CN216429078U

CN216429078U - Jacking and discharging device for temporary steel support supporting system

Info

Publication number: CN216429078U
Application number: CN202122522041.5U
Authority: CN
Inventors: 季云军; 江益波; 金旭; 林传栩; 袁彦杰; 史路路
Original assignee: Shanghai Communications Construction Contracting Co ltd
Current assignee: Shanghai Communications Construction Contracting Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-03
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a jacking device that unloads for interim steel support system, interim steel support system includes a plurality of steel-pipe columns, U type groove has been seted up to the top surface of steel-pipe column, the jacking device that unloads includes: set up in the U type groove and with steel-pipe column fixed connection's base, it includes: the bolt comprises a first bottom plate, a connecting block arranged in the center of the top surface of the first bottom plate and at least one bolt rod horizontally penetrating through the connecting block; two reaction blocks which are symmetrically distributed on two sides of the connecting block, are connected to the top surface of the first bottom plate in a sliding mode and are used for two ends of the bolt rod to penetrate through respectively, and each reaction block is provided with a first inclined plate; and the pressure bearing block is positioned above the connecting block and is provided with two second inclined plane plates which are respectively attached to the two first inclined plane plates so as to enable the two second inclined plane plates to slide up and down along the first inclined plane plates. The utility model discloses the security problem that the in-process jack falls to put on shelf and easily causes scram suddenly to descend has been solved effectively to the beam section.

Description

Jacking and discharging device for temporary steel support supporting system

Technical Field

The utility model relates to a device is assembled at construction steel structure beam section scene especially relates to a jacking of being used for interim steel support system unloads device.

Background

Since the beginning of the new century, with the vigorous development of the construction industry of China, the construction investment on the infrastructures such as expressways, high-rise buildings and large bridges is more and more large, and the steel structure is widely used in bridges and large buildings due to the advantages of light weight, high strength, short construction period and the like. In current building construction field, common steel construction has: steel truss bridges, steel box girder bridges, steel concrete combined bridges, large-scale net racks and the like. In the construction of steel structure bridges, along with the improvement of aesthetic level of people, the design of various special-shaped structures is more and more. Many large-scale deformed steel structure beam sections are assembled in the inside processing of mill and are accomplished the back, because the restriction of size and transport means, can't wholly transport to the job site and directly carry out the installation construction, but need cut apart large-scale steel structure beam section, divide into the segment and transport to the scene and hoist and assemble the welding, this just needs to set up interim steel support system and provides for steel structure beam section and assemble welding platform.

The temporary steel support system generally comprises steel pipe columns, horizontal connecting beams, top distributing beams, cross braces, jacks and other components. The steel pipe column bears the main load weight, the steel pipe column is combined and connected into a whole by the horizontal connecting beam and the cross braces, and the top distributing beam is erected in a U-shaped groove formed in the top surface of the steel pipe column and used for receiving a steel structure beam section placed above the top distributing beam. In the prior art, the height of the steel structure beam section is generally adjusted by arranging a jack below the top distribution beam in a U-shaped groove of the steel pipe column. However, the bracket system for adjusting the height of the beam section by using the jack has the following problems: the operation jack has high operation requirements for constructors, easily causes the problem of sudden stop and sudden drop when being unloaded, easily causes injury accidents, and has certain potential safety hazard for overhead operation and support operation in water. Meanwhile, when the number of the supports is large, the requirement on the supply quantity of the jacks is high, so that the cost is high, the field can not meet the requirement on the supply of the jacks of the same model in large batch, and the applicability is not strong for projects with tight construction period requirements. Therefore, it is necessary to provide a device for conveniently adjusting the elevation of the steel structure beam section at the top of the temporary steel support supporting system to solve the disadvantages in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect and provide a jacking device that unloads for interim steel support system to high accuracy adjustment roof beam elevation that falls.

