CN218712243U

CN218712243U - Temporary support for steel box girder construction

Info

Publication number: CN218712243U
Application number: CN202222892983.7U
Authority: CN
Inventors: 杨贵柏; 谢德斌; 王承皓
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-24
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a temporary support for construction of steel case roof beam of highway traffic engineering technical field, including installing the support column on the ground and installing the crossbeam that is used for bearing the weight of the steel case roof beam at the support column top, the ground is reinforced concrete layer and pre-buried there is rag bolt, the support column includes two piece at least parallel arrangement's stand, and every stand bottom all is equipped with the bottom plate, and the interval is provided with the horizontal pole between the adjacent stand, is equipped with the bracing between two upper and lower adjacent horizontal poles, the bottom plate periphery is equipped with the angle steel to through mounting hole and rag bolt fixed connection on the angle steel. The utility model discloses utilize support column and crossbeam as temporary support, it is more convenient to set up, and the support column passes through bottom plate and rag bolt with the ground and is connected, and it is big to support the area, supports small in quantity, can improve the stability of support, control elevation that also can be better.

Description

Temporary support for steel box girder construction

Technical Field

The utility model relates to a highway traffic engineering technical field especially relates to an interim support for steel case roof beam construction.

Background

At present, in the work progress of steel box girder, adopt a large amount of steel pipe scaffold to set up interim support usually, concrete work progress is rammed ground earlier, then erects steel pipe scaffold, encloses the fender protection with the colored steel sheet at the periphery of steel pipe scaffold support body at last. If the application number is: the patent document CN201910177611.6 discloses a method for constructing a steel-concrete box girder by erecting scaffolds on both sides of a pier, and then erecting steel-concrete box girders on the scaffolds and the top of the pier. The defect that this prior art exists is that, tamp ground and can not play fine reinforcement effect, steel pipe scaffold and ground contact point are more, when local subsidence appears in the ground, lead to the temporary support deformation that steel pipe scaffold set up easily, and then make steel box girder elevation be difficult to control. In addition, the construction site has more general vehicles, so the steel pipe scaffold frame body is easy to be impacted, and safety accidents occur.

SUMMERY OF THE UTILITY MODEL

For overcoming and adopt steel pipe scaffold to build the above-mentioned not enough that interim support exists, the utility model aims to solve the technical problem that: the temporary support for the steel box girder construction is more stable and reliable in structure.

The utility model provides a technical scheme that its technical problem adopted is:

a interim support for steel box girder construction, including installing the support column on the ground and installing the crossbeam that is used for bearing the weight of the steel box girder at the support column top, the ground is reinforced concrete layer and pre-buried there is rag bolt, the support column includes two piece at least parallel arrangement's stand, and every stand bottom all is equipped with the bottom plate, and the interval is provided with the horizontal pole between the adjacent stand, is equipped with the bracing between two adjacent horizontal poles from top to bottom, the bottom plate periphery is equipped with the angle steel to through mounting hole and rag bolt fixed connection on the angle steel. And a reinforced concrete layer is adopted as a foundation, so that the foundation can not be settled. Utilize support column and crossbeam as the support, it is more convenient to set up, and the support column is connected through bottom plate and rag bolt with the ground, and the holding area is big, supports a small amount, can improve the stability of supporting.

In order to improve the structural strength of the supporting column and simultaneously consider factors such as erection difficulty and cost, the supporting column preferably adopts four stand columns which are arranged in parallel as a main body, and the four stand columns are respectively positioned at four corners of a square. The upright posts are arranged in a square shape, so that the supporting strength can be ensured, and the cross rods and the inclined struts can be universal and are convenient to erect.

For the cross member, since the steel box girder is supported mainly by the middle portion thereof, H-shaped steel is preferable, having sufficient rigidity. The top of the upright post is provided with a flange which is detachably connected with the cross beam through a bolt, and the flange and the bolt are adopted for connection, so that the upright post is convenient to mount and dismount.

