Method for reinforcing internal formwork of building exterior wall

Abstract

The present invention relates to a method for reinforcing the internal formwork of a building exterior wall, comprising the following steps: S1, firstly, it is necessary to prepare all tools and raw materials, including the main keel, the secondary keel, and the wrench, etc., and divide the progress of the project according to the divided procedures to brake the progress plan of the project; S2, draw lines on the shear wall, clean up the garbage on the wall, cut and assemble the formwork, ensure that the gap is tight, install screws and water stop plates on the underground exterior wall, and set the distance between them; S3, install the secondary keel, fit the formwork and arrange it, install the main keel through the connecting rod and the joint, and finally install the gasket and the nut, and check the verticality and flatness; S4, the formwork is installed in a dislocated manner, first closed with iron wire, and then reinforced with a matching fixing card. The present invention uses the above-mentioned technical means to ensure that the formwork cannot be deformed whether in the initial installation or the later stage of pouring, thereby ensuring that the poured wall has a high consistency.

Description

Technical Field

[0001] The invention relates to the technical field of exterior wall inner formwork reinforcement, in particular to a building exterior wall inner formwork reinforcement method. Background Art

[0002] A method for reinforcing the internal formwork of a building exterior wall disclosed in a Chinese patent (CN 113775174 A) solves the problem that when the operating surface outside the basement is insufficient, construction workers cannot reinforce the underground exterior wall structure formwork in the complex confined space in the foundation pit. However, it does not solve the problem that during the initial reinforcement of the existing building exterior wall, the position between the formwork and the keel is usually adjusted by bolts so that the formwork can be poured and cured according to a predetermined size. Although this method can ensure the accuracy of the exterior wall pouring, this connection method often causes a part of the bolts to loosen in actual use because it is fixed by bolts and the formwork has a certain elasticity, thereby causing the formwork of a certain part to deform, which in turn causes the wall thickness to be inconsistent after pouring, and requires manual grinding again, which not only consumes labor, but also may cause some hidden safety hazards in the wall, which is not conducive to actual application and operation. Summary of the invention

[0003] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a method for reinforcing the inner formwork of a building exterior wall.

[0004] The technical solution of the present invention is as follows: a method for reinforcing an inner formwork of a building exterior wall comprises the following steps:

[0005] S1. First, you need to prepare all the tools and raw materials, including the main keel, secondary keel, and wrench, etc., divide the progress of the project according to the divided procedures, and brake the project progress plan;

[0006] S2. Draw lines on the shear wall, clean up the garbage on the wall, cut and assemble the template, ensure the gaps are tight, install screws and water stop plates on the underground exterior wall, and set the distance between them;

[0007] S3. Install the secondary keel, arrange it in accordance with the template, and install the main keel through connecting rods and joints to reinforce the main keel. Finally, install the gasket and nut, and check the verticality and flatness;

[0008] S4. For staggered installation of the formwork, first close it with wire, then reinforce it with matching fixing cards. Use different numbers of fixing cards according to the different inner diameters of the building formwork, and use fixing cards to reinforce it according to the actual situation. After the formwork is closed and reinforced, the bottom of the formwork should be controlled at a distance of five to ten millimeters from the ground, and fill the gap with concrete;

[0009] S5. Fixing cards should also be added to the upper and lower interfaces of the building template to ensure the stability of the building template when in use. After the building template is installed, in order to protect the template, four wooden squares should be placed around it, and the wooden squares should be fixed with steel pipes at intervals on the wooden squares to vertically position the template;

[0010] S6. The upper and lower interfaces of the two building templates are reinforced with fixed steel belts. The concrete pouring of the building template within seven meters can be poured in one time, and the pouring of more than seven meters can be done in two times. The second pouring should be done thirty to sixty minutes after the first pouring.

[0011] S7. Wait until the concrete reaches the solidification standard before removing the formwork.

[0012] As a preferred implementation, structural columns can be selected when reinforcing the wall, and they can be set at the outer corners, staggered places, junctions, etc. to increase the rigidity.

[0013] As a preferred implementation, reinforcement is performed through a concrete layer, steel bars are implanted and concrete is poured on both sides of the walls of the first and second floors, and an unloading method can be selected when reinforcing the walls.

[0014] As a preferred embodiment, the template is cut and assembled to ensure that the gaps are tight, and then screws and water stop plates are installed on the underground exterior wall.

[0015] As a preferred implementation, a ring beam may be selected according to actual conditions to increase the stability of the building foundation and avoid the impact of uneven settlement on the house.

[0016] As a preferred implementation, a pull ring can be pre-buried, and the oblique cable and the horizontal cable are fixed on the pull ring through the steel cable oblique pull, and the angle is controlled at forty to fifty degrees. The steel cable connection uses a basket screw.

