CN218861349U - Recyclable steel structure jig frame for corrugated web steel box girder two-splicing field - Google Patents

Abstract

The utility model discloses a recyclable steel structure jig frame for a second splicing field of corrugated web steel box girders; the jig frame comprises ladder type side frames, cross beams and a jacking device. The two ladder-shaped side frames are arranged side by side at intervals, and a plurality of accommodating grooves are symmetrically arranged at the positions of the opposite sides of the two ladder-shaped side frames; two cross beams are arranged at intervals up and down, and a plurality of cross beams are arranged at intervals along the length direction of the ladder type side frames, and two ends of each cross beam are provided with snap-fit parts and are placed in the accommodating grooves; the jacking device comprises an adjustable jacking component and a positioning inserted bar arranged on the adjustable jacking component; the positioning insertion rod longitudinally penetrates through the accommodating groove and is matched with the buckle matching piece, and the adjustable jacking assembly is detachably arranged in the middle of the cross beam through the positioning insertion rod. The utility model discloses can solve current disposable structure bed-jig and build the problem that wastes time and energy and with high costs to and can't multiplex the problem that causes the material waste.

Description

Recyclable steel structure jig frame for corrugated web steel box girder two-splicing field

Technical Field

The utility model belongs to the technical field of the bridge is built, concretely relates to but cyclic utilization's two steel structure bed-stays that piece together of wave form web steel box girder.

Background

In the prior art, the novel corrugated web steel box girder has more structural forms, is a single-box single-chamber steel box girder, has a single span of 30-50 meters, needs to be manufactured in a factory in stages due to road transportation limitation, is transported to a bridge position two-splicing field for splicing, and requires to pour first-stage concrete on a bridge position two-splicing field dense bed-jig according to design documents. An intensive jig frame is required to be used during splicing in a second splicing field and pouring first-stage concrete, the intensive jig frame is welded into a three-dimensional lattice frame body by I-shaped steel, channel steel or square steel, then a jacking member is installed on the lattice frame body through a bolt-nut connecting piece, and a plurality of supporting points are formed by arranging a plurality of jacking members, so that the jig frame is called as the intensive jig frame; this kind of lattice frame body of bed-jig is disposable structure, uses to accomplish after except that other support body components of top holding member can't carry out the reutilization, causes the material extravagant, needs a large amount of time, manpower, financial resources when setting up simultaneously, can produce very high cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a recyclable steel structure jig frame for a corrugated web steel box girder splicing field aiming at the defects in the prior art; this steel construction bed-jig can solve current disposable structure bed-jig and build the problem that wastes time, difficultly and with high costs to and can't multiplex the problem that causes the material waste.

In order to achieve the above object, the utility model adopts the following technical scheme:

a two steel structure bed-stays that piece together of two of cyclic utilization's wave form web steel box girder includes:

the ladder-shaped side frames are arranged side by side at intervals, and a plurality of accommodating grooves are symmetrically arranged at the positions of the opposite sides of the two ladder-shaped side frames;

two cross beams are arranged at intervals up and down, a plurality of cross beams are arranged at intervals along the length direction of the ladder type side frame, and the two ends of each cross beam are provided with snap-fit pieces and are placed in the accommodating grooves;

the jacking device comprises an adjustable jacking component and a positioning inserted bar arranged on the adjustable jacking component; the positioning insertion rod longitudinally penetrates through the accommodating groove and is matched with the buckle matching piece, and the adjustable jacking assembly is detachably arranged in the middle of the cross beam through the positioning insertion rod.

Further, the ladder-type side frame comprises two longitudinal beams which are arranged at intervals up and down and a plurality of upright posts connected between the longitudinal beams; the containing groove is established in the corresponding position department of stand on the longeron, the locating hole that link up from top to bottom is equipped with in the corresponding department of containing groove on the longeron.

Furthermore, the snap-fit piece comprises a connecting plate arranged at the end part of the cross beam and a positioning cylinder arranged on the connecting plate.

Furthermore, the adjustable jacking component comprises a bottom plate, a thread cylinder vertically arranged on the bottom plate and an adjusting screw rod matched with the thread cylinder; the positioning insertion rod is vertically arranged on the bottom plate, the top end of the adjusting screw rod is provided with a top cap, and a plurality of protruding rods are arranged on the periphery of the top cap.

