CN212021104U - Mould roof beam for building - Google Patents
Mould roof beam for building Download PDFInfo
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- CN212021104U CN212021104U CN201921733458.2U CN201921733458U CN212021104U CN 212021104 U CN212021104 U CN 212021104U CN 201921733458 U CN201921733458 U CN 201921733458U CN 212021104 U CN212021104 U CN 212021104U
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Abstract
The application provides a mould roof beam for building, including the roof beam body, setting mould and strengthening rib, the setting mould encloses synthetic confined cavity roof beam shape by combined material, the both ends of setting mould are equipped with into thick liquid mouth and play thick liquid mouth respectively, the roof beam body forms in the setting mould through the grout, just the outer wall of roof beam body with the inner wall bonding of setting mould, the strengthening rib inlays to be established in the roof beam body, follow the length direction of setting mould extends, just the strengthening rib have with the shape that the length direction of roof beam body suited. Through the technical scheme, compared with the concrete reinforced building beam with the same cross section area, the strength of the die beam, such as compression strength, bending strength, shearing strength and the like, is greatly improved, the maximum strength can reach 60%, and the die beam still has higher support strength when the space is smaller.
Description
Technical Field
The application relates to the field of buildings, in particular to a mold beam for buildings.
Background
The bearing beams, i.e. the beams and columns used for bearing in various buildings, are the pillars of the whole building, generally, the large support strength needs the bearing beams with large cross section area for supporting, or the number of the bearing beams is increased, but in the construction or repair process of many buildings, especially special buildings, because of the limitation of building space and site, the building beams with larger cross section area cannot be manufactured and installed in the construction process, and the number of the bearing beams cannot be increased, and if the smaller building beams are adopted to bear larger support strength, various scenes can be met in the use process of the building, such as bearing by large load, long-term vibration fatigue and the like, the structure of the building is easy to be reduced, deformation is caused, the service life of the building is shortened, and the building can be collapsed in serious cases. Secondly, the existing building beam adopts a normal pressure pouring mode to pour concrete or mortar slurry, when the building is in a use environment of humidity, water seepage, acid, alkali or salt, the corrosive substances can easily corrode the building beam and enter the building beam to cause the corrosion of steel bars inside the building beam, the expansion of the inside of the concrete can further cause the reduction of bearing capacity, and the service life and safety of the building can also be seriously influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned not enough that spandrel girder exists in the present building, this application provides a mould roof beam for building, for the same concrete reinforcement building beam of cross sectional shape and area, its compressive strength, bending resistance and resistance to shear etc. all improve greatly, can promote 60% at most, and then make when the space is less, the mould roof beam still has great support strength.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
a mold beam for construction, comprising:
a beam body;
the beam body is formed in the shaping mold through grouting, and the outer wall of the beam body is bonded with the inner wall of the shaping mold;
the reinforcing rib is embedded in the beam body and extends along the length direction of the shaping mold, and the reinforcing rib has a shape matched with the length direction of the beam body;
the beam body is made of concrete or mortar;
the composite material is formed by compounding at least two materials and has the excellent performances of high strength, high modulus, high temperature resistance, acid and alkali resistance, ageing resistance and the like. Such as aramid fibers, basalt fibers, carbon fibers or metal matrix composites. The forming die is made of the composite material, the reinforcing and restraining effects are achieved in the forming process of the beam body, the forming die is not detached after the beam body is formed, and the forming die is bonded with the beam body under the effect of concrete slurry to form an integral structure, on one hand, due to the fact that the strength of the composite material is high, high pressure can be adopted for grouting in the forming process of the beam body, the density of the beam body is improved, the strength of the die beam is increased, and compared with a concrete reinforced building beam with the same section shape and section area, the strength of the beam, such as compression resistance, bending resistance and bearing capacity, is greatly improved, and can be improved by 60% at most; on the other hand, as the composite material is an inert material, the composite material can resist acid, alkali and aging, and a protective layer is formed on the outer side of the beam body, so that the die beam can be used in severe environments such as long-term humidity, water seepage, acid, alkali, salt and the like without being corroded, the change of the internal structure of the die beam caused by corrosion is avoided, and the safety performance and the service life of a building are further prolonged. Furthermore, during the preparation of the beam body.
Preferably, the shaping mold is in a hollow linear column shape or arc column shape along the length direction. The shape of the shaping mold can be designed and selected according to the use environment, and can be determined according to the factors such as the use space, the bearing capacity and the like. The shaping mold may have a constant diameter or a different diameter in the longitudinal direction.
