CN204850426U - Building templates is stupefied with back of body - Google Patents

Abstract

The utility model provides a building templates is stupefied with back of body, includes two back -to -back parallel arrangement's channel -section steel and connects the connecting piece of two channel -section steels, and the channel -section steel is foraminiferous C type channel -section steel, and it has one to be listed as the slotted hole to open along C type channel -section steel extending direction on its flange plate, the connecting piece includes the U type card of a plurality of seam cards between the web of two channel -section steels, the both sides board of U type card respectively with the web welding or the bolted connection of both sides. The utility model discloses simple structure, light in weight, preparation high efficiency, the distance of two channel -section steels can conveniently be controlled in the use of U type card, the stupefied whole width of the control back of the body, convenient for material collection, the turnover that can circulate is used, reduces construction cost, improves the efficiency of construction, can regard as concrete form's the back of the body stupefied, effectively reduces the atress span of template, retrains the deformation of template.

Description

Back flute for building formwork

technical field

The utility model relates to the technical field of formwork construction, in particular to a back corrugated for building formwork.

Background technique

In order to reduce the consumption of energy and resources and slow down the damage to the environment, the Chinese government followed the world trend and promulgated the "Green Building Evaluation Standard" in early 2006, followed by the "Green Construction Guidelines" to actively promote green building construction. Building construction takes a very short time in the entire building life, but its impact on the environment is great, and the consumption of resources and energy is also very concentrated. Therefore, to create a green building, green construction must be implemented. Green construction refers to construction activities that save resources and reduce negative impacts on the environment to the greatest extent through scientific management and technological progress under the premise of ensuring basic requirements such as quality and safety, so as to achieve energy saving, land saving, and water saving. , the four sections of material saving and environmental protection. In building construction, formwork and scaffolding have been widely used as a recyclable turnover material and machine tools. Therefore, the basic requirements that the building formwork system must meet under the requirements of green construction are: ① consume as little energy as possible; ② cause no or minimal harm to the environment; ④ When it is expected to be discarded, it should be reasonably harmless treated and recycled as resources; ⑤ At the current stage, the manufacturer must have a reliable recycling system that can ensure the realization of the above requirements, or guarantee that the product Complete harmless degradation can be achieved in nature.

In the "Green Construction Guidelines", templates and scaffolding are used as turnover materials and tools, emphatically emphasizing: ① should choose durable, easy maintenance and disassembly turnover materials and tools; Carry out formwork engineering construction; ③ formwork should be based on the principle of saving natural resources, and promote the use of shaped steel molds, steel frame bamboo molds, and bamboo plywood; ④ the formwork project plan should be optimized before construction. Multi-storey and high-rise buildings use reusable formwork systems, and formwork supports should be supported by tools; ⑤ optimize the external scaffolding scheme of high-rise buildings, and adopt schemes such as overall lifting and segmental overhang; 6. Promote the use of external wall insulation boards instead of concrete Construction formwork technology; ⑦ Take effective technical and management material-saving measures to increase the turnover times of formwork and scaffolding; 8. Vigorously develop the research and application of fair-faced concrete construction technology and new formwork and scaffolding technology.

In the process of building concrete construction, the general formwork cannot fully bear the lateral pressure generated when pouring concrete, so it is often necessary to set the back flute to strengthen the rigidity of the formwork. Most of the existing back flute cannot be used in combination, and the back flute is usually a pair of formwork. One of the processing, every time new concrete is poured, it is necessary to prepare a new corresponding back flute. The materials used cannot be reused, which is a waste of materials and generates more construction waste.

Utility model content

The purpose of this utility model is to provide a back corrugated for building formwork which is material-saving, lightweight, durable, easy to maintain and disassemble, and reduces emissions. One process, every time a new concrete is poured, a new corresponding back flute needs to be prepared again, the materials used cannot be reused, it is a waste of materials, and there are technical problems in the waste of back flute materials that generate more construction waste.

In order to achieve the above object, the utility model adopts the following technical solutions:

A back flute for building formwork, including two channel steels arranged in parallel back to back and a connector connecting the two channel steels, characterized in that: the channel steel is a C-shaped channel steel with holes, and the upper edge of the flange plate There is a row of oblong holes in the extending direction of the C-shaped channel steel for the connection between the back flute and the formwork; the connecting piece includes several U-shaped clips stuck between the webs of the two channel steels, and the two sides of the U-shaped clips The plate surface is parallel to the web surface of the channel steel on both sides and is respectively connected and fixed with the web.

Preferably, the two side plates of the U-shaped card are welded to the web.

Preferably, the U-shaped card is formed by cold bending of a rectangular steel plate with a thickness of 10 mm, including rectangular side plates on both sides and a circular arc part in the middle, and the size of the rectangular side plate is 100*30*10; the circular arc part It is a semi-circular ring, the inner diameter of the semi-circular ring is 24mm, and the outer diameter is 3mm.

