Rock wall beam concrete hole-free formwork supporting system

Abstract

The utility model relates to a rock wall beam concrete hole-free formwork supporting system which solves the problems that rock wall beam concrete brace holes influence the appearance quality and a traditional formwork supporting system restricts the construction progress. The vertical formwork and the vertical rock wall form a rock wall beam concrete pouring groove, the slope formwork and the slope rock wall form a rock wall beam concrete pouring groove, a first horizontal brace is arranged outside the upper portion of the concrete pouring groove, and a second horizontal brace is arranged outside the lower portion of the concrete pouring groove. The two ends of the second brace set are fixed to anchor rods which are fixed to the corresponding positions of a vertical surrounding purlin and a vertical rock wall respectively, and a formwork supporting frame which is located under a rock wall beam concrete pouring groove and used for supporting an inclined face formwork is located on a profile steel triangular frame. A construction scaffold of the operation platform is located on the outer side of the rock wall beam concrete pouring groove, the formwork supporting frame and the profile steel triangular frame. Manufacturing is easy, installation is convenient, cost is low, safety and reliability are achieved, and concrete appearance quality is good.

Description

Technical Field

[0001] The utility model relates to a concrete formwork supporting device used for pouring rock wall beam concrete. Background Art

[0002] With the deep development of hydropower stations, the terrain is steep and the river channel is narrow. After technical and economic comparison, the underground main powerhouse has become the first choice. The rated load of the bridge crane of large and medium-sized hydropower stations can reach 1000t, and the maximum vertical wheel pressure can reach 100t. The foundation of the bridge crane of the underground main powerhouse is generally in the form of a rock wall beam. The rock wall beam bears the load from the bridge crane and transmits it to the inclined rock platform of the rock wall beam. The concrete construction quality requirements are high. The concrete of the cantilever structure of the rock wall beam must reach 100% strength or 28 days of age before the bottom formwork and support system can be removed. If ordinary formwork and support system are used, load-bearing scaffolding support is set up on the lower foundation, occupying the construction site, and the construction period is long. The bottom and side of the concrete need to be tied with rods to bear the concrete shaft pressure and lateral pressure. The rods need to pass through the formwork. The post-processing workload of the rod holes on the concrete surface is large, which affects the appearance quality of the concrete after processing, and it is difficult to achieve the effect of decoration-free concrete. Summary of the invention

[0003] The utility model aims to provide a rock wall beam concrete non-hole formwork support system which is simple to manufacture, convenient to install, low in cost, safe and reliable, ensures the appearance quality of concrete and is conducive to accelerating the construction progress.

[0004] The purpose of the utility model is achieved in this way: a rock wall beam concrete non-hole formwork support system, a vertical formwork 1 and an inclined formwork 2 used for rock wall beam concrete forming respectively form a rock wall beam concrete casting trough with the vertical rock wall and the inclined rock wall, a plurality of groups of purlins, tie bars, anchor rods, support frames, and tripods together form a formwork support system, a vertical purlin 3 and an inclined purlin 4 located outside the vertical formwork 1 and the inclined formwork 2 are connected to the formwork by the first and second hook bolts (3-1) and (4-1), a first horizontal tie bar 5 is provided on the upper part of the concrete casting trough, and a second horizontal tie bar 6 is provided on the lower part, The two ends of the first brace 5 are respectively fixed on the vertical purlin 3 and the anchor rod 7 at the corresponding position of the rock wall, the two ends of the second brace 6 are respectively fixed on the vertical purlin 3 and the anchor rod 7 at the corresponding position of the rock wall, the formwork support frame 8 for supporting the inclined formwork 2 located directly below the rock wall beam concrete is located on the steel tripod 9, the horizontal steel and inclined steel of the steel tripod 9 are respectively fixed on the anchor rod 7 at the corresponding position of the rock wall, and the construction scaffolding 10 of the working platform during the rock wall beam concrete construction period is located outside the rock wall beam concrete casting trough, the formwork support frame 8 and the steel tripod 9.

[0005] The lateral spacing between adjacent upper horizontal braces 5 and lower horizontal braces 6 is 50 cm or 75 cm.

[0006] The formwork support frame 8 is composed of a steel vertical pole 8-1, a steel horizontal pole 8-2, and a steel diagonal pole 8-3. The steel vertical pole 8-1 is placed on the lower steel tripod 9. The spacing between the steel vertical pole 8-1 and the steel tripod 9 is the same as 50cm or 75cm.

