CN201647844U - Beam lifting station without abutments - Google Patents

Abstract

The utility model relates to a beam lifting station without abutments, which belongs to the field of building construction. The beam lifting station without abutments mainly comprises a support system, a main longitudinal beam system, a horizontal beam rail system, a lifting crane and the like. The part on one side of the support system, which is parallel with the bridge site, is provided with spiral welded steel pipes, and the other side is arranged on a highway capping beam or a bridged prefabricated part by a plurality of triangular support frames. Compared with the pier crossing gantry, the beam lifting station without abutments saves floor steel pipes of one side. The main longitudinal beam and horizontal beam systems are simply reformed by an ordinary bridge girder erection machine, so the work requirements of hoisting the prefabricated part without abutments on the two sides are met. The longitudinal beam system horizontally moves through the horizontal beam rail on the capping beam or the beam body so as to realize the horizontal movement of the beam after being lifted. The beam lifting station can carry out the installation of a box beam without providing abutments on the two sides. The utility model has characteristics of small dead load in structure, high rigidity, small frontal area, fastness, stability, convenient assembly, disassembly and transportation, simple operation, low cost and the like.

Description

A kind of no abutment bale handle station

Technical field

The utility model relates to a kind of precast beam and sets up lifting means, belongs to building field, the lifting of precast beam in the time of can being used for both sides and not having abutment.

Background technology

The highway precast beam promotes and goes up bridge is that security risk is big in the highway engineering construction always, the item project that difficulty of construction is high.Generally, the first hole of precast beam install and follow-up beam body on bridge adopt dual mode, first, all adopt and stride pier gantry and lift by crane.The second, at abutment place assembly unit bridge formation machine, utilize beam transportation vehicle with the existing route in beam body edge then, be transported to bridge location and pursue the production task that the realization full-bridge is installed in the hole.But exist circuit longer for some highway bridges, segmentation construction or both sides roadbed are high embankment, and big excavation can't be realized the situation of abutment place assembly unit bridge formation machine, can only select this a kind of mode of pier gantry of striding so for use.Employing is striden pier gantry and is still had many drawbacks, at first for bridge erection when highly higher, especially surpass 20 meters after, utilize that to stride pier gantry manufacturing cost quite high, pier gantry expense of striding that general height is about 20 meters is about 4,000,000.Secondly, stride pier gantry striden the footpath to influence safety relatively poor, especially under wind effect, have the phenomenon of toppling to take place, need prudent when taking this kind mode.

Summary of the invention

The purpose of this utility model is to provide a kind of lifting highway precast beam device, has realized carrying out when both sides do not have abutment high pier precast beam and has installed, and other schemes such as pier gantry of striding of employing have been saved substantial contribution during conventional no relatively abutment construction, have improved safety factor.

To achieve these goals, the utility model proposes a kind of system that promotes no abutment precast beam, this system comprises systems such as support system, main longitudinal grider system, crossbeam rail system, lifting overhead traveling crane.Braced system is unified side and is parallel to the bridge location place and adopts spiral welded steel pipe, and opposite side then is placed on the highway bent cap or has been set up the Liang Tishang that finishes by several gusseted, and strides pier gantry and has relatively saved the supporting steel pipe that a side is landed.The main longitudinal grider system adopts common bridge formation machine to carry out simple reformation, has realized carrying out when both sides do not have abutment the job requirement that precast beam promotes.The main longitudinal grider system carries out the side travel walking by the crossbeam track of bent cap or Liang Tishang, has realized the traversing action after the beam body promotes.Main longitudinal grider and crossbeam all adopt inverted triangle truss with common bridge formation machine structural similitude as main load larrying member, and form is lightly simple and easy.During lifting, the main longitudinal grider force structure is very similar to the operating mode that the bridge formation frame is established side bar, so the safety factor height, and is light and handy practical.

