A hole type counterforce floor construction method

Abstract

This invention provides a construction method for perforated reaction flooring, belonging to the field of building construction technology. The method involves: pouring a perforated reaction flooring foundation layer; marking the edge lines of the perforated reaction flooring structure on the foundation layer; drawing the reinforcement distribution lines on the foundation layer and tying the reinforcement at the bottom of the foundation raft slab; erecting a wall reinforcement support frame; pouring concrete on the foundation raft slab; fixing the independent support system for the steel structure embedded parts; fixing the formwork support system; and using post-tensioning to lay unbonded prestressed tendons on the poured concrete. This method solves the problems of low precision in traditional civil engineering formwork, which makes it difficult to meet the design requirements for the installation precision of embedded parts, and the potential for positional conflicts between embedded parts and reinforcement / prestressed tendons during construction.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to a method for constructing a perforated reaction floor. Background Technology

[0002] With the rapid development of China's economy, connections between regions have become increasingly close, and existing road networks are no longer sufficient to meet the demands. To accelerate inter-regional connectivity, my country is vigorously developing new infrastructure—high-speed rail. Currently, the total length of high-speed rail in China exceeds 30,000 kilometers, with speeds reaching 350 kilometers per hour. The development of high-speed rail is inseparable from the development of bridge engineering, but the faster the high-speed rail, the higher the requirements for bridge foundations. Therefore, it is proposed to construct a multi-functional, high-precision perforated reaction pavement to study bridge piers with different structural forms.

[0003] Perforated reaction pavements enable dynamic monitoring of the microscopic, mesoscopic, and macroscopic structural changes of bridge pier foundations under dynamic loads, static loads, and combined dynamic and static loads. Therefore, perforated reaction pavements must possess absolute stiffness, strength, and stability. According to design requirements, this type of perforated reaction pavement must withstand a combined force of 2400 kN per square meter under all working conditions, with a single perforation capable of withstanding 800 kN.

[0004] The perforated reaction pavement consists of 674 steel pipe embedded parts and prestressed steel bars. The traditional construction method is single-hole pre-embedding, with the civil construction structure formwork as the carrier for construction. However, the civil construction formwork has low precision and cannot meet the design requirements for the installation precision of the embedded parts. At the same time, the embedded parts will conflict with the steel bars and prestressed tendons in position during the construction process, which will affect the construction. Summary of the Invention

[0005] In view of this, the present invention provides a method for constructing a perforated reaction floor, which can solve the problems of low precision of traditional civil engineering formwork, which makes it difficult to meet the design requirements for the installation precision of embedded parts, and the positional conflict between embedded parts and steel bars and prestressing tendons during the construction process, thus affecting the construction.

[0006] This invention is implemented as follows:

[0007] This invention provides a method for constructing a perforated reaction floor, comprising the following steps:

[0008] S10: The construction personnel construct a three-dimensional model of the perforated reaction floor according to the construction drawings of the perforated reaction floor, and pour the foundation layer of the perforated reaction floor at its construction location according to the three-dimensional model.

[0009] S20: After the perforated reaction floor foundation pad is poured, the straight perforated reaction floor structure edge line is popped out on the perforated reaction floor foundation pad for position calibration.

[0010] S30: Draw the steel reinforcement distribution line on the perforated reaction pavement foundation pad, tie the steel reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad and calibrate its position.

[0011] S40: Weld the embedded part to the steel bar for fixation;

[0012] S50: Erect a wall steel reinforcement support on the foundation pad of the perforated reaction floor;

[0013] S60: Pour concrete on the foundation raft of the perforated reaction floor foundation and cure it.

[0014] S70: Fix the steel structure embedded parts into the concrete using an independent support system;

[0015] S80: Fix the formwork support system on the wall steel reinforcement bracket and the independent support system of the steel structure embedded parts for support;

[0016] S90: The post-tensioning method is used to lay unbonded prestressed tendons on the poured concrete to complete the construction of the perforated reaction floor.