[0007] Multiple groups of steel tripods 9 are arranged horizontally. A single group of steel tripods 9 consists of cantilevered steel 9-1, steel diagonal braces 9-2, and vertical support steel 9-3. They are located directly below the formwork support frame 8 and are the main load-bearing structures. The steel tripods 9 are welded and fixed to the anchor rods 7 at the corresponding positions on the rock wall. The components of the steel tripods 9 are all fixed by welding. The spacing between adjacent steel tripods 9 is 50 cm or 75 cm.

[0008] The rock wall beam concrete formwork support system is a cantilever structure.

[0009] The construction scaffold 10 is composed of a vertical pole 10-1, a longitudinal horizontal pole 10-2, a transverse horizontal pole 10-3, a scissor brace 10-4, and a channel steel pad 10-5. As a working platform during the construction period, it is completely separated from the rock wall beam concrete formwork and the support system. The utility model is simple to manufacture, easy to install, low in cost, safe and reliable, and has a good appearance quality of concrete, which is conducive to speeding up the construction progress. In actual construction, according to the technical parameters such as the cross-sectional size of the rock wall beam, the sizes of the fixed formwork, the bracket, the upper horizontal brace, the lower horizontal brace, the bottom purlin and the vertical purlin are adjusted, and it can be widely used in various rock wall beam concrete lining operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0011] See also Figure 1The utility model rock wall beam concrete non-hole formwork support system includes a vertical formwork 1 and an inclined formwork 2 for forming rock wall beam concrete, a plurality of groups of purlins, tie bars, anchor rods, support frames, and tripods together form a formwork support system, a vertical purlin 3 and an inclined purlin 4 located outside the vertical formwork and the inclined formwork and connected to the inclined formwork, hook bolts 3-1 and 4-1 are used to connect the purlin and the formwork, an upper horizontal tie bar group 5 and a lower horizontal tie bar group 6 are used to support the vertical formwork to overcome the horizontal side pressure of concrete, and both ends of the tie bar group are respectively fixed on the vertical purlin 3 and the anchor rod 7 at the corresponding position of the rock wall, and are located directly below the rock wall beam concrete for supporting the inclined formwork The formwork support frame 8 for overcoming the vertical pressure of concrete is composed of steel vertical poles 8-1, steel horizontal poles 8-2, and steel diagonal poles 8-3; the steel tripod 9 located directly below the formwork support frame 8 includes cantilevered steel 9-1, steel diagonal braces 9-2, and vertical support steel 9-3. The steel tripod 9 is welded (weld 9-4) and fixed to the anchor rod 7 at the corresponding position of the rock wall, and the various components of the steel tripod 9 are welded and fixed (weld 9-5); the construction scaffold 10 serving as an operating platform during the rock wall beam concrete construction period is composed of vertical poles 10-1, longitudinal horizontal poles 10-2, transverse horizontal poles 10-3, scissor braces 10-4, and channel steel pads 10-5.

[0012] The two ends of multiple groups of upper horizontal braces 5 and lower horizontal braces 6 are respectively fixed on the vertical purlins 3 and the anchor rods 7 at the corresponding positions of the rock wall. The lateral spacing between adjacent upper horizontal braces 5, lower horizontal braces 6 and the anchor rods 7 at the corresponding positions is 50 cm or 75 cm.

[0013] The formwork support frame 8 is located directly below the rock wall beam concrete and is used to support the inclined template to overcome the vertical pressure of the concrete. The steel uprights 8-1 of the formwork support frame 8 are placed on the lower steel tripod 9. The spacing between the steel uprights 8-1 and the steel tripod 9 is the same as 50cm or 75cm. The vertical pressure of the rock wall beam concrete is transmitted to the steel tripod 9 through the formwork support frame 8. Multiple groups of steel tripods 9 are arranged horizontally. The steel tripod 9 is located directly below the formwork support frame 8 as the main force-bearing structure, and the spacing between adjacent steel tripods 9 is 50cm or 75cm.

[0014] The rock wall beam concrete formwork support system is a cantilever structure, which does not occupy the lower working surface and does not affect the subsequent construction below, which is conducive to speeding up the construction progress.

[0015] The construction scaffold 10 serves as a working platform during the construction period and is completely separated from the rock wall beam concrete formwork and the supporting system.

[0016] The method of making, installing and using this utility model is as follows:

[0017] (A) The rock wall beam concrete non-hole formwork support system is made by manufacturing inclined purlins, vertical purlins, tie rods, anchor rods, formwork support frames, and steel tripods. The raw materials are purchased according to the design drawings, and then cut and processed in the processing plant according to the design drawings. The formwork, hook bolts and square timber are purchased as finished products in the market.