The utility model has the advantages that:

in the structural design of the utility model, the ladder-shaped side frames and the cross beams are locked by the jacking devices, so as to realize the detachable connection between each other and form a jig frame; the jacking device, the cross beam and the ladder-shaped side frame are all used as independent components, so that the transportation, the transfer, the installation and the disassembly are convenient, the convenience of operation during construction is improved, the repeated use is convenient, the construction cost can be reduced, and the material waste is avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the middle cross member of the present invention;

FIG. 4 is a schematic structural view of the middle supporting device of the present invention;

fig. 5 is a schematic structural view of the middle ladder-type side frame of the present invention.

Wherein, 1-ladder type side frame; 2-a cross beam; 3-a holding device; 4-longitudinal beams; 5-upright column; 6-positioning the holes; 7-a connecting plate; 8, positioning a cylinder; 9-positioning the inserted rod; 10-a base plate; 11-a threaded barrel; 12-adjusting the screw; 13-top cap; 14-protruding rod.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a recyclable steel structure jig for a second splicing field of corrugated web steel box girders; the steel structure jig frame comprises ladder type side frames 1, cross beams 2 and a jacking device 3. The beam 2 is connected between the two ladder type side frames 1 through a jacking device 3, and forms a three-dimensional lattice structure to form a frame body structure for basic support; meanwhile, the jacking device 3 is also used for supporting the bottom of the corrugated web steel box girder.

Two ladder type side frames 1 are arranged side by side at intervals, and a plurality of accommodating grooves are symmetrically arranged at the opposite side positions of the two ladder type side frames 1. The ladder type side frame 1 comprises a longitudinal beam 4 and a vertical column 5; two longitudinal beams 4 are arranged at intervals up and down; the upright columns 5 are connected between the longitudinal beams 4, the upright columns 5 are arranged in a plurality of manners, the upright columns 5 are connected and fixed with the longitudinal beams 4 through welding or bolt-nut connecting pieces, and the ladder-type side frames 1 are convenient to further disassemble when the bolt-nut connecting pieces are used for realizing connection and fixation. The longitudinal beams 4 and the upright posts 5 are made of I-shaped steel, so that accommodating grooves are formed conveniently; the utility model discloses the holding tank that mentions establishes on longeron 4 stand 5 and corresponds position department, utilizes the I-steel to form from there being the structure, and the locating hole 6 that link up about the holding tank correspondence department is equipped with on longeron 4, and locating hole 6 is used for cooperating with top-holding device 3.

Two crossbeams 2 are arranged at intervals up and down, and a plurality of crossbeams are arranged at intervals along the length direction of the ladder type side frame 1, and the specific number is the same as the number of the accommodating grooves. Two ends of the cross beam 2 are provided with snap fitting pieces and are placed in the accommodating grooves; the snap-fit piece comprises a connecting plate 7 arranged at the end part of the cross beam 2 and a positioning cylinder 8 arranged on the connecting plate 7; the crossbeam 2 adopts the I-steel, and connecting plate 7 welds at crossbeam 2 both ends, and the setting of connecting plate 7 is convenient for a location section of thick bamboo 8 welded fastening with it, and a location section of thick bamboo 8 can correspond with locating hole 6.

The jacking device 3 is used for connecting and fixing the assembled ladder-shaped side frames 1 and the assembled cross beams 2 and is also used for directly supporting the corrugated web steel box girder. The jacking device 3 comprises an adjustable jacking component and a positioning inserted bar 9 arranged on the adjustable jacking component. The positioning inserted bar 9 is matched with the positioning hole 6 to longitudinally penetrate through the accommodating groove, and simultaneously penetrates through the positioning barrel 8, so that the ladder-shaped side frame 1 and the cross beam 2 are clamped. The adjustable jacking component is also detachably arranged in the middle of the cross beam 2 through a positioning inserted bar 9, and a positioning hole 6 can be formed in the middle of the cross beam 2 or at a proper position of the longitudinal beam 4 for being matched with the positioning inserted bar 9, so that the number of supporting points can be increased. The adjustable jacking assembly comprises a bottom plate 10, a threaded cylinder 11 vertically arranged on the bottom plate 10, and an adjusting screw 12 matched with the threaded cylinder 11. The positioning insertion rods 9 are vertically arranged on the bottom plate 10, and the number of the positioning insertion rods 9 is not less than 2; the top end of the adjusting screw 12 is provided with a top cap 13, the top cap 13 is cylindrical, the periphery of the top cap 13 is provided with a plurality of protruding rods 14, and the protruding rods 14 are convenient to insert into the steel pipe, so that the rotating of the adjusting screw 12 is realized.

