bracket structure.And be fixedly connected through bearing pin with steel case beam hanger on the bridge section to be installed.

Further, said bracket case beam is four thin web plate box-beam structures, and web is corresponding one by one with the bracket hanger.

Said positioner is made up of positioning jack and sliding shoe; The positioning jack is divided in length and breadth to jack and vertical jack; Said in length and breadth before the jack level is shelved on self adaptation on the bearing, said vertical jack vertically is placed on the convex of bearing before the self adaptation, and said sliding shoe is arranged on the top board of bearing before the self adaptation; Be covered with the slip medium before said sliding shoe and the self adaptation in the middle of the bearing, said sliding shoe top is shelved with rubber mat plate.

The advantage of the utility model is: easy for installation, the dismounting simple and fast of big sections steel case beam coupling bracket structure that the utility model designed, and it is practical to repeat turnover; But bearing and self adaptation rear support are adjusted the bearing area in real time through the gradient of the adjustment self adaptation steel case beam of web height before the self adaptation that is designed, and reach the purpose that reduces steel case beam local stress; The positioning jack that positioner is provided with can satisfy three-dimensional positioning function, and its aligning precision can reach 1mm, and makes seat structure compact; The slip medium place that is provided with between sliding shoe and the preceding bearing because the difference of friction factor size, can be automatically the slide plane of structure as a whole, reduce the nominal load of the jack of transposing as far as possible; Four thin fu jie structures of bracket case beam, its web is corresponding one by one with the bracket hanger, has guaranteed structure stress.

Description of drawings

Fig. 1 is big sections steel case beam coupling bracket structure general arrangement schematic

Fig. 2 is big sections steel case beam coupling bracket structure lateral view

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.

Like Fig. 1, shown in Figure 2; The bearing part of the big sections steel case beam coupling bracket structure that the utility model designed is made up of bearing before the self adaptation 1 and self adaptation rear support 8; Adjustment that can be through web height and the gradient of self adaptation steel case beam; The base plate of bearing 1 is fixed on the mounting rail section through interim limiting plate 9 before the self adaptation, and the base plate of self adaptation rear support 8 is fixed on the beam section to be installed through interim limiting plate 9; Bearing 1 level is shelved two in length and breadth to positioning jack 2,12 before the said self adaptation; The counter-force end of said jack is the convex side on the bearing 1 before the self adaptation; Piston end is sliding shoe 3 sides, vertical positioning jack 13 of vertical placement on the convex of bearing 1 before the said self adaptation; Be shelved with sliding shoe 3 on bearing 1 top board before the described self adaptation, be covered with ultra-thin slip medium in the middle of said sliding shoe 3 and the preceding bearing 1 because the difference of friction factor size, slip medium place can be automatically the slide plane of structure as a whole; Said sliding shoe 3 tops are shelved with rubber mat plate 4; Said rubber mat plate 4 tops are placed with bracket structure; Said bracket structure is welded to one another by bracket hanger 7, bracket extension leg 14 and bracket case beam 15 and forms; Said bracket is hung leg 14 in bracket case beam 15 both sides, and said bracket hanger 7 is at the middle part of bracket structure, and is fixedly connected through bearing pin with steel case beam hanger 6 on the bridge section to be installed.Because bracket structure mainly is a force transferring structure, for guaranteeing stressed needs, bracket case beam is designed to four thin web plate box-beam structures, every corresponding bracket hanger 7 of web.

The implementation step of the utility model:

One, before beam section lifting to be installed, welded case beam hanger 6;

Two, the good bracket case of assembly unit beam 15, bracket hanger 7, self adaptation rear support 8 and bracket are hung leg 14 then, and are installed on the case beam to be installed;

Three, on mounting rail section, install self adaptation successively before bearing 1, sliding shoe 3, sliding panel 10, rubber mat plate 4 and positioning jack 2,12,13;

Four, lift by crane beam section to be installed then to assigned address,, utilize this rackwork and other ancillary method that the beam section is accurately transposed according to the on-site supervision requirement.

That big sections steel case beam coupling bracket structure has is easy for installation, the dismounting simple and fast, can repeat to have enough to meet the need the characteristics of use; Three-dimensional positioning jack is set on the bearing before the self adaptation; Can accurately transpose is shelved on the bracket structure on the preceding bearing of self adaptation, can accurately locate the steel case beam of its suspention through three-dimensional positioning bracket structure.

Through designs simplification, big sections steel case beam coupling bracket structure equally also satisfies the use needs of little section box girder positioning.

The above embodiment has only expressed a kind of embodiment of the utility model, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.

Claims

1. one kind big sections steel case beam matees bracket structure; Comprise the preceding bearing of self adaptation, self adaptation rear support, bracket structure, positioner, it is characterized in that: bearing is fixed on and installs on the bridge section before the described self adaptation, and said self adaptation rear support is fixed on the bridge section to be installed; Said positioner is arranged on the preceding bearing of self adaptation; Said bracket structure is supported on the positioner, is welded into integral body with the self adaptation rear support, and said bracket structure and bridge section to be installed are articulated and connected.

2. big sections steel case beam coupling bracket structure according to claim 1; It is characterized in that: said bracket structure is welded to one another by bracket hanger, bracket extension leg and bracket case beam and forms; Said bracket is hung leg in bracket case beam both sides, and said bracket hanger is at the middle part of bracket structure.

3. big sections steel case beam coupling bracket structure according to claim 2, it is characterized in that: said bracket hanger is fixedly connected through bearing pin with the steel case beam hanger of bridge section to be installed.

4. big sections steel case beam coupling bracket structure according to claim 1; It is characterized in that: said positioning structure is made up of positioning jack and sliding shoe; Said positioning jack is divided in length and breadth to jack and vertical jack; Said in length and breadth before the jack level is shelved on self adaptation on the bearing, said vertical jack vertically is placed on the convex of bearing before the self adaptation, and said sliding shoe is arranged on the top board of bearing before the self adaptation; Be covered with the slip medium in the middle of said sliding shoe and the preceding bearing, said sliding shoe top is shelved with rubber mat plate.