Concrete pouring process for cast-in-place frame structure in building construction

Abstract

The invention relates to the technical field of concrete pouring, in particular to a cast-in-place frame structure concrete pouring process in building construction, which comprises the following steps: S1, preparation before construction, drawing analysis and arrangement, S2, template installation, reinforcement cage building, water stop screw installation, reinforcement positioning by adopting a positioning device, and reinforcement protection layer thickness adjustment. S3, concrete preparation and pouring, and S4, in the pouring process, a formwork is checked, correction and repair are conducted in time according to the problem of the formwork, and the influence on the construction progress and the reliability of a poured concrete body is avoided; s5, concrete curing; and S6, form removal and surface treatment. The two side formworks are fixed through the three-section type water stop screws, the outer side rods can be repeatedly used, economical efficiency is good, the structure is optimized, the requirement for tightening torque of nuts is lowered, construction is more convenient and reliable, meanwhile, a positioning device is arranged, the thickness of a steel bar protection layer is stably and reliably guaranteed, waste steel bars are recycled, and the resource utilization rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pouring, and in particular to a concrete pouring process for a cast-in-place frame structure in building construction. Background Art

[0002] The quality requirements for the upstream and downstream wing wall projects of the sluice station are high. For example, the deviations of steel bar binding and steel bar protective layer thickness must be controlled within the allowable range.

[0003] The steel bar protective layer refers to the distance from the outer periphery of the steel bar to the concrete surface in the concrete structure. Its main function is to protect the steel bar from oxidation and corrosion. If the thickness of the steel bar protective layer is unqualified, whether it is too thin or too thick, it will have a series of adverse effects on the concrete structure.

[0004] The protective layer of the steel bar is too thin and the steel bar is corroded: If the protective layer is too thin, the steel bar is easily exposed to the atmospheric environment and corroded by oxides, chloride ions and other substances, resulting in rust on the surface of the steel bar, which in turn accelerates the breakage of the steel bar.

[0005] If the protective layer is too thick, the temperature deformation constraint of the concrete surface will be reduced, which will easily cause concrete cracks and affect the appearance. In addition, more concrete materials are required, which increases the difficulty and cost of construction. At the same time, too thick a protective layer may also lead to the instability of the formwork support system, increasing the risk of construction.

[0006] In the existing construction process, many problems are encountered, such as "poor joint quality", "too few steel bar binding points", "too many joints of steel bars with the same cross-section", and "large deviation in the steel bar installation position". Among them, the deviation in the steel bar installation position is large, accounting for as high as 82.3% according to statistics.

[0007] The biggest problem encountered in the wing wall reinforcement binding construction is the "large deviation in the reinforcement installation position", and there are many factors that cause this problem, including: low stiffness of plastic pads, old steel bar bending machine equipment, insufficient pre-job training, lack of quality supervision personnel, insufficient number of wire binding passes, excessive spacing between tie bars, and uneven tightening torque of waterstop screws and nuts.

[0008] Among them, the main factors affecting the deviation of the steel bar installation position are the low stiffness of the plastic pad and the uneven tightening torque of the water-stop screw and the nut. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a concrete pouring process for a cast-in-place frame structure in building construction.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions: A concrete pouring process for a cast-in-place frame structure in building construction, comprising: Step S1: Preparation before construction, drawing analysis and arrangement, determination of construction plan and technical requirements, training of construction personnel on construction specifications, making of templates, inspection of templates, and timely handling of problems found; Step S2: Install the formwork and build a steel skeleton. Build a steel skeleton inside the formwork to ensure the strength and stability of the building; install water-stop screws, fix the formwork with the water-stop screws and mountain-shaped clamps, use a positioning device to position the steel bars, and adjust the thickness of the steel bar protective layer; Step S3: Concrete preparation and pouring: prepare concrete according to design requirements. Before pouring, ensure that there is no debris or water in the formwork. Concrete pouring should be carried out continuously and vibrated with a vibrating rod. When vibrating, try to avoid collision with the formwork, steel bars, and embedded parts. Step S4: During the pouring process, check the formwork. If there is deformation, leakage, or expansion of the formwork, make adjustments in a timely manner, and correct and repair the formwork problems in a timely manner to avoid affecting the construction progress and the reliability of the poured concrete body; Step S5: concrete curing: after the concrete pouring is completed, timely curing is performed; Step S6: demolding and surface treatment: demolding after the concrete reaches a certain strength; after demolding, cleaning and trimming the concrete surface to ensure that the surface is flat and free of defects.

