Large cantilever bent cap cable-stayed support construction device

Abstract

The utility model discloses a large cantilever bent cap cable-stayed support construction device which comprises a bearing platform, two pier columns arranged on the bearing platform, a plurality of temporary buttresses, a bent cap and a cable-stayed support, the pier columns and the temporary buttresses are used for supporting the bent cap, and the temporary buttresses are detachably arranged between the bent cap and the ground; the cable-stayed support comprises a support body and a plurality of inhaul cables, an installation space is formed between the two pier columns, the support body is arranged in the installation space, the bottom of the support body is fixedly connected with an embedded part of the bearing platform, one ends of the inhaul cables are connected with the top end of the support body, and the other ends of the inhaul cables are connected with the top end of the support body. The other ends of the multiple inhaul cables are sequentially connected with a bent cap in a cable-stayed mode, and the multiple inhaul cables are symmetrically distributed relative to the vertical center line of the support.

Description

Technical Field

[0001] The utility model relates to the technical field of large cantilever cap beam construction, in particular to a large cantilever cap beam oblique-stayed bracket construction device. Background Art

[0002] In order to save land or due to site restrictions, urban highway construction often adopts a three-dimensional traffic design with plane collinearity. The upper layer is a large cantilever cap beam and the lower layer is the urban main road. The piers under the large cantilever cap beam are placed in the central strip of the urban main road. During the construction period, it is required to be constructed while traffic is open, and generally one or two lanes are required to be occupied, resulting in a very narrow construction site and limited clearance. The construction of large cantilever cap beams under plane collinearity conditions generally adopts the bracket method or pin rod bracket method. The bracket method is a conventional ground-mounted steel pipe bracket, that is, a steel pipe pile + steel or Bailey load-bearing beam + steel distribution beam form; the bracket method generally reserves a hole on the pier column and adopts a pin rod + bracket + bracket beam + distribution beam structure. The existing bracket method, because of the use of ground-mounted steel pipes, often needs to occupy the roads on both sides or affect the roads on both sides. During the installation and removal period, it has a great impact on social vehicles, and is also affected by social vehicles, with high safety risks and low construction efficiency. The existing bracket method only requires installing pins and corbels on the pier body, and then installing the bracket for construction. However, because the bracket is cantilevered and the cross-section is usually large, there are requirements for the clearance between the bottom of the cap beam and the urban road surface. When the clearance is insufficient, the bracket method cannot be applied. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide a large cantilever cap beam inclined stay bracket construction device capable of carrying out large cantilever cap beam construction in a narrow space.

[0004] According to the large cantilever cap beam inclined-stayed support construction device of the embodiment of the utility model, it includes a cap, two piers arranged on the cap, a plurality of temporary piers, a cap beam and an inclined-stayed support, the piers and the temporary piers are used to support the cap beam, and the temporary piers are detachably arranged between the cap beam and the ground; the inclined-stayed support includes a support and a plurality of cables, an installation space is formed between the two piers, the support is arranged in the installation space and the bottom of the support is connected and fixed to the embedded parts of the cap, one end of the plurality of cables is connected to the top of the support, and the other ends of the plurality of cables are respectively and sequentially inclinedly connected to the cap beam, and the plurality of cables are symmetrically distributed about the vertical center line of the support.

[0005] According to some embodiments of the present invention, the cable is a steel rope or an iron chain.

[0006] According to some embodiments of the utility model, the bracket includes four columns, the bottoms of the columns are connected and fixed to the embedded parts of the base, and the columns are fixed to the piers by attaching to the wall, and adjacent columns are connected by diagonal braces so that the four columns form a whole.

[0007] According to some embodiments of the utility model, a fixed pulley is installed on the top of the bracket, and the cable is obliquely connected to the cap beam through the fixed pulley.

[0008] According to some embodiments of the present invention, two distribution beams are further included which are arranged on the cap beam, and the two distribution beams are symmetrically distributed about the vertical center line of the diagonal support.

[0009] According to some embodiments of the utility model, a bottom formwork for pouring is laid on the cap beam.

[0010] According to some embodiments of the utility model, a steel skeleton for casting is also included, and the bottom of the steel skeleton is connected to the bottom mold.

[0011] The large cantilever cap beam inclined-stayed support construction device according to the embodiment of the utility model has at least the following beneficial effects: first, set up temporary piers, install the cap beam on the pier column and the temporary pier, then install the distribution beam on the cap beam, then install the skeleton formwork used for pouring on the cap beam and the distribution beam, then install the support in the installation space between the two piers, and connect and fix the bottom of the support with the embedded parts of the pedestal, then connect multiple cables to the cap beam by inclined pull, and then the multiple temporary piers can be removed. The current cap beam construction relies on the supporting force to balance the gravity of the cap beam, while the inclined-stayed support relies on the support force of the support + the tension of the cable to balance the deadweight of the cap beam and the support. Under the support of the inclined-stayed support, the temporary piers are removed to avoid occupying too many lanes, and then the concrete is poured. After completion, the inclined-stayed support can be removed. The road occupation time is short, there is little interference with social vehicles, and construction work can be carried out in narrow construction areas.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings;

[0014] Figure 1 This is one of the structural diagrams before the installation of the inclined support;

