Gate-type pier cross beam construction formwork

Abstract

A gate-type pier cross beam construction formwork comprises a cross beam, steel-concrete combination sections and pier column slurry blocking formworks, the steel-concrete combination sections are inserted into the two ends of the cross beam, the pier column slurry blocking formworks are inserted into the bottom ends of the two steel-concrete combination sections, stand columns are installed in the pier column slurry blocking formworks, and a plurality of first positioning columns are installed at the top ends of the stand columns; and a plurality of first limiting grooves matched with the plurality of first positioning columns are formed in the bottoms of the two ends of the cross beam. According to the design, the first positioning column is inserted into the first limiting groove to fix the position of the steel-concrete combined section, so that the steel-concrete combined section is always perpendicular to the pier column slurry blocking formwork and the stand column, the situation that the position is moved in the using process is avoided, and meanwhile installation between the steel-concrete combined section and the stand column is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of railway bridge construction, in particular to a portal pier crossbeam construction formwork. Background Art

[0002] With the massive construction of viaducts and the density of highway networks, the problem of conflicts between intersecting roads on the plane has increased. In order not to affect the use of the roads below, large-span bridges are usually used, and the use of frame piers is also increasing. There are two structural forms of frame piers: one is that the beam and the pier are consolidated; the other is that the superstructure is a continuous beam or a simply supported beam, a support is set at the bottom of the beam, and the pier and beam are separated.

[0003] The Chinese patent, with the authorization announcement number CN217352139U and the authorization announcement date September 2, 2022, discloses a portal pier beam construction formwork, including a beam and a pier column, the beam is arranged between the two pier columns, and the top of the pier column is connected to the bottom of both ends of the beam. Although the utility model improves the construction efficiency, it still has the following defects: position deviation is easy to occur when installing the formwork, affecting the subsequent construction effect. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned defects and problems existing in the prior art and to provide a portal pier crossbeam construction formwork to solve the problem that position deviation is easy to occur when installing the formwork, thus affecting the subsequent construction effect.

[0005] To achieve the above objectives, the technical solution of the utility model is: a portal pier beam construction formwork, comprising a beam, a steel-concrete combined section and a pier column slurry retaining formwork, the steel-concrete combined section is inserted at both ends of the beam, the pier column slurry retaining formwork is inserted at the bottom ends of the two steel-concrete combined sections, a column is installed inside the pier column slurry retaining formwork, a plurality of first positioning columns are installed at the top of the column, and a plurality of first limiting grooves matching the plurality of first positioning columns are opened at the bottom of both ends of the beam.

[0006] An assembly block is installed at the bottom end of the pier column slurry retaining formwork, a bearing platform is installed at the bottom end of the assembly block, and a plurality of fixing nails for being inserted into the ground are vertically installed at the bottom end of the bearing platform.

[0007] The top of the support platform is provided with an assembly groove for installing the assembly block.

[0008] A plurality of second limiting grooves are formed inside the assembly groove, and a plurality of second positioning columns matching the plurality of second limiting grooves are installed at the bottom end of the assembly block.

[0009] An adjusting pad block for adjusting the installation height of the column is installed inside the assembly groove.

[0010] A placement groove for placing the pier column grout retaining formwork is provided at the top of the assembly block.

[0011] A plurality of reinforcing blocks are connected between the top of the bearing platform and the side wall of the assembly block.

[0012] The pier column grout retaining formwork includes two symmetrically arranged U-shaped formworks. Ear plates are connected to both side walls of the two U-shaped formworks, and the ear plates of the two U-shaped formworks are connected by fasteners.

[0013] One lifting lug is installed on both the front and back of the pier column grout retaining formwork; a second lifting lug is installed at the top of the column.