Preferably, the cross-sectional shape of the shaping mold is circular, oval, T-shaped, i-shaped, groove-shaped, box-shaped or polygonal. The cross-sectional shape of the shaping mold can be designed and selected according to the use environment, and can be determined according to the factors such as the use space, the bearing capacity and the like.
Preferably, the composite material is aramid fiber, basalt fiber or metal matrix composite material. The type of composite material may be selected based on cost control, strength, and the like. The aramid fiber is a novel high-tech synthetic fiber and has the excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, ageing resistance, long life cycle and the like. The basalt fiber is a continuous fiber drawn from natural basalt. The basalt stone material is melted at 1450-1500 ℃, and then is drawn at high speed by a platinum rhodium alloy wire drawing bushing to form continuous fiber. The basalt continuous fiber has high strength, and also has various excellent performances of electrical insulation, corrosion resistance, high temperature resistance and the like. In addition, the production process of the basalt fiber determines that the produced waste is less, the environmental pollution is less, and the product can be directly degraded in the environment after being discarded without any harm, so the basalt fiber is a real green and environment-friendly material. The metal-based composite material is a composite material which is artificially combined by taking metal and alloy thereof as a matrix and one or more metal or nonmetal reinforcing phases. The metal-based composite materials are classified according to the category of the reinforcement, such as fiber reinforcement (including continuous and chopped), whisker reinforcement, particle reinforcement and the like, and according to the difference of metal or alloy matrixes, the metal-based composite materials can be divided into aluminum-based, magnesium-based, copper-based, titanium-based, high-temperature alloy-based, intermetallic compound-based, refractory metal-based composite materials and the like, and are characterized by higher transverse and shear strength, better comprehensive mechanical properties such as toughness, fatigue and the like in the aspect of mechanics, and simultaneously, the metal-based composite materials also have the advantages of heat conduction, electric conduction and the likeWear resistance, small thermal expansion coefficient, good damping property, no moisture absorption, no aging, no pollution and the like. For example, the specific strength of the carbon fiber reinforced aluminum composite material is 3-4 multiplied by 107mm, specific modulus of 6-8 x 109mm, and as graphite fiber reinforced magnesium, the specific modulus can reach 1.5 multiplied by 1010mm and its coefficient of thermal expansion is nearly zero.
Preferably, the reinforcing rib is a basalt composite rib or a steel bar, and of course, the reinforcing rib can also be made of other high-strength materials. The material of the reinforcing bars may be selected based on cost control, strength, and the like. The basalt composite rib is a composite rib which is corrosion-resistant, has higher strength than a steel rib and light self weight, and the die beam made of the composite rib has light weight and good corrosion resistance, and has higher strength and larger bearing capacity compared with a steel bar building beam with the same sectional area.
Preferably, the shaping mold comprises a first end cover, a second end cover and a reinforcing pressure plate, the first end cover and the second end cover are detachably connected to form a closed hollow beam shape, and the reinforcing pressure plate covers and is fixedly connected to the outer side of the detachable connection position. The beams of the building are often very long, the die beams are arranged into split structures, the die beams can be prefabricated in a factory in advance, and the split structures are more convenient to transport.
Preferably, the shaping mold further comprises a connecting pipe, the connecting pipe is arranged between the first end cover and the second end cover and detachably connected with the first end cover and the second end cover end to form a closed hollow beam shape, and the reinforcing pressing plate is wrapped on and fixedly connected with the outer side of the detachable connection position. In the construction process, the split structure of the connecting pipe and the two end covers is adopted, the length of the die beam can be adjusted, modular production is realized, and the split structure is more convenient to prefabricate and transport.
Wherein the detachable connection is splicing.
Preferably, the end part of the die beam and the edge of the die beam are provided with mounting anchor bolt mounting holes in the length direction, so that the die beam and a building can be conveniently mounted. In a specific installation process, structural adhesive can be arranged on the die beam and the base surface of the building for primary connection, and then anchor bolts and the like are used for reinforcement connection.
Preferably, the beam body is formed in a shaping mold by grouting, specifically: and pouring concrete or mortar slurry into the shaping mold under the pressure of 3-5 MPa by using a high-pressure grouting machine, and curing for a preset time. Because the slurry of concrete or mortar is injected under relatively high pressure by using a high-pressure grouting machine, the density of the formed beam body is high, and the high pressure also enables the setting mould, the slurry of concrete or mortar and the reinforcing ribs to be tightly combined together to form a high-density high-strength integral structure, so that the strength of the mould beam is higher. Wherein, the preset time of maintenance can be adjusted according to the needs, generally at least 28 days.
