Device for pouring strip-shaped foundation

Abstract

The utility model relates to the technical field of pouring in the building industry, in particular to a device for pouring a strip-shaped foundation. The strip-shaped foundation pouring device is composed of a rectangular foundation trench, a concrete cushion layer at the bottom of the foundation trench, a template for pouring the strip-shaped foundation, spacing supporting rods, stress ribs and rectangular stirrups forming the strip-shaped foundation, and corrugated wood and a supporting device which are arranged between the stress ribs and the rectangular stirrups. The supporting device comprises a steel pipe support, arc groove steel channels and horizontal threaded steel tightening latches. The steel pipe support is vertically fixed in the arc groove steel channel, and the horizontal deformed steel bar tightening latch horizontally penetrates through the formwork and the arc groove steel channel arranged on the two outer sides of the corrugated wood in a spaced mode. According to the device, the steel pipe supports, the arc groove steel channels and the horizontal threaded steel bolt rods are matched, stable supporting in the front-back direction, the left-right direction, the up-down direction and the six directions is provided for the formwork, in addition, the horizontal threaded steel bolts are arranged on the stress ribs on the lowermost layer, the stability of the formwork and the stress ribs in the up-down direction is guaranteed, and the construction efficiency is improved. Therefore, the device is convenient, fast, safe, stable and reusable during pouring construction operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pouring technology in the construction industry, and particularly relates to a device for strip foundation pouring. BACKGROUND

[0002] The frame and brick-concrete structure in industrial and civil buildings generally adopt strip foundation, and the common length formwork used for strip foundation concrete pouring is generally provided with several steel pipe inclined braces between the outer walls of the formwork on both sides and the bottom of the foundation groove to support the formwork, but this way is not stable and easy to slip, which causes the formwork to collapse, and the formwork needs to be re-erected for multiple times, thereby affecting the smooth implementation of construction progress, quality and safety.

[0003] Therefore, the prior art provides a support device for the formwork to stabilize the formwork and prevent slipping, for example, a cast-in-place box girder side form back rib and inclined brace sleeve support system disclosed in Chinese patent CN113832828A includes double limb channel steel and telescopic sleeve, the double limb channel steel is arranged as a support point through horizontal bridge arrangement, the inclined brace sleeve support system is symmetrically arranged on both sides of the cast-in-place box girder, the support stiffness of the web side form is improved, and the risk of side form slipping is reduced. However, the design only provides support for the horizontal slipping of the formwork, and in the pouring process, the formwork may slip in multiple directions, such as horizontal front and back, left and right, and vertical up and down, as the pouring material is injected. Therefore, it is necessary to design a pouring device that can provide stable support to the formwork in multiple directions. SUMMARY

[0004] In order to solve the problem of easy sliding of the inclined brace in the prior art, a pouring device that can provide stable support to the formwork in multiple directions is provided, and the utility model provides a device for strip foundation pouring, and the specific scheme is as follows:

[0005] The utility model discloses a device for strip foundation pouring, which comprises a rectangular base groove, a concrete cushion, a stress bar, a rectangular stirrup, a formwork, a spacer, a spacing support and a supporting device, wherein the supporting device comprises a steel pipe support, an arc groove channel steel and a horizontal threaded steel bolt rod, the concrete cushion is located at the bottom of the rectangular base groove, a plurality of parallel stress bars and the rectangular stirrup are bundled to form a full-length rectangular frame, the rectangular frame is arranged on the concrete cushion in the longitudinal direction, two formworks are symmetrically arranged on the two sides of the rectangular stirrup, the spacing support is arranged above the intermediate layer stress bar and is horizontally arranged at the inner side of the two formworks, a gap is formed between the formwork and the rectangular stirrup, a plurality of protrusions are arranged on the outer side of the formwork in the longitudinal direction, a plurality of spacers are arranged on the protrusions, the spacers are parallel to the ground and do not exceed the height of the formwork, a plurality of horizontal threaded steel bolt rods are arranged between the upper surface of the lowermost stress bar, pass through the formwork and pass through or exceed the lowermost spacer, and a plurality of horizontal threaded steel bolt rods are arranged above the formwork, the two ends of each horizontal threaded steel bolt rod pass through the arc groove channel steel and are fixed through a fastening nut, the arc groove channel steel is provided with two rows of arc grooves arranged side by side, each row of arc grooves is composed of two arc-shaped grooves symmetrically arranged on the upper and lower flanges of the arc groove channel steel, and a vertical steel pipe support is fixed in each row of arc grooves.