[0017] The technical effects of the perforated reaction floor construction method provided by this invention are as follows: Construction personnel construct a three-dimensional model of the perforated reaction floor based on the construction drawings; a foundation layer for the perforated reaction floor is poured at the construction location based on the three-dimensional model; after the foundation layer is poured, the edge lines of the perforated reaction floor structure are marked on the foundation layer for position calibration; reinforcement distribution lines are drawn on the foundation layer, and the reinforcement at the bottom of the foundation raft of the perforated reaction floor is tied and its position calibrated; embedded parts are welded and fixed to the reinforcement; and the perforated reaction floor structure is constructed using the perforated reaction floor construction method. A wall reinforcement support frame is erected on the foundation pad of the reaction pavement; concrete is poured and cured on the foundation raft slab of the perforated reaction pavement foundation pad; an independent support system for steel structure embedded parts is fixed on the poured concrete; a formwork support system is fixed on the wall reinforcement support frame and the independent support system for steel structure embedded parts; unbonded prestressing tendons are laid on the poured concrete using the post-tensioning method to complete the construction of the perforated reaction pavement; this method can solve the problems of low precision of traditional civil engineering formwork, which makes it difficult to meet the design requirements for the installation precision of embedded parts, and the positional conflict between embedded parts and steel bars and prestressing tendons during the construction process, affecting the construction.

[0018] Based on the above technical solution, the method for constructing a perforated reaction floor according to the present invention can be further improved as follows:

[0019] The specific steps of drawing the reinforcement distribution lines on the perforated reaction pavement foundation pad, tying the reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad, and calibrating its position include:

[0020] The first step is to draw the reinforcement distribution lines on the perforated reaction floor foundation pad.

[0021] The second step is to install steel reinforcement protective layer pads at the bottom of the foundation raft of the perforated reaction floor foundation layer.

[0022] The third step is to tie the reinforcing bars at the bottom of the foundation raft of the perforated reaction floor foundation layer;

[0023] The fourth step is to install the reinforcing bars of the stirrups, controlling the spacing between adjacent reinforcing bars to be 1m;

[0024] The fifth step is to mark the outline of the wall column on the reinforcing steel and perform position calibration.

[0025] Furthermore, the specific steps for welding and fixing the embedded part to the reinforcing bar include:

[0026] The first step is to prepare angle steel of the same size and width as the embedded part;

[0027] The second step is to clean the connection point between the angle steel and the embedded part, removing the oxidant and oil stains from the surface.

[0028] The third step is to preheat the welding position between the angle steel and the embedded part before welding to ensure that the angle steel and the embedded part are in close contact.

[0029] The fourth step is to perform post-heating on the welded area;

[0030] Fifth step, repeat the above steps to weld and fix the other side of the angle steel to the reinforcing bar;

[0031] The sixth step is to grind the welding positions of the reinforcing bars and the embedded parts.

[0032] Furthermore, the embedded part is a 20mm channel steel with a length of 300mm, and the angle steel has a height of 4mm.

[0033] Furthermore, the specific steps for erecting the wall reinforcement support on the perforated reaction pavement foundation include:

[0034] The first step is to fix the coupler-type scaffolding onto the perforated reaction floor foundation layer and fix the multi-row wall reinforcement frame.

[0035] The second step is to install a ground-level bracing at the bottom of the scaffold 200mm above the ground, and to install a zigzag scissor bracing between the inner and outer rows of uprights.

[0036] The third step is to install outriggers along the length of the wall, with a spacing of no more than 2.4m;

[0037] The fourth step is to fix the bottom of the outrigger to the embedded part;

[0038] The fifth step is to determine the bending and anchoring length of the wall reinforcement at the foundation and the top of the wall, and then place the wall column reinforcement inside the reinforcement cage.

