CN219327098U - Flexible template and construction device for pouring concrete strip foundation of building - Google Patents

Abstract

The utility model relates to a flexible template for pouring a building concrete strip foundation and a construction device, wherein the flexible template for pouring the building concrete strip foundation forms a bag-shaped foundation template with a small upper part and a large lower part in section.

Description

Flexible template and construction device for pouring concrete strip foundation of building

Technical Field

The utility model relates to the technical field of constructional engineering, in particular to a flexible template for pouring a concrete strip foundation of a building and a building device.

Background

The flexible template refers to various template materials which provide structural support for concrete pouring by using a deformable film, and comprises various fabric templates, non-woven film material templates and the like.

In the 50 s of the 20 th century, synthetic fibers entered the market, providing a material basis for the industrial application of flexible templates. In the 60-70 s, the development of the technology (namely the flexible template technology) starts to pay attention to the modeling of the texture of concrete by a fabric template, and is applied to the civil building field, and a series of organic morphological composition building decoration facades constructed by migel Fei Sake (Miguel fischer) are represented. In the 80-00 s, mark West and Isodon (Kenzo Unno) fabric templates were used in the construction of structural load bearing walls, but mainly in the laboratory research phase. In 2008, the establishment of the international fabric template society (ISOFF, international Society of Fabric Forming) marks that the technology is effectively developed in international collaboration, and changes the working modes of engineers for each administration. In 2012, the mechanical performance of the flexible template building component is basically researched by John Qiao Sefu (John Joseph Orr) of the university of Edinburgh through full-scale model experiments, so that conditions are created for the application of the technology in the engineering field, and important reference data are provided for designers and engineers.

The application of the flexible template is mainly focused in the following fields, and the most important fields are geotechnical engineering and mining industry, for example, in goaf roadway support devices, concrete is poured into the flexible template by bags to form an integral support body; and then, if the cuboid fiber flexible template is manufactured by adopting high-strength fiber cloth, pumping and pouring concrete. The technology also has application in the fields of hydraulic engineering and ocean engineering, such as concrete walls for offshore structures and underwater installation templates. The technology is relatively less applied in the field of construction, and is more mature and mainly used for reinforcing concrete structural columns, for example, flexible template concrete and the structural columns are integrally protected and reinforced; there are also applications directed to round or profiled structural columns, but their effects and roles are mainly focused on morphological aspects.

The concrete strip foundation is a common foundation form of a building and is arranged below a structural column or a continuous wall body, so that the effect of transmitting building load and acting force to external natural soil is achieved. The conventional wooden form or steel form that adopts of foundation construction, the raw and other materials of consumptive material are more, and need more manual formwork to fix, and measure cost is higher, and the solid waste that produces is also more. In areas with large relief or complex topography such as mountains and hills, the rigid templates have weak adaptability, and a large amount of site leveling and earthwork carrying work are needed to achieve foundation construction conditions. For a curved building wall foundation, the rigid template is realized by adopting a mode of splicing short wood forms, and the cost of consumed materials and manpower is higher.

Disclosure of Invention

In view of the above analysis, the present utility model aims to provide a flexible formwork and a building device for casting a concrete strip foundation of a building, which solve the above problems.

The aim of the utility model is mainly realized by the following technical scheme:

the utility model provides a flexible template for pouring a concrete strip foundation of a building, which forms a bag-shaped foundation template with a small upper part and a large lower part in section.

Further, the flexible template forms a pouring space matched with the strip foundation;

and two sides of the flexible template are at least partially laid in an overlapping manner.

Further, the flexible template is made of polypropylene fiber fabric or polyethylene fiber fabric geotextile;

the tensile strength of the flexible template is not less than 50kN/m.

The utility model also provides a construction device of the flexible template, which can be at least used for supporting the flexible template; the construction device comprises:

the support frame comprises at least one group of support cross rod groups with equal horizontal heights, so that a pouring space matched with the strip foundation can be formed by supporting the flexible template;

the fixing frame is fixedly connected with the supporting frame so as to fix the supporting frame on a substrate to be formed into a strip-shaped foundation.