[0014] A left support and a right support are installed at the top of the cross beam. A first inverted pouring port for filling concrete is provided at the top of each of the left support and the right support; a second inverted pouring port for filling concrete is provided at the top of the steel-concrete combined section.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the construction formwork for the cross beam of a portal pier of the present utility model, steel-concrete combined sections are inserted at both ends of the cross beam. A pier column grout retaining formwork is inserted at the bottom of the steel-concrete combined section. A column is installed inside the pier column grout retaining formwork. A plurality of first positioning columns are installed at the top of the column. A plurality of first limiting grooves matching the plurality of first positioning columns are provided at the bottom of both ends of the cross beam; the above design fixes the position of the steel-concrete combined section through the cooperation of the first positioning columns and the first limiting grooves, so that the steel-concrete combined section always remains perpendicular to the pier column grout retaining formwork and the column, avoiding the situation of position movement during use, and facilitating the installation between the steel-concrete combined section and the column. Description of the Drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of a construction formwork for the cross beam of a portal pier of the present utility model.

[0018] Figure 2 is a sectional structural schematic diagram of a construction formwork for the cross beam of a portal pier of the present utility model.

[0019] Figure 3 is Figure 2 the enlarged view of A in

[0020] Figure 4 is Figure 2 the enlarged view of B in

[0021] Figure 5 is a structural schematic diagram of the column in the present utility model.

[0022] Figure 6 is a structural schematic diagram of the pier column grout retaining formwork and the assembly block in the present utility model.

[0023] Figure 7 It is a schematic structural diagram of the bearing platform in the present utility model.

[0024] In the figure: cross beam 1, first limiting groove 101, left support 102, right support 103, first grouting port 104, steel-concrete combined section 2, second grouting port 201, pier column slurry retaining formwork 3, U-shaped formwork 301, ear plate 302, fastener 303, first lifting lug 304, column 4, first positioning column 401, second lifting lug 402, assembly block 5, second positioning column 501, bearing platform 6, assembly groove 601, second limiting groove 602, adjusting cushion block 603, fixing nail 7, reinforcing block 8. Specific embodiments

[0025] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] In an embodiment of the present application, referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , a gantry pier cross beam construction formwork includes a cross beam 1, a steel-concrete combined section 2 and a pier column slurry retaining formwork 3. The two ends of the cross beam 1 are inserted with the steel-concrete combined section 2, and the bottom ends of the two steel-concrete combined sections 2 are both inserted with the pier column slurry retaining formwork 3. An inner column 4 is installed inside the pier column slurry retaining formwork 3, and a plurality of first positioning columns 401 are installed at the top end of the column 4. A plurality of first limiting grooves 101 matching the plurality of first positioning columns 401 are opened at the bottom of both ends of the cross beam 1.

[0027] During application, the cross beam 1 fixes the steel-concrete combined section 2, and the pier column slurry retaining formwork 3 supports the steel-concrete combined section 2 and the cross beam 1. After the pier column slurry retaining formwork 3 is installed in place, cement, steel bars and the first positioning column 401 are poured into the pier column slurry retaining formwork 3. After the cement solidifies, the column 4 is formed. The column 4 and the steel-concrete combined section 2 are positioned and installed through a limiting component. The limiting component includes the first positioning column 401 and the first limiting groove 101. The first positioning column 401 is inserted into the first limiting groove 101 to fix the position of the steel-concrete combined section 2, so that the steel-concrete combined section 2 always remains perpendicular to the pier column slurry retaining formwork 3 and the column 4, avoiding the situation of position movement during use, and facilitating the installation between the steel-concrete combined section 2 and the column 4.

[0028] In another embodiment of the present application, referring to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7, an assembly block 5 is installed at the bottom end of the pier column grout retaining formwork 3, a bearing platform 6 is installed at the bottom end of the assembly block 5, and a plurality of fixing nails 7 for inserting into the ground are vertically installed at the bottom end of the bearing platform 6. The pier column grout retaining formwork 3 fixes the assembly block 5, the bearing platform 6 supports and fixes the assembly block 5, and the bearing platform 6 fixes the fixing nails 7. The number of the fixing nails 7 is multiple, which is set to 5 in this application. Among them, 4 fixing nails 7 are respectively located at the four corners of the bottom end of the bearing platform 6, and 1 fixing nail 7 is located in the middle of the bottom end of the bearing platform 6. The fixing nails 7 are inserted into the ground to ensure that the portal pier crossbeam construction formwork is always perpendicular to the ground, increasing the anti-tipping performance of the portal pier crossbeam construction formwork.