[0039] The sixth step is to tie the local horizontal reinforcement bars. Two horizontal reinforcement bars are set at 1m intervals in the horizontal direction to prevent the wall reinforcement skeleton from deforming.

[0040] Step 7: The top of the wall reinforcement bars is temporarily tied and fixed to the upper horizontal bar of the wall reinforcement bar skeleton support frame using two binding wires.

[0041] Furthermore, the specific steps for pouring concrete and curing it on the foundation raft slab of the perforated reaction pavement foundation pad are as follows:

[0042] The first step is to pour concrete in layers and sections on the foundation raft of the perforated reaction floor foundation pad.

[0043] The second step is to ensure that the material is poured evenly and compacted during the pouring process.

[0044] The third step is to weld a water-stop steel plate at the construction joint;

[0045] The fourth step is to cover the concrete surface with burlap sacks and water it for 14-18 days to cure it.

[0046] Furthermore, the specific steps for pouring the perforated reaction pavement foundation layer at its construction location based on the three-dimensional model include:

[0047] The first step is for the construction personnel to determine the location of the segmentation points of the perforated reaction floor foundation pad based on the three-dimensional model, and then segment the three-dimensional model of the perforated reaction floor foundation pad to form a three-dimensional model segmentation network of the perforated reaction floor foundation pad.

[0048] The second step involves the construction personnel dividing the three-dimensional model of the perforated reaction floor foundation into local blocks based on the three-dimensional model segmentation network of the perforated reaction floor foundation.

[0049] The third step involves the construction workers processing the outer template of the cast-in-place reaction pavement base layer according to the size and surface structure of the local block, and then assembling the outer template to form the construction model of the cast-in-place reaction pavement base layer.

[0050] The fourth step involves the construction workers processing the concrete and then injecting the processed concrete into the construction model of the cast-in-place reaction floor foundation.

[0051] Fifth, after the concrete has solidified, the construction workers remove the construction model of the cast-in-place reaction floor foundation and cure the concrete surface.

[0052] Furthermore, the specific steps by which the construction personnel determine the location of the segmentation points of the porous reaction floor foundation pad based on the three-dimensional model, and segment the three-dimensional model of the porous reaction floor foundation pad to form a three-dimensional model segmentation network of the porous reaction floor foundation pad include:

[0053] The first step is for the construction personnel to determine the given parameters;

[0054] The second step involves the construction personnel determining the segmentation points of the perforated reaction floor foundation cushion layer based on the plan views and dimensional data of each plane of the three-dimensional model.

[0055] The third step involves the construction workers using nonlinear least squares fitting to form a three-dimensional model segmentation network for the porous reaction floor foundation pad layer by dividing the segmentation points on the same plane.

[0056] Furthermore, the specific steps by which the construction personnel form a three-dimensional model segmentation network of the perforated reaction floor foundation cushion layer by using nonlinear least squares fitting of the segmentation points on the same plane include:

[0057] The first step involved the construction workers using MATLAB software to process the segmentation points on the same plane, including removing noise points, smoothing data, and removing outliers.

[0058] The second step involves the construction personnel selecting a NURBS curve fitting model to generate a three-dimensional model segmentation network for the porous reaction floor foundation layer.

[0059] The third step involves optimizing the segmentation network of the generated three-dimensional model of the perforated reaction floor foundation.

[0060] The specific steps for determining the given parameter include:

[0061] The first step is for the construction workers to input the dimensions of the 3D model into an array;

[0062] The second step involves the construction workers using a variable to store the current minimum dimension data.

[0063] The third step is for the construction workers to iterate through all the dimension data starting from the first dimension data and compare the current dimension data with the minimum value.

[0064] Fourth step: If the current dimension data is less than the minimum value, the construction personnel will update the minimum value; if the current dimension data is greater than the minimum value, the minimum value will be updated to the current data.

[0065] Fifth, the construction workers repeat the above process to determine the given parameters.

