CN209024976U - A kind of multi-hoop bracket for high pier cover beam construction of bridge - Google Patents

Abstract

The utility model discloses a multi-hoop support for the construction of a high pier cover beam of a bridge, which comprises a plurality of hoops fixedly connected with bridge piers, and each hoop is symmetrically and fixedly connected with horizontal support rods on both sides of the bridge piers. , all horizontal support rods are parallel; the ends of all horizontal support rods on the same side of the bridge pier column are fixedly connected to the same diagonal support rod; the distance between the upper end of the diagonal support rod and the bridge pier column is greater than the distance between the lower end of the diagonal support rod and the bridge pier column The distance between the bridge piers and the horizontal beams is also included, the beams are vertically connected with the horizontal support rods connected to the uppermost hoop, and the beams are symmetrical with respect to the horizontal support rods; a number of horizontal support rods are erected between the beams , a number of horizontal struts are used as the bottom formwork support rods for the construction of the cover beam. The utility model has the advantages of simple structure and convenient construction, can solve the disadvantage of excessive human and material resources in the existing full-house support method, improve a stable construction platform for the construction of the cover beam, and has greater practicability and safety.

Description

A kind of multi-hoop bracket for high pier cover beam construction of bridge

technical field

The utility model belongs to the technical field of highway bridge cover beam construction, and specifically designs a multi-hoop bracket for the construction of a high pier cover beam of a bridge.

Background technique

With the rapid development of my country's economy, the infrastructure construction in cities and mountainous areas is under intensive construction. Among them, urban viaducts and bridges spanning mountains, rivers and canyons in mountainous areas will face the construction of high bridge piers and beams. Basically, the full-chamber support method is selected for construction, but for the construction of high piers and beams of bridges spanning mountains, rivers and canyons in urban viaducts, if the full-chamber support method is continued, a large amount of steel pipe frames and manpower will inevitably be used, and the construction period It is long and has poor safety, and the construction is difficult and dangerous. When encountering bridges spanning valleys in mountainous areas, the geological conditions are often poor, and it is impossible to raise a relatively stable platform for the support of the full house, which may also cause the inconsistency of the cover beams. Settled evenly. Therefore, the existing bridge piers, beams, and beams full support method construction has defects and shortcomings such as long construction period, poor stability, and the need to invest a lot of manpower and material resources.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the utility model improves a multi-hoop support for the construction of a high pier cover beam of a bridge, which has simple structure, reasonable design, sufficient safety and stability, and can avoid investing a lot of manpower and material resources. , reduce the construction period and save the construction cost.

The technical scheme adopted by the utility model is:

A multi-hoop support for the construction of a high pier cover beam of a bridge, comprising a plurality of hoops arranged at intervals and fixedly connected with a bridge pier column, each hoop is symmetrically and fixedly connected with a horizontal support rod on both sides of the bridge pier column, and all the hoop Horizontal support rods are parallel;

The ends of all horizontal support rods on the same side of the bridge pier column are fixedly connected to the same diagonal support rod; the distance between the upper end of the diagonal support rod and the bridge pier column is greater than the distance between the lower end of the diagonal support rod and the bridge pier column;

It also includes a horizontal beam symmetrical about the bridge pier column, the beam is vertically connected with the horizontal support rod connected to the uppermost hoop, the beam is symmetrical with respect to the horizontal support rod; a number of horizontal braces are erected between the beams A number of horizontal struts are used as the bottom formwork support rods for the construction of the cover beam.

A vertical support rod is connected between the horizontal support rod connected to the uppermost hoop and the lower horizontal support rod adjacent to the horizontal support rod up and down, and the vertical support rod is vertically arranged.

The vertical struts are arranged just below the beams.

The lower end of the vertical support rod, the horizontal support rod connected with the lower end of the vertical support rod, and the diagonal support rod are fixedly connected.

There is a rubber pad for increasing friction between the bridge pier and the hoop.

The beams are I-beams.

There are safety guardrails at both ends of the cover beam formwork.

Hoop set at least two.

The hoop and the horizontal support rod are connected by high-strength bolts; the horizontal support rod and the diagonal support rod are connected by high-strength bolts; the hoop is fixed to the bridge pier column by a plurality of high-strength bolts; the beam is connected to the uppermost hoop. The connected horizontal support rods are connected by high-strength bolts.