[0011] Preferably, in step S2, a three-stage water-stop screw is used to fix the templates on both sides, and the water-stop screw includes an outer rod, a conical nut and an inner rod, and the outer rod and the inner rod are both provided with threads. The conical nut connects the outer rod and the inner rod, and the conical nut abuts against the inner side of the template.

[0012] Preferably, square timber and steel pipes are provided on one side of the formwork, and the square timber and steel pipes are staggered to support the formwork, the mountain-shaped clamps and the steel pipes are correspondingly arranged, and the outer rods penetrate the mountain-shaped clamps and are detachably connected.

[0013] Preferably, a water stop plate and a positioning device are provided on the inner rod, and the positioning device is used to position the steel skeleton to ensure that the thickness of the steel protection layer is qualified. The positioning device includes a thickened nut and a steel short rod, one end of the steel short rod is welded to the side of the thickened nut, and the length of the steel short rod is not more than 100 mm. The thickened nut is connected to the inner rod by a threaded connection, and the steel short rod is tied and fixed to the steel skeleton.

[0014] Preferably, the positioning device is used in the following manner: A. Recycle the short steel bars at the construction site, purchase thickened nuts, and the construction workers weld the two together to make a positioning device. The materials are taken from the site, which reduces the construction cost and is simple to operate; B. External threads that are suitable for thickened nuts and conical nuts are processed at both ends of the inner rod, and the positioning device is installed on the inner rod. After the template is installed, the water-stop screw is installed through the mountain clamp and conical nut. The water-stop screw effectively increases the restraint force on the template; C. Use a tape measure to measure the distance between the template and the outermost steel bar. According to the designed steel bar protective layer thickness, rotate the thickening nut and adjust the position of the positioning device to ensure that the distance between the inner surface of the template and the positioning device is close to the designed value; D. After the positioning device is adjusted into place, it is tied and fixed to the nearby transverse or vertical reinforcements to position the steel bar skeleton and ensure that the thickness of the steel bar protective layer is qualified.

[0015] Preferably, in step S4, the template is corrected and repaired by using a correction device, which includes an elastic frame, a sliding seat and a connector; The elastic frame is provided with a plurality of sliding seats, the sliding seats are slidably connected to the elastic frame, an adjusting rod passes through the sliding seat, and the adjusting rod is connected to the sliding seat via a screw pair; The connector is arranged at one end of the adjusting rod, and is used to connect the template or the steel pipe. The connector adopts a screw disk, a vacuum suction cup or a clamp, and a tensioner is arranged between the adjusting rods.

[0016] Preferably, a connecting sleeve is rotatably provided on the lower side of the sliding seat, a mounting hole adapted to the adjusting rod is opened in the middle of the sliding seat and the connecting sleeve, a connecting port corresponding to the connecting sleeve is provided on the upper side of the sliding seat, and the correction device is provided in multiple groups, which are connected by connecting sleeves.

[0017] Preferably, multiple groups of the correction devices are stacked in a cross shape and connected in the middle by a connecting sleeve. The multiple groups of the correction devices form a correction frame, and an electric telescopic rod is provided in the middle of the correction frame, an adjustment rod is provided on the outside of the correction frame, and connectors are provided on the lower sides of the electric telescopic rod and the adjustment rod.

[0018] Preferably, a plurality of groups of the correction devices are connected end to end via connecting sleeves to form a frame, and a deformation sensor is provided on the elastic frame.

[0019] Preferably, the correction device is used in the following manner: a. Before or during pouring, if the formwork is found to be deformed, install a correction device, or assemble the correction device into a correction frame, and adjust the correction frame structure according to the deformation problem of the formwork; b. Turn the adjusting rod, the screw plate is connected to the formwork through the screws, the vacuum suction cup is adsorbed on the formwork surface through negative pressure, and the clamp is used to connect with the steel pipe to ensure that the correction device is fixed reliably. The correction device can assist in reinforcing the formwork, improve the reliability of formwork support, improve the bearing capacity of the formwork, and avoid expansion of the formwork due to high pouring pressure; c. After the correction device is installed, the deformation of the template is corrected by applying pressure through the adjusting rod or the electric telescopic rod to ensure the flatness of the template and avoid affecting the pouring construction; d. If the template is deformed and a gap appears in the template, causing leakage, a tensioner is set between the adjustment rods on the two templates to apply tension to bring the two templates closer together and eliminate the gap; e. If the installation period of the wooden formwork is too long and cracks are caused by the shrinkage of the wooden formwork, it is necessary to water it in advance to make it expand and close the seams, and at the same time use a correction device to ensure that the cracks are tightly connected.