[0066] Furthermore, the specific steps for the construction personnel to construct a three-dimensional model of the perforated reaction floor based on the construction drawings of the perforated reaction floor include:

[0067] The first step is for the construction personnel to determine the scope of the modeling based on the described perforated reaction floor, determine the modeling parameters, and archive and organize the data information.

[0068] The second step is for the construction workers to input the data into the OpenBuildlings Designer software to generate a three-dimensional model of the perforated reaction floor.

[0069] The third step involves the construction personnel adding construction information based on the three-dimensional model of the perforated reaction floor according to construction requirements. This construction information includes the main components, construction procedures, time schedule, and material information.

[0070] The fourth step involves construction personnel using OpenBuildlings Designer software to analyze and calculate the construction information, obtaining data on collision detection, material usage calculation, cost estimation, and construction performance analysis.

[0071] The fifth step involves the construction team optimizing the three-dimensional model of the perforated reaction floor.

[0072] Compared with existing technologies, the beneficial effects of the perforated reaction floor construction method provided by this invention are as follows: Construction personnel construct a three-dimensional model of the perforated reaction floor based on the construction drawings; the foundation pad of the perforated reaction floor is poured at the construction location according to the three-dimensional model; after the foundation pad is poured, the edge line of the perforated reaction floor structure is marked on the foundation pad for position calibration; the reinforcement distribution line is drawn on the foundation pad, and the reinforcement at the bottom of the foundation raft of the perforated reaction floor is tied and its position calibrated; the embedded parts are welded and fixed to the reinforcement; A wall reinforcement support frame is erected on the foundation pad of the perforated reaction pavement; concrete is poured and cured on the foundation raft slab of the perforated reaction pavement foundation pad; an independent support system for steel structure embedded parts is fixed on the poured concrete; a formwork support system is fixed on the wall reinforcement support frame and the independent support system for steel structure embedded parts; unbonded prestressing tendons are laid on the poured concrete using the post-tensioning method to complete the construction of the perforated reaction pavement; this method can solve the problems of low precision of traditional civil engineering formwork, which makes it difficult to meet the design requirements for the installation precision of embedded parts, and the positional conflict between embedded parts and steel bars and prestressing tendons during the construction process, affecting the construction. Attached Figure Description

[0073] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0074] Figure 1 This describes the operational process of a perforated reaction floor construction method. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0076] like Figure 1 The diagram shows an operation flowchart of a perforated reaction floor construction method provided by the present invention, which includes the following steps:

[0077] S10: Construction personnel construct a three-dimensional model of the perforated reaction floor according to the construction drawings of the perforated reaction floor, and pour the foundation layer of the perforated reaction floor at its construction location according to the three-dimensional model.

[0078] S20: After the foundation pad of the perforated reaction floor is poured, the edge line of the straight perforated reaction floor structure is marked on the foundation pad for position calibration.

[0079] S30: Draw the steel reinforcement distribution line on the perforated reaction pavement foundation pad, tie the steel reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad and calibrate its position.

[0080] S40: Weld and fix the embedded parts to the reinforcing bars;

[0081] S50: Erect a wall steel reinforcement support on the foundation pad of the perforated reaction pavement;

[0082] S60: Concrete is poured and cured on the foundation raft of the perforated reaction pavement foundation pad.

[0083] S70: Fix the steel structure embedded parts into the concrete using an independent support system;

[0084] S80: The formwork support system is fixed on the independent support system of the wall reinforcement bracket and steel structure embedded parts for support;

[0085] S90: The post-tensioning method is used to lay unbonded prestressed tendons on the poured concrete to complete the construction of the perforated reaction floor.

