CN215164726U

CN215164726U - A wholly unload structure that is used for cast-in-place beam steel pipe pile support to demolish fast

Info

Publication number: CN215164726U
Application number: CN202120706902.2U
Authority: CN
Inventors: 王安文; 吴曼; 王佳; 张曼; 薛飞
Original assignee: Road and Bridge International Co Ltd
Current assignee: Road and Bridge International Co Ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-14
Anticipated expiration: 2031-04-07

Abstract

The utility model provides an integral unloading structure for quickly dismantling a cast-in-place beam steel pipe pile support, two sides of a cast-in-place beam are respectively provided with a preformed hole opposite to two ends of each bearing beam of the support, a beam is arranged on a cross bridge of the top surface of the cast-in-place beam towards the top of the preformed hole, a pad beam is arranged on the beam corresponding to each preformed hole along the bridge direction, the top surfaces of two ends of each pad beam are respectively provided with a through jack, and the tops of two jacks are provided with a shoulder pole beam; a hanging rod penetrates through each preformed hole, the lower end of the hanging rod is anchored with the bearing beam, the upper end of the hanging rod sequentially penetrates through the cross beam, the pad beam, the space between the two jacks and the shoulder pole beam from bottom to top, a lower nut is screwed on the top surface of the pad beam on the hanging rod, and an upper nut is screwed on the top surface of the shoulder pole beam. When the support is dismantled, the steel pipe pile of the support is firstly dismantled, then the jack is controlled to integrally descend the upper structure of the support to the ground, the construction speed is high, the cost is low, and the safety is high.

Description

A wholly unload structure that is used for cast-in-place beam steel pipe pile support to demolish fast

Technical Field

The utility model belongs to the technical field of the bridge construction, a adopt steel-pipe pile support to carry out cast-in-place roof beam construction back, the whole structure of unloading that demolishs is carried out steel-pipe pile support is related to.

Background

The cast-in-place beam of the bridge is usually constructed by adopting a full support or a steel pipe pile support. When the steel pipe pile support is used for construction, a sand unloading cylinder is usually arranged at the top of the steel pipe pile, a bearing beam is erected on the sand unloading cylinder, a Bailey beam is erected on the bearing beam, a distribution beam is erected on the Bailey beam, and a cast-in-place beam construction template is installed on the distribution beam. And when the support is dismantled after the cast-in-place beam is constructed, the height of the support is reduced by discharging sand from the sand discharging barrel, then the upper structure of the support is dismantled from top to bottom in sequence by adopting hoisting equipment, and finally the steel pipe pile is dismantled. The existing support dismantling method is slow in construction, and when the sand discharging barrel descends, the sand discharging amount of each sand barrel needs to be synchronously controlled to be consistent, so that the inclination of the upper structure of the platform is avoided, and the construction difficulty is high; constructors need to operate at high altitude, and risks are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be with the whole structure of unloading of support superstructure to the above-mentioned problem that exists of current steel-pipe pile support demolishs the method to accelerate support dismantlement speed, reduce the construction risk.

The technical scheme of the utility model as follows:

the utility model provides a whole structure of unloading that is used for cast-in-place roof beam steel pipe pile support to demolish fast, steel pipe pile support substructure is the steel pipe pile, and superstructure is including setting up spandrel girder on the steel pipe pile, setting up the bailey roof beam on the spandrel girder, setting up the distribution roof beam on the bailey roof beam, its characterized in that: two sides of the cast-in-place beam are opposite to two ends of each bearing beam of the support and are respectively provided with a preformed hole, a cross beam is erected on the top surface of the cast-in-place beam in the transverse bridge direction of the preformed holes, a pad beam is erected on the cross beam corresponding to each preformed hole in the bridge direction, the top surfaces of two ends of each pad beam are respectively provided with a through jack, and a shoulder pole beam is erected on the tops of the two jacks; a hanging rod penetrates through each preformed hole, the lower end of the hanging rod is anchored with the bearing beam, the upper end of the hanging rod sequentially penetrates through the cross beam, the pad beam, the space between the two jacks and the shoulder pole beam from bottom to top, a lower nut is screwed on the top surface of the pad beam on the hanging rod, and an upper nut is screwed on the top surface of the shoulder pole beam.