A jacking device that unloads for interim steel support system, interim steel support system includes a plurality of steel-pipe columns, every the top surface of steel-pipe column has been seted up one and has been supplied top distribution roof beam to erect U type groove wherein, the jacking device that unloads includes:

a set up in one the U type groove and with steel-pipe column fixed connection's base, it includes: the bolt bar comprises a first bottom plate, a connecting block arranged at the center of the top surface of the first bottom plate and at least one bolt bar horizontally penetrating through the connecting block;

the two counter-force blocks are symmetrically distributed on two sides of the connecting block, are connected to the top surface of the first bottom plate in a sliding mode, allow two ends of the bolt rod to penetrate through and are fixedly connected with the bolt rod respectively, and each counter-force block is provided with a first inclined plane plate facing the connecting block; and

and the pressure-bearing block is positioned above the connecting block, supports the top distribution beam thereon and has an inverted trapezoidal longitudinal section, and the pressure-bearing block is provided with two second inclined plane plates which are respectively attached to the two first inclined plane plates so as to enable the top distribution beam to slide up and down along the first inclined plane plates.

In the above jacking and dropping device for a temporary steel stent support system, each of the reaction blocks comprises:

a second base plate slidably attached to the top surface of said first base plate;

an end plate vertically connected to an end edge of the second bottom plate adjacent to the connection block;

the bearing plate is vertically connected to the edge of the other end, far away from the connecting block, of the second bottom plate;

the two first side panels are vertically connected between the end plate and the bearing plate and are respectively positioned on the edges of the front side and the rear side of the second bottom plate; and

the first partition plates are arranged in a space defined by the second bottom plate, the end plate, the pressure bearing plate and the first side plate in a criss-cross mode;

the height of the end plate is lower than that of the pressure bearing plate, the first inclined plane plate is connected between the two first side face plates, the bottom edge of the first inclined plane plate is connected with the top edge of the end plate, and the two first side face plates are respectively provided with a bevel edge with the same inclination as the first inclined plane plate and form an inclined groove together with the first inclined plane plate for the second inclined plane plate to be slidably connected with the first inclined plane plate.

In the jacking and discharging device for the temporary steel support supporting system, the depth of the inclined groove is 3-5 mm.

In the above-described jacking and discharging apparatus for a temporary steel stent support system, the pressure block comprises:

a third bottom plate located above the connecting block;

two second side panels which are vertically connected to the edges of the front side and the rear side of the third bottom plate respectively and are in an inverted trapezoid shape; and

a plurality of second partition plates which are arranged in a criss-cross manner;

the two second inclined plane plates are connected between the two second side panels, the bottom edges of the two second inclined plane plates are respectively connected with the left end edge and the right end edge of the third bottom plate, and the second partition plate is arranged in a space defined by the third bottom plate, the second side panels and the second inclined plane plates.

In the above jacking and discharging device for the temporary steel support system, the inclination of the first inclined plane plate and the second inclined plane plate is 45 °.

In the above-mentioned a jacking unloads device for interim steel support system, jacking unloads device still includes: and the annular hoop surrounds the outer edge of the steel pipe column and is fixedly connected with the first bottom plate.

In the jacking and discharging device for the temporary steel support supporting system, two fixing plates are symmetrically arranged on the bottom surface of the first bottom plate, each annular hoop comprises two semicircular hoop rings which are folded together, and two ends of each hoop ring are provided with connecting plates fixedly connected with the fixing plates.

In the above jacking and discharging device for the temporary steel bracket supporting system, a sliding groove for the reaction block to be slidably connected therein is provided on the top surface of the first bottom plate.

In the jacking and discharging device for the temporary steel support supporting system, the depth of the sliding groove is 3-5 mm.

In the jacking and unloading device for the temporary steel bracket supporting system, two ends of the bolt rod are respectively provided with a threaded section, and the two ends of the bolt rod are fixedly connected with the corresponding reaction blocks through nuts after respectively penetrating through the two reaction blocks.