[0020] Preferably, a vibration device is provided on the correction device, and the vibration device is used to assist the correction device. During the correction process of the formwork, the vibration device promotes the flow of concrete through vibration, avoids continuous squeezing of the formwork, and reduces the correction pressure of the formwork. The vibration device includes a control rod, a spring and a vibrator.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts three-stage water-stop screws to fix the templates on both sides. The outer rods can be repeatedly used, saving 10% of the screw usage, with good economy, optimized structure, reduced tightening torque requirements for nuts, more convenient and reliable construction, and equipped with a positioning device to stably and reliably ensure the thickness of the steel bar protective layer, reuse discarded steel bars, reduce environmental protection costs, and improve resource utilization; 2. The present invention is provided with a correction device. When a problem occurs in the template, timely and reliable adjustments can be made. The template is corrected and adjusted by applying pressure through the adjusting rod. At the same time, the elastic frame is deformed by force and pressure is applied flexibly, which is stable and reliable, avoiding excessive correction and damage to the template, thereby improving reliability and convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A workflow diagram of a concrete pouring process for a cast-in-place frame structure in building construction proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the template, steel bar skeleton and water-stop screw assembly for a concrete pouring process of a cast-in-place frame structure in a building construction proposed by the present invention; Figure 3 This is a schematic diagram of a top view of the structure of a water-stop screw in a concrete pouring process for a cast-in-place frame structure in building construction proposed by the present invention; Figure 4 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 5 A schematic diagram of the three-dimensional structure of a correction device for a concrete pouring process of a cast-in-place frame structure in building construction proposed by the present invention; Figure 6This is a structural schematic diagram of a first embodiment of a concrete pouring process for a cast-in-place frame structure in building construction proposed by the present invention; Figure 7 This is a structural schematic diagram of a second embodiment of a concrete pouring process for a cast-in-place frame structure in building construction proposed by the present invention; Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a vibration device for a concrete pouring process of a cast-in-place frame structure in building construction.

[0023] In the figure: 1. formwork; 2. steel skeleton; 3. square wood; 4. steel pipe; 5. water-stop screw; 51. outer rod; 52. conical nut; 53. inner rod; 54. positioning device; 6. mountain-shaped clamp; 7. correction device; 71. elastic frame; 72. sliding seat; 73. adjusting rod; 74. connecting sleeve; 75. screw disk; 76. tensioner; 77. vacuum suction cup; 78. clamp; 79. electric telescopic rod; 8. vibration device; 81. control rod; 82. spring; 83. vibrator; 84. buffer ball. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Reference Figure 1-8 , a concrete pouring process for a cast-in-place frame structure in building construction, comprising: Step S1: Pre-construction preparation, drawing analysis and arrangement, determination of construction plan and technical requirements, and training of construction personnel on construction specifications, with a focus on steel bar binding, formwork installation, concrete pouring direction and pouring methods; deployment of construction quality supervision personnel to reduce irregular operations by construction personnel, thereby ensuring construction quality; Sampling inspection and testing of steel bar raw materials and test pieces, make template 1 according to the requirements of design drawings, check template 1 to ensure that the template surface is flat, free of debris and deformation, deal with problems in time, repair and correct template 1, and if necessary, use thin steel plates to wrap template 1 to smooth the surface and ensure the flatness of the poured concrete surface.