Compared with the prior art, the utility model has the following advantages:

The multi-hoop bracket for the construction of the high pier cover beam of the bridge of the utility model connects a plurality of hoop hoops on the bridge pier column, each hoop is symmetrically connected with the bridge pier column on both sides of the horizontal support rod, and all the horizontal support rods are parallel. The ends of all horizontal support rods on the same side of the bridge pier column are fixedly connected to the same diagonal support rod; the distance between the upper end of the diagonal support rod and the bridge pier column is greater than the distance between the lower end of the diagonal support rod and the bridge pier column; The horizontal support rods connected to the uppermost hoop are connected vertically, and the beams are symmetrical with respect to the horizontal support rods; several horizontal support rods are erected between the cross beams, and several horizontal support rods are used as the bottom formwork support rods for the construction of the cover beam; Above, the utility model has the characteristics of adjustable height of multiple hoop brackets in the construction of high pier cover beams of bridges. For the construction of high pier cover beams, the distance between several hoop brackets can be adjusted to change the height of the brackets. It is required to adjust the required height, and at the same time, the inclination angle of the diagonal strut can be adjusted according to the spacing between the hoops, so as to achieve a reasonable force; secondly, the stability is guaranteed. The lower deflection is controlled, and uneven settlement often occurs. The utility model uses several hoops as support points, horizontal struts and diagonal struts as force transmission rods, and the whole bracket forms a stable triangle, which ensures the cover beam. The lower deflection value of the utility model is stable; secondly, it has the characteristics of strong adaptability. Compared with the full house support method, the utility model can be constructed under the condition of poor geological conditions. risks of.

Further, a vertical support rod is connected between the horizontal support rod connected to the uppermost hoop and the lower horizontal support rod adjacent to the horizontal support rod. The struts can effectively prevent vertical deflection of the horizontal struts connected to the uppermost hoop, which is beneficial to the rigidity and stability of the overall structure.

Description of drawings

Fig. 1 is the structural representation after the utility model bridge high pier cover beam construction multi-hoop bracket is installed;

FIG. 2 is a side view of FIG. 1 .

Description of reference numbers:

1- Bridge pier, 2- Lower hoop, 3- Middle hoop, 4- Upper hoop, 5- Lower horizontal strut, 6-1- Diagonal brace one, 6-2- Diagonal brace two, 7 - Middle horizontal strut, 8-1-vertical strut one, 8-2-vertical strut two, 9-upper horizontal strut, 10-1-I-beam one, 10-2-I-beam two , 11-horizontal strut, 12-safety guardrail, 13-cover beam.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:

1 and 2, the multi-hoop support for the construction of the high pier cover beam of the bridge of the present invention includes a plurality of hoops arranged at intervals and fixedly connected to the bridge pier column 1, and each hoop is about the bridge pier on both sides of the hoop. Column 1 is symmetrically and fixedly connected with horizontal support rods, and all horizontal support rods are parallel; the ends of all horizontal support rods on the same side of bridge pier column 1 are fixedly connected to the same diagonal support rod; The distance is greater than the distance between the lower end of the diagonal strut and the bridge pier column 1; it also includes a beam that is symmetrical and horizontally arranged about the bridge pier column 1, the beam is vertically connected with the horizontal support rod connected to the uppermost hoop, and the beam is about the horizontal The support rods are symmetrical; several horizontal support rods 11 are erected between the beams, and several horizontal support rods 11 are used as the bottom formwork support rods for the construction of the cover beam 13 .

Referring to Fig. 2, as a preferred embodiment of the present utility model, a vertical support rod is connected between the horizontal support rod connected by the uppermost hoop and the horizontal support rod adjacent to the horizontal support rod up and down. The struts are set vertically.

As a preferred embodiment of the present invention, the vertical struts are arranged just below the beams.

As a preferred embodiment of the present invention, the lower end of the vertical strut, the horizontal strut connected to the lower end of the vertical strut, and the diagonal strut are fixedly connected.

As a preferred embodiment of the present invention, a rubber pad for increasing friction is provided between the bridge pier 1 and the hoop. The beam adopts I-beam. Safety guardrails 12 are provided at both ends of the cover beam formwork. Hoop set at least two. The hoop and the horizontal support rod are connected by high-strength bolts; the horizontal support rod and the diagonal support rod are connected by high-strength bolts; the hoop is fixed to the bridge pier column 1 by a plurality of high-strength bolts; the beam is connected to the uppermost hoop The connected horizontal support rods are connected by high-strength bolts.