[0006] Further, the gap between the formwork and the rectangular stirrup is 10-20 mm.

[0007] Further, a plurality of horizontal threaded steel bolt rods with the same spacing are arranged symmetrically and in parallel in the longitudinal direction of the rectangular base groove.

[0008] Further, the spacing between two adjacent horizontal threaded steel bolt rods in the longitudinal direction of the rectangular base groove is 0.8-1.2 m.

[0009] Further, the depth of the arc groove is greater than the radius of the steel pipe support.

[0010] The utility model discloses a device for strip foundation pouring, which comprises a rectangular base groove, a concrete cushion, a stress bar, a rectangular stirrup, a formwork, a spacer, a spacing support and a supporting device, wherein the supporting device comprises a steel pipe support, an arc groove channel steel and a horizontal threaded steel bolt rod, the concrete cushion is located at the bottom of the rectangular base groove, a plurality of parallel stress bars and the rectangular stirrup are bundled to form a full-length rectangular frame, the rectangular frame is arranged on the concrete cushion in the longitudinal direction, two formworks are symmetrically arranged on the two sides of the rectangular stirrup, the spacing support is arranged above the intermediate layer stress bar and is horizontally arranged at the inner side of the two formworks, a gap is formed between the formwork and the rectangular stirrup, a plurality of protrusions are arranged on the outer side of the formwork in the longitudinal direction, a plurality of spacers are arranged on the protrusions, the spacers are parallel to the ground and do not exceed the height of the formwork, a plurality of horizontal threaded steel bolt rods are arranged between the upper surface of the lowermost stress bar, pass through the formwork and pass through or exceed the lowermost spacer, and a plurality of horizontal threaded steel bolt rods are arranged above the formwork, the two ends of each horizontal threaded steel bolt rod pass through the arc groove channel steel and are fixed through a fastening nut, the arc groove channel steel is provided with two rows of arc grooves arranged side by side, each row of arc grooves is composed of two arc-shaped grooves symmetrically arranged on the upper and lower flanges of the arc groove channel steel, and a vertical steel pipe support is fixed in each row of arc grooves, and the steel pipe support is closely attached to the outer side of the spacer. BRIEF DESCRIPTION OF DRAWINGS

[0011] The embodiments of the present application are further described below with reference to the drawings, in which:

[0012] Figure 1 A cross-sectional structure schematic view of the present application is shown;

[0013] Figure 2 A cross-sectional structure schematic view of the present application is shown; Figure 1 A schematic view of the support device in A-A direction is shown;

[0014] Figure 3 A three-dimensional structure schematic view of the support device is shown.

[0015] Wherein, 1, original soil; 2, rectangular base groove; 3, concrete cushion layer; 4, stress reinforcement; 5, rectangular stirrup; 6, formwork; 7, interval setting wood; 7a, protrusion; 8, steel pipe support; 9, arc groove channel steel; 9a, arc-shaped recess; 10, horizontal threaded steel bolt rod; 11, fastening nut; 12, interval support rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0017] In one embodiment, a device for strip foundation pouring includes: a longitudinal lengthwise rectangular base groove 2, a concrete cushion layer 3, a longitudinal lengthwise stress reinforcement 4, a rectangular stirrup 5, a longitudinal whole-laid vertical formwork 6, a longitudinal interval spacer 7, an interval support rod 12, and a support device, the support device including a vertical steel pipe support 8, a short-limbed arc groove channel steel 9, and a horizontal threaded steel bolt rod 10. The concrete cushion layer 3 is located at the bottom of the rectangular base groove 2, a plurality of parallel stress reinforcements 4 and rectangular stirrups 5 are bundled to form a lengthwise rectangular frame, the illustrated rectangular frame has three layers of stress reinforcements 4, the rectangular frame is arranged on the concrete cushion layer 3 in the longitudinal direction, two sets of whole-laid formworks 6 are symmetrically located on both sides of the rectangular stirrup 5, the interval support rod 12 is placed above the middle layer of stress reinforcements 4 and the two ends are flat inside the two sets of whole-laid formworks 6, the formwork 6 and the rectangular stirrup 5 have a gap of 15 mm, the inside of the formwork 6 and the space surrounded by the longitudinal ends of the rectangular base groove 2 are the strip foundation pouring concrete area, the outside of the formwork 6 is provided with a plurality of protrusions 7a in the longitudinal direction, a plurality of interval spacers 7 are placed on the protrusions 7a, the interval spacers 7 are parallel to the ground and do not exceed the height of the formwork 6. A plurality of horizontal threaded steel bolt rods 10 are arranged in parallel in the longitudinal direction of the rectangular base groove 2, are arranged at the same interval above the upper surface of the lowermost layer of stress reinforcements 4, pass through the formwork 6, and pass over the lowermost layer of interval spacers 7. The interval between two adjacent horizontal threaded steel bolt rods 10 in the longitudinal direction of the rectangular base groove 2 is 0.8-1.2 m. In addition, a plurality of horizontal threaded steel bolt rods 10 are located above the formwork 6 and are symmetrically parallel to the plurality of horizontal threaded steel bolt rods 10 below. The outer diameter of the horizontal threaded steel bolt rod 10 is greater than 12 mm, has great rigidity, and its length is greater than the width of the strip foundation and slightly less than the width of the rectangular base groove 2. The two ends of each horizontal threaded steel bolt rod 10 pass through the middle of the web of the arc groove channel steel 9 and are fixed by a fastening nut 11. The inner diameter of the hole through which the horizontal threaded steel bolt rod 10 passes is slightly larger than the outer diameter of the horizontal threaded steel bolt rod 10, so that the horizontal threaded steel bolt rod 10 can pass through. The upper and lower flanges of the arc groove channel steel 9 are symmetrically cut with vertically symmetrical arc grooves 9a, i.e., two rows of arc grooves are provided. Each row of arc grooves is composed of two arc grooves 9a symmetrically cut on the upper and lower flanges of the arc groove channel steel 9. The depth of the arc groove 9a is greater than the radius of the steel pipe support 8, so that the steel pipe support 8 can be tightly clamped and placed vertically. One steel pipe support 8 is fixed in each row of arc grooves. The steel pipe support 8 is tightly attached to the outside of the interval spacer 7. The height of the steel pipe support 8 is higher than the height of the strip foundation and is equivalent to or slightly higher than the depth of the rectangular base groove 2. The same steel pipe support 8 is fixed by the upper and lower arc groove channel steels 9.

[0018] The use method of the device is:

[0019] 1. First, excavate a longitudinal lengthwise rectangular base groove 2 on the original soil 1 of the project site, and then lay a base concrete cushion layer 3 at the bottom of the longitudinal lengthwise rectangular base groove 2.

[0020] 2. After the final setting of the concrete cushion layer 3 of the longitudinal and lengthwise rectangular base trench 2 base, the positioning and placement of the longitudinal and lengthwise stress reinforcement 4 and the rectangular stirrup 5 are carried out;

[0021] 3. Each long-limb horizontal threaded steel bolt rod 10 is horizontally placed on the upper surface of the bottom layer longitudinal and lengthwise stress reinforcement 4 at an interval of 0.8-1.2 meters as a positioning screw;

[0022] 4. The vertical formwork 6 is symmetrically and longitudinally laid on both sides of the rectangular stirrup 5. The ends of the long-limb horizontal threaded steel bolt rod 10 need to pass through the adaptive holes in the formwork 6. The interval support rod 12 is placed above the stress reinforcement 4 in the middle layer, and the two ends are flat inside the two formworks 6. The protrusion 7a and the longitudinal interval sleeper 7 are added;

[0023] 5. Four vertical steel pipe braces 8 are symmetrically inserted and installed on the outside of the interval sleeper 7 and the two ends of the horizontal threaded steel bolt rod 10 (positioning screw) on the front and back sides of the two sides, respectively, forming two pairs of symmetry. The arc groove channel steel 9 is sleeved on the outside of the lower part of the four vertical steel pipe braces 8, and the four vertical steel pipe braces 8 on both sides are respectively clamped and placed outside the upper and lower symmetrically arranged arc-shaped grooves 9a;

[0024] 6. The fastening nuts 11 are respectively threaded through the two ends of the lower horizontal threaded steel bolt rod 10, and the arc groove channel steel 9 is clamped and fixed to the vertical steel pipe brace 8, which is fixed to the outer wall of the bottom longitudinal interval sleeper 7;

[0025] 7. After the fastening of the arc groove channel steel 9 at the lower part of the completed vertical steel pipe brace 8, another long-limb horizontal threaded steel bolt rod 10 is inserted and placed at the upper position (top longitudinal interval sleeper 7 upper end) of the two pairs of symmetric vertical steel pipe braces 8, and the fastening of the arc groove channel steel 9 at the upper part of the vertical steel pipe brace 8 is completed through steps 5 and 6;