The mould beam for the building is prepared by adopting the following method:
determining the shape and material of the shaping mold and the number and material of the reinforcing ribs according to the requirements of the installation space and the strength of the mold beam;
pouring concrete or mortar slurry into the mould from the slurry inlet under the pressure of 3-5 MPa to form a mould beam to be cured;
and maintaining the die beam to be cured for a preset time to obtain the die beam.
The manufacturing and shaping mold can be completed by adopting the processes of vacuum hot pressing, glue bonding and the like. The design method has the advantages that the targeted design of different strengths and special section shapes can be carried out according to the requirements of different buildings on bearing capacity, and the application range is wide; reinforcing ribs are arranged in the shaping mould according to the strength requirement, and then the slurry of concrete or mortar is injected and cured to obtain a high-strength mould beam, so that the process is simple; the shaping mold and the reinforcing ribs can be prefabricated in a factory, the concrete or mortar slurry can be poured in the factory or in a construction site, the installation is convenient, the construction process is simplified, and the construction period is effectively shortened.
The concrete or mortar slurry poured into the mold beam from the slurry inlet to form the mold beam to be cured specifically comprises the following steps:
a pulp inlet head and a first stop valve are arranged at the pulp inlet, and a pulp outlet head and a second stop valve are arranged at the pulp outlet;
pouring the slurry of the concrete or the mortar from a slurry inlet head by adopting a high-pressure grouting machine, opening a second stop valve, and discharging air in the shaping mold;
and closing the second stop valve, continuously filling the slurry of the concrete or the mortar into the shaping mold by using a high-pressure grouting machine until the pressure reaches a preset value, and closing the first stop valve to obtain the mold beam to be cured.
Because the slurry of concrete or mortar is injected under relatively high pressure by using a high-pressure grouting machine, the density of the formed beam body is high, and the high pressure also enables the setting mould, the slurry of concrete or mortar and the reinforcing ribs to be tightly combined together to form a high-density high-strength integral structure, so that the strength of the mould beam is higher. The grout head, the grout outlet head, the first stop valve and the second stop valve are removed after the mold beam is cured.
In addition, the determining the shape and material of the shaping mold according to the installation space and strength requirements of the mold beam, and the number and material of the reinforcing bars further comprises: and reserving an installation hole for installing an anchor bolt on the shaping mold. The installation in later stage can be made things convenient for by reserving the mounting hole.
The application has the advantages that: the application provides a mould roof beam for building, mould roof beam for building includes the roof beam body, setting mould and strengthening rib, the setting mould encloses synthetic confined cavity roof beam shape by combined material, the both ends of setting mould are equipped with into thick liquid mouth and play thick liquid mouth respectively, the roof beam body forms in the setting mould through the grout, just the outer wall of roof beam body with the inner wall bonding of setting mould, the strengthening rib inlays to be established in the roof beam body, follow the length direction of setting mould extends, just the strengthening rib have with the shape that the length direction of roof beam body suited. Through the technical scheme, compared with the concrete reinforced building beam with the same cross section area, the strength of the die beam, such as compression strength, bending strength, shearing strength and the like, is greatly improved, the maximum strength can reach 60%, and the die beam still has higher support strength when the space is smaller.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic external view of a mold beam for construction according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a mold beam for construction according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a mold beam for construction according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a mold beam for construction according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a mold beam for construction according to an embodiment of the present application;
fig. 6 is a schematic structural view of a mold beam for construction according to an embodiment of the present application during grouting;
fig. 7 is a schematic structural view of a structural mold beam for construction according to an embodiment of the present application during grouting;
fig. 8 is a schematic structural view of a mold beam for construction according to an embodiment of the present application, which is connected to a base surface of a building.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, a mold beam for construction, comprising:
a beam body 1;
the beam body 1 is formed in the shaping mold 2 through grouting, and the outer wall of the beam body 1 is bonded with the inner wall of the shaping mold 2; wherein, the grout inlet 21 is used for connecting with grouting equipment and injecting concrete or mortar slurry into the shaping mold 2, and the grout outlet 22 is used for exhausting air in the shaping mold 2 during grouting. The thickness of the shaping mold 2 may be selected according to factors such as pressure control during grouting.
The reinforcing rib 3 is embedded in the beam body 1 and extends along the length direction of the shaping mold 2, and the reinforcing rib 3 has a shape matched with the length direction of the beam body 1. In a specific implementation process, the reinforcing ribs 3 may be uniformly distributed, or may be non-uniformly distributed in the beam body 1 according to a requirement of a bearing capacity, for example, concentrated in a central area, and the like.
The beam body 1 is made of concrete or mortar.
In the embodiment of the present application, the shape of the shaping mold 2 may be designed according to the specific situation of a building, and may be a linear column or an arc column. The shaping mold 2 may have a constant diameter or a different diameter in the longitudinal direction.
In the specific embodiment of the present application, the cross-sectional shape of the shaping mold 2 may be circular, oval, T-shaped, i-shaped, trough-shaped, box-shaped, or polygonal, or may be set to other shapes according to the building space of a specific building, and mounting holes are reserved at both ends of the mold beam and along the length direction.
In the implementation process of the present application, the formation of the beam body 1 in the shaping mold 2 through grouting may specifically be as follows: and pouring concrete or mortar slurry into the shaping mold 2 by using a high-pressure grouting machine under the pressure of 3-5 MPa, and curing for a preset time. Because the slurry of concrete or mortar is injected under relatively high pressure by using a high-pressure grouting machine, the formed beam body 1 has high density, and the high pressure also enables the setting mould 2, the slurry of concrete or mortar and the reinforcing ribs 3 to be tightly combined together to form a high-density high-strength integral structure, so that the strength of the mould beam can be higher. Wherein, the preset time of maintenance can be adjusted according to the needs, generally at least 28 days.
In specific embodiments of the present application, the composite material may be aramid fiber, basalt fiber, or a metal matrix composite material.
In the specific embodiment of the present application, the reinforcing rib 3 may be a basalt composite rib or a steel bar, and of course, may also be other composite ribs made of a high-strength material.
In some embodiments of the present application, the shaping mold 2 is a split structure, and specifically includes a first end cap 23, a second end cap 24, and a reinforcing pressure plate 25, the first end cap 23 and the second end cap 24 are detachably connected to form a closed hollow beam shape, and the reinforcing pressure plate 25 covers and is fixedly attached to the outer side of the detachable connection. The consolidation may be by means common in the art, such as welding, bolting, and bonding high strength structural glues to the base of the building.
In some embodiments of the present application, the shaping mold 2 is also a split structure, and includes a connecting pipe, in addition to the first end cap 23, the second end cap 24 and the reinforcing pressing plate 25, the connecting pipe is disposed between the first end cap 23 and the second end cap 24, and detachably connected with the first end cap 23 and the second end cap 24 end to form a closed hollow beam shape, and the reinforcing pressing plate 25 covers and is fixed outside the detachable connection.
In a specific embodiment of the present application, the die beam is provided with mounting holes at both ends thereof.
The preparation method of the mold beam for the building comprises the following steps:
the method comprises the following steps: determining the shape and material of the shaping mold 2 and the number and material of the reinforcing ribs 3 according to the installation space and strength requirements of the mold beam;
step two: pouring concrete or mortar slurry into the mould from the slurry inlet 21 at 3-5 MPa to form a mould beam to be cured;
step three: and maintaining the die beam to be cured for a preset time to obtain the die beam. Generally, the maintenance period is 28 days, and the specific maintenance time can be adjusted according to the requirement of engineering quality.
The concrete or mortar slurry poured into the mold beam to be cured from the slurry inlet 21 is as follows:
a pulp inlet head 4 and a first stop valve 5 are arranged at the pulp inlet 21, and a pulp outlet head 6 and a second stop valve 7 are arranged at the pulp outlet 22; the grout inlet head 4 is a special pipeline-shaped joint connected with the high-pressure grouting machine and arranged between the grout inlet 21 and the high-pressure grouting machine, the grout outlet head 6 is a pipeline-shaped joint connected with the grout outlet 22, the first stop valve 5 is installed on the grout inlet head 4, and the second stop valve 7 is installed on the grout outlet head 6.
Pouring the slurry of the concrete or the mortar from a slurry inlet head 4 by adopting a high-pressure grouting machine, and discharging air in the shaping mold 2;
and closing the second stop valve 7, continuously pouring the slurry of the concrete or the mortar into the shaping mold 2 by using a high-pressure grouting machine until the pressure reaches a preset value of 3-5 MPa, and closing the first stop valve 5 to obtain the mold beam to be cured.