Example

As shown in FIGS. 1 and 2 , the multi-hoop support for the construction of the high pier cover beam of the bridge in this embodiment includes a hoop, a support rod and an I-beam 10, wherein three hoops are provided, which are recorded as follows from bottom to top The lower hoop 2, the middle hoop 3 and the upper hoop 4, the lower hoop 2, the middle hoop 3 and the upper hoop 4 are all fixed on the pier body 1, of which the upper hoop 4 is at the uppermost end of the pier column, and the upper hoop Right below the hoop 4 is the middle hoop 3, and then down is the lower hoop 2; the lower hoop 2 is fixedly connected to the lower horizontal struts 5 at the left and right ends through high-strength bolts, and then the lower horizontal struts 5 at the left and right ends are respectively It is connected with the diagonal strut one 6-1 and the diagonal strut two 6-2; the left and right sides of the middle hoop 3 are respectively connected with the middle horizontal strut 7, and the middle horizontal strut 7 on the left and right sides are respectively connected with the diagonal strut one 6-1, The diagonal strut 2 6-2, the vertical strut 1 8-1 and the vertical strut 2 8-2 are connected; the left and right sides of the upper hoop 4 are respectively connected to the upper horizontal strut 9, The outer ends are respectively connected with the upper ends of the diagonal brace one 6-1 and the diagonal brace two 6-2, and the upper end of the upper horizontal brace 9 is provided with two I-beams one 10-1 and two I-beams 10 in the transverse bridge direction. -2, I-beam 1 10-1 and I-beam 2 10-2 are used as cross beams, vertical strut 1 8-1 and vertical strut 2 8-2 are vertically arranged, and are respectively located in I-beam 1 10 -1 and the second I-beam 10-2, the upper end of the vertical strut 1 8-1 and the upper end of the vertical strut 2 8-2 are respectively connected with the left and right upper horizontal struts 9, and the vertical struts The lower end of the rod 1 8-1 and the lower end of the vertical strut 2 8-2 are respectively connected with the left and right middle horizontal struts 7;

Several horizontal struts 11 are erected between the first I-beam 10-1 and the second I-beam 10-2. Several horizontal struts 11 are used as the bottom formwork support rods for the construction of the cover beam 13, and the upper part of the bottom formwork support rods is used as a construction platform. Safety guardrails 12 are provided at both ends of the platform.

In this embodiment, with the axis of the pier body 1 of the bridge pier column 1 as the center, the entire multi-hoop bracket is symmetrical about the axis of the pier body, that is, the upper horizontal strut 9, the middle horizontal strut 7 and the lower horizontal strut on the left and right sides 5 are symmetrically arranged on the left and right sides of the bridge pier 1, diagonal strut one 6-1 and diagonal brace two 6-2 are symmetrically arranged on the outermost side, vertical brace one 8-1, vertical brace The second 8-2 is symmetrically located on the inner side of the diagonal strut one 6-1 and the second diagonal strut 6-2.

During the actual construction, the upper hoop 4, the middle hoop 3 and the lower hoop 2 are fixed to the bridge pier 1 by multiple high-strength bolts, and a layer of rubber pad is placed between the bridge pier 1 and the hoop. to ensure sufficient friction. The upper horizontal strut 9, the middle horizontal strut 7 and the lower horizontal strut 5 are respectively connected with the upper hoop 4, the middle hoop 3 and the lower hoop 2 through high-strength bolts. The upper horizontal strut 9, the middle horizontal strut 7 , The secondary outer vertical strut 1 8-1, the vertical strut 2 8-2 and the outermost diagonal strut 1 6-1 and the diagonal strut 2 6-2 are connected by high-strength bolts; the lower horizontal strut The rod 5 is connected with the outermost diagonal strut 1 6-1 and the diagonal strut 2 6-2 through high-strength bolts.

In this embodiment, the upper horizontal strut 9, the middle horizontal strut 7, the lower horizontal strut 5, the vertical strut 1 8-1, the vertical strut 2 8-2, the diagonal strut 1 6-1 and the diagonal strut 1 Strut two 6-2 are all I-beams.