The utility model discloses a use and method are:

the utility model discloses assemble in advance during the use, during the equipment: arranging two ladder-shaped side frames 1 side by side at intervals, and maintaining the upright posts 5 to be vertical; then, a plurality of cross beams 2 are arranged along the length direction of the ladder-shaped side frames 1, and the cross beams are obliquely arranged in a clamping space formed by the two ladder-shaped side frames 1 relative to the ladder-shaped side frames 1; because the longitudinal beam 4 of the ladder-shaped side frame 1 is made of I-shaped steel, the cross beam 2 in an inclined state can enable the snap-fit piece to be correspondingly arranged at the position of the accommodating groove after the position is adjusted, the ladder-shaped side frame 1 does not need to be adjusted, and the cross beam 2 is vertical relative to the ladder-shaped side frame 1; after the plurality of cross beams 2 are arranged, positioning insertion rods 9 are used for inserting the positioning holes 6 and the positioning cylinders 8, so that the ladder-shaped side frames 1 and the cross beams 2 are connected and fixed, and a detachable connecting structure is adopted; the bottom plate 10 of the adjustable jacking component is pressed on the upper side cross beam 2, positioning holes 6 are formed in the middle of the cross beam 2 and other positions of the longitudinal beam 4, and the positioning insertion rods 9 are used for penetrating the positioning holes 6 to additionally arrange the adjustable jacking component so as to increase supporting points. Unloading money of the corrugated web steel box girder, selecting a foundation or other reference points, adjusting the supporting height of an adjusting screw 12 in advance, inserting a protruding rod 14 by using a steel pipe sleeve and rotating the adjusting screw 12 when adjusting the height, realizing the lifting adjustment relative to a threaded cylinder 11, and hoisting and conveying the corrugated web steel box girder to the jig frame after the adjustment is finished; and finally, fine adjustment is carried out by controlling the lifting of the adjusting screw 12, so that the effective support of the corrugated web steel box girder is realized. After the jig frame is used, the ladder-shaped side frame 1, the cross beam 2 and the jacking device 3 can form three independent components, so that the jig frame is convenient to disassemble and load, and is favorable for realizing multiplexing.

Claims (4)

1. The utility model provides a two steel structure bed-stays that piece together of cyclic utilization's wave form web steel box girder which characterized in that includes:

the two ladder-shaped side frames are arranged side by side at intervals, and a plurality of accommodating grooves are symmetrically arranged at the positions of the opposite sides of the two ladder-shaped side frames;

two cross beams are arranged at intervals up and down, a plurality of cross beams are arranged at intervals along the length direction of the ladder type side frame, and the two ends of each cross beam are provided with snap-fit pieces and are placed in the accommodating grooves;

the jacking device comprises an adjustable jacking component and a positioning inserted bar arranged on the adjustable jacking component; the positioning insertion rod longitudinally penetrates through the accommodating groove and is matched with the buckling fitting piece, and the adjustable jacking component is detachably arranged in the middle of the cross beam through the positioning insertion rod.

2. The steel structural jig frame for the second splicing field of the corrugated web steel box girder capable of being recycled according to claim 1, wherein the ladder type side frame comprises two longitudinal beams which are arranged at intervals up and down and a plurality of upright columns which are connected between the longitudinal beams; the vertical column is arranged on the longitudinal beam, the containing groove is formed in the position, corresponding to the vertical column, of the longitudinal beam, and a locating hole which is communicated up and down is formed in the position, corresponding to the containing groove, of the longitudinal beam.

3. The steel structure jig frame for the second assembling field of the corrugated web steel box girder capable of being recycled according to claim 1 or 2, wherein the snap-fit fittings comprise a connecting plate arranged at the end part of the cross girder and a positioning cylinder arranged on the connecting plate.

4. The steel structure jig frame for the second splicing field of the corrugated web steel box girder capable of being recycled according to claim 3, wherein the adjustable jacking component comprises a bottom plate, a threaded cylinder vertically arranged on the bottom plate, and an adjusting screw matched with the threaded cylinder; the positioning insertion rod is vertically arranged on the bottom plate, the top end of the adjusting screw rod is provided with a top cap, and a plurality of protruding rods are arranged on the periphery of the top cap.

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