Foundation pit profile steel support gap concrete pouring rapid formwork system

Abstract

The utility model relates to a foundation pit profile steel support gap concrete pouring rapid formwork system which comprises steel sheet piles, surrounding purlin brackets, gap concrete, steel surrounding purlins and inclined struts. The foundation pit profile steel support gap concrete pouring rapid formwork system is provided with a shaped enclosing purlin bracket formwork. The steel sheet piles are arranged on the edge of a foundation pit, the enclosing purlin corbels are arranged on the inner sides of the steel sheet piles, limiting grooves are formed in the front ends of the enclosing purlin corbels, and the steel enclosing purlins are arranged in the limiting grooves and serve as outer side formworks during gap concrete pouring. The steel circuit purlin bracket has the advantages that the steel circuit purlin is rapidly installed through the limiting groove formed in the bracket to serve as a side mold of gap concrete, the arc-shaped positioning plate arranged on the bottom mold is arranged in the arc-shaped positioning groove formed in the bearing plate, and meanwhile, the bolt penetrates through the arc-shaped connecting plate, so that it is guaranteed that the circuit purlin bracket is firmly and reliably connected with the bottom mold.

Description

Technical Field

[0001] The utility model relates to the field of gap concrete pouring formwork, in particular to a foundation pit steel support gap concrete pouring rapid formwork system. Background Art

[0002] In recent years, my country has established a prestressed H-shaped steel support technology system based on the introduction, digestion and innovation, which has significant advantages such as energy saving, environmental protection and green construction. As an important part of the system, the quality of the gap concrete poured between the steel purlin and the retaining structure (such as steel sheet piles) has a direct impact on the stability of the support system. In actual construction, it was found that due to the presence of steel purlins, the formwork space was limited, resulting in low installation efficiency of the gap concrete formwork and poor formwork quality, resulting in average gap concrete forming quality.

[0003] Therefore, it is very important to seek a gap concrete pouring formwork system with high construction efficiency and simple formwork installation and assembly. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a quick formwork system for pouring concrete in the gap of foundation pit steel support.

[0005] The rapid formwork system for pouring concrete in the gap of the foundation pit steel support comprises steel sheet piles, purlin brackets, gap concrete, steel purlins and diagonal braces; the rapid formwork system for pouring concrete in the gap of the foundation pit steel support is provided with a standardized purlin bracket formwork;

[0006] The steel sheet piles are set at the edge of the foundation pit, and the inner side of the steel sheet piles is provided with a purlin bracket. A limit groove is provided at the front end of the purlin bracket. The steel purlin is placed in the limit groove. The steel purlin serves as the outer formwork for pouring the gap concrete.

[0007] The bottom formwork is supported in the foundation pit by adjustable support rods. The two ends of the bottom formwork are respectively fixed on the two adjacent purlin corbels, serving as the bottom formwork for pouring gap concrete. The top of the diagonal brace is fixed on the side of the bottom formwork, and the bottom is fixed in the foundation pit.

[0008] Preferably, the perimeter purlin corbels are bolted to the steel sheet piles at uniform intervals, and the perimeter purlin corbels include a pressure-bearing plate and a stiffening plate; the steel perimeter purlin is placed in a limiting groove formed by a groove at the front end of the pressure-bearing plate.

[0009] Preferably, arc-shaped positioning plates are symmetrically arranged at both ends of the bottom mold, and arc-shaped positioning grooves are provided at the rear end of the bearing plate. The arc-shaped positioning plates at both ends of the bottom mold are respectively placed in the arc-shaped positioning grooves provided at the rear end of the bearing plate. Arc-shaped connecting plates are welded on both the bottom mold and the bearing plate, and the arc-shaped connecting plates are connected by bolts to connect the collar corbel with the bottom mold. A sleeve is arranged on the side of the bottom mold, the top end of the inclined strut is inserted into the sleeve arranged on the side of the bottom mold, and a fixing plate is welded at the bottom end, and the fixing plate is fixed in the foundation pit.