[0026] Step S2: Install the formwork 1 and build the steel frame 2. The formwork is a structure used for forming and supporting when pouring concrete. In the cast-in-place frame structure, the formwork 1 includes a wooden formwork, seven plywood and a steel formwork. When supporting the formwork, it is necessary to ensure that the support system of the formwork 1 is stable and reliable to prevent the formwork 1 from deforming or shifting during the pouring process. Steel bars are the skeleton of concrete structures, and their quality directly affects the overall strength and stability of concrete structures. In cast-in-place frame structures, steel bars are usually processed into semi-finished products in logistics processing plants and then tied on site; horizontal and vertical connections of steel bars are made by tying lap joints, flash butt welding, arc welding, electroslag pressure welding or sleeve extrusion connection; When installing the formwork 1, ensure that the position of the formwork 1 is accurate and firmly fixed to avoid displacement or deformation during the pouring process; build a steel skeleton 2 inside the formwork 1 according to the design requirements to ensure the strength and stability of the building body, maintain and repair the equipment for processing steel bars to ensure its working reliability; install the water stop screw 5, fix the formwork 1 through the water stop screw 5 and the mountain-shaped clamp 6, use a torque wrench to tighten the water stop screw to ensure uniform torque, at least 78N·m, use a positioning device to position the steel bars, adjust the thickness of the steel bar protection layer, that is, the distance between the formwork and the outermost steel bar, traditionally, plastic gaskets are used. Due to the pulling effect of the formwork on both sides of the wing wall, the plastic gasket may be squeezed and deformed due to its own insufficient rigidity, resulting in a small thickness of the protection layer. The use of wheeled concrete pads to control the thickness of the protection layer can effectively improve the pass rate, but the cost is relatively high; In addition, a three-stage water-stop screw is used to fix the templates 1 on both sides. The water-stop screw 5 includes an outer rod 51, a conical nut 52 and an inner rod 53. The outer rod 51 and the inner rod 53 are both provided with threads. The conical nut 52 connects the outer rod 51 and the inner rod 53. The conical nut 52 abuts against the inner side of the template 1 and is positioned by the conical nut 52. During the support process of the template 1, the inner rod 53 is placed between the walls in a centered state. After the pouring is completed, the outer rod 51 and the conical nut 52 can be removed and can be repeatedly used. There is no need to cut the screw later, and the screw eye is sealed with mortar, which produces significant cost-effectiveness. The three-stage water-stop screw reduces the possibility of mold expansion during concrete pouring, and the screw tightening force is uniform and consistent, which reduces the later repair construction and has no negative impact on environmental protection. One side of the template 1 is provided with square wood 3 and steel pipe 4, which are staggered to support the template 1, and the mountain-shaped card 6 is correspondingly arranged with the steel pipe 4, and the outer rod 51 passes through the mountain-shaped card 6, and the connection between them is detachable.

[0027] The inner rod 53 is provided with a water stop plate and a positioning device 54. The positioning device 54 is used to position the steel skeleton 2 to ensure that the thickness of the steel protection layer is qualified. The positioning device 54 includes a thickened nut and a steel short rod. One end of the steel short rod is welded to the side of the thickened nut. The diameter of the on-site water stop screw is 16mm, so the welded nut adopts a thickened 16 nut. The reason for using the thickened nut is to reduce the activity space of the device and facilitate welding. The welded short steel bar adopts 12 threaded steel. Considering that the normal steel bar design spacing is 200mm, the length of the steel short rod is not more than 100mm. The thickened nut is connected to the inner rod 53 by a threaded connection, and the steel short rod is tied and fixed to the steel skeleton 2.

[0028] How to use the positioning device 54: A. Recycle the short steel bars at the construction site, purchase thickened nuts, and the construction workers weld the two together to make a positioning device 54, that is, a steel bar protective layer control device. The materials are taken from the site, which reduces the construction cost and is easy to operate. The device is commissioned to be made by a factory. After calculation, the cost of each steel bar protective layer control device is 0.5 yuan / piece. The materials are taken from the steel bar waste pool at the site, and the cost-effectiveness is significant. The installation of the device is interspersed with the template installation stage, and the progress is not greatly affected. This countermeasure achieves the goal of energy saving and material reduction, and does not have a significant negative impact on environmental protection. B. External threads adapted to the thickened nut and the tapered nut 52 are processed at both ends of the inner rod 53, and the positioning device 54 is installed on the inner rod 53. After the template 1 is installed, the water-stop screw 5 is installed through the mountain clamp 6 and the tapered nut 52. The water-stop screw effectively increases the restraint force on the template 1; The positioning device 54 is installed between the template and the outermost steel bar. Considering that the positions of the screw and the steel bar are not completely fixed, the externally installed positioning device 54 has a certain amount of rotation, but the rotation amount will not exceed 180°, and the maximum adjustment range is 2mm; C. Use a tape measure to measure the distance between the template and the outermost steel bar. According to the designed steel bar protective layer thickness, rotate the thickening nut to adjust the position of the positioning device 54 to ensure that the distance between the inner surface of the template 1 and the positioning device 54 approaches the designed value. D. After the positioning device 54 is adjusted into place, it is tied and fixed with the nearby transverse reinforcement or vertical reinforcement, so as to position the steel skeleton 2 and ensure that the thickness of the steel protection layer is qualified.

