CN212271604U - Hanging mould for increasing cross section of concrete beam - Google Patents
Hanging mould for increasing cross section of concrete beam Download PDFInfo
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- CN212271604U CN212271604U CN202020669081.5U CN202020669081U CN212271604U CN 212271604 U CN212271604 U CN 212271604U CN 202020669081 U CN202020669081 U CN 202020669081U CN 212271604 U CN212271604 U CN 212271604U
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Abstract
The utility model discloses a hang mould for increasing concrete beam cross-section. The hanging mould comprises a U-shaped template and a plurality of fixing units; the fixing unit comprises a first channel steel arranged at the bottom of the U-shaped template and a pair of second channel steels arranged at two sides of the U-shaped template; the first channel steel is provided with a rectangular hole for the second channel steel to pass through; two second channel steels penetrate through the rectangular holes and are arranged vertically to the first channel steels; the second channel steel is fixedly arranged on the side wall of the original member beam through a hexagon head bolt; an eyelet bolt is vertically arranged on the outer side wall of the second channel steel; a square nut matched with the eyelet bolt is arranged on the second channel steel, and the eyelet bolt is arranged on the second channel steel through the square nut; and the tail end of the swing bolt passes through the square nut and then is contacted with the first channel steel.
Description
Technical Field
The utility model relates to a hang mould for increasing concrete beam cross-section belongs to the technical field who consolidates the construction equipment.
Background
The building reinforcement is to reinforce and reinforce the building by utilizing carbon fiber, bonded steel and high-pressure grouting. The technology is widely applied to building design engineering for reinforcing beams, columns, cantilever beams, plates and the like. The method for reinforcing the enlarged cross section is a reinforcing method which is used for increasing the cross section area of a concrete structure or a structure so as to improve the bearing capacity and meet the normal use requirement; the engineering of the section-enlarging reinforcing method is widely applied to reinforcing of members such as beams, plates, columns, walls and the like and general structures, and has the advantages of simple construction process, strong adaptability and long-term use experience.
In the prior art, a method for increasing the cross section of a concrete beam is to hoist a mould on the original amount of concrete, then press a steel plate on the building beam by virtue of an ejector rod, and finally inject concrete into the hoist mould. Because the reinforced positions are different in height, ejector rods with shorter lengths need to be selected, and the vacant heights are spliced by means of the overlapping modes of plate bricks, wood plates and the like, so that the positions of the ejector rods and the applied pressure are roughly adjusted. The construction process is complicated and rough, and flexible and accurate construction cannot be realized; and the plate brick, the wood plate and other structures also reduce the stability of the whole ejector rod, and bring great construction danger to constructors.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a hang mould for increasing concrete beam cross-section.
The technical scheme of the utility model is that:
a suspension mould for increasing the section of a concrete beam comprises a U-shaped template and a plurality of fixing units; the fixing unit comprises a first channel steel arranged at the bottom of the U-shaped template and a pair of second channel steels arranged at two sides of the U-shaped template;
the first channel steel is provided with a rectangular hole for the second channel steel to pass through; two second channel steels penetrate through the rectangular holes and are arranged vertically to the first channel steels;
the second channel steel is fixedly arranged on the side wall of the original member beam through a hexagon head bolt;
an eyelet bolt is vertically arranged on the outer side wall of the second channel steel; a square nut matched with the eyelet bolt is arranged on the second channel steel, and the eyelet bolt is arranged on the second channel steel through the square nut; and the tail end of the swing bolt passes through the square nut and then is contacted with the first channel steel. The rectangular hole realizes the limiting effect of the first channel steel on the second channel steel. Through the cooperation of the swing bolt and the square nut, the pressure of the first channel steel is adjusted by the second channel steel, and the pressure balance is realized while the fixing requirements of different construction processes are met.
Preferably, the tail end of the hexagon bolt sequentially penetrates through the butterfly nut and the second channel steel and then is matched with an internal tension expansion bolt in the original member beam, and the second channel steel is fixed on the beam wall of the original member beam; the hexagon head bolt is provided with an external thread matched with the butterfly nut.
Preferably, the end of the swing bolt is rotatably provided with an adjusting support. The adjusting support reduces the pressure between the end of the swing bolt and the first channel steel.
Preferably, a wood cushion block is arranged between the first channel steel, the second channel steel and the U-shaped template. The friction force between the wood cushion block and the hexagon head bolt is enhanced, and the fixing force of the second channel steel on the original member beam is further improved; in addition, the wood blocks are favorable for uniform pressure distribution of pressure on the surface of the U-shaped template.