Based on the technical scheme, the utility model discloses an adopt two gliding counter-force pieces of mutually the back of the body or mutually the gliding counter-force piece of mutually the realization to erect the rising or the decline of the bearing piece between two counter-force pieces, thereby the elevation of top distribution roof beam at the bearing piece top surface is supported in the accurate adjustment, reach the purpose that falls the roof beam on the top distribution roof beam or adjust the required elevation of steel structure beam section on the top distribution roof beam, thereby solve effectively that the operation degree of difficulty is big among the prior art from this, the operation space is limited, thereby the use of jack is in large quantity and use the jack easily to cause the scram to fall suddenly when the frame falls and lead to the problem of casualties, simultaneously the utility model discloses also be applicable to the operation under the circumstances that waters operation and steel support are in large quantity, support height is big. Additionally, the utility model discloses still have simple structure, operation simple to operate, suitability strong, repeatability is good, the precision is high, advantages such as low cost.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a jacking and discharging device for a temporary steel support system according to the present invention;

fig. 2 is a schematic structural diagram of a base in an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure of the base, the reaction block and the annular hoop according to an embodiment of the present invention;

fig. 4 is a top view of a connection structure of the base, the reaction block and the annular hoop according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a bearing block in an embodiment of the present invention;

fig. 6 is a schematic view of a connection structure between the base and the annular hoop according to an embodiment of the present invention;

FIG. 7 is a schematic view of a partial structure of an embodiment of the present invention installed in a temporary steel stent support system;

FIG. 8 is a partial structural schematic of a temporary steel stent support system;

fig. 9 is a schematic structural view of another embodiment of a jacking and discharging device for a temporary steel support system according to the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 8, the temporary steel support system 200 includes a plurality of steel pipe columns 210, and a U-shaped groove 211 for installing a top distribution beam 240 therein is formed on a top surface of each steel pipe column 210. The utility model discloses, promptly, a jacking device that unloads for interim steel support system specifically includes:

set up in U type groove 211 and with steel-pipe column 210 fixed connection's base 1, it includes: a first bottom plate 11 made of a steel plate with the thickness not less than 10mm, a connecting block 12 arranged at the center of the top surface of the first bottom plate 11, at least one bolt rod 13 horizontally penetrating through the connecting block 12 and two fixing plates 14 symmetrically arranged on the bottom surface of the first bottom plate 11;

two reaction blocks 2 which are symmetrically distributed on two sides of the connecting block 12, are connected to the top surface of the first bottom plate 11 in a sliding manner, are used for two ends of the bolt rod 13 to respectively penetrate through and are fixedly connected with the bolt rod 13, and each reaction block 2 is provided with a first inclined plane plate 26 facing the connecting block 12;

a pressure block 3, which is located above the connecting block 12, on which the top distribution beam 240 is supported, and has an inverted trapezoidal longitudinal section, and which has two second inclined plane plates 33 respectively attached to the two first inclined plane plates 26 so as to slide up and down along the first inclined plane plates 26, wherein the inclination angles of the first inclined plane plates 26 and the second inclined plane plates 33 are both 45 °; and

the annular hoop 4 surrounds the outer edge of the steel pipe column 210 and is fixedly connected with the first bottom plate 11, the annular hoop comprises two semicircular hoop rings which are folded together, and two ends of each hoop ring are provided with connecting plates 41 fixedly connected with the fixing plate 14.

Specifically, in this embodiment, the top surface of the first bottom plate 11 is provided with a sliding groove 111 with a depth of 3-5mm for the reaction blocks 2 to slidably connect, two ends of the bolt 13 are respectively provided with a threaded section 131, and two ends of the bolt respectively penetrate through the two reaction blocks 2 and then are fixedly connected with the corresponding reaction blocks 2 through nuts 15, the strength of the bolt 13 and the strength of the nuts 15 both meet the bearing requirement when the distribution beam reaches the maximum load, and the diameter of the bolt 13 is not less than 50 mm.