[0029] Step S3: Concrete preparation and pouring. Concrete is prepared according to the design requirements to ensure that the quality of the concrete meets the standards. During the transportation of concrete, the mixing drum should be rotated at a low speed to prevent the concrete from segregating or deteriorating. Before pouring, ensure that there are no debris or water accumulation in the formwork 1. Concrete pouring should be carried out continuously and vibrated with a vibrating rod. When vibrating, try to avoid colliding with the formwork, steel bars, and embedded parts to avoid damaging the support and fixation. The vibration time is generally 20 to 30 seconds, until the concrete no longer sinks, no bubbles appear, and the surface shows floating slurry.

[0030] Step S4: During the pouring process, check the formwork 1. If there is deformation, leakage or expansion of the formwork, make adjustments in time, and correct and repair the problems of the formwork 1 in time to avoid affecting the construction progress and the reliability of the poured concrete body; check the stability of the support of the formwork 1 and the tightness of the joints of the formwork to ensure that the elevation, position and cross-sectional dimensions of the formwork 1 are consistent with the design, and the support and fixation of the formwork 1 are reliable; The correction and repair of the template 1 is performed by using a correction device 7, which includes an elastic frame 71, a sliding seat 72 and a connector. The elastic frame 71 is provided with a plurality of sliding seats 72, and the sliding seats 72 are slidably connected with the elastic frame 71. An adjusting rod 73 runs through the sliding seat 72, and the adjusting rod 73 is connected with the sliding seat 72 through a screw pair, and the connector is provided at one end of the adjusting rod 73. The connector is used to connect the template 1 or the steel pipe 4. The connector adopts a screw disk 75, a vacuum suction cup 77 or a clamp 78. The template 1 is pulled closer and the screw disk 75 is used to eliminate the gap to ensure the connection strength between the screw disk 75 and the template 1. If the deformed template 1 needs to be corrected and flattened or the concave is eliminated, a vacuum suction cup 77 can be used. A tensioner 76 is provided between the adjustment rods 73. The tensioner 76 is as close to the screw disk 75, the vacuum suction cup 77 or the clamp 78 as possible to avoid the adjustment rod 73 from being skewed during the tightening process. The tensioner 76 includes a housing, a worm wheel and a worm. A winding wheel is provided on one side of the worm wheel. A cable is wound on the winding line to tighten the adjustment rod 73. The worm wheel has a self-locking feature to avoid loosening and ensure the tightening reliability. A connecting sleeve 74 is rotatably provided at the lower side of the sliding seat 72. A mounting hole adapted to the adjusting rod 73 is provided in the middle of the sliding seat 72 and the connecting sleeve 74. A connecting port corresponding to the connecting sleeve 74 is provided at the upper side of the sliding seat 72. The correction device 7 is provided with multiple groups, and they are connected by the connecting sleeve 74. How to use the calibration device 7: a. Before or during pouring, if the formwork 1 is found to be deformed, install the correction device 7, or assemble the correction device 7 into a correction frame, and adjust the correction frame structure according to the deformation problem of the formwork 1; Embodiment 1, used for correcting the deformation of the template 1, multiple groups of correction devices 7 are stacked in a cross shape, and the middle part is connected by a connecting sleeve 74, and the multiple groups of correction devices 7 form a correction frame, the middle part of the correction frame is provided with an electric control telescopic rod 79, the outer side of the correction frame is provided with an adjustment rod 73, and the lower side of the electric control telescopic rod 79 and the adjustment rod 73 are provided with connectors; Embodiment 2, used for detecting the deformation of the template 1, multiple groups of correction devices 7 are connected end to end through connecting sleeves 74, arranged in a frame shape, fixed at multiple points, forming a detection surface, and a deformation sensor is arranged on the elastic frame 71. During pouring, the correction device 7 can be arranged at the place where the template 1 is prone to problems, and a deformation sensor is arranged on it. During the pouring process, the template 1 is deformed, and the deformation amount of the elastic frame 71 is indirectly detected to quickly determine the deformation position, which is convenient for construction personnel to make timely adjustments, or a tensioner 76 is arranged between the adjustment rods 73 on adjacent templates 1 to tighten and join multiple templates to eliminate gaps; b. Turn the adjusting rod 73, the screw plate 75 is connected to the template 1 through the screws, the vacuum suction cup 77 is adsorbed on the surface of the template 1 through negative pressure, and the clamp 78 is used to connect with the steel pipe 4 to ensure that the correction device 7 is fixed reliably. The correction device 7 can assist in reinforcing the template 1, improve the reliability of the template 1 support, improve the bearing capacity of the template 1, and avoid the expansion of the mold due to the high pouring pressure; c. After the correction device 7 is installed, the deformation of the template 1 is corrected by applying pressure through the adjustment rod 73 or the electric control telescopic rod 79 to ensure that the template 1 is flat and avoid affecting the pouring construction; d. If the template 1 is deformed and a gap appears in the mold, causing slurry leakage, a tensioner 76 is set between the adjustment rods 73 on the two templates 1 to apply tension to bring the two templates 1 closer together and eliminate the gap; e. If the wooden formwork is installed for too long and cracks are caused by shrinkage of the wooden formwork, it is necessary to water it in advance to make it expand and close the seams, and at the same time cooperate with the correction device 7 to ensure that the cracks are tightly connected.