[0029] Further, referring to Figure 7 , an assembly groove 601 for installing and fixing the assembly block 5 is opened at the top end of the bearing platform 6, which improves the position stability between the assembly block 5 and the bearing platform 6 while simplifying the installation of the assembly block 5.

[0030] Further, referring to Figure 4 、 Figure 6 、 Figure 7 , a plurality of second limiting grooves 602 are opened inside the assembly groove 601, and a plurality of second positioning columns 501 matching the plurality of second limiting grooves 602 are installed at the bottom end of the assembly block 5. During assembly, the second positioning columns 501 are embedded in the second limiting grooves 602, which is convenient for restricting the installation position of the assembly block 5 and preventing deviation in position during installation.

[0031] Further, referring to Figure 7 , an adjusting cushion block 603 for adjusting the installation elevation of the column 4 is installed inside the assembly groove 601, and the adjusting cushion block 603 ensures the elevation, flatness during the mortar bedding of the column 4 and controls the thickness of the mortar cushion layer.

[0032] Further, a placement groove for placing the pier column grout retaining formwork 3 is opened at the top end of the assembly block 5. The bottom end of the pier column grout retaining formwork 3 is fitted into the placement groove, which improves the position stability between the pier column grout retaining formwork 3 and the assembly block 5 while simplifying the installation of the pier column grout retaining formwork 3.

[0033] During application, the construction workers insert the fixing nails 7 into the ground for fixation, so that the bearing platform 6 is perpendicular to the ground. Then, the surface of the bearing platform 6 is roughened, cleaned, and wetted. The adjusting cushion block 603 is installed in the assembly groove 601. At the same time, the pier column slurry retaining formwork 3 and the assembly block 5 are assembled and fixed by welding. Then, the crane is used to hoist and assemble the whole assembled pier column slurry retaining formwork 3 and the assembly block 5. Adjust the position so that the second positioning column 501 is embedded in the second limiting groove 602, adjust and place in position. The pier column slurry retaining formwork 3 is pre-connected to the bearing platform 6. Then, concrete and the first positioning column 401 are poured into the pier column slurry retaining formwork 3. After the concrete solidifies, the cross beam 1 hoisting process is carried out. The first positioning column 401 is embedded in the first limiting groove 101 for positioning and installation. After being in place, welding is carried out to ensure the fixation of the position between the cross beam 1 and the pier column slurry retaining formwork 3.

[0034] Further, referring to Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 , a plurality of reinforcing blocks 8 are connected between the top end of the bearing platform 6 and the side wall of the assembly block 5, and the position stability between the bearing platform 6 and the assembly block 5 is enhanced through the plurality of reinforcing blocks 8.

[0035] Further, referring to Figure 1 、 Figure 6 , the pier column slurry retaining formwork 3 includes two U-shaped formworks 301 arranged symmetrically. Ear plates 302 are connected to both side walls of the two U-shaped formworks 301, and the ear plates 302 of the two U-shaped formworks 301 are connected by fasteners 303. During use, the pier column slurry retaining formwork 3 is assembled by the two U-shaped formworks 301, making the operation simple. Specifically, the fasteners 303 can be bolts and nuts. The bolts are sequentially passed through the two ear plates 302 and then fixed by nuts.

[0036] Further, referring to Figure 5 、 Figure 6 , a first lifting lug 304 for hoisting the pier column slurry retaining formwork 3 is installed on both the front and back of the pier column slurry retaining formwork 3. The number of the first lifting lugs 304 can be multiple. In this application, it is set to 2. Through the first lifting lugs 304, it is convenient for the crane to perform vertical flipping operation on the pier column slurry retaining formwork 3.