The utility model makes full use of the supporting force provided by the cast-in-place beam after construction to lift the upper structure of the support, after the steel pipe pile is removed, the upper structure of the support can be wholly lowered to the ground, the member pieces do not need to be detached one by one, the lifting equipment is not needed, the construction speed is extremely high, and the investment is low; the risk that the component was demolishd to reducible personnel on the support brings, and the security is high.

Drawings

FIG. 1 is a schematic view of a transverse bridge of the present invention;

fig. 2 is a schematic view of the present invention along the bridge direction;

fig. 3 is a partially enlarged view of fig. 2.

Detailed Description

As shown in fig. 1, 2 and 3, the lower structure of the cast-in-place beam construction support is a steel pipe pile 1, and the upper structure of the support comprises a bearing beam 2 erected at the top of the steel pipe pile, a beret beam 3 erected at the top of the bearing beam, a distribution beam 4 erected at the top of the beret beam and the like.

Two sides of a cast-in-place beam 5 are opposite to two ends of each bearing beam of the support and are respectively provided with a preformed hole, a cross beam 6 is erected on the top of the preformed hole in the transverse direction of the top surface of the cast-in-place beam, a pad beam 7 is erected on the cross beam corresponding to each preformed hole in the bridge direction, the top surfaces of two ends of each pad beam are respectively provided with a through jack 8, and the tops of two jacks are provided with a shoulder pole beam 9; a hanging rod 10 penetrates through each preformed hole, the lower end of the hanging rod 10 is anchored with the bearing beam 2, the upper end of the hanging rod 10 sequentially penetrates through the cross beam 6, the pad beam 7, the space between the two jacks 8 and the shoulder pole beam 9 from bottom to top, a lower nut 11 is screwed on the top surface of the pad beam on the hanging rod, and an upper nut 12 is screwed on the top surface of the shoulder pole beam.

The construction process when the steel pipe pile support is dismantled is as follows:

firstly, the support steel pipe pile 1 is dismantled. Under the condition that a sand cylinder and other unloading devices are installed at the top of the steel pipe pile, firstly, the height of the unloading devices is reduced, the unloading devices are taken down, and then, the bottom of the steel pipe pile is separated from a supporting foundation and moved away; and directly cutting off the steel pipe pile under the condition that the bearing beam is directly installed at the top of the steel pipe pile. After the steel pipe pile is dismantled, the upper structure of the support is suspended and is completely lifted by the hanger rod 10.

The upper nuts 12 are rotated upwards on the suspension rod by the height of one stroke of the jack, and then the carrying pole beam 9 is lifted upwards by the jack 8 by one stroke; each lower nut 11 is rotated upwards by the height of one stroke of the jack, then the jack returns oil, the height of the suspender 10 is reduced by one jack stroke, and the upper structure of the bracket is reduced by the corresponding height; and repeating the process until the whole upper structure of the support falls to the ground.

Claims

1. The utility model provides a whole structure of unloading that is used for cast-in-place roof beam steel pipe pile support to demolish fast, steel pipe pile support substructure is the steel pipe pile, and superstructure is including setting up spandrel girder on the steel pipe pile, setting up the bailey roof beam on the spandrel girder, setting up the distribution roof beam on the bailey roof beam, its characterized in that: two sides of the cast-in-place beam are opposite to two ends of each bearing beam of the support and are respectively provided with a preformed hole, a cross beam is erected on the top surface of the cast-in-place beam in the transverse bridge direction of the preformed holes, a pad beam is erected on the cross beam corresponding to each preformed hole in the bridge direction, the top surfaces of two ends of each pad beam are respectively provided with a through jack, and a shoulder pole beam is erected on the tops of the two jacks; a hanging rod penetrates through each preformed hole, the lower end of the hanging rod is anchored with the bearing beam, the upper end of the hanging rod sequentially penetrates through the cross beam, the pad beam, the space between the two jacks and the shoulder pole beam from bottom to top, a lower nut is screwed on the top surface of the pad beam on the hanging rod, and an upper nut is screwed on the top surface of the shoulder pole beam.