[0026] 8. In this way, the vertical steel pipe brace 8 and the upper and lower symmetric arc groove channel steel 9 at the two end positions of all the interval long-limb horizontal threaded steel bolt rods 10 in the longitudinal and lengthwise rectangular base trench 2 are fixed, so that the longitudinally laid vertical formwork 6 and the longitudinal interval sleeper 7 are fixed in all directions of space;

[0027] 9. The concrete pouring construction of the strip foundation composed of the longitudinally laid vertical formwork 6 and the longitudinal and lengthwise stress reinforcement 4 and rectangular stirrup 5 is carried out;

[0028] 10. After the final setting of the strip foundation concrete, all the fastening nuts 11 on the two sides of the upper and lower ends are loosened, and the arc groove channel steel 9, the upper horizontal threaded steel bolt rod 10, and all the steel pipe braces 8 are dismantled and recycled;

[0029] 11. Remove the wooden 7, the convex 7a and the template 6, complete the strip foundation concrete pouring construction, and then proceed to the upper part of the strip foundation construction;

[0030] 12. Perform the strip foundation concrete pouring construction of the next project according to the steps 1-11.

[0031] Some example embodiments of the present application are described above, it can be understood that the above-mentioned embodiments are only used to explain the present application, and do not constitute a limitation on the protection scope of the present application. The features in these embodiments can be recombined in a suitable manner, and the schemes obtained thereby are still within the protection scope required by the present application. Based on the above-mentioned embodiments, all other embodiments obtained by those skilled in the art without making creative efforts, i.e. all modifications, equivalent replacements and improvements, etc. made within the spirit and principles of the present application, are also within the protection scope required by the present application.

Claims

1. A device for strip foundation pouring, characterized in that, The utility model relates to a kind of constructional formwork, including: Rectangular base groove (2), concrete cushion (3), stress reinforcement (4), rectangular hoop (5), formwork (6), interval timber (7), interval support rod (12) and supporting device, supporting device includes steel pipe support (8), arc groove channel steel (9) and horizontal screw steel bolt rod (10), the concrete cushion (3) is located the bottom of rectangular base groove (2), multiple parallel stress reinforcement (4) and rectangular hoop (5) are tied to form through-length rectangular frame, the rectangular frame is arranged on concrete cushion (3) along longitudinal direction, two formwork (6) are symmetrically located at the two sides of rectangular hoop (5), interval support rod (12) is placed above intermediate layer stress reinforcement (4) and both ends are flat in the inner side of two formwork (6), formwork (6) and the gap between rectangular hoop (5) is left, the outer side of formwork (6) is provided with multiple protrusions (7a) along longitudinal direction, multiple interval timbers (7) are placed on the protrusions (7a), the interval timbers (7) are all parallel to ground and do not exceed the height of formwork (6), multiple horizontal screw steel bolt rods (10) are arranged in the upper surface of the lowermost stress reinforcement (4), pass through formwork (6) and pass through or cross the lowermost interval timber (7);In addition, multiple horizontal screw steel bolt rods (10) are arranged above formwork (6), both ends of each horizontal screw steel bolt rod (10) pass through arc groove channel steel (9) and are fixed by fastening nut (11), arc groove channel steel (9) is provided with two rows of parallel arc grooves, each row of arc grooves is formed by two arc-shaped grooves (9a) on the upper and lower flanges of arc groove channel steel (9) symmetry, a vertical steel pipe support (8) is fixed in each row of arc grooves of upper and lower position symmetry, steel pipe support (8) is closely attached to the outer side of interval timber (7).

2. A device for strip foundation pouring according to claim 1, characterized in that, The gap between formwork (6) and rectangular hoop (5) is 10-20mm.

3. A device for strip foundation pouring according to claim 1, characterized in that, Multiple horizontal screw steel bolt rods (10) with same interval are arranged symmetrically along longitudinal direction of rectangular base groove (2) up and down.

4. A device for strip foundation pouring according to claim 3, characterized in that, The interval of two adjacent horizontal screw steel bolt rods (10) along longitudinal direction of rectangular base groove (2) is 0.8-1.2m.

5. A device for strip foundation pouring according to claim 1, characterized in that, The depth of arc groove is greater than the radius of steel pipe support (8).

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