[0015] Figure 2 This is the second structural diagram before the installation of the inclined support;

[0016] Figure 3It is a large cantilever cap beam inclined-stayed support construction device equipped with an inclined-stayed support. DETAILED DESCRIPTION

[0017] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0018] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0020] Reference Figures 1 to 3 The utility model discloses a large cantilever cap beam inclined-stayed support construction device, comprising a cap 11, two piers 12 arranged on the cap 11, a plurality of temporary piers 13, a cap beam 14 and an inclined-stayed support, wherein the piers 12 and the temporary piers 13 are both used to support the cap beam 14, and the temporary piers 13 are detachably arranged between the cap beam 14 and the ground; the inclined-stayed support comprises a support 21 and a plurality of cables 22, wherein the cables 22 are steel ropes or iron chains, and an installation space is formed between the two piers 12, the support 21 is arranged in the installation space, and the bottom of the support 21 is connected and fixed to the embedded parts of the cap 11, one end of the plurality of cables 22 is connected to the top of the support 21, and the other ends of the plurality of cables 22 are respectively and sequentially inclinedly connected to the cap beam 14, and the plurality of cables 22 are symmetrically distributed about the vertical center line of the support 21, and the force is evenly and firmly applied. The current construction of the cap beam 14 relies on the supporting force to balance the weight of the cap beam 14 , while the inclined-stayed bracket relies on the supporting force of the bracket 21 + the tension of the cable 22 to balance the self-weight of the cap beam 14 and the bracket 21 .

[0021] like Figure 3The bracket 21 includes four columns 23, the bottom of the column 23 is connected and fixed to the embedded parts of the pedestal 11, and the column 23 is fixed to the pier 12 by attaching the wall, and the adjacent columns 23 are connected by diagonal braces 24 so that the four columns 23 form a whole. A fixed pulley is installed on the top of the bracket 21, and the cable 22 is connected to the cap beam 14 by diagonal pulley. It also includes two distribution beams 30 arranged on the cap beam 14, and the two distribution beams 30 are symmetrically distributed about the vertical center line of the diagonal bracket. A bottom mold for casting and a steel frame 40 for casting are laid on the cap beam 14, and the bottom of the steel frame 40 is connected to the bottom mold.

[0022] The construction process of the device is as follows: Figure 1 First, a temporary pier 13 is set up, the cap beam 14 is installed on the pier column 12 and the temporary pier 13, and then the distribution beam 30 is installed on the cap beam 14; Figure 2 , and then install the bottom formwork, steel frame 40 formwork, etc. used for pouring onto the cap beam 14 and the distribution beam 30; Figure 3 , then install the bracket 21 into the installation space between the two piers 12, and connect and fix the bottom of the bracket 21 to the embedded parts of the base 11, and then connect multiple cables 22 to the cap beam 14 diagonally; then you can remove multiple temporary piers 13 to avoid occupying too many lanes; then pour concrete, and after completion, remove the diagonal bracket. The road occupancy time is short, there is little interference with social vehicles, and construction work can be carried out in narrow construction areas.

[0023] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0024] The above are only preferred embodiments of the utility model, and do not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept of the utility model, or directly or indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A large cantilever cap beam inclined support construction device, characterized in that: include: A pedestal (11), two piers (12) arranged on the pedestal (11), temporary piers (13), a cap beam (14) and an inclined bracket, wherein the piers (12) and the temporary piers (13) are both used to support the cap beam (14), and the temporary piers (13) are detachably arranged between the cap beam (14) and the ground; the inclined bracket comprises a bracket (21) and a plurality of cables (22), an installation space is formed between the two piers (12), the bracket (21) is arranged in the installation space and the bottom of the bracket (21) is connected and fixed to the embedded parts of the pedestal (11), one end of the plurality of cables (22) is connected to the top end of the bracket (21), and the other ends of the plurality of cables (22) are respectively and sequentially inclinedly connected to the cap beam (14), and the plurality of cables (22) are symmetrically distributed about the vertical center line of the bracket (21).

2. The large cantilever cap beam inclined support construction device according to claim 1 is characterized in that: The pull rope (22) is a steel rope or an iron chain.

3. The large cantilever cap beam inclined support construction device according to claim 1 is characterized in that: The support (21) comprises four columns (23), the bottoms of the columns (23) are connected and fixed to the embedded parts of the base (11), and the columns (23) are fixed to the pier (12) by attaching to the wall, and adjacent columns (23) are connected by diagonal braces (24) so ​​that the four columns (23) form a whole.

4. The large cantilever cap beam inclined support construction device according to claim 3 is characterized in that: A fixed pulley is installed on the top of the bracket (21), and the cable (22) is connected to the cap beam (14) in an oblique manner via the fixed pulley.

5. The large cantilever cap beam inclined support construction device according to claim 1 is characterized in that: It also includes two distribution beams (30) arranged on the cap beam (14), and the two distribution beams (30) are symmetrically distributed about the vertical center line of the inclined support.

6. The large cantilever cap beam inclined support construction device according to claim 5 is characterized in that: A bottom formwork for pouring is laid on the cap beam (14).

7. The large cantilever cap beam inclined support construction device according to claim 6 is characterized in that: It also comprises a steel frame (40) for casting, wherein the bottom of the steel frame (40) is connected to the bottom form.

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