And after the maintenance is finished, the slurry inlet head 4, the first stop valve 5, the slurry outlet head 6 and the second stop valve 7 are dismantled. In the process of mounting the die beam to the building base surface 8, the die beam and the building base surface 8 may be provided with a structural adhesive for preliminary connection, and then, the anchor bolt or the like for reinforcement connection.
In addition, the step of determining the shape and material of the shaping mold 2 according to the installation space and strength requirements of the mold beam, and the number and material of the reinforcing bars 3 further comprises: and reserving an installation hole for installing an anchor bolt on the shaping mold 2. The installation in later stage can be made things convenient for by reserving the mounting hole.
The application has the advantages that: the application provides a mould roof beam for building, mould roof beam for building includes the roof beam body, setting mould and strengthening rib, the setting mould encloses synthetic confined cavity roof beam shape by combined material, the both ends of setting mould are equipped with into thick liquid mouth and play thick liquid mouth respectively, the roof beam body forms in the setting mould through the grout, just the outer wall of roof beam body with the inner wall bonding of setting mould, the strengthening rib inlays to be established in the roof beam body, follow the length direction of setting mould extends, just the strengthening rib have with the shape that the length direction of roof beam body suited. Through the technical scheme, compared with the concrete reinforced building beam with the same cross section area, the strength of the die beam, such as compression strength, bending strength, shearing strength and the like, is greatly improved, the maximum strength can reach 60%, and the die beam still has higher support strength when the space is smaller.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a mould roof beam for building, includes the roof beam body, its characterized in that still includes:
the beam body is formed in the shaping mold through grouting, and the outer wall of the beam body is bonded with the inner wall of the shaping mold;
the reinforcing rib is embedded in the beam body and extends along the length direction of the shaping mold, and the reinforcing rib has a shape matched with the length direction of the beam body;
the beam body is made of concrete or mortar.
2. The architectural mold beam in accordance with claim 1, wherein said shaping mold is a linear or curved columnar shape that is hollow along a length direction.
3. The mold beam for construction as claimed in claim 1, wherein the sectional shape of the shaping mold is a circle, an ellipse, a T, a h, a channel or a box.
4. The mold beam for construction as claimed in claim 1, wherein the composite material is aramid fiber, basalt fiber, carbon fiber or metal matrix composite material.
5. The mold beam for construction as claimed in claim 1, wherein the reinforcing rib is a basalt composite rib or a steel bar.
6. The mold beam for construction as claimed in any one of claims 1 to 5, wherein the shaping mold comprises a first end cap, a second end cap and a reinforcing pressing plate, the first end cap and the second end cap are detachably connected to form a closed hollow beam shape, and the reinforcing pressing plate is wrapped and fixed on the outer side of the detachable connection.
7. The mold beam for construction as claimed in claim 6, wherein the shaping mold further comprises a connecting pipe disposed between the first and second end caps and detachably connected with the first and second end caps end to form a closed hollow beam shape, and the reinforcing pressing plate is wrapped and fixed outside the detachable connection.
8. The architectural mold beam in accordance with claim 7, wherein said detachable connection is a bayonet connection.
9. The mold beam for buildings according to any one of claims 1 to 5, wherein an installation anchor bolt installation hole is provided at an end portion of the mold beam and along a length direction of the mold beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733458.2U CN212021104U (en) | 2019-10-15 | 2019-10-15 | Mould roof beam for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733458.2U CN212021104U (en) | 2019-10-15 | 2019-10-15 | Mould roof beam for building |
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| Publication Number | Publication Date |
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| CN212021104U true CN212021104U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921733458.2U Active CN212021104U (en) | 2019-10-15 | 2019-10-15 | Mould roof beam for building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083815A (en) * | 2021-09-26 | 2022-02-25 | 中车青岛四方机车车辆股份有限公司 | Cross beam forming die, cross beam forming process and cross beam |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083815A (en) * | 2021-09-26 | 2022-02-25 | 中车青岛四方机车车辆股份有限公司 | Cross beam forming die, cross beam forming process and cross beam |
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Effective date of registration: 20211124 Address after: South 159, 202b, 2 / F, building 1, yard 1, Lize Zhongyi Road, Chaoyang District, Beijing, 100102 Patentee after: State Railway New Material (Beijing) Technology Co.,Ltd. Address before: No. 217, Jiulong Road, Hongkou District, Shanghai 200080 Patentee before: Zhang Yumin Patentee before: Zhang Chao |