In this embodiment, the upper horizontal strut 9 is respectively fixed with two I-beams one 10-1 and two I-beams 10-2 in the transverse bridge direction at the upper end with high-strength bolts. The horizontal struts 11 are laid on the second beam 10-2, and the horizontal struts 11 are used as the bottom formwork support rods for the construction of the cover beam. At the same time, safety guardrails 12 are set at both ends of the cover beam formwork for construction safety.

During the construction of the embodiment, firstly, the upper hoop 4, the middle hoop 3 and the lower hoop 2 are fixed and installed on the construction pier 1 with high-strength bolts, and then the upper horizontal struts 9 and the middle horizontal braces on the left and right sides are symmetrically installed. The strut 7 and the lower horizontal strut 5, and then install the symmetrical vertical strut 1 8-1, vertical strut 2 8-2, diagonal strut 1 6-1 and diagonal strut 2 6-2, Finally, install the I-beam 1 10-1 and the I-beam 2 10-2, and lay the horizontal struts 11, then the entire cover beam construction platform is installed.

Compared with the prior art, the utility model has the following advantages:

1. The structure is simple and the design is reasonable. Compared with the current full-house support method, the required components are greatly reduced, the force of the structure is clear, and the support rod is mainly subjected to the axial force, which makes full use of the tensile and compressive strength of the steel and reduces the construction cost. cost and reduced construction period.

2. The installation is convenient, the number of components is small, and the components are connected by high-strength bolts, which can be quickly assembled and dismantled, easy to carry and reused, especially suitable for construction environments in mountainous areas due to terrain conditions and inconvenient traffic.

To sum up, the utility model has the advantages of simple structure, reasonable design, clear force, saving materials, reducing construction cost, fast installation and dismantling, convenient construction in mountainous areas with poor geological conditions, and reducing construction period. In addition, it can provide sufficient bearing capacity and stability to ensure the safety of high pier cover beam construction.

The present invention is not limited to the above-mentioned embodiments, and other structural designs obtained by adopting the same or similar structures as the above-mentioned embodiments of the present invention are all within the protection scope of the present invention.

Claims (9)

1. a multi-hoop support for the construction of a high pier cover beam of a bridge, is characterized in that, comprises several hoops that are arranged at intervals and are fixedly connected with the bridge pier column (1), and each hoop is about the bridge pier column on both sides thereof. (1) There are horizontal support rods symmetrically and fixedly connected, and all horizontal support rods are parallel; The ends of all horizontal support rods on the same side of the bridge pier column (1) are fixedly connected to the same diagonal support rod; the distance between the upper end of the diagonal support rod and the bridge pier column (1) is greater than the distance between the lower end of the diagonal support rod and the bridge pier column (1). 1) the distance between; It also includes a cross beam symmetrically and horizontally arranged about the bridge pier column (1), the cross beam is vertically connected with the horizontal support rod connected to the uppermost hoop, the cross beam is symmetrical about the horizontal support rod; Several horizontal struts (11) are used as bottom formwork support rods for the construction of the cover beam (13). 2. The multi-hoop support for construction of a high pier cover beam of a bridge according to claim 1, wherein the horizontal support rod connected by the uppermost hoop and the horizontal support below the horizontal support rod are adjacent up and down. Vertical struts are connected between the rods, and the vertical struts are arranged vertically. 3 . The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 2 , wherein the vertical strut is arranged directly below the cross beam. 4 . 4. The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 2 or 3, wherein the lower end of the vertical strut, the horizontal strut connected to the lower end of the vertical strut, and the inclined The strut is fixedly connected. 5 . The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 1 , wherein a rubber pad for increasing friction is provided between the bridge pier column ( 1 ) and the hoop. 6 . 6 . The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 1 , wherein the cross beam is an I-beam. 7 . 7 . The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 1 , wherein safety guardrails ( 12 ) are provided at both ends of the cover beam formwork. 8 . 8 . The multi-hoop bracket for the construction of a high pier cover beam of a bridge according to claim 1 , wherein at least two hoop brackets are provided. 9 . 9. The multi-hoop bracket for construction of a high pier cover beam of a bridge according to claim 1, wherein the hoop and the horizontal support rod are connected by high-strength bolts; the horizontal support rod and the diagonal support rod are connected by High-strength bolt connection; the hoop is fixed to the bridge pier column (1) through a plurality of high-strength bolts; the beam and the horizontal support rod connected to the uppermost hoop are connected by high-strength bolts.