Further, when the base needs to be provided with strip-shaped foundations with different heights, the supporting frame comprises a plurality of groups of supporting cross rod groups, and the horizontal heights among the different supporting cross rod groups are different.

Further, the support rail set includes at least one pair of support rails disposed in parallel;

and two sides of the flexible template are fixed on the support cross bars which are arranged in parallel so as to form the pouring space.

Further, the cross section of the flexible template after being fixed on the support frame is in a pocket shape;

the two sides of the flexible template are at least partially overlapped;

the bottom center of the flexible template is fixed on the substrate;

the flexible template is made of polypropylene fiber fabric or polyethylene fiber fabric.

Further, the fixing frame comprises a plurality of fixing vertical rods, and the bottom ends of the fixing vertical rods are detachably fixed on the substrate;

the supporting cross rod is detachably fixed on the fixed vertical rod;

the fixed vertical rods are arranged in a pairwise mode.

Further, the building device further comprises a reinforcing rod and a hoisting part, wherein two ends of the reinforcing rod are detachably arranged on the fixed vertical rods which are opposite to each other in pairs and are perpendicular to the supporting cross rod; the hoisting part is arranged on the reinforcing rod so as to hoist the reinforcing rib in the pouring space.

Further, the hoisting part is a hoisting wire, one end of the hoisting wire is fastened on the reinforcing rod, and the other end of the hoisting wire is fastened on the reinforcing rib;

the connection point of the reinforcing rod and the fixed vertical rod is higher than the connection point of the supporting cross rod and the fixed vertical rod, so that the reinforcing rod is erected above the pouring space.

In the utility model, the technical schemes can be mutually combined to realize more preferable combination schemes. Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the utility model, like reference numerals being used to refer to like parts throughout the several views.

Figure 1 is a schematic diagram of the construction of the building device according to the embodiment;

figure 2 is a schematic cross-section of the building device in a specific embodiment.

Reference numerals:

1-a flexible template; 11-pouring space; 12-pouring marked lines; 2-supporting frames; 21-support crossbars; 3-fixing frame; 31-fixing a vertical rod; 4-a substrate; 5-fixing pieces; 6-reinforcing rods; 7-a hoisting part; 8-reinforcing ribs; 81-transverse ribs; 82-longitudinal ribs; 9-edge sealing plate.

Detailed Description

The following detailed description of preferred embodiments of the utility model is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the utility model, are used to explain the principles of the utility model and are not intended to limit the scope of the utility model.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "coupled" should be interpreted broadly, for example, as being fixedly coupled, as being detachably coupled, as being integrally coupled, as being mechanically coupled, as being electrically coupled, as being directly coupled, as being indirectly coupled via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The terms "top," "bottom," "above … …," "below," and "on … …" are used throughout the description to refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are versatile, irrespective of their orientation in space.

The working surface of the utility model can be a plane or a curved surface, and can be inclined or horizontal. For convenience of explanation, the embodiments of the present utility model are placed on a horizontal plane and used on the horizontal plane, and thus "up and down" and "up and down" are defined.

Example 1

The embodiment discloses a flexible template for pouring a concrete strip foundation of a building, as shown in fig. 1-2, the flexible template forms a bag-shaped foundation template with a small section and a large section, and the width and the height of the flexible template are set according to the design requirement of the strip foundation.

The flexible template for pouring the building concrete strip foundation realizes the light weight of raw materials in the construction of the building strip foundation and the reduction effect of construction measures, and establishes a green low-carbon construction technical system for the strip foundation. In addition, the flexible template foundation construction system has strong flexibility and adaptability, can be applied to mountain lands or complex terrains with larger fluctuation, is also suitable for foundation construction with irregular curve forms, saves a large amount of field leveling and earthwork workload required by a conventional rigid template system in the foundation construction with complex terrains, and also avoids a large amount of labor required by rigid template cutting and splicing in the foundation construction with irregular curve forms, so that the flexible template foundation construction system has stronger flexibility and more applicable scenes compared with the conventional rigid templates.