To the support column, stand and horizontal pole can adopt circular steel pipe, and the bracing adopts the angle steel preparation, the interval is provided with the connecting plate on the stand, horizontal pole and bracing pass through the bolt and can dismantle with the connecting plate and be connected. The erection and the disassembly of the supporting column can be facilitated through the bolt connection, and the aim of recycling is fulfilled.

In order to avoid the bracket from being hit by a vehicle, the anti-collision structure is further arranged, the anti-collision structure comprises a water horse and anti-collision barrels, the water horse and the anti-collision barrels are arranged around the supporting column, the anti-collision barrels are arranged on the periphery of the water horse at intervals, and the anti-collision barrels are fixed on a foundation through an axis vertical rod in the middle of the water horse. The anti-collision barrel is fixedly connected with the foundation, and can play a certain role in stopping the vehicle. The water horse mainly plays a role in buffering, and even if the vehicle knocks down the anti-collision barrel, the water horse can be subjected to secondary protection.

Furthermore, a reflective layer or a fluorescent coating is arranged on the outer wall of the anti-collision barrel. The reflective layer and the fluorescent coating mainly play a role in warning at night, and the safety is improved.

The utility model has the advantages that: firstly, the utility model utilizes the support columns and the cross beams as the supports, so that the erection is more convenient, the support columns are connected with the foundation through the bottom plate and the foundation bolts, the support area is large, the number of supports is small, and the support stability can be improved; secondly, the upright posts are detachably connected with the cross rods and the inclined struts, and the supporting columns are detachably connected with the cross beams, so that the convenience of installation and disassembly can be improved; finally, through set up an anticollision section of thick bamboo and water horse at support column bottom periphery, can play certain guard action to the support column, improved the security of construction.

Drawings

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

FIG. 2 is a schematic view of the bottom structure of the middle support column of the present invention;

FIG. 3 is a schematic view of the anti-collision structure of the present invention;

the marks in the figure are 1-foundation, 2-supporting column, 3-beam, 4-water horse, 5-anti-collision barrel, 11-foundation bolt, 21-upright column, 22-bottom plate, 23-cross rod, 24-diagonal brace, 25-angle steel and 26-connecting plate.

Detailed Description

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

As shown in fig. 1 and 2, the utility model discloses a temporary support for steel box girder construction, including installing support column 2 on ground 1 and installing the crossbeam 3 that is used for bearing the weight of the steel box girder at 2 tops of support column, ground 1 is reinforced concrete layer and pre-buried there is rag bolt 11, support column 2 includes two piece at least parallel arrangement's stand 21, and every stand 21 bottom all is equipped with bottom plate 22, and the interval is provided with horizontal pole 23 between the adjacent stand 21, is equipped with bracing 24 between two adjacent horizontal poles 23 from top to bottom, bottom plate 22 periphery is equipped with angle steel 25 to through mounting hole and the rag bolt 11 fixed connection on the angle steel 25. Before construction, the pressure to be borne by the foundation 1 needs to be calculated, then a reinforced concrete layer is laid, and the foundation 1 is ensured not to be settled through a pressure test. Compare current steel pipe scaffold, the utility model discloses utilize support column 2 and crossbeam 3 as the support, it is more convenient to set up, and support column 2 is arranged along 3 length direction intervals of crossbeam, and concrete interval is selected according to the steel case roof beam actual conditions in the engineering. Support column 2 is connected through bottom plate 22 and rag bolt 11 with ground 1, and the support area is bigger, and it is less to support the quantity, is difficult to receive the influence of ground local settlement, can improve the stability of support, the elevation at 3 tops of assurance crossbeam that also can be better. In elevation control, the actual elevation of the top of the cross beam 3 can be controlled to be slightly lower than the designed elevation, and the designed elevation is achieved by laying a base plate on the top of the cross beam 3.

Support column 2 can have multiple structural style, for example the form of single tube stand or the combination of multitube stand, nevertheless under the prerequisite of the structural strength who guarantees the support column, multitube stand combination form is erecting the degree of difficulty and is more advantageous with the cost, consequently, the utility model discloses preferred scheme is that adopt four parallel arrangement's stand 21 as the main part to four stands 21 are located four angles of square respectively, can guarantee to support intensity like this, and each horizontal pole 23 and bracing 24 also can both be general, conveniently erect.