[0031] Step S5: Concrete curing. After the concrete is poured, it should be cured in time. Generally, the curing time should not exceed 12 hours, that is, it should be covered and watered until the specified time. During the curing process, the concrete surface should be kept moist to avoid cracks or shrinkage in the concrete.

[0032] Step S6: demoulding and surface treatment; Demoulding: Demoulding can be carried out only after the concrete reaches a certain strength; be careful when removing the mould to avoid damaging the concrete surface; Surface treatment: After demoulding, clean and trim the concrete surface to ensure that the surface is flat and free of defects.

[0033] In addition, in case of uneven concrete pouring and bubbles caused by pitting or honeycomb on the surface of concrete pouring, or leakage of concrete caused by deformation of the template 1, the vibration device 8 is used to compensate and assist. While correcting and repairing the deformation of the template 1, the concrete is dispersed by vibration, which facilitates the restoration of the template 1 to its original state and avoids further squeezing of the template 1, which affects the correction work of the template 1. Because the vibration amplitude of the vibrator is too large, if it directly contacts the template 1, it may cause the template 1 to loosen or dislocate, affecting the reliability of pouring. Therefore, a vibration device 8 with lower power is used to slightly touch the vibration to improve the concrete pouring effect. A set of elastic frames 71 are hinged on the correction device 7, and the vibration device 8 is installed on the sliding seat 72 on the elastic frame 71. The elastic frame 71 supports the equipment for easy operation by construction personnel. The vibration device 8 includes a control rod 81, a spring 82 and a vibrator 83. In the process of correcting the template, the concrete is prompted to flow through vibration to avoid continuous squeezing of the template 1 and reduce the correction pressure of the template 1. The control rod 81 passes through the sliding seat 72 and is slidably connected therebetween. The spring 82 is arranged on the upper side of the sliding seat 72 to push the control rod 81 up and away from the template. The vibrator 83 is fixedly arranged at one end of the control rod 81. The control rod 81 is convenient for construction personnel to control the vibrator 83. By controlling the degree of compression, the force of vibration transmitted to the template 1 is adjusted. At the same time, it can be used for pressurization and vibration to repair the bulging and deformed template 1. A buffer ball 84 is movably arranged at the bottom of the vibrator 83. An installation cavity for accommodating the buffer ball 84 is opened at the bottom of the vibrator 83 to facilitate the free rolling of the buffer ball 84. The vibrator 83 places the buffer ball 84 against the surface of the formwork 1, starts vibration, and vibrates the concrete. The vibrator 83 moves quickly and adjusts the vibration position to eliminate bubbles on the surface of the concrete. In addition, the elastic frame 71 is deformed by force, which can eliminate part of the vibration energy and avoid affecting the normal operation of the correction device 7. Two sets of vibration devices 8 are set, which can work alternately. The non-working vibration device 8 can serve as a pillar, which is convenient for construction personnel to control the operation, reduce the labor intensity of construction, and improve the convenience of vibration operation.