The flexible formwork 1 forms a pouring space 11 which is matched with the strip foundation.

When the flexible template is built, two sides of the flexible template are at least partially overlapped and paved. Preferably, the overlapping widths are greater than 150mm and the row of nails is driven in the overlapping position using a hand-held hammer row of nail guns. The simple connection mode can ensure that slurry leakage is avoided in concrete pouring, and the overlapping part of the flexible template can be compacted by the weight of concrete, so that a sealing effect is realized in practice.

Preferably, the flexible template is made of polypropylene fiber fabric (PP) or polyethylene fiber fabric (PE) geotextile, and a waterproof layer is coated on the surface of the flexible template. The flexible template is a coiled material product, the width specification is 600-1200 mm, the specification of the flexible template coiled material is selected according to the strip-shaped basic specification, the length is not limited, and the flexible template coiled material is cut according to the requirement. The strength of the flexible form is such that it meets the load-generating requirements of the lateral pressure of the concrete, and the tensile strength of the flexible form is, for example, not less than 50kN/m. The flexible waterproof membrane material has a protective effect on the foundation and prevents water in the environment and harmful ions dissolved in the water from polluting the poured concrete mixture when the concrete is applied to a wet area of soil or an area with higher groundwater level.

Example two

The embodiment discloses a device for setting up a flexible template, which can be used for supporting the flexible template according to the first embodiment, as shown in fig. 1-2, and comprises:

the support frame 2 comprises at least one group of support cross rod groups with equal horizontal heights so as to be used for supporting the flexible template 1 to form a pouring space 11 matched with the strip foundation;

the fixing frame 3 is detachably and fixedly connected with the supporting frame 2 so as to fix the supporting frame 2 on a substrate 4 to be formed into a strip-shaped foundation.

Namely, the supporting frame 2 and the fixing frame 3 form a supporting frame together so as to limit the assembly space of the flexible template 1. The support frame 2 is fixed to a base 4 to be formed into a strip-shaped foundation by means of the fixing frame 3, and the support frame 2 is assembled so as to be capable of supporting at least the flexible formwork 1.

The substrate 4 may be any surface of soil, foundation, mountain foundation, etc. where a strip foundation is required.

According to one embodiment of the present utility model, the support frame 2 includes at least one group of support cross bar groups with equal horizontal heights, and when the substrates 4 are not on the same plane and bar-shaped foundations with different heights need to be provided, the support frame 2 includes multiple groups of support cross bar groups, and the horizontal heights of the different support cross bar groups are different.

The support cross bar group comprises at least one pair of support cross bars which are arranged in parallel, namely the same group of support cross bars comprises at least two support cross bars 21 which are arranged oppositely, when the support cross bar group comprises a plurality of pairs of support cross bars which are arranged in parallel, one ends of the support cross bars between different pairs are connected to form a strip shape matched with a strip foundation to be formed, as shown in figure 1.

It should be noted that, when a different support rail group is not specified in the present application, the support rail group is the same support rail group by default, and the horizontal heights of the support rails 21 in the support rail group are equal (equal herein includes approximately equal). The support rail group comprises an even number of support rails 21, the support rails 21 being connected to form two parallel lines (straight lines or broken lines), i.e. the support rails 21 form a bar shape of one straight line or broken line shape, as shown in fig. 1.

The flexible templates 1 are fixed on the support cross bar groups, specifically, two sides of the flexible templates 1 are fixed on the support cross bars 21 which are arranged in parallel, so as to form strip-shaped pouring spaces 11, and the pouring spaces 11 are matched with strip-shaped foundations to be formed. It should be noted that, the flexible templates 1 fixed on the same supporting beam group are regarded as the same flexible template 1, and the number of the flexible templates 1 is equal to the number of the supporting beam groups.