Preferably, the plurality of fixing units are arranged in parallel along the length direction of the original member beam.
Preferably, the pair of second channel steels is symmetrically arranged on two sides of the original component beam.
Preferably, the length of the swing bolt is 500mm, the length of the hexagon head bolt is 300mm, the lengths of the first channel steel and the second channel steel are both 1000mm, the width of the first channel steel is 160mm, and the width of the second channel steel is 100 mm; the size of rectangular hole is 112X 600mm, the distance of rectangular hole apart from the long limit of first channel-section steel is 24mm, and the distance apart from two minor faces of first channel-section steel is 100mm and 300mm respectively.
The utility model discloses following beneficial effect has:
1. the lifting die for increasing the cross section of the concrete beam has the advantages of simple structure, convenient use, flexible and repeated use, high universality and high working efficiency, and realizes accurate adjustment of the fixed position and the pressurization size of the lifting die; in addition, the whole mould hanging device is high in stability, and the construction risk of constructors is reduced;
2. a hang mould for increasing concrete beam cross-section, through the nimble cooperation of a plurality of fixed units that set up, realize the nimble control to U type template fixed position and compressive strength.
Drawings
FIG. 1 is a diagram showing a state of use of a form for enlarging a cross section of a concrete beam according to the present invention;
FIG. 2 is a schematic view of the construction of the drop bolt;
FIG. 3 is a schematic structural view of a hexagon head bolt;
FIG. 4 is a schematic view of the construction of the pull-in expansion bolt;
FIG. 5 is a schematic structural view of a first channel;
the novel structural beam comprises 1. an internal tension expansion bolt, 2. an original structural beam, 3. a beam enlarged part, 4. an adjusting bearing, 5. a square nut, 6. an eyelet bolt, 7. a hexagon head bolt, 8. a butterfly nut, 9. a wood cushion block, 10. a U-shaped template, 11. a first channel steel and 12. a second channel steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1
Referring to the schematic illustrations of figures 1-5,
a suspended formwork for enlarging the section of a concrete beam comprises a U-shaped formwork 10 and five fixing units; the fixing unit comprises a first channel steel 11 arranged at the bottom of the U-shaped template 10 and a pair of second channel steels 12 arranged at two sides of the U-shaped template 10;
a rectangular hole for the second channel steel 12 to pass through is formed in the first channel steel 11; the two second channel steels 12 penetrate through the rectangular holes and are perpendicular to the first channel steel 11;
the second channel steel 12 is fixedly arranged on the side wall of the original component beam 2 through a hexagon head bolt 7;
the outer side wall of the second channel steel 12 is vertically provided with an eyelet bolt 6; a square nut 5 matched with the swing bolt 6 is arranged on the second channel steel 12, and the swing bolt 6 is arranged on the second channel steel 12 through the square nut 5; the tail end of the swing bolt 6 passes through the square nut 5 and then contacts with the first channel steel 11. The rectangular hole realizes the limiting effect of the first channel steel 11 on the second channel steel 12. Through the cooperation of swing bolt 6 and square nut 5, realize that second channel-section steel 12 is to the regulation of first channel-section steel 11 pressure size, realize that pressure balance satisfies the fixed requirement of different work progress simultaneously.
The tail end of the hexagonal head bolt 7 sequentially penetrates through the butterfly nut 8 and the second channel steel 12 and then is matched with the inner-pulling expansion bolt 1 in the original component beam 2, and the second channel steel 12 is fixed on the beam wall of the original component beam 2; the hexagon head bolt 7 is provided with an external thread matched with the butterfly nut 8.
The five fixing units are arranged in parallel along the length direction of the original component beam 2. The pair of second channel steels 12 are symmetrically arranged on two sides of the original component beam 2.
The length of the swing bolt 6 is 500mm, the length of the hexagon head bolt 7 is 300mm, the lengths of the first channel steel 11 and the second channel steel 12 are both 1000mm, the width of the first channel steel 11 is 160mm, and the width of the second channel steel 12 is 100 mm; the size of rectangular hole is 112X 600mm, the distance of rectangular hole apart from 11 long limits of first channel-section steel is 24mm, and the distance apart from 11 two minor faces of first channel-section steel is 100mm and 300mm respectively.