[0086] During use, construction personnel construct a 3D model of the perforated reaction floor according to the construction drawings. Based on the 3D model, the foundation pad of the perforated reaction floor is poured at its construction location. After the foundation pad is poured, the edge lines of the perforated reaction floor structure are marked on the foundation pad for position calibration. The reinforcement distribution lines are drawn on the foundation pad, and the reinforcement at the bottom of the foundation raft is tied and its position calibrated. The embedded parts are welded and fixed to the reinforcement. A wall reinforcement support is erected on the foundation pad. Concrete is poured on the foundation raft and cured. The independent support system of the steel embedded parts is fixed on the poured concrete. The formwork support system is fixed on the wall reinforcement support and the independent support system of the steel embedded parts for support. The unbonded prestressed tendons are laid on the poured concrete using the post-tensioning method, completing the construction of the perforated reaction floor.

[0087] In the aforementioned technical solution, the specific steps for drawing the reinforcement distribution lines on the perforated reaction pavement foundation pad, tying the reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad, and calibrating its position include:

[0088] The first step is to draw the reinforcement distribution lines on the perforated reaction floor foundation pad.

[0089] The second step is to install steel reinforcement protective layer pads at the bottom of the foundation raft of the perforated reaction floor foundation layer.

[0090] The third step is to tie the reinforcing bars at the bottom of the foundation raft of the perforated reaction floor foundation layer;

[0091] The fourth step is to install the reinforcing bars for the stirrups, controlling the spacing between adjacent reinforcing bars to be 1m.

[0092] The fifth step is to mark the outline of the wall column on the reinforcing steel and then calibrate its position.

[0093] Furthermore, in the above technical solution, the specific steps for welding and fixing the embedded parts to the reinforcing bars include:

[0094] The first step is to prepare angle steel of the same size and width as the embedded part;

[0095] The second step is to clean the connection between the angle steel and the embedded parts thoroughly to remove surface oxidants and oil stains.

[0096] The third step is to preheat the welding position between the angle steel and the embedded part before welding to ensure that the angle steel and the embedded part are in close contact.

[0097] The fourth step is to perform post-heating on the welded area;

[0098] Fifth, repeat the above steps to weld and fix the other side of the angle steel to the reinforcing bar;

[0099] The sixth step is to grind the welded areas of the reinforcing bars and embedded parts.

[0100] Furthermore, in the above technical solution, the embedded part is a 20mm channel steel with a length of 300mm, and the angle steel has a height of 4mm.

[0101] Furthermore, in the above technical solution, the specific steps for erecting the wall reinforcement support on the perforated reaction pavement foundation include:

[0102] The first step is to fix the coupler-type scaffolding to the perforated reaction floor foundation and fix the multi-row wall reinforcement frame.

[0103] The second step is to install a ground-level bracing at the bottom of the scaffolding 200mm from the ground, and to install zigzag scissor bracing between the inner and outer rows of uprights.

[0104] The third step is to install outriggers along the length of the wall, with a spacing of no more than 2.4m;

[0105] The fourth step is to fix the bottom of the outrigger to the embedded part;

[0106] The fifth step is to determine the bending and anchoring length of the wall reinforcement at the foundation and top of the wall, and to place the wall column reinforcement inside the reinforcement cage.

[0107] The sixth step is to tie the local horizontal reinforcement bars. Two horizontal reinforcement bars are set at 1m intervals in the horizontal direction to prevent deformation of the wall reinforcement skeleton.

[0108] Step 7: The top of the wall reinforcement bars is temporarily tied and fixed to the upper horizontal bar of the wall reinforcement bar skeleton support frame using two binding wires.

[0109] Furthermore, in the above technical solution, the specific steps for pouring concrete and curing it on the foundation raft slab of the perforated reaction pavement foundation pad are as follows:

[0110] The first step is to pour concrete in layers and sections on the foundation raft of the perforated reaction floor foundation.

[0111] The second step is to ensure that the material is poured evenly and compacted during the pouring process.

[0112] The third step is to weld a water-stop steel plate at the construction joint;

[0113] The fourth step is to cover the concrete surface with burlap sacks and water it for 14-18 days to cure it.