In order to improve stability of pouring space formed by the flexible template 1, at least part of two sides of the flexible template 1 are laminated, namely, at least two partial layers of two sides of the flexible template 1 are overlapped together, and the arrangement can ensure that slurry leakage is avoided in concrete pouring, and the overlapped parts of two sides of the flexible template can be compacted due to the weight of concrete, so that a sealing effect is achieved. Preferably, overlapping parts at two sides of the flexible template 1 are fixed by fixing pieces such as chain nails, drawing pins and the like so as to improve the pressure measuring tolerance of the flexible template 1. Preferably, the overlapping portion of the flexible template 1 extends upwardly from the base 4 to the support rail 21. In this embodiment, the width of the overlapping portion of the flexible template 1 is greater than 150mm.

According to one embodiment of the present utility model, the cross section of the shape formed after the flexible form 1 is fixed on the support frame 2 is pocket-shaped, that is, the cross section of the shape formed by the flexible form 1 is similar to the shape of omega inverted upside down, as shown in fig. 2, that is, the cross section of the pouring space formed by the flexible form 1 is an open space with wide bottom and narrow mouth. The cross section refers to a section perpendicular to the base 4 and perpendicular to the direction of extension of the length of the strip-shaped foundation.

In this embodiment, the flexible form 1 is fixed to the support rail 21 by means of fasteners 5 such as nails, screws, etc. The support cross bar 21 is a transverse wood slat or a transverse steel pipe, and the dimension of the transverse wood slat is 30mm×120mm (thickness×width) by way of example, the diameter of the transverse steel pipe is 50mm, the lengths of the transverse steel pipe and the transverse steel pipe are not limited, and the transverse steel pipe is cut according to the requirement. The dimension specification of the flexible template 1 is set according to the requirement of the strip-shaped foundation design, after the flexible template 1 forms a pouring space 11, a row of fixing pieces 5 (such as nails) are fixed at the center of the bottom of the flexible template 1, namely, the center of the bottom of the flexible template 1 is fixed on the substrate 4 through the fixing pieces, so that foundation form deflection caused by uneven lateral pressure during concrete pouring is prevented.

Preferably, the flexible template material adopts polypropylene fiber fabric (PP) or polyethylene fiber fabric (PE) geotextile, and a waterproof layer is coated on the surface of the flexible template. The flexible template is a coiled material product, the width specification is 600-1200 mm, the specification of the flexible template coiled material is selected according to the strip-shaped basic specification, the length is not limited, and the flexible template coiled material is cut according to the requirement. The strength of the flexible form is such that it meets the load-generating requirements of the lateral pressure of the concrete, and the tensile strength of the flexible form is, for example, not less than 50kN/m.

The supporting frame 2 is erected on the substrate 4 through the fixing frame 3, specifically, the fixing frame 3 comprises a plurality of fixing vertical rods 31, and the bottom ends of the fixing vertical rods 31 are detachably fixed on the substrate 4. The support cross bar 21 is detachably fixed on the fixed vertical bar 31. One support cross bar 21 is fixed by at least two fixing vertical bars 31, and the two connected support cross bars 21 can share the same fixing vertical bar 31 for fixing at the connecting position.

Preferably, the fixing posts 31 are disposed in two pairs, the number of the fixing posts 31 is not necessarily even, and the same fixing post 31 may be disposed opposite to two or more fixing posts 31 at the same time, as shown in fig. 1, and the fixing posts 31 at the turning point are disposed opposite to the other three fixing posts 31 at the same time.

If reinforcing ribs such as steel bars are required to be arranged in the strip-shaped foundation to improve the strength of the strip-shaped foundation, the building device further comprises reinforcing rods 6 and lifting parts 7, wherein two ends of the reinforcing rods 6 are arranged on fixed vertical rods 31 which are opposite to each other in pairs and are perpendicular to the supporting cross rods 21. The lifting part 7 is arranged on the reinforcing rod 6, so that the reinforcing rib 8 is lifted and arranged in a pouring space formed by the flexible template 1, namely, the reinforcing rib 8 is lifted to a position designed in the strip foundation through the lifting part 7, and a protective layer of concrete forming a manuscript can be formed at the bottom of the reinforcing rib during pouring. In this embodiment, the hanging part 7 is a hanging wire, one end of the hanging wire is tied on the reinforcing rod 6, and the other end of the hanging wire is tied on the reinforcing rib 8.