In this embodiment, each reaction block 2 further includes:

a second base plate 21 slidably coupled to the top surface of the first base plate 11;

an end plate 22 vertically connected to an end edge of the second bottom plate 21 adjacent to the connection block 12;

a bearing plate 23 vertically connected to the other end edge of the second base plate 21 away from the connection block 12;

two first side panels 24 vertically connected between the end panel 22 and the bearing plate 23 and respectively located on the front and rear side edges of the second bottom panel 21; and

a plurality of first partition plates 25 arranged in a criss-cross manner in a space defined by the second bottom plate 21, the end plate 22, the pressure-bearing plate 23 and the first side plate 24;

wherein, the height of the end plate 22 is lower than the height of the bearing plate 23, the first inclined plane plate 26 is connected between the two first side panels 24, the bottom edge of the first inclined plane plate 26 is connected with the top edge of the end plate 22, the two first side panels 24 respectively have inclined edges with the same inclination as the first inclined plane plate 26 and form an inclined groove with a depth of 3-5mm with the first inclined plane plate 26 for the second inclined plane plate 33 to be slidably connected therein. The plates of the two reaction blocks 2 are integrally welded by steel plates with the thickness not less than 10 mm.

In this embodiment, the pressure block 3 further includes:

a third bottom plate 31 located above the connection block 12;

two second side panels 32 which are vertically connected to the front and rear edges of the third bottom panel 31 and have an inverted trapezoid shape; and

a plurality of second barrier plates 34 arranged in a criss-cross manner;

the two second inclined panels 33 are connected between the two second side panels 32, bottom edges of the two second inclined panels 33 are connected with left and right edges of the third bottom plate 31, and the second partition 34 is disposed in a space enclosed by the third bottom plate 31, the second side panels 32 and the second inclined panels 33. The bearing block 3 is made of integrally welded steel plates with the thickness not less than 10 mm.

Another embodiment of the present invention is shown in fig. 9, wherein the number of the bolt bars 13 is two, and other structures are the same as the above embodiment, and the two bolt bars 13 can effectively improve the bearing capacity of the jacking and discharging device, so as to support the jacking and discharging of the beam section 100 with a larger weight steel structure

The utility model discloses specifically use the operating method as follows:

firstly, a temporary steel support system 200 is erected, specifically, a plurality of steel pipe columns 210 are connected with a horizontal connecting beam 220 pairwise through a plurality of cross braces 230, a U-shaped groove 211 is formed in the top surfaces of the steel pipe columns 210, the type, height, space and erection form of the steel pipe columns 210 meet the requirements of the amplitude of frame falling and the design requirements, meanwhile, structural stress calculation is carried out according to the strength, rigidity and stability of the whole steel support system to determine the type, height, space and erection form of the steel pipe columns 210, the width of the U-shaped groove 211 meets the width of the top distribution beam 240 and the width of the jacking and dropping device which are completely embedded, and the depth of the U-shaped groove 211 is determined according to the initial height of the jacking dropping device and the amplitude of frame falling.

Secondly, weld the jacking and discharging device and make and imbed in U type groove 211, specifically, penetrate the bolt pole 13 and inlay in corresponding spout 111 with the reaction block 2 symmetry earlier, imbed the bearing block 3 in the inclined groove again, then twist the screw bolt pole 13 with nut 15, carry out bolted connection messenger jacking and discharging device on the steel-pipe column 210 top with fixed plate 14 with annular staple bolt 4 at last, wherein, all need scribble high performance emollient at the contact surface of first inclined plane board 26 and second inclined plane board 33, the contact surface of second bottom plate 21 and spout 111, the contact surface of bearing plate 23 and nut 15, in order to reduce the friction, be convenient for nut 15 to twist.

Then, a top distribution beam 240 is embedded in the U-shaped groove 211, specifically, the top distribution beam 240 rests on the bearing block 3, and then the nut 15 is screwed for primary leveling, completing all preparation before beam drop.