[0114] Furthermore, in the above technical solution, the specific steps for pouring the perforated reaction pavement foundation layer at its construction location based on the three-dimensional model include:

[0115] The first step is for the construction personnel to determine the location of the segmentation points of the perforated reaction floor foundation pad based on the 3D model, and then segment the 3D model of the perforated reaction floor foundation pad to form a 3D model segmentation network of the perforated reaction floor foundation pad.

[0116] The second step involves the construction workers dividing the 3D model of the perforated reaction floor foundation into local blocks based on the 3D model segmentation network of the perforated reaction floor foundation.

[0117] The third step involves the construction workers processing the outer templates for the cast-in-place reaction pavement base layer according to the size and surface structure of the local block, and then assembling the outer templates to form a construction model for the cast-in-place reaction pavement base layer.

[0118] The fourth step involves the construction workers treating the concrete and then injecting the treated concrete into the construction model for the perforated reaction floor foundation.

[0119] The fifth step involves the construction workers removing the construction model for the poured perforated reaction floor foundation after the concrete has solidified, and then curing the concrete surface.

[0120] Furthermore, in the above technical solution, the specific steps for construction personnel to determine the location of the segmentation points of the porous reaction floor foundation pad based on the three-dimensional model, and to segment the three-dimensional model of the porous reaction floor foundation pad to form a three-dimensional model segmentation network of the porous reaction floor foundation pad include:

[0121] The first step is for the construction personnel to determine the given parameters;

[0122] The second step involves the construction team determining the segmentation points of the perforated reaction floor foundation cushion layer based on the plan views and dimensional data of each plane in the 3D model.

[0123] The third step involves the construction team using nonlinear least squares fitting to create a three-dimensional model segmentation network for the perforated reaction floor foundation layer by dividing the points on the same plane.

[0124] Furthermore, in the above technical solution, the specific steps by which construction personnel form a three-dimensional model segmentation network of the perforated reaction floor foundation cushion layer by using nonlinear least squares fitting of the segmentation points on the same plane include:

[0125] The first step was for the construction workers to use MATLAB software to process the division points on the same plane, including removing noise points, smoothing data, and removing outliers.

[0126] The second step involves the construction team selecting a NURBS curve fitting model to generate a three-dimensional model segmentation network for the porous reaction floor foundation.

[0127] The third step involves optimizing the segmentation network of the generated 3D model of the perforated reaction floor foundation.

[0128] The specific steps by which construction workers create a 3D model segmentation network for the porous reaction floor foundation pad by using nonlinear least squares fitting of the segmentation points on the same plane include:

[0129] The first step was for the construction workers to use MATLAB software to process the division points on the same plane, including removing noise points, smoothing data, and removing outliers.

[0130] The second step involves the construction team selecting a NURBS curve fitting model to generate a three-dimensional model segmentation network for the porous reaction floor foundation.

[0131] The third step involves optimizing the segmentation network of the generated 3D model of the perforated reaction floor foundation.

[0132] Furthermore, in the above technical solution, the specific steps for construction personnel to construct a three-dimensional model of the perforated reaction floor based on the construction drawings of the perforated reaction floor include:

[0133] The first step is for the construction personnel to determine the scope of the modeling based on the perforated reaction floor, determine the modeling parameters, and archive and organize the data information.

[0134] The second step is for the construction workers to input the data into the OpenBuildlings Designer software to generate a three-dimensional model of the perforated reaction floor.

[0135] The third step involves the construction team adding construction information based on the three-dimensional model of the perforated reaction floor, according to the construction requirements. This information includes the main components, construction procedures, time schedule, and material information.

[0136] The fourth step involves construction personnel using OpenBuildlings Designer software to analyze and calculate construction information, obtaining data on collision detection, material usage calculation, cost estimation, and construction performance analysis.

[0137] The fifth step involves the construction team optimizing the 3D model of the perforated reaction floor.