Preferably, the reinforcing ribs 8 include transverse ribs 81 and longitudinal ribs 82, and the transverse ribs 81 and the longitudinal ribs 82 are staggered to form a mesh-shaped reinforcing rib net to further improve the strength of the strip-shaped foundation. The hoisting part 7 is connected with the staggered points of the transverse ribs 81 and the longitudinal ribs 82.

In order to ensure the stability of the reinforcing ribs 8 in the pouring space 11, the construction device is provided with a plurality of reinforcing rods 6, and at least two hanging wires are arranged on the reinforcing rods 6 to hoist the reinforcing ribs.

Preferably, the reinforcing rod 6 is detachably disposed on the fixed vertical rod 31. In this embodiment, the reinforcing rod 6 is fixed to the fixing post 31 by a fixing member 5 such as a nail or a screw.

In this embodiment, the fixed vertical rod 31 is a vertical square timber or a vertical steel pipe, and the size of the vertical square timber is 60mm×60mm (length×width), the diameter of the horizontal steel pipe is 50mm, the height of the vertical square timber and the vertical steel pipe is not limited, and the vertical square timber is cut out according to the requirement. The reinforcing rods 6 are reinforced square timber or reinforced steel pipes, and the specification and the size of the reinforcing rods are selected according to the specification of the reinforcing ribs so as to better bear the reinforcing ribs.

It should be noted that, the reinforcing rod 6 is erected above the pouring space 11 through the fixing vertical rod 31, and then the reinforcing rod 6 is located above the supporting cross rod 21, that is, the connection point between the reinforcing rod 6 and the fixing vertical rod 31 is higher than the connection point between the supporting cross rod 21 and the fixing vertical rod 31, and the height of the fixing vertical rod 31 is at least greater than the height of the pouring space 11.

For better control of the casting process, casting marks 12 are marked on the inner side of the flexible formwork 1, and the casting is stopped until the casting marks 12 when casting concrete into the casting space 11.

If the strip-shaped foundations to be formed on the base 4 are not on the same plane, the supporting frame 2 at least comprises two groups of supporting cross bars positioned at different levels. The two ends of the flexible template 1 arranged on the same horizontal height supporting cross bar group are sealed through the edge sealing plate 9 or/and the table top of the substrate 4, according to practical situations, the two ends of the flexible template 1 may be sealed through the edge sealing plate 9, may be sealed through the table top of the substrate 4, may be sealed through the edge sealing plate 9 at one end, and may be sealed through the table top of the substrate 4 at one end, and the sealing mode of the flexible template 1 is determined by the topography of the strip foundation.

The process for preparing the strip foundation by adopting the flexible template building device comprises the following steps:

step one: a supporting frame 2 and a fixing frame are built on a substrate 4;

step two: the flexible template 1 is laid on the support frame 2 to form a pouring space 11 matched with the strip foundation;

step three: a reinforcing rod 6 is arranged on the fixing frame 3, and reinforcing ribs 8 are hung in the pouring space 11 through a hanging part 7;

step four: pouring concrete into the pouring space 11, and curing;

step five: and removing the reinforcing rods 6, the supporting frames 2 and the fixing frames 3, and forming a strip-shaped foundation wrapped with the flexible template 1 on the substrate 4.

In the first step, the position, the set width and the height of the reserved plane of the supporting frame are determined according to the concrete strip foundation layout plane and the design specification, the fixing frame 3 is inserted into the tamped substrate 4 by using a hammer, the firmness of the fixing frame is ensured, and a level gauge is adopted for positioning in the construction process. The distance between the arrangement of the fixing posts 31 is determined by the lateral pressure at the time of pouring the bar-shaped foundation, and a distance of 600-800 mm can meet the safety requirements, for example, and the distance between the fixing posts 31 is appropriately reduced at higher bar-shaped foundations. The support rail 21 is then fixed to the fixed vertical bars 31 according to the bar-shaped foundation height, forming the support frame. In the position of the relief, the change of the strip foundation on different levels can be realized by adopting a step-shaped form and simply adjusting the height of the fixed vertical rod 31 and the edge sealing plate 9.

