Construction tool for side span closure section of continuous beam

Abstract

The utility model discloses a continuous beam side span closure segment construction frock, frock includes side span closure segment gallows and side span cast -in -place section support, and side span closure segment gallows is by side span closure segment gallows main girder, side span closure segment gallows distribution girder and side span closure segment gallows cushion beam is composed, and side span closure segment gallows distribution girder installs in the inside of side span closure segment gallows main girder, and side span closure segment gallows cushion beam installs in the inside of main girder, and side span closure segment gallows main girder is connected with the beam face cushion block of main girder top through the fine rolled threaded steel, and side span closure segment gallows distribution girder is connected with side span closure segment gallows cushion beam through the fine rolled threaded steel, and side span closure segment gallows main girder is connected with the side span cast -in -place section support main girder of side span cast -in -place section support of side span closure segment gallows. The utility model has the advantages of: through the side span cast -in -place section support of side span closure segment gallows fixed on the side span cast -in -place section support, realized the organic combination of support method and special gallows method, saved the material, and effectively improved the construction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of closure segment construction, and in particular to a construction tool for the closure segment of a continuous beam side span. Background Technology

[0002] The side span cast-in-place section is generally constructed using the scaffolding method, which involves directly erecting a support structure (steel pipe, Bailey bridge, etc.) on the ground to serve as a load-bearing platform for the cast-in-place concrete. The closure section is generally constructed using the special hanger method, which involves suspending the cast-in-place beam section through hangers (steel trusses) to serve as a temporary support platform for the closure section.

[0003] Under current technology, the scaffolding method and the special hanger method are usually used separately and cannot be organically combined, resulting in a lot of material waste and slow construction. Therefore, how to organically combine the scaffolding method and the special hanger method is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this utility model is to provide a construction tooling for the closure section of a continuous beam side span, which is based on the shortcomings of the prior art. The tooling consists of a side span closure section hanger and a side span cast-in-place section support. By fixing the side span closure section hanger to the side span cast-in-place section support, the support method and the special hanger method are organically combined.

[0005] The objective of this utility model is achieved through the following technical solution: A construction fixture for the closure section of a continuous beam side span includes a side span closure section hanger and a side span cast-in-place section support. The side span closure section hanger consists of a main beam, a distribution beam, and a pad beam. The distribution beam is installed inside the main beam, and the pad beam is installed inside the main beam. The main beam is connected to a beam surface pad at the top of the main beam via precision-rolled threaded steel bars. The distribution beam is connected to the pad beam via precision-rolled threaded steel bars. The main beam is connected to the main beam of the side span cast-in-place section support.

[0006] The tooling also includes a side span closure section template and a side span cast-in-place section bottom template. The side span closure section template consists of a side span closure section bottom template, a side span closure section side template, and a side span closure section inner template. One longitudinal end of the side span closure section bottom template is connected to the side span cast-in-place section bottom template, and the other longitudinal end is attached to the bottom of the main beam.

[0007] The bottom formwork of the side span cast-in-place section is installed on the main beam of the side span cast-in-place section support via I-beams.

[0008] The bottom formwork of the side span closure section is installed on the main beam of the side span closure section hanger via I-beams.

[0009] The advantages of this utility model are: by fixing the side span closure section hanger to the side span cast-in-place section support, the support method and the special hanger method are organically combined, saving materials and effectively improving construction efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the tooling of this utility model; Figure 2 for Figure 1 Cross-sectional view of AA in the middle; Figure 3 for Figure 1 Cross-sectional view of BB in the middle; Figure 4 This is a schematic diagram showing the connection between the side span closure section hanger and the side span cast-in-place section support of this utility model; Figure 5 This is a schematic diagram of step S1 of the tooling construction method of this utility model; Figure 6 This is a schematic diagram of step S2 of the tooling construction method of this utility model; Figure 7 This is a schematic diagram of step S3 in the tooling construction method of this utility model; Figure 8 This is a schematic diagram of step S4 in the tooling construction method of this utility model; Figure 9 This is a schematic diagram of step S5 in the tooling construction method of this utility model; Figure 10 This is a schematic diagram of step S6 in the tooling construction method of this utility model; Figure 11 This is a schematic diagram of step S7 of the tooling construction method of this utility model; Figure 12 This is a schematic diagram of step S8 in the tooling construction method of this utility model; like Figures 1-12 As shown in the figure, the labels represent: Side span closure section hanger 10, side span closure section hanger main beam 101, side span closure section hanger distribution beam 102, side span closure section hanger pad beam 103, precision rolled threaded steel 104, side span cast-in-place section support 20, side span cast-in-place section support main beam 201, main beam 30, beam surface pad block 301, 0# block 302, side span closure section bottom formwork 40, side span cast-in-place section bottom formwork 50, I-beam 60, main pier 70, hanging basket 80, side span cast-in-place section 90, winch 100, counterweight water tank 110, side span closure section 120, flatbed transport vehicle 130. Detailed Implementation

[0011] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art: Example: Figures 1-4 As shown, this embodiment relates to a construction fixture for the closure section of a continuous beam side span. This fixture mainly includes a side span closure section hanger 10, a side span cast-in-place section support 20, a side span closure section formwork, and a side span cast-in-place section bottom formwork 50. The side span closure section hanger 10 consists of a main beam 101, a distribution beam 102, and a pad beam 103. The distribution beam 102 is installed inside the main beam 101, and the pad beam 103... Installed inside the main beam 30, the side span closure section hanger main beam 101 is connected to the beam surface pad 301 on the top of the main beam 30 via a fine-rolled threaded steel bar 104. The side span closure section hanger distribution beam 102 is connected to the side span closure section hanger pad beam 103 via a fine-rolled threaded steel bar 104. The setting of the fine-rolled threaded steel bar 104 realizes the effective connection between the side span closure section hanger 10 and the main beam 30. The side span closure section hanger main beam 101 is connected to the side span cast-in-place section support main beam 201 of the side span cast-in-place section support 20.

[0012] like Figures 1-4 As shown, the side span closure section formwork consists of a bottom formwork 40, side formwork, and inner formwork. This formwork is used for casting the side span closure section 120. One longitudinal end of the bottom formwork 40 is connected to the bottom formwork 50 of the cast-in-place side span section, and the other longitudinal end is attached to the bottom of the main beam 30. The bottom formwork 50 is installed on the main beam 201 of the cast-in-place side span support via I-beams 60. The I-beams 60 and the main beam 201 support the bottom formwork 50. The bottom formwork 40 is also installed on the main beam 101 of the side span closure section hanger via I-beams 60. Both the I-beams 60 and the main beam 101 support the bottom formwork 40.

[0013] like Figures 1-12 As shown, this embodiment also includes the following construction methods: S1: As Figure 5 As shown, construction of block 0# 302, main pier 70 and block 0# 302 (main beam 30) are fixed together, and the hanging basket 80 is symmetrically cantilevered from block 1# towards the side span and the middle span. Install the side span cast-in-place section support 20, and pour the side span cast-in-place section 90.

[0014] S2: As Figure 6As shown, after the symmetrical cantilever construction of the hanging basket 80 completes the last segment of the side span, two winches 100 are installed. The two winches 100 work together to dismantle the formwork system of the hanging basket 80. The wire rope of the winch 100 passes around the steering device of the upper front crossbeam of the hanging basket 80 and is lowered to the ground to lift the side span closure section hanger support beam 103. The side span closure section hanger support beam 103 is transported by a flatbed transport vehicle 130.

[0015] S3: As Figure 7 As shown, the winch 100 lifts the side span closure section hanger pad beam 103, the operator stands inside the main beam 30, and pulls the side span closure section hanger pad beam 103 to the design position.

[0016] S4: As Figure 8 As shown, winch 100 lifts the first section of the side span closure segment main beam 101 to the designed position and connects it with the side span cast-in-place segment support main beam 201.

[0017] S5: As Figure 9 As shown, winch 100 lifts the second side span closure section main beam 101 (with a side span closure section distribution beam 102 inside).

[0018] S6: As Figure 10 As shown, the second side span closure section hanger main beam 101 is connected to the first side span closure section hanger main beam 101.

[0019] S7: As Figure 11 As shown, the side span closure section hanger pad beam 103 and the side span closure section hanger distribution beam 102 are connected by precision-rolled threaded steel bars 104 and pre-tightened to form the rear support point of the hanger. The side span closure section formwork is then installed.

[0020] S8: As Figure 12 As shown, the main truss and winch 100 of the hanging basket 80 are dismantled, and the counterweight water tank 110 is installed. Temporary rigid connections for the side span closure section are installed, reinforcing bars are tied, and prestressed ducts are installed. Concrete for the side span closure section is poured, and water in the counterweight water tank 110 is released simultaneously for curing and prestressing. The connection between the main pier 70 and block 302 (main beam 30) is released, and cantilever construction continues in the middle span.

[0021] The beneficial technical effects of this embodiment are as follows: by fixing the side span closure section hanger to the side span cast-in-place section support, the support method and the special hanger method are organically combined, saving materials and effectively improving construction efficiency.

[0022] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A construction tooling for the closure section of a continuous beam side span, characterized in that... The fixture includes a side span closure section hanger and a side span cast-in-place section support. The side span closure section hanger consists of a main beam, a distribution beam, and a pad beam. The distribution beam is installed inside the main beam, and the pad beam is installed inside the main beam. The main beam is connected to a beam surface pad at the top of the main beam via precision-rolled threaded steel bars. The distribution beam is connected to the pad beam via precision-rolled threaded steel bars. The main beam is connected to the main beam of the side span cast-in-place section support.

2. The construction tooling for the closure section of a continuous beam side span as described in claim 1, characterized in that... The tooling also includes a side span closure section template and a side span cast-in-place section bottom template. The side span closure section template consists of a side span closure section bottom template, a side span closure section side template, and a side span closure section inner template. One longitudinal end of the side span closure section bottom template is connected to the side span cast-in-place section bottom template, and the other longitudinal end is attached to the bottom of the main beam.

3. The construction tooling for the closure section of a continuous beam side span as described in claim 2, characterized in that... The bottom formwork of the side span cast-in-place section is installed on the main beam of the side span cast-in-place section support via I-beams.

4. The construction tooling for the closure section of a continuous beam side span as described in claim 2, characterized in that... The bottom formwork of the side span closure section is installed on the main beam of the side span closure section hanger via I-beams.

Images