[0034] In addition, if the size of the template 1 is insufficient and difficult to repair by the correction device 7, a layer of template 1 can be fixed by screws on the outside of the gap between the templates 1 on both sides to connect the templates on both sides. At the same time, concrete leakage can be avoided. If needed, soft materials such as foam boards or PU sponge strips can be filled in the gap to avoid concrete filling the gap and affecting subsequent surface treatment.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A concrete pouring process for a cast-in-place frame structure in building construction, characterized in that: include: Step S1: Pre-construction preparation, drawing analysis and arrangement, determination of construction plan and technical requirements, training of construction personnel on construction specifications, production of templates (1), inspection of templates (1), and timely handling of problems found; Step S2: installing the template (1) and constructing the steel frame (2), constructing the steel frame (2) inside the template (1) to ensure the strength and stability of the building; installing the water-stop screw (5), fixing the template (1) by means of the water-stop screw (5) and the mountain-shaped clamp (6), positioning the steel bars by means of a positioning device, and adjusting the thickness of the steel bar protective layer; Step S3: Concrete preparation and pouring: Concrete is prepared according to the design requirements. Before pouring, ensure that there is no debris or water in the formwork (1). Concrete pouring should be carried out continuously and vibrated with a vibrating rod. When vibrating, try to avoid collision with the formwork, steel bars, and embedded parts. Step S4: During the pouring process, check the formwork (1). If there is any deformation, leakage or expansion of the formwork, make adjustments in a timely manner. Correct and repair the problems of the formwork (1) in a timely manner to avoid affecting the construction progress and the reliability of the poured concrete body. The template (1) is corrected and repaired by using a correction device (7), wherein the correction device (7) comprises an elastic frame (71), a sliding seat (72) and a connector; A plurality of sliding seats (72) are provided on the elastic frame (71), the sliding seats (72) are slidably connected to the elastic frame (71), an adjusting rod (73) passes through the sliding seat (72), and the adjusting rod (73) is connected to the sliding seat (72) via a screw pair; The connector is arranged at one end of the adjusting rod (73), and is used to connect the template (1) or the steel pipe (4). The connector adopts a screw disk (75), a vacuum suction cup (77) or a clamp (78). A tensioner (76) is provided between the adjusting rods (73); Step S5: concrete curing: after the concrete pouring is completed, timely curing is performed; Step S6: demolding and surface treatment: demolding after the concrete reaches a certain strength; after demolding, cleaning and trimming the concrete surface to ensure that the surface is flat and free of defects.

2. The concrete pouring process for cast-in-place frame structure in construction according to claim 1, characterized in that: In step S2, the templates (1) on both sides are fixed with a three-stage water-stop screw. The water-stop screw (5) comprises an outer rod (51), a conical nut (52) and an inner rod (53). The outer rod (51) and the inner rod (53) are both provided with threads. The conical nut (52) connects the outer rod (51) and the inner rod (53). The conical nut (52) abuts against the inner side of the template (1).

3. The concrete pouring process for cast-in-place frame structure in construction according to claim 2, characterized in that: A square timber (3) and a steel pipe (4) are provided on one side of the template (1); the square timber (3) and the steel pipe (4) are arranged in a staggered manner and are used to support the template (1); the mountain-shaped clamp (6) and the steel pipe (4) are arranged correspondingly; the outer rod (51) passes through the mountain-shaped clamp (6) and is detachably connected therebetween.

4. The concrete pouring process for cast-in-place frame structure in construction according to claim 3 is characterized in that: The inner rod (53) is provided with a water stop sheet and a positioning device (54). The positioning device (54) is used to position the steel bar skeleton (2) to ensure that the thickness of the steel bar protective layer is qualified. The positioning device (54) comprises a thickened nut and a steel bar short rod. One end of the steel bar short rod is welded to the side of the thickened nut. The length of the steel bar short rod is not greater than 100 mm. The thickened nut is connected to the inner rod (53) by a threaded connection. The steel bar short rod is tied and fixed to the steel bar skeleton (2).