[0018] (II) Installation of rock wall beam concrete non-hole formwork support system After the rock wall beam concrete non-hole formwork and support system components are processed in the processing plant, the processed devices are transported to the site by vehicle. During installation, a construction scaffolding is first set up as an operating platform, and then anchor rods are constructed according to the dimensions of the design drawings, steel tripods and formwork support frames are installed, and finally purlins, formwork and tie bars are installed. The formwork and purlins are assembled on site and fixed with hook bolts, and then lifted as a whole to the formwork support frame by a truck crane and fixed with upper horizontal tie bars, lower horizontal tie bars and inclined tie bars.

[0019] (III) Position adjustment of the rock wall beam concrete non-hole formwork support system After the rock wall beam concrete non-hole formwork and support system are installed, the adjustable support 11 can adjust the elevation of the inclined formwork. After the elevation and horizontal position of the formwork are adjusted to the designed position, concrete can be poured.

[0020] (IV) Removal of the rock wall beam concrete non-hole formwork support system. The rock wall beam concrete non-hole formwork and support system can only be removed after the concrete pouring is completed and the strength reaches the design or specification requirements. When removing, first loosen the upper horizontal tie bar, the lower horizontal tie bar, and the adjustable support to separate the formwork from the concrete surface, and then remove the formwork. After the formwork is removed, the formwork support frame and the steel tripod are removed. Manual removal is used during removal, and a truck crane is used to remove the materials. The removed materials must be properly stored and not damaged, and must be transferred to the next warehouse for use or for later use.

Claims

1. Rock wall beam concrete non-hole formwork support system, characterized by: A vertical formwork (1) and an inclined formwork (2) for forming rock wall beam concrete respectively form a rock wall beam concrete casting trough with the vertical rock wall and the inclined rock wall, and a plurality of groups of purlins, tie bars, anchor rods, support frames, and tripods together form a formwork support system. The vertical purlins (3) and the inclined purlins (4) located outside the vertical formwork and the inclined formwork are connected to the formwork by first hook bolts (3-1) and second hook bolts (4-1). A first horizontal tie bar (5) is provided outside the upper part of the concrete casting trough, and a second horizontal tie bar (6) is provided outside the lower part. Both ends of the first tie bar group are connected to the first hook bolt (3-1) and the second hook bolt (4-1). The two ends of the second brace group are respectively fixed to the anchor rods (7) at the corresponding positions of the vertical purlin and the vertical rock wall. The two ends of the second brace group are respectively fixed to the anchor rods at the corresponding positions of the vertical purlin and the vertical rock wall. The formwork support frame (8) for supporting the inclined formwork located directly below the rock wall beam concrete casting groove is located on the steel tripod (9). The horizontal steel and the inclined steel of the steel tripod are respectively fixed to the anchor rods at the corresponding positions of the vertical rock wall. The construction scaffolding (10) of the working platform during the rock wall beam concrete construction period is located outside the rock wall beam concrete casting groove, the formwork support frame (8), and the steel tripod (9).

2. The rock wall beam concrete non-hole formwork support system according to claim 1 is characterized in that: The lateral spacing between adjacent first horizontal braces and second horizontal braces is 50 cm or 75 cm.

3. The rock wall beam concrete non-hole formwork support system according to claim 1 is characterized in that: The formwork support frame comprises a steel vertical pole (8-1), a steel horizontal pole (8-2), and a steel diagonal pole (8-3). The steel vertical pole is placed on a lower steel tripod (9). The spacing between the steel vertical poles is the same as that of the steel tripod, which is 50 cm or 75 cm.

4. The rock wall beam concrete non-hole formwork support system according to claim 1, characterized in that: A plurality of groups of steel tripods (9) are arranged transversely, wherein a single group of steel tripods is composed of cantilever steel (9-1), steel diagonal braces (9-2), and vertical support steel (9-3). The steel tripods are welded and fixed to anchor rods at corresponding positions on the rock wall. Each member of the steel tripod is welded and fixed to each other. The spacing between adjacent steel tripods is 50 cm or 75 cm.

5. The rock wall beam concrete non-hole formwork support system according to claim 1, characterized in that: The construction scaffold (10) is composed of vertical poles (10-1), longitudinal horizontal poles (10-2), transverse horizontal poles (10-3), scissor braces (10-4), and channel steel pads (10-5), and serves as a working platform during the construction period and is completely separated from the rock wall beam concrete formwork and support system.

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