[0017] As a preferred implementation, the wall, column formwork and beam side formwork must be removed forty-eight hours after the platform and beam concrete is poured.

[0018] As a preferred implementation, the bottom formwork of all cantilever components shall not be removed until the concrete test blocks have been conventionally cured for 28 days.

[0019] As a preferred embodiment, concrete can be used in the form of UHPC specifications.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] In the present invention, firstly, the project plan is scheduled in advance and the necessary tools are prepared. Then, the lines are drawn on the shear wall, the screws and water stop plates are installed after cleaning the garbage, and the distance between them is set so that the screws and water stop plates can be better used. Then, the secondary keel and the main keel can be installed on the template. During this period, the main and secondary keels can be fixed by nuts. Then, the templates are installed in an offset manner to ensure that they are in the best stress-bearing position, and each template is initially fixed by wire. Then, secondary reinforcement is performed by fixing cards, and the template is vertically positioned by wooden planks. The verticality of the template can also be corrected by wooden planks. Then, concrete can be poured. After the concrete is completely solidified, the template can be removed. Through the above-mentioned technical means, it is ensured that the template cannot be deformed either in the early stage of installation or in the later stage of pouring, thereby ensuring that the poured wall has a high consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a schematic diagram of the overall process of a method for reinforcing an inner formwork of a building exterior wall. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1 As shown, the present invention provides a technical solution: comprising the following steps:

[0029] S1. First, you need to prepare all the tools and raw materials, including the main keel, secondary keel, and wrench, etc., divide the progress of the project according to the divided procedures, brake the project progress plan, and make a progress plan based on the actual progress of the project through preliminary analysis and judgment of the materials and tools needed;

[0030] S2. Draw lines on the shear wall, clean up the garbage on the wall, cut and assemble the template to ensure the gap is tight, install screws and water stop plates on the underground exterior wall, set the distance between them, mark the wall by drawing lines, and install water stop plates to prevent groundwater from gushing out due to improper construction;

[0031] S3. Install the secondary keel, fit the template and arrange it. Install the main keel through connecting rods and joints to reinforce the main keel. Finally, install gaskets and nuts, check the verticality and flatness. Install the secondary keel and the main keel to increase the rigidity of the reinforced cavity, fix it by installing gaskets and nuts, and check the verticality and flatness to prevent it from tilting.

[0032] S4. For staggered installation of the template, first close it with iron wire, and then reinforce it with matching fixing cards. Use different numbers of fixing cards according to the building templates with different inner diameters, and use fixing cards to reinforce according to actual conditions. After the template is closed and reinforced, the bottom of the template should be controlled to be five to ten millimeters away from the ground, and fill the gap with concrete. Use iron wire to perform preliminary fixation first. After preliminary fixation, use fixing cards to reinforce the template as a whole. The number and size of fixing cards can be adjusted according to actual needs and different materials. Assuming that the distance between the bottom of the template and the ground is five millimeters, the gap can be filled with concrete caulking, which can not only increase stability but also have a sealing effect;

[0033] S5. Fixing cards should also be added to the upper and lower interfaces of the building template to ensure the stability of the building template when in use. After the building template is installed, in order to protect the template, four wooden squares should be placed around it, and the wooden squares should be fixed with steel pipes at intervals on the wooden squares to vertically position the template. By setting wooden squares, the stability of the template can be increased, and the wooden squares can also be used to correct the template. If the template is skewed, the wooden squares should be corrected in advance to prevent the wooden squares from skewing. The distance between the wooden squares can be set according to the actual situation. For example, if the template is large, it can be set to 50 cm per square and placed as densely as possible.

[0034] S6. The upper and lower interfaces of the two building templates are reinforced with fixed steel belts. The building template can be poured with concrete within seven meters at one time, and poured twice for more than seven meters. The second pouring is carried out thirty to sixty minutes after the first pouring. Within seven meters, the bottom concrete can still be kept in contact with the air, while more than seven meters need to be poured twice to avoid insufficient concrete curing and affect the pouring quality;

[0035] S7. Wait until the concrete reaches the solidification standard before removing the formwork. Wait until all processes are completed and accepted before removing the formwork.

[0036] In this embodiment, first, the project plan is scheduled in advance and the necessary tools are prepared. Then, lines are drawn on the shear wall, and screws and waterstops are installed after cleaning up the garbage. The distance between them is set so that the screws and waterstops can be better used. Then, the secondary keel and the main keel can be installed on the formwork. During this period, the primary and secondary keels can be fixed by nuts. Then, the formwork is installed in an offset manner to ensure that it is in the best stress position, and each formwork is initially fixed by wire. Then, a secondary reinforcement is performed by fixing cards, and the formwork is vertically positioned by wooden planks. The verticality of the formwork can also be corrected by wooden planks. Then, the concrete can be poured. After the concrete is completely solidified, the formwork can be removed.