Finally, the steel structure beam section 100 is dropped on the top distribution beam 240, and the splicing between the beam sections or between the beam sections and the bridge columns is performed, when the top distribution beam 240 needs to be lowered in elevation during splicing, the distance between the two reaction blocks 2 can be gradually enlarged under the action of the horizontal component of the pressure provided by the pressure bearing block 3 by screwing the screw cap 15 outwards, so that the bearing block 3 gradually slides down along the first inclined plate 26 on the reaction block 2 to achieve the purpose of accurately lowering the elevation of the top distribution beam 240, and conversely, if the elevation of the top distribution beam 240 needs to be raised, the distance between the two reaction blocks 2 can be gradually reduced under the pushing of the nut 15 by screwing the nut 15 inwards, therefore, the bearing block 3 gradually rises along the first inclined plate 26 on the counter-force block 2, and the purpose of accurately improving the elevation of the top distribution beam 240 is achieved. After the beam falling construction is finished, the top distribution beam 240 can be pulled out from the U-shaped groove 211, the hoop 4 is loosened, and the jacking and falling device is taken out and can be repeatedly used in subsequent construction.

To sum up, the utility model discloses an adopt two gliding counter-force pieces of mutually can be relative or back of the body mutually to realize erectting the rising or the decline of the bearing piece between two counter-force pieces to required elevation when adjusting the concatenation of steel construction beam section, it has solved among the prior art jack and has fallen the problem that the frame easily caused the scram to fall suddenly, simultaneously, the utility model discloses still have advantages such as simple structure, simple to operate, repeatability are good.

The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.

Claims

1. The utility model provides a jacking device of unloading for interim steel support system, interim steel support system includes a plurality of steel-pipe columns, every a confession top distribution beam is seted up on the top surface of steel-pipe column and is erect U type groove wherein, its characterized in that, the jacking device of unloading includes:

and the pressure bearing block is positioned above the connecting block, supports the top distribution beam thereon and has an inverted trapezoidal longitudinal section, and the pressure bearing block is provided with two second inclined plane plates which are respectively attached to the two first inclined plane plates so as to slide up and down along the first inclined plane plates.

2. A jacking and drop off device for a temporary steel support system as claimed in claim 1, wherein each said counter-force block comprises:

3. A jacking and dropping device for a temporary steel support system according to claim 2, wherein the depth of said inclined groove is 3-5 mm.

4. The jacking and discharging device for a temporary steel support system according to claim 1, wherein said bearing block comprises:

a third bottom plate located above the connecting block;

the two second inclined plane plates are connected between the two second side face plates, the bottom edges of the two second inclined plane plates are respectively connected with the edges of the left end and the right end of the third bottom plate, and the second partition plate is arranged in a space defined by the third bottom plate, the second side face plates and the second inclined plane plates.

5. A jacking and drop off device for a temporary steel support system according to any one of claims 1 to 4, wherein the inclination of the first and second ramp panels is 45 °.

6. The jacking and dropping device for a temporary steel support system according to claim 1, further comprising: and the annular hoop surrounds the outer edge of the steel pipe column and is fixedly connected with the first bottom plate.

7. The jacking and discharging device for the temporary steel support supporting system according to claim 6, wherein two fixing plates are symmetrically arranged on the bottom surface of the first bottom plate, the annular hoop comprises two semi-annular hoop rings which are folded together, and two ends of each hoop ring are provided with connecting plates fixedly connected with the fixing plates.

8. The jacking and discharging device for a temporary steel support system according to claim 1, wherein a sliding groove for slidably connecting said reaction block therein is provided on the top surface of said first bottom plate.

9. The jacking and discharging device for a temporary steel support system according to claim 8, wherein the depth of said chute is 3-5 mm.

10. The jacking and discharging device for the temporary steel bracket supporting system according to claim 1, wherein two ends of the bolt rod are respectively provided with a threaded section, and the two ends of the bolt rod are respectively fixedly connected with the corresponding reaction blocks through nuts after penetrating through the two reaction blocks.