[0138] Example 1:

[0139] After the foundation pad of the perforated reaction pavement is poured, the edge lines of the perforated reaction pavement structure and the outlines of the walls and columns are marked on the pad. After the foundation reinforcement is tied, the outlines of the walls and columns are marked again on the foundation reinforcement. After on-site verification, the next step is carried out. Before tying the foundation reinforcement, the reinforcement distribution lines should be drawn on the pad concrete, and then the bottom reinforcement of the foundation raft slab is tied. During the foundation reinforcement tying process, attention should be paid to adding reinforcement protective layer spacers. When installing the stirrup reinforcement, the spacing should be controlled at 1m. After checking the upper elevation of the stirrup reinforcement and confirming that it is correct, the upper reinforcement of the raft slab is installed. The thickness of the foundation slab is 800mm. To ensure the stability of the reinforcement cage, appropriate diagonal reinforcement bracing should be set, mainly around the foundation raft slab. The embedded parts of the steel structure embedded parts independent support system are ordinary 20mm channel steel, 300mm long. Before the foundation slab concrete is poured, they are welded to the top reinforcement at a spacing of 2500mm. Corner welding is used, and the weld height is 4mm. The construction quality requirements for perforated reaction concrete structures are high. To enhance the integrity of the reinforcing steel skeleton and avoid weak points, the wall and column reinforcing bars are inserted to the top in one go, with no joints in the vertical reinforcing bars. However, the temporary fixing, elevation, and spacing control of the inserted bars for the vertical reinforcing bars require a specialized wall reinforcement support frame. Before insertion, double-row scaffolding is set up to fix the multi-row wall reinforcement skeleton according to the distribution of multiple rows of wall reinforcement, preventing it from tilting or deforming. Coupler-type scaffolding is used, with steel pipe specifications of Ф48.3mm×3.6mm. The span of the supporting scaffolding is 1.2m, the step distance is 1.5m, and the row spacing is 1.05m. A ground-level bracing is installed 200mm above the ground at the bottom of the supporting scaffolding, and a zigzag scissor bracing is installed between the inner and outer rows of uprights. Outriggers are installed along the length of the wall, with a spacing not exceeding 2.4m. The bottom of the outriggers should be reliably connected to the pre-embedded reinforcing bars during foundation construction. When cutting wall reinforcement bars, the bending and anchoring length of the wall reinforcement bars at the foundation and top of the wall should be fully considered to ensure accurate cutting in one go. When inserting wall reinforcement bars, local horizontal bars should be tied. Two horizontal bars should be installed at 1m intervals in the horizontal direction to prevent deformation of the wall reinforcement skeleton. The top of the wall reinforcement bars should be temporarily tied to the upper horizontal crossbar of the wall reinforcement skeleton support frame with two binding wires to prevent displacement. The perforated reaction pavement is a concrete structure using a raft foundation. In addition to meeting the bearing capacity requirements, the foundation of the perforated reaction pavement must also meet the impermeability requirements. Therefore, the quality control of the concrete pouring and curing of the perforated reaction pavement foundation is particularly important. The raft foundation concrete is poured in layers and sections, from west to east. The first layer is 500mm thick, and the second layer is 400mm thick. During pouring, the material should be evenly distributed and vibrated to ensure compaction. To prevent leakage at construction joints, water-stop steel plates are welded at the construction joints. After the raft foundation is poured, the concrete should be cured promptly. Curing of the foundation raft concrete should be done by covering it with burlap sacks and watering, or by water retention. In addition to keeping the surface moist, attention should also be paid to temperature control.The curing time for the concrete foundation of the perforated reaction pavement should not be less than 14 days. The vertical supports for the independent steel structure embedded parts use ordinary 12mm I-beams, connected to the embedded parts in the foundation slab. To ensure the stability of the independent support system, the welds must be continuous and full, with no missed welds. The horizontal alignment of this independent support system uses ordinary 10mm channel steel connected to the upright I-beams. To ensure that the support system meets the embedded elevation requirements, the upright I-beams must be adjusