One-time pouring waterproof concrete upturning beam formwork support construction structure

Abstract

The utility model relates to a waterproof concrete upturning beam construction structure, in particular to a one-time pouring waterproof concrete upturning beam formwork support construction structure. The structure comprises an upturning beam formwork support, an upturning beam formwork, upturning beam steel bars and main body floor steel bars, the upturning beam steel bars are located above the main body floor steel bars, and the upturning beam formwork is located on the outer sides of the upturning beam steel bars; upturning beam formwork supports are arranged in the length direction of the upturning beam steel bars at intervals; the upturning beam formwork support comprises transverse steel bars, formwork limiting steel bars, side vertical steel bars, longitudinal supporting steel bars and transverse supporting steel bars, and upturning beam steel bars are supported and contained between the two formwork limiting steel bars. The upturning beam template is accommodated between the template limiting steel bars and the side vertical steel bars; the longitudinal supporting steel bars and the transverse supporting steel bars are welded to the main floor steel bars correspondingly. And the upturning beam reinforcing steel bars and the main body floor reinforcing steel bars are cast once to form the upturning beam and the main body floor. The problems that the construction of the secondary structure of the upturning beam is time-consuming, labor-consuming and labor-consuming, the construction period is not shortened, and the water stopping effect is not ideal are solved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a construction structure of a waterproof concrete up-turned beam. Background Technique

[0002] An up-turned beam means that the bottom surface of the beam is at the same elevation as the bottom surface of the cast-in-place slab, and a down-turned beam means that the top surface of the beam is at the same elevation as the top surface of the cast-in-place slab. The popular saying is that a beam above the slab is called an up-turned beam, and a beam below the slab is called a down-turned beam. If the upper bottom surface of the beam is higher than the upper plane of the adjacent floor slab, it is called an up-turned beam. There are many up-turned beams at the peripheral window frame parts of the shear wall structure. When the frame beam is up-turned, the two end frame columns should extend to the beam top elevation together. Compared with the ordinary frame beam, only the span information changes, and at the same time, it may affect the construction method of the adjacent non-up-turned frame beam-column joints; in principle, there is no essential difference between the up-turned coupling beam and the non-up-turned one, but attention should be paid to whether the width of the coupling beam changes when crossing floors.

[0003] At present, the waterproof concrete up-turned beam is generally constructed secondly after the structural construction is completed, and the secondary structure is re-set out, formwork is supported, and concrete is poured. The number of waterproof concrete up-turned beams is relatively large, and generally the width is small. The secondary structure construction is time-consuming, laborious and labor-intensive, which is not conducive to shortening the construction period, and the water stop effect is not ideal. During the pouring process, situations such as concrete bulging formwork and exploding formwork are likely to occur, increasing the workload of secondary repair. Summary of the Invention

[0004] The utility model provides a construction structure of a formwork support for a waterproof concrete up-turned beam with one-time pouring, which solves the problems that the secondary structure construction of the up-turned beam is time-consuming, laborious and labor-intensive, is not conducive to shortening the construction period, and the water stop effect is not ideal.

[0005] To solve the above problems, the utility model adopts the following technical scheme: a construction structure of a formwork support for a waterproof concrete up-turned beam with one-time pouring, which consists of an up-turned beam formwork support, an up-turned beam formwork, up-turned beam steel bars and main floor slab steel bars. The up-turned beam steel bars are located above the main floor slab steel bars, and the up-turned beam formwork is located outside the up-turned beam steel bars; the up-turned beam formwork supports are arranged at intervals along the length direction of the up-turned beam steel bars;

[0006] The up-turned beam formwork support includes horizontal steel bars, formwork limit steel bars, side vertical steel bars, longitudinal support steel bars and transverse support steel bars. The two side vertical steel bars are vertically arranged on both sides, and one horizontal steel bar is horizontally arranged. The two ends of the horizontal steel bar are respectively welded to the middle parts of the side vertical steel bars; the horizontally arranged longitudinal support steel bars and transverse support steel bars are respectively welded to the lower ends of the two side vertical steel bars; the lower ends of the two vertically arranged formwork limit steel bars are welded to the horizontal steel bar;

[0007] The reinforcement of the upward-turning beam is supported and accommodated between two formwork limit reinforcement bars; the formwork of the upward-turning beam is accommodated between the formwork limit reinforcement bars and the side vertical reinforcement bars; the longitudinal support reinforcement bars are perpendicular to the horizontal reinforcement bars, and the transverse support reinforcement bars are parallel to the horizontal reinforcement bars; the longitudinal support reinforcement bars and the transverse support reinforcement bars are respectively welded to the main floor slab reinforcement bars; the reinforcement of the upward-turning beam and the main floor slab reinforcement bars are cast in one go to form the upward-turning beam and the main floor slab.

[0008] Furthermore, the construction structure of the formwork support for the waterproof concrete upward-turning beam with one-time casting of the present utility model also has the following characteristics: the two formwork limit reinforcement bars are symmetrically arranged left and right with the perpendicular line of the center point of the horizontal reinforcement bar as the axis of symmetry.

[0009] Furthermore, the construction structure of the formwork support for the waterproof concrete upward-turning beam with one-time casting of the present utility model also has the following characteristics: galvanized pressing rings are respectively fixed below the welding points of the horizontal reinforcement bars and the side vertical reinforcement bars on the two side vertical reinforcement bars, and the galvanized pressing rings are stuck on the upper surface of the main structure formwork.

[0010] The present utility model has the following advantages:

[0011] 1. The construction of the upward-turning beam and the main floor slab is carried out by one-time casting, avoiding the problems of the secondary casting structure requiring two setting-outs, formwork support, and pouring, with unsatisfactory water-stop effect, easy occurrence of concrete bulging and form explosion during the pouring process, and increased secondary repair workload.

[0012] 2. It saves working hours, labor, and costs, and is conducive to shortening the construction period.

[0013] 3. The water-stop effect of the upward-turning beam and the main floor slab with one-time casting is good. Description of the Drawings

[0014] Figure 1 is the schematic structural diagram of the formwork support for the upward-turning beam of the present utility model;

[0015] Figure 2 is the cooperation diagram of a formwork support for the upward-turning beam, the formwork of the upward-turning beam, and the reinforcement of the upward-turning beam;

[0016] Figure 3 is the cooperation diagram of multiple formwork supports for the upward-turning beam, the formwork of the upward-turning beam, and the reinforcement of the upward-turning beam;

[0017] Figure 4 is the cooperation diagram of the formwork support for the upward-turning beam, the formwork of the upward-turning beam, the reinforcement of the upward-turning beam, and the main floor slab reinforcement bars.

[0018] Symbol description in the figure: formwork support for the upward-turning beam A, horizontal reinforcement bar 1, formwork limit reinforcement bar 2, side vertical reinforcement bar 3, longitudinal support reinforcement bar 4, transverse support reinforcement bar 5, galvanized pressing ring 6, stirrup for the reinforcement of the upward-turning beam 7, formwork of the upward-turning beam 8, reinforcement of the upward-turning beam 9, main floor slab reinforcement bar 10. Detailed Implementation Modes

[0019] The following uses the best embodiments to describe the present invention in detail.

[0020] As Figures 1-4 shown, the construction structure of the up-turned beam formwork support for one-time cast waterproof concrete consists of the up-turned beam formwork support A, the up-turned beam formwork 8, the up-turned beam steel bars 9 and the main floor slab steel bars 10. The up-turned beam steel bars 9 are located above the main floor slab steel bars 10, and the up-turned beam formwork 8 is located outside the up-turned beam steel bars 9. The up-turned beam steel bars 9 are provided with up-turned beam steel bar hoops 7 along the length direction, and the up-turned beam formwork supports A are arranged at intervals along the length direction of the up-turned beam steel bars 9, so as to fix the up-turned beam steel bars 9 above the main floor slab steel bars 10. The up-turned beam formwork support includes a horizontal steel bar 1, a formwork limit steel bar 2, a side vertical steel bar 3, a longitudinal support steel bar 4 and a transverse support steel bar 5. Two side vertical steel bars 3 are vertically arranged on both sides, and a horizontal steel bar 1 is horizontally arranged. The two ends of the horizontal steel bar 1 are respectively welded to the middle parts of the side vertical steel bars 3. The horizontally arranged longitudinal support steel bar 4 and the transverse support steel bar 5 are respectively connected to the lower ends of the two side vertical steel bars 3. The longitudinal support steel bar 4 is perpendicular to the horizontal steel bar 1, and the transverse support steel bar 5 is parallel to the horizontal steel bar 1. The lower ends of the two vertically arranged formwork limit steel bars 2 are welded to the horizontal steel bar 1, and the two formwork limit steel bars 2 are symmetrically arranged left and right with the perpendicular line of the center point of the horizontal steel bar 1 as the axis of symmetry. The up-turned beam steel bars 9 are supported and accommodated between the two formwork limit steel bars 2. The up-turned beam formwork 8 is accommodated between the formwork limit steel bar 2 and the side vertical steel bar 3. The longitudinal support steel bar 4 and the transverse support steel bar 5 are respectively welded to the main floor slab steel bars 10. The horizontal steel bar 1, the formwork limit steel bar 2, the side vertical steel bar 3, the longitudinal support steel bar 4 and the transverse support steel bar 5 are cast in the up-turned beam and the main floor slab formed by one-time casting. After casting, the upper parts of the side vertical steel bars 3 are exposed above the floor slab and can be removed.

[0021] Galvanized compression rings 6 are respectively fixed below the welding points of the horizontal steel bar 1 and the side vertical steel bars 3 on the two side vertical steel bars 3. The galvanized compression rings 6 are stuck on the upper surface of the main structure formwork (the main structure formwork is located above the main floor slab steel bars 10, omitted in the figure) to achieve positioning.

[0022] The advantages of the present invention are as follows:

[0023] 1. The up-turned beam formwork support composed of a horizontal steel bar, a formwork limit steel bar, a side vertical steel bar, a longitudinal support steel bar and a transverse support steel bar is used to support and accommodate the up-turned beam steel bars and the up-turned beam formwork.

[0024] 2. The longitudinal and transverse support steel bars of the up-turned beam formwork support are respectively welded to the main floor slab steel bars, which connects the main floor slab steel bars and the up-turned beam steel bars together; this enables the simultaneous pouring of the waterproof concrete up-turned beam and the floor slab structure, avoiding the formation of a construction joint due to secondary pouring. The synchronous construction of the waterproof concrete up-turned beam and the floor slab structure reduces secondary formwork and lowers the construction cost of the project. By using the synchronous construction technology of the waterproof concrete up-turned beam water stop wall and the floor slab structure, pollution caused by secondary construction can be effectively controlled, and green construction can be practiced. At the same time, the self-waterproof ability of the waterproof concrete up-turned beam structure is improved, effectively reducing the occurrence of water seepage from the waterproof concrete up-turned beam into adjacent waterless rooms.

[0025] 3. The up-turned beam formwork support is a stable support structure, and all its components are welded to each other, thus forming an integral structure. The longitudinal and transverse support steel bars are perpendicular to each other, forming a T-shaped structure. As is well known, the T-shaped structure is a stable structure, and this T-shaped structure is located below the up-turned beam formwork support welded into one body, providing a stable structure. During the overall pouring, the concrete will have an impact on the up-turned beam formwork support, and this structure ensures stability, thereby guaranteeing the construction quality.

[0026] 4. The longitudinal and transverse support steel bars mainly play a role in connecting with the main steel bars. The longitudinal and transverse support steel bars are perpendicular to each other and can be respectively welded to multiple longitudinal and transverse main steel bars, making the structure more stable, and thus providing a stable support structure for the up-turned beam formwork and the steel bars and concrete thereon.

[0027] 5. Using waste short steel bars on the construction site to make the up-turned beam formwork support saves materials.

[0028] The utility model is applicable to the construction of waterproof concrete up-turned beams. Its technological principle is: during the construction of the main floor slab, when binding the steel bars of the waterproof concrete up-turned beam, a steel bar support is made as the support for the up-turned beam formwork, and it is welded to the floor slab steel bars. The width of the formwork is controlled, and galvanized compression rings are used on both sides of the bottom of the support to connect with the floor slab formwork to ensure accurate positioning of the bottom of the support. With this technology, the up-turned beam and the main floor slab are poured simultaneously, and the up-turned beam and the main body are connected into one body to enhance the waterproof effect and ensure the integrity of the concrete components of the floor slab.

[0029] Through continuous experiments, the utility model adopts the one-time pouring of the waterproof concrete up-turned beam along with the main structure, avoiding secondary formwork and concrete pouring, and effectively enhancing the self-waterproof ability of the waterproof concrete up-turned beam structure. Considering various factors, with the development of China's energy industry and construction industry, it will be a very promising construction technology.

Claims

1. The construction structure of the formwork support for the upward-turning beam of waterproof concrete cast in one go, characterized in that, It consists of an upward-turning beam formwork support, an upward-turning beam formwork, upward-turning beam steel bars and main floor slab steel bars. The upward-turning beam steel bars are located above the main floor slab steel bars, and the upward-turning beam formwork is located outside the upward-turning beam steel bars. The upward-turning beam formwork supports are arranged at intervals along the length direction of the upward-turning beam steel bars. The upward-turning beam formwork support includes transverse steel bars, formwork limit steel bars, side vertical steel bars, longitudinal support steel bars and transverse support steel bars. Two side vertical steel bars are vertically arranged on both sides, and one transverse steel bar is horizontally arranged. The two ends of the transverse steel bar are respectively welded to the middle parts of the side vertical steel bars. The horizontally arranged longitudinal support steel bars and transverse support steel bars are respectively welded to the lower ends of the two side vertical steel bars. The lower ends of the two vertically arranged formwork limit steel bars are welded to the transverse steel bar. The upward-turning beam steel bars are supported and accommodated between the two formwork limit steel bars; the upward-turning beam formwork is accommodated between the formwork limit steel bars and the side vertical steel bars; the longitudinal support steel bars are perpendicular to the transverse steel bar, and the transverse support steel bars are parallel to the transverse steel bar; the longitudinal support steel bars and the transverse support steel bars are respectively welded to the main floor slab steel bars; the longitudinal support steel bars and the transverse support steel bars are cast in the upward-turning beam and the main floor slab formed by one-time casting.

2. The formwork support construction structure of the waterproof concrete up-turned beam cast in one go as described in claim 1, characterized in that, The two formwork limit steel bars are symmetrically arranged left and right with the perpendicular line of the center point of the transverse steel bar as the axis of symmetry.

3. The formwork support construction structure of the waterproof concrete up-turned beam cast in one go as described in claim 1, wherein Galvanized compression rings are respectively fixed on the two side vertical steel bars below the welding points of the transverse steel bar and the side vertical steel bars, and the galvanized compression rings are clamped on the upper surface of the main structure formwork.

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