5. The concrete pouring process for cast-in-place frame structure in construction according to claim 4, characterized in that: The positioning device (54) is used in the following manner: A. Recycling short steel bars from the construction site, purchasing thickened nuts, and construction workers welding the two to make a positioning device (54). The materials are taken from the site, which reduces construction costs and is simple to operate; B. External threads adapted to the thickened nut and the conical nut (52) are machined at both ends of the inner rod (53), and the positioning device (54) is installed on the inner rod (53). After the template (1) is installed, the water-stop screw (5) is installed through the mountain clamp (6) and the conical nut (52). The water-stop screw effectively increases the restraining force on the template (1); C. Use a tape measure to measure the distance between the template and the outermost steel bar. According to the designed steel bar protective layer thickness, rotate the thickening nut to adjust the position of the positioning device (54) to ensure that the distance between the inner surface of the template (1) and the positioning device (54) approaches the designed value. D. After the positioning device (54) is adjusted into position, it is tied and fixed with the nearby transverse reinforcement or vertical reinforcement, thereby positioning the reinforcement skeleton (2) to ensure that the thickness of the reinforcement protective layer is qualified.

6. The concrete pouring process for cast-in-place frame structure in building construction according to claim 1, characterized in that: A connecting sleeve (74) is rotatably provided on the lower side of the sliding seat (72); a mounting hole adapted to the adjusting rod (73) is provided in the middle of the sliding seat (72) and the connecting sleeve (74); a connecting port corresponding to the connecting sleeve (74) is provided on the upper side of the sliding seat (72); and the correction device (7) is provided in a plurality of groups, which are connected by the connecting sleeve (74); A plurality of groups of the correction devices (7) are stacked in a cross-shaped configuration and connected in the middle by a connecting sleeve (74). The plurality of groups of the correction devices (7) form a correction frame. An electrically controlled telescopic rod (79) is provided in the middle of the correction frame. An adjusting rod (73) is provided on the outside of the correction frame. Connectors are provided on the lower sides of the electrically controlled telescopic rod (79) and the adjusting rod (73).

7. The concrete pouring process for cast-in-place frame structure in construction according to claim 6, characterized in that: A plurality of groups of the calibration devices (7) are connected end to end via a connecting sleeve (74) and are arranged in a frame shape. A deformation sensor is provided on the elastic frame (71).

8. The concrete pouring process for cast-in-place frame structure in construction according to claim 7, characterized in that: The method of using the correction device (7): a. Before or during pouring, when the formwork (1) is found to be deformed, a correction device (7) is installed, or the correction device (7) is assembled into a correction frame, and the correction frame structure is adjusted according to the deformation problem of the formwork (1); b. Rotate the adjusting rod (73), the screw plate (75) is connected to the template (1) by means of screws, the vacuum suction cup (77) is adsorbed on the surface of the template (1) by means of negative pressure, the clamp (78) is used to connect with the steel pipe (4), and ensure that the correction device (7) is reliably fixed. The correction device (7) can assist in reinforcing the template (1), improve the reliability of the template (1) support, improve the bearing capacity of the template (1), and avoid expansion of the template due to high pouring pressure; c. After the correction device (7) is installed, pressure is applied through the adjustment rod (73) or the electric control telescopic rod (79) to correct the deformation of the template (1) to ensure that the template (1) is flat and avoid affecting the pouring construction; d. If the template (1) is deformed and a gap appears in the template, resulting in leakage, a tensioner (76) is arranged between the adjustment rods (73) on the two templates (1) to apply a tensile force to bring the two templates (1) closer together and eliminate the gap; e. If the wooden formwork is installed for too long and cracks are caused by shrinkage, it is necessary to water it in advance to make it expand and close the seams. At the same time, use the correction device (7) to ensure that the cracks are tightly connected.

9. The concrete pouring process for cast-in-place frame structure in building construction according to claim 8, characterized in that: The correction device (7) is provided with a vibration device (8), which is used to assist the correction device (7). During the correction process of the template (1), the vibration device (8) promotes the flow of concrete through vibration, avoids continuous squeezing of the template (1), and reduces the correction pressure of the template (1). The vibration device (8) comprises a control rod (81), a spring (82), and a vibrator (83).

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