[0037] Further, referring to Figure 5 、 Figure 6 , a second lifting lug 402 is installed at the top end of the column 4. Through the second lifting lug 402, it is convenient for the crane to hoist and assemble the whole assembled pier column slurry retaining formwork 3 and the assembly block 5.

[0038] Further, referring to Figure 1 、 Figure 2, at the top of the crossbeam 1, a left support 102 and a right support 103 are installed. At the top of the left support 102 and the right support 103, a first inverted pouring port 104 for filling concrete is provided. The left support 102 and the right support 103 are symmetrically arranged to reliably transfer the loads and deformations borne by the upper structure of the bridge to the lower structure of the bridge. The first inverted pouring port 104 facilitates timely filling of concrete into the left support 102 and the right support 103.

[0039] Further, referring to Figure 1 , at the top of the steel-concrete combined section 2, a second inverted pouring port 201 for filling concrete is provided, which facilitates timely filling of concrete into the crossbeam 1 and the steel-concrete combined section 2.

[0040] Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A portal pier beam construction formwork, characterized in that: The invention comprises a cross beam (1), a steel-concrete combined section (2) and a pier column slurry retaining formwork (3), wherein the steel-concrete combined section (2) is inserted at both ends of the cross beam (1), the bottom ends of the two steel-concrete combined sections (2) are inserted with the pier column slurry retaining formwork (3), a column (4) is installed inside the pier column slurry retaining formwork (3), a plurality of first positioning columns (401) are installed at the top of the column (4), and a plurality of first limiting grooves (101) matching the plurality of first positioning columns (401) are provided at the bottoms of both ends of the cross beam (1).

2. A portal pier beam construction formwork according to claim 1, characterized in that: An assembly block (5) is installed at the bottom end of the pier column slurry retaining template (3), a support platform (6) is installed at the bottom end of the assembly block (5), and a plurality of fixing nails (7) for being inserted into the ground are vertically installed at the bottom end of the support platform (6).

3. A portal pier beam construction formwork according to claim 2, characterized in that: The top of the support platform (6) is provided with an assembly groove (601) for mounting the assembly block (5).

4. A portal pier crossbeam construction formwork according to claim 3, characterized in that: A plurality of second limiting grooves (602) are provided inside the assembly groove (601), and a plurality of second positioning columns (501) matching the plurality of second limiting grooves (602) are installed at the bottom end of the assembly block (5).

5. A portal pier crossbeam construction formwork according to claim 3, characterized in that: An adjusting pad (603) for adjusting the installation height of the column (4) is installed inside the assembly groove (601).

6. A portal pier crossbeam construction formwork according to claim 2, characterized in that: A placement groove for placing the pier column mortar retaining template (3) is provided at the top end of the assembly block (5).

7. A portal pier beam construction formwork according to claim 2, characterized in that: A plurality of reinforcement blocks (8) are connected between the top end of the support platform (6) and the side wall of the assembly block (5).

8. A portal pier crossbeam construction formwork according to claim 1, characterized in that: The pier column slurry retaining template (3) comprises two symmetrically arranged U-shaped templates (301), both side walls of the two U-shaped templates (301) are connected with ear plates (302), and the ear plates (302) of the two U-shaped templates (301) are connected by fasteners (303).

9. A portal pier beam construction formwork according to claim 1, characterized in that: The front and back sides of the pier column slurry retaining template (3) are both equipped with a No. 1 lifting lug (304); and the top end of the column (4) is equipped with a No. 2 lifting lug (402).

10. A portal pier beam construction formwork according to claim 1, characterized in that: A left support (102) and a right support (103) are installed at the top of the crossbeam (1), and a No. 1 backflow port (104) for filling concrete is provided at the top of each of the left support (102) and the right support (103); and a No. 2 backflow port (201) for filling concrete is provided at the top of the steel-concrete combined section (2).

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