[0010] Preferably, the bottom mold is further provided with a handle and adjustable support rods. The handle is arranged on the side of the bottom mold away from the steel sheet pile, and the adjustable support rods are arranged at the bottoms of the four corners of the bottom mold. Pulleys are installed at the bottoms of the adjustable support rods.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1) The present utility model sets a standardized collar corbel for rapid formwork support. The steel collar is quickly installed as the side formwork of the gap concrete by using the limit grooves provided on the corbel. The arc-shaped positioning plates arranged on the bottom mold are placed in the arc-shaped positioning grooves arranged on the bearing plate. At the same time, bolts are passed through the arc-shaped connecting plates to ensure that the connection between the collar corbel and the bottom mold is firm and reliable.

[0013] 2) The present utility model is convenient to move and has a stable system. On the one hand, the bottom mold is quickly moved by using the handle and pulleys. On the other hand, the adjustable support rods and the inclined struts together serve as the support system of the bottom mold to ensure the stable force and stable and safe structure of the formwork system. Description of the Drawings

[0014] Figure 1 is a structural schematic diagram of a rapid formwork support system for pouring gap concrete of a foundation pit steel support;

[0015] Figure 2 is a structural schematic diagram before the collar corbel and the bottom mold are assembled;

[0016] Figure 3 is a structural schematic diagram after the collar corbel and the bottom mold are assembled and installed.

[0017] Description of the reference numerals: 1 - fixing plate, 2 - steel sheet pile, 3 - collar corbel, 4 - gap concrete, 5 - steel collar, 6 - inclined strut, 7 - stiffening plate, 8 - limit groove, 9 - bearing plate, 10 - arc-shaped positioning groove, 11 - arc-shaped positioning plate, 12 - arc-shaped connecting plate, 13 - sleeve, 14 - bottom mold, 15 - handle, 16 - adjustable support rod. Detailed Embodiments

[0018] The following further describes the present utility model in conjunction with embodiments. The description of the following embodiments is only used to help understand the present utility model. It should be noted that for ordinary persons in the technical field, without departing from the principle of the present utility model, several modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

[0019] As an embodiment, as Figures 1 to 3 shown, the rapid formwork support system for pouring concrete in the gap of foundation pit steel supports includes a fixing plate 1, a steel sheet pile 2, a collar corbel 3, gap concrete 4, a steel collar 5, a diagonal brace 6, a stiffening plate 7, a limiting groove 8, a bearing plate 9, an arc-shaped positioning groove 10, an arc-shaped positioning plate 11, an arc-shaped connecting plate 12, a sleeve 13, a bottom formwork 14, a handle 15, and an adjustable support rod 16; the rapid formwork support system for pouring concrete in the gap of foundation pit steel supports is provided with a standardized collar corbel 3 formwork.

[0020] The steel sheet pile 2 is arranged at the edge of the foundation pit. A collar corbel 3 is arranged inside the steel sheet pile 2. A limiting groove 8 is opened at the front end of the collar corbel 3. The steel collar 5 is placed in the limiting groove 8. The steel collar 5 serves as the outer formwork during the pouring of the gap concrete 4.

[0021] The bottom formwork 14 is supported in the foundation pit by adjustable support rods 16. Both ends of the bottom formwork 14 are respectively fixed on two adjacent collar corbels 3 and serve as the bottom formwork during the pouring of the gap concrete 4. The top end of the diagonal brace 6 is fixed to the side of the bottom formwork 14, and the bottom end is fixed in the foundation pit.

[0022] The collar corbels 3 are welded to the steel sheet pile 2 at uniform intervals. The corbel is composed of a bearing plate 9 and a stiffening plate 7 welded together; the steel collar 5 is placed in the limiting groove 8 formed by grooving at the front end of the bearing plate 9 and acts as the outer formwork during the pouring of the gap concrete 4 to ensure the dense pouring of the concrete.