In the second step, the flexible templates are laid on the supporting frame, specifically, the flexible template materials are fixed on the supporting cross bars 21 at the two sides by using fixing pieces 5 such as nails or screws, so as to form a bag-shaped basic template with a narrow cross section and a wide bottom, and the flexible templates are fixed by fixing pieces 5 such as chain nails. Preferably, the two sides of the flexible template are at least partially overlapped, that is, the two sides of the flexible template 1 are at least partially overlapped, that is, at least two partial layers of the two sides of the flexible template 1 are overlapped together, so that the arrangement can ensure that slurry leakage is avoided in concrete pouring, and the weight of the concrete can compact the overlapped parts of the two sides of the flexible template to play a role of sealing. Preferably, the overlapped parts at two sides of the flexible template 1 are fixed by fixing pieces such as chain riveting and drawing pins, so as to improve the pressure measuring tolerance of the flexible template 1, and specifically, a hand-held hammer chain riveting gun is used for nailing chain riveting at the overlapped parts. Preferably, the overlapping portion of the flexible template 1 extends upwardly from the base 4 to the support rail 21. In this embodiment, the width of the overlapping portion of the flexible template 1 is greater than 150mm. Preferably, a row of fixing members 5 (e.g., nails) are fixed to the bottom center of the flexible form 1 to prevent the deflection of the foundation form due to uneven lateral pressure during the concrete pouring.

Cutting the flexible template material at the corner or the orthogonal position of the strip foundation by using scissors to form a proper shape, partially overlapping the templates at two sides with each other, and driving chain nails at the overlapped position by using a hand-held hammer chain nail gun. The deformability of the flexible material in the relief position makes it possible to achieve very easily a conversion of the formwork system in vertical height.

In the third step, for the strip-shaped foundation with reinforcing ribs such as reinforcing steel bars, reinforcing rods 6 are arranged on the fixed vertical rods 31 which are opposite to each other, and then the reinforcing ribs 8 are hung at the designed positions in the strip-shaped foundation by adopting hanging parts 7 such as hanging wires, so that the bottom of the reinforcing ribs form a sufficiently thick concrete protection layer during pouring.

In the fourth step, after the previous three steps are completed, concrete pouring is started, a pumping mode is generally adopted for construction, pumping is stopped after the pouring surface reaches the pouring marking 12, and then the poured concrete is maintained according to the measure requirement.

In the fifth step, after the strength of the concrete meets the requirement of form removal, the reinforcing rods and the supporting frames can be removed for the next use, and the flexible templates and the inner concrete are reserved to form a building or construction foundation.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

(1) The light weight of raw materials in construction of the strip foundation of the building and the reduction effect of construction measures are realized through a simple supporting frame structure, and a green low-carbon construction technical system for the strip foundation is established.

(2) The flexible template takes a flexible material as a core, necessary rigid support is used as an auxiliary, the total weight of raw materials is light, the supporting frame can be made of waste wood boards, scaffold steel pipes and the like in a construction site, and the supporting frame can be reused for a plurality of times, so that the utility model belongs to a low-carbon environment-friendly green construction device. The strip-shaped foundation flexible template system is simple in structure and construction process, common materials and tools are adopted, adaptability to complex terrain sites is high, the support system can be recycled, the strip-shaped foundation flexible template system is a green low-carbon construction technology, reduction of construction measures and light weight of raw materials are achieved, influence of building foundation construction on surrounding environment is reduced, and environmental protection sustainability of the construction sites is improved.

(3) The method for manufacturing the strip foundation by the device is simple and easy to implement, the flexible material is simple and convenient to mount, the manual workload in construction can be reduced, the solid waste materials generated in the construction process are less than those of the conventional process, the purpose of reducing the construction measures is achieved, and the device meets the green sustainable principle. In addition, the overall price of the building device is cheaper than that of a conventional system, and the building device has economic advantages.