[0037] Example 2

[0038] like Figure 1 As shown, structural columns can be selected when reinforcing walls. Structural columns can be set at exterior wall corners, staggered places, junctions, etc. to increase rigidity. Structural columns can be used in some wall locations that require special reinforcement, thereby increasing the wall's bearing strength.

[0039] Among them, reinforcement is carried out through the concrete layer, and steel bars are implanted and concrete is poured on both sides of the walls of the first and second floors. The unloading method can also be selected when reinforcing the wall. The strength and corresponding toughness of the wall can also be increased by implanting steel bars.

[0040] When cutting and assembling the template, the gaps must be tight, and then screws and water stop plates are installed on the underground exterior wall. In actual use, the assembly spacing after the template is cut should be controlled between five millimeters and one centimeter, and should not exceed one centimeter.

[0041] Among them, a ring beam can be selected according to actual conditions to increase the stability of the building foundation and avoid the impact of uneven settlement on the house. Through the above settings, while increasing the stability of the foundation, it can also have an earthquake-proof effect.

[0042] Among them, the pull ring can be embedded in advance and pulled diagonally by steel cables. The oblique cables and horizontal cables are fixed on the pull ring. The angle is controlled at forty to fifty degrees. The steel cables are connected with basket screws. In this way, the formwork can be fixed by tension, which is suitable for some windy weather. Strong winds may cause the fixed formwork to become skewed, which can be prevented by the above-mentioned technical means.

[0043] Among them, the wall, column formwork and beam side formwork must be removed only forty-eight hours after the platform and beam concrete are poured. The above technical solution is to ensure that the platform and beam concrete are fully solidified and to prevent the wall formwork from being removed before the concrete soil is completely solidified, which may cause the platform and beam concrete to deform or even break.

[0044] Among them, the bottom formwork of all cantilever components must be removed only after the concrete test blocks have been routinely cured for 28 days. The above settings can ensure that the concrete is fully solidified after 28 days and will not deform and exceed the bottom formwork.

[0045] Among them, concrete can be used in UHPC model specifications. UHPC is high-strength concrete. This material can further enhance the bearing capacity of the wall.

[0046] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for reinforcing the internal formwork of a building exterior wall, characterized in that: The following steps are involved: S1. First, you need to prepare all the tools and raw materials, including the main keel, secondary keel, and wrench, divide the progress of the project according to the divided procedures, and make a project progress plan; S2. Draw lines on the shear wall, clean up the garbage on the wall, cut and assemble the template, ensure the gaps are tight, install screws and water stop plates on the underground exterior wall, and set the distance between them; S3. Install the secondary keel, arrange it in accordance with the template, and install the main keel through connecting rods and joints to reinforce the main keel. Finally, install the gasket and nut, and check the verticality and flatness; S4. For staggered installation of the formwork, first close it with wire, then reinforce it with matching fixing cards. Use different numbers of fixing cards according to the different inner diameters of the building formwork, and use fixing cards to reinforce it according to the actual situation. After the formwork is closed and reinforced, the bottom of the formwork should be controlled at a distance of five to ten millimeters from the ground, and fill the gap with concrete; S5. Fixing cards should also be added to the upper and lower interfaces of the building template to ensure the stability of the building template when in use. After the building template is installed, in order to protect the template, four wooden squares should be placed around it, and the wooden squares should be fixed with steel pipes at intervals on the wooden squares to vertically position the template; S6. The upper and lower joints of the two building templates are reinforced with fixed steel belts. The building template is poured with concrete within seven meters at one time, and poured in two times for more than seven meters. The second pouring is carried out thirty to sixty minutes after the first pouring. S7. Wait until the concrete reaches the solidification standard before removing the formwork.

2. The method for reinforcing the inner formwork of a building exterior wall according to claim 1, characterized in that: The templates are cut and assembled to ensure tight gaps, and then screws and waterstops are installed on the underground exterior walls.

3. The method for reinforcing the inner formwork of a building exterior wall according to claim 1, characterized in that: According to the actual situation, ring beams are selected to increase the stability of the building foundation and avoid the impact of uneven settlement on the house.

4. The method for reinforcing the inner formwork of a building exterior wall according to claim 1, characterized in that: The bottom formwork of all cantilever components can only be removed after the concrete test blocks have been routinely cured for 28 days.

5. The method for reinforcing the inner formwork of a building exterior wall according to claim 1, characterized in that: The concrete is of UHPC type and specification.

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