Preferably, there are at least two U-shaped clips, which are respectively arranged at two ends of the channel steel.

Preferably, the width of the oblong holes is 18 mm, the length is 54 mm, and the distance between adjacent oblong holes is 325 mm.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

1. The utility model has the advantages of simple structure, light weight, fast and efficient installation and disassembly;

2. It is convenient to obtain materials and can be recycled and used to reduce construction costs and improve construction efficiency. It can be used as the back of the concrete formwork, effectively reducing the force span of the formwork and restraining the deformation of the formwork;

3. The use of U-shaped card can conveniently control the distance between two channel steels, control the overall width of the back flute, and make the production simple and improve the efficiency.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail;

Fig. 1 is the structure schematic diagram of back corrugated with building formwork of the utility model embodiment 1;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is a side view of channel steel 1 in Fig. 1;

Fig. 5 is the front view of Fig. 4;

Figure 6 is a top view of Figure 5;

Fig. 7 is the right view of Fig. 5;

Fig. 8 is the structural representation of the U-shaped card 2 of welding connection of embodiment 1;

Fig. 9 is a diagram of the use state of the back corrugated for building formwork in Embodiment 1 of the present utility model.

Reference signs: 1-channel steel, 11-web plate, 12-flange plate, 13-long round hole, 2-U-shaped card, 3-formwork.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 to 9, a back flute for a building formwork includes two channel steels 1 arranged in parallel back to back and a connector connecting the two channel steels. The channel steel 1 is a C-shaped channel steel with holes, and its flange plate There is a row of oblong holes 13 for connecting with the template 3 along the extension direction of the C-shaped channel steel on the 12; The two side plates are respectively welded or bolted to the two webs 11. In this embodiment, it is welded. When the bolts are connected, a row of circular holes is opened on the web 11 of the channel steel along the extending direction of the C-shaped channel steel. The corresponding The two side plates of the U-shaped card 2 also have corresponding reserved holes, and the bolts connect and fix the U-shaped card 2 with the webs of the channel steel on both sides through the reserved holes and round holes. FIG. 1 is a schematic structural diagram of a U-shaped card 2 fixed by welding. As shown in Figure 8, the U-shaped card 2 is formed by cold bending of a rectangular steel plate with a thickness of 10 mm, including rectangular side plates on both sides and a circular arc part in the middle. The size of the rectangular side plate is 100*30*10; the circular arc part is a semi-circular ring , the inner diameter of the semi-circular ring is 24mm, and the outer diameter is 3mm. The number of U-shaped clips 2 is at least two, which are respectively arranged at the two ends of the channel steel 1 . Channel steel 1 chooses No. 8 channel steel. The width of the oblong holes 13 is 18 mm, the length is 54 mm, and the distance between adjacent oblong holes 13 is 325 mm. The diameter of the round hole 12 is 18 mm, and the distance between adjacent oblong holes 13 is 125 mm.

As shown in Figure 9, when in use, the pull bolt 4 passes between the two channel steels 1 of the back flute, and the back flute is fixedly connected with the template 3, and at the same time, the template and the back flute are further fixed with bolts through the oblong hole 13 connect.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (5)

1. a construction formwork back cord, comprise two back-to-back channel-section steels (1) be arranged in parallel and the connector connecting two channel-section steels, it is characterized in that: described channel-section steel (1) is C type channel-section steel with holes, its frange plate (12) has along C type channel-section steel bearing of trend the slotted hole (13) that row are connected with template (3) for back cord; Described connector comprises the U-shaped card (2) between several webs being stuck in two channel-section steels (11), and the biside plate plate face of described U-shaped card (2) is parallel with web (11) the plate face of both sides channel-section steel and be connected and fixed with web (11) respectively.

2. a kind of construction formwork back cord according to claim 1, is characterized in that: biside plate and the web (11) of described U-shaped card (2) are welded to connect.

3. a kind of construction formwork back cord according to claim 1, it is characterized in that: described U-shaped card (2) is by the thick rectangle steel plate cold roll forming of 10mm, comprise the rectangle side plate on both sides and middle circular arc portion, described rectangle side plate is of a size of 100*30*10; Described circular arc portion is semicircular ring, and the internal diameter of semicircular ring is 24mm, and external diameter is 3mm.

4. a kind of construction formwork back cord according to claim 1, is characterized in that: the number of described U-shaped card (2) is at least two, is located at the two ends of channel-section steel (1) respectively.

5. a kind of construction formwork back cord according to Claims 1 to 4 any one, is characterized in that: the width of described slotted hole (13) is 18mm, and length is 54mm, and the spacing of adjacent slotted hole (12) is 325mm.