(4) The building device has strong flexibility and adaptability, can be applied to mountain lands or complex terrains with larger fluctuation, is also suitable for foundation construction with irregular curve forms, saves a large amount of field leveling and earthwork workload required by a conventional rigid template system in the foundation construction with the complex terrains, and also avoids a large amount of labor required by cutting and splicing the rigid templates in the foundation construction with the irregular curve forms, so that the building device has stronger flexibility and more applicable scenes compared with the conventional rigid templates.

(5) The utility model can also be applied to areas with moist soil or areas with higher groundwater level, the flexible waterproof membrane material plays a role in protecting the foundation, and can prevent water in the environment and harmful ions dissolved in the water from polluting the built concrete mixture. Further, after the construction of the foundation and the upper side wall body is completed, the flexible membrane reserved on the outer side of the concrete foundation is watertight, so that water vapor can be prevented from entering the room through capillary action of the concrete outer wall, the indoor microenvironment is improved, and the position of the indoor wall foundation is prevented from being moist, bulging and moldy. The effect is better if the flexible membrane is combined with a moisture regain layer laid under the floor of the room. The flexible film also plays a role in protecting the foundation, reduces the carbonization depth of the foundation and the long-term erosion of chloride ions in the environmental soil, and prolongs the service life of the foundation.

(6) The utility model can prevent the pollution of sewage in the environment to concrete during construction, and the flexible waterproof film also plays a role in retaining water in summer, prevents the strength from being influenced by excessive water loss in the hardening process of the concrete, and improves the construction quality of the concrete foundation.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. The flexible template for pouring the concrete strip foundation of the building is characterized in that the flexible template forms a bag-shaped foundation template with a small upper part and a large lower part in section through a construction device;

and two sides of the flexible template are at least partially laid in an overlapping manner.

2. The flexible template of claim 1, wherein the flexible template forms a casting space that mates with a strip foundation.

3. The flexible template according to claim 2, wherein the flexible template is made of polypropylene fiber fabric or polyethylene fiber fabric geotextile;

the tensile strength of the flexible template is not less than 50kN/m.

4. A flexible formwork building apparatus, at least for supporting a flexible formwork as claimed in any one of claims 1 to 3; the construction device comprises:

the support frame comprises at least one group of support cross rod groups with equal horizontal heights, so that a pouring space matched with the strip foundation can be formed by supporting the flexible template;

the fixing frame is fixedly connected with the supporting frame so as to fix the supporting frame on a substrate to be formed into a strip-shaped foundation.

5. A building device according to claim 4, wherein when the foundation is to be provided with a strip-shaped foundation of different height, the support frame comprises a plurality of groups of support cross bars, and the horizontal heights of the groups of support cross bars are different.

6. A building arrangement according to claim 4, wherein the set of support bars comprises at least one pair of support bars arranged in parallel;

and two sides of the flexible template are fixed on the support cross bars which are arranged in parallel so as to form the pouring space.

7. A building device according to claim 6, wherein the cross section of the flexible formwork after being fixed to the support frame is pocket-shaped;

the two sides of the flexible template are at least partially overlapped;

the bottom center of the flexible template is fixed on the substrate;

the flexible template is made of polypropylene fiber fabric or polyethylene fiber fabric.

8. A building device according to claim 6, wherein the fixing frame comprises a plurality of fixing vertical rods, the bottom ends of which are detachably fixed on the base;

the supporting cross rod is detachably fixed on the fixed vertical rod;

the fixed vertical rods are arranged in a pairwise mode.

9. The construction device according to claim 8, further comprising a reinforcing rod and a hoisting part, wherein two ends of the reinforcing rod are detachably arranged on two opposite fixed vertical rods and are perpendicular to the supporting cross rod; the hoisting part is arranged on the reinforcing rod so as to hoist the reinforcing rib in the pouring space.

10. A building device according to claim 9, wherein the lifting part is a lifting wire, one end of which is fastened to the reinforcing bar, and the other end of which is fastened to the reinforcing bar;

the connection point of the reinforcing rod and the fixed vertical rod is higher than the connection point of the supporting cross rod and the fixed vertical rod, so that the reinforcing rod is erected above the pouring space.

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