The cross member 3 is preferably made of H-shaped steel, which has sufficient rigidity, because it mainly supports the steel box girder at its middle portion. For the scheme of adopting four stand columns 21 as the support column 2, two H-shaped steels can be arranged in parallel at the top of the support column, and a connecting plate is arranged between the two H-shaped steels for connection so as to improve the support area. The top of the upright post 21 is provided with a flange, a through hole is drilled in the flange plate of the H-shaped steel, the flange and the cross beam 3 can be connected together through bolts, the support column 2 and the cross beam 3 are connected through the flange and the bolts, and the mounting and the dismounting are convenient.

For the support column 2, the upright column 21 and the cross rod 23 can be made of round steel pipes, the inclined strut 24 is made of angle steel, the connecting plates 26 are arranged on the upright column 21 at intervals, and the cross rod 23 and the inclined strut 24 are detachably connected with the connecting plates 26 through bolts. The erection and the disassembly of the supporting column 2 can be facilitated through the bolt connection, and the aim of recycling is fulfilled.

In order to avoid the bracket from being hit by a vehicle on a construction site, the anti-collision structure is further arranged, as shown in fig. 3, the anti-collision structure comprises a water horse 4 and anti-collision cylinders 5, the water horse 4 and the anti-collision cylinders 5 are arranged around a support column 2 at intervals, and the anti-collision cylinders 5 are fixed on a foundation 1 through an axis vertical rod in the middle of the water horse 4. The anti-collision structure only needs to be arranged on one side of the supporting column 2 close to the road. Can reserve rag bolt in advance on ground 1 during the installation, then with the axle center pole setting of an anticollision section of thick bamboo 5 and the rag bolt fixed connection on the ground 1, can play certain effect of blockking to the vehicle. The water horse 4 mainly plays a role in shielding and buffering, and even if the vehicle bumps down the anti-collision barrel 5, the water horse 4 also performs secondary protection. Furthermore, a reflective layer or a fluorescent coating is arranged on the outer wall of the anti-collision barrel 5. The reflective layer and the fluorescent coating mainly play a role in warning at night, and the safety is improved.

Claims

1. A interim support for steel box girder construction, characterized by: including installing support column (2) on ground (1) and installing crossbeam (3) that are used for bearing the weight of the steel case roof beam at support column (2) top, ground (1) is reinforced concrete layer and pre-buried there are rag bolt (11), support column (2) include two piece at least parallel arrangement's stand (21), and every stand (21) bottom all is equipped with bottom plate (22), and the interval is provided with horizontal pole (23) between adjacent stand (21), is equipped with bracing (24) between two adjacent horizontal poles (23) from top to bottom, bottom plate (22) periphery is equipped with angle steel (25) to through mounting hole and rag bolt (11) fixed connection on angle steel (25).

2. A temporary support for steel box girder construction according to claim 1, wherein: the support column (2) comprises four stand columns (21) which are arranged in parallel, and the four stand columns (21) are respectively positioned at four corners of a square.

3. A temporary support for steel box girder construction according to claim 1, wherein: the beam (3) is H-shaped steel, the top of the upright post (21) is provided with a flange, and the flange is detachably connected with the beam through bolts.

4. A temporary support for steel box girder construction according to claim 1, wherein: the upright post (21) and the cross rod (23) are round steel pipes, the inclined strut (24) is an angle steel, the upright post (21) is provided with a connecting plate (26) at intervals, and the cross rod (23) and the inclined strut (24) are detachably connected with the connecting plate (26) through bolts.

5. A temporary support for steel box girder construction according to any one of claims 1 to 4, wherein: still include crashproof structure, crashproof structure is including surrounding water horse (4) and an anticollision section of thick bamboo (5) around support column (2), an anticollision section of thick bamboo (5) interval sets up in water horse (4) periphery to fix on ground (1) through the axle center pole setting in its middle part.

6. The temporary support for steel box girder construction as set forth in claim 5, wherein: and a reflective layer or a fluorescent coating is arranged on the outer wall of the anti-collision barrel (5).