The technical solution adopted in the utility model is as follows: design a kind of no abutment bale handle station, comprise two crossbeams and a longeron, two crossbeams are erected on adjacent two bridge piers respectively or have set up on the precast beam that finishes, crossbeam stretches out the bridge pier part to be supported by supporting steel pipe, the longeron frame is on two crossbeams, and crossbeam is provided with track, and longeron can move in orbit by running gear.This running gear is by being arranged on movable motor on the longeron, and gear case and change-speed box are formed.The two ends of longeron also are provided with two overhead traveling cranes.Wherein, described crossbeam and longeron all are made of truss.

The beneficial effects of the utility model are as follows: the installation of both sides highway precast beam when not having abutment can be carried out in the utility model bale handle station, structurally have from heavy and light rigidity greatly, wind area is little, firm stable, installation, dismounting, convenient transportation, characteristics such as simple to operate and expense is little.

Description of drawings

Fig. 1 is the vertical scheme drawing in the utility model bale handle station;

Fig. 2 is the horizontal scheme drawing in the utility model bale handle station.

Among the figure: 1-supporting steel pipe, 2-longeron, 3-crossbeam, 4-overhead traveling crane, 5-precast beam, 6-hoist rope, 7-highway bent cap.

The specific embodiment

Referring to accompanying drawing 1, accompanying drawing 2.

The bale handle station owner will be made up of systems such as supporting steel pipe 1, longeron 2, crossbeam 3, overhead traveling cranes 4.Longeron 2, crossbeam 3 are the English truss structure, are welded to form by last lower boom, diagonal web member and bottom lateral bracing bar.Crossbeam 3 is the aisle beam of positive English truss beam as the raising legs longeron, establishes 5 strong points under the crossbeam altogether; Longeron 2 is the inverted triangle truss, connects into integral body by electronic roller box in both sides and crossbeam track.Single longeron is selected the long 50m truss that is for use, divides 5 joints, the long 10m of every joint; Single crossbeam is selected the long 40m truss that is for use, divides 4 joints, the long 10m of every joint.Internode adopts pin to connect pin diameter 64mm.Lower boom hangs down apart from being 2.5m on the longitudinal and transverse beam, and longeron two top booms, crossbeam two top boom level intervals are 1.2m, web member spacing 1.9m, and the keying position is vertically strengthened.Supporting steel pipe is diameter 1.0m, the steel pipe of wall thickness 10mm.

Present embodiment utilizes the English truss of conventional bridge formation machine as longeron 2 and crossbeam 3, two crossbeams 3 is erected on the precast beam that has set up 5 on the highway bent cap 7 of adjacent two bridge piers, and its sponson cooperates two supporting steel pipes 1 as supporting again; Two of longeron 2 is erected on the track of two crossbeams, settles two overhead traveling cranes 4 at longeron 2 two.So just, transform one as and be specifically designed to the bale handle station that precast beam promotes, precast beam 5 is sling by two overhead traveling cranes, 4 usefulness hoist ropes 6, the track along crossbeam moves to decorating position again, thereby has solved the problem of the high Dun Jiasheyuzhiliang of no abutment.

Claims (3)

1. no abutment bale handle station, comprise two crossbeams (3) and a longeron (2), it is characterized in that: two crossbeams (3) are erected on adjacent two bridge piers respectively or have set up on the precast beam (5) that finishes, crossbeam (3) stretches out the bridge pier part to be supported by supporting steel pipe (1), longeron (2) frame is on two crossbeams (3), and crossbeam (3) is provided with track, longeron (2) track-movable, and the two ends of longeron (2) are provided with two overhead traveling cranes (4).

2. a kind of no abutment bale handle as claimed in claim 1 station, it is characterized in that: described crossbeam (3) and longeron (2) all are made of truss.

3. a kind of no abutment bale handle as claimed in claim 1 or 2 station, it is characterized in that: longeron (2) moves along the track on the crossbeam (3) by running gear, and this running gear goes up movable motor by being arranged on longeron (2), and gear case and change-speed box composition.