[0023] Arc-shaped positioning plates 11 are symmetrically arranged at both ends of the bottom formwork 14. An arc-shaped positioning groove 10 is provided at the rear end of the bearing plate 9. The arc-shaped positioning plates 11 at both ends of the bottom formwork 14 are respectively placed in the arc-shaped positioning grooves 10 provided at the rear end of the bearing plate 9. At the same time, bolts are used to pass through the bottom formwork 14 and the arc-shaped connecting plates 12 welded on the bearing plate 9, and the arc-shaped connecting plates 12 are connected by bolts to ensure the firm and reliable connection between the collar corbel 3 and the bottom formwork 14; the top end of the diagonal brace 6 is inserted into the sleeve 13 provided on the side of the bottom formwork 14, and the bottom end is welded to the fixing plate 1 and fixed in the foundation pit.

[0024] The bottom formwork 14 is also provided with a handle 15 and four adjustable support rods 16 equipped with pulleys. The handle 15 is arranged on the side of the bottom formwork 14 away from the steel sheet pile 2, and the adjustable support rods 16 are arranged at the bottoms of the four corners of the bottom formwork 14. Pulleys are installed at the bottoms of the adjustable support rods 16. On the one hand, the handle 15 and the pulleys are used to facilitate the movement of the bottom formwork 14. On the other hand, the adjustable support rods 16 and the inclined braces 6 together serve as the support system for the bottom formwork 14 to ensure the stability and safety of the formwork system.

[0025] Before pouring the interstitial concrete 4, install the steel waling 5 as the side formwork by using the limit grooves 8 arranged on the waling corbels 3. Push the bottom formwork 14 into the construction site by using the handle 15 and the pulleys, then adjust the height of the adjustable support rods 16 to install the bottom formwork 14, make the connection between the waling corbels 3 and the bottom formwork 14 reliable by bolt connection, and install the inclined braces 6 to form the formwork system for the interstitial concrete. Finally, pour the interstitial concrete 4.

Claims

1. A rapid formwork system for pouring concrete in the gap between steel support holes in a foundation pit, characterized in that: It includes steel sheet piles, purlin corbels, gap concrete, steel purlins and diagonal braces; the foundation pit steel support gap concrete pouring rapid formwork system is provided with a standardized purlin corbel formwork; The steel sheet piles are set at the edge of the foundation pit, and the inner side of the steel sheet piles is provided with a purlin bracket. A limit groove is provided at the front end of the purlin bracket. The steel purlin is placed in the limit groove. The steel purlin serves as the outer formwork for pouring the gap concrete. The bottom formwork is supported in the foundation pit by adjustable support rods. The two ends of the bottom formwork are respectively fixed on the two adjacent purlin corbels, serving as the bottom formwork for pouring gap concrete. The top of the diagonal brace is fixed on the side of the bottom formwork, and the bottom is fixed in the foundation pit.

2. The rapid formwork system for pouring concrete in the gap between steel support holes of foundation pit according to claim 1 is characterized in that: The purlin corbels are bolted to the steel sheet piles at uniform intervals, and the purlin corbels include a pressure plate and a stiffening plate; the steel purlin is placed in a limiting groove formed by a groove at the front end of the pressure plate.

3. The rapid formwork system for pouring concrete in the gap between steel support holes of foundation pit according to claim 1 is characterized in that: Arc-shaped positioning plates are symmetrically arranged at both ends of the bottom mold, and an arc-shaped positioning groove is arranged at the rear end of the pressure plate. The arc-shaped positioning plates at both ends of the bottom mold are respectively placed in the arc-shaped positioning grooves arranged at the rear end of the pressure plate. Arc-shaped connecting plates are welded on the bottom mold and the pressure plate, and the arc-shaped connecting plates are connected by bolts to connect the purlin corbels to the bottom mold; a sleeve is arranged on the side of the bottom mold, and the top end of the diagonal brace is inserted into the sleeve arranged on the side of the bottom mold, and a fixing plate is welded at the bottom end, and the fixing plate is fixed in the foundation pit.

4. The rapid formwork system for pouring concrete in the gap between steel support holes of foundation pit according to claim 1 is characterized in that: The bottom mold is also provided with a handle and an adjustable support rod. The handle is arranged on the side of the bottom mold away from the steel sheet pile, and the adjustable support rod is arranged at the bottom of the four corners of the bottom mold. A pulley is installed at the bottom of the adjustable support rod.

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