The construction method of the suspended formwork for enlarging the section of the concrete beam, which is shown in the embodiment, comprises the following steps:
1) drilling holes (5 on two sides of the beam) on the beam wall of the original component beam 2, and installing internal tension expansion bolts 1 in the drilled holes;
2) synchronously and reversely rotating the two swing bolts 6 to enable the first channel steel 11 to move to a position close to the bottom of the second channel steel 12;
3) the tail end of a hexagon head bolt 7 sequentially penetrates through a butterfly nut 8 and a second channel steel 12 and then is matched with an internal tension expansion bolt 1 in an original component beam 2, and one end of the second channel steel 12 is fixed on the beam wall of the original component beam 2;
4) repeating the step 3) for ten times, and installing the five fixing units on the original component beam 2;
5) placing the U-shaped template 10 with an upward opening on the upper side of the first channel steel 11, and circularly and sequentially carrying out forward rotation on the 5 pairs of swing bolts 6 to realize the lifting of the U-shaped template 10; until the U-shaped template 10 is buckled at the bottom of the original component beam 2;
6) and (3) pouring concrete into the U-shaped formwork 10, adjusting the movable joint bolt 6 in real time to ensure that the U-shaped formwork 10 is only buckled at the bottom of the original component beam 2 until the concrete is solidified, and removing the hanging formwork.
Example 2
The hoisting mould for enlarging the section of a concrete beam as in embodiment 1 is further provided with an adjusting support 4 at the end of the swing bolt 6. The adjusting support 4 reduces the pressure between the end of the swing bolt 6 and the first channel 11.
Example 3
According to the hanging mould for increasing the section of the concrete beam in embodiment 1, further, the wood spacers 9 are arranged between the first channel steel 11 and the U-shaped template 10 and the second channel steel 12. The friction force between the wood cushion block 9 and the hexagonal head bolt 7 is enhanced, and the fixing force of the second channel steel 12 on the original component beam 2 is further improved; in addition, the wood blocks are arranged to facilitate the uniform pressure distribution of the pressure on the surface of the U-shaped template 10.
Claims (7)
1. A hanging mould for increasing the section of a concrete beam is characterized by comprising a U-shaped template and a plurality of fixing units; the fixing unit comprises a first channel steel arranged at the bottom of the U-shaped template and a pair of second channel steels arranged at two sides of the U-shaped template; the first channel steel is provided with a rectangular hole for the second channel steel to pass through; two second channel steels penetrate through the rectangular holes and are arranged vertically to the first channel steels; the second channel steel is fixedly arranged on the side wall of the original member beam through a hexagon head bolt; an eyelet bolt is vertically arranged on the outer side wall of the second channel steel; a square nut matched with the eyelet bolt is arranged on the second channel steel, and the eyelet bolt is arranged on the second channel steel through the square nut; and the tail end of the swing bolt passes through the square nut and then is contacted with the first channel steel.
2. The hanging die for enlarging the section of a concrete beam as recited in claim 1, wherein the tail end of the hexagon head bolt sequentially passes through the butterfly nut and the second channel steel and then is matched with an internal tension expansion bolt in the original member beam, so that the second channel steel is fixed on the beam wall of the original member beam; the hexagon head bolt is provided with an external thread matched with the butterfly nut.
3. A formwork system for enlarging the cross-section of a concrete beam as defined in claim 1, wherein said swing bolt is pivotally supported at its distal end with an adjustment brace.
4. A lifting die for increasing the section of a concrete beam according to claim 1, wherein a wooden spacer is provided between the first and second channel steels and the U-shaped formwork.
5. A hoist form for enlarging the section of a concrete beam as recited in claim 1, wherein said plurality of fixing units are provided in parallel along the length direction of the existing structural beam.
6. A hoist form for enlarging the cross-section of a concrete beam as claimed in claim 1, wherein a pair of second channel steels are symmetrically provided at both sides of the existing structural beam.
7. A hoist die for enlarging the section of a concrete beam according to claim 1, wherein the length of the swing bolt is 500mm, the length of the hexagon head bolt is 300mm, the length of each of the first channel steel and the second channel steel is 1000mm, the width of the first channel steel is 160mm, and the width of the second channel steel is 100 mm; the size of rectangular hole is 112X 600mm, the distance of rectangular hole apart from the long limit of first channel-section steel is 24mm, and the distance apart from two minor faces of first channel-section steel is 100mm and 300mm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669081.5U CN212271604U (en) | 2020-04-27 | 2020-04-27 | Hanging mould for increasing cross section of concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669081.5U CN212271604U (en) | 2020-04-27 | 2020-04-27 | Hanging mould for increasing cross section of concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212271604U true CN212271604U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020669081.5U Active CN212271604U (en) | 2020-04-27 | 2020-04-27 | Hanging mould for increasing cross section of concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212271604U (en) |
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2020
- 2020-04-27 CN CN202020669081.5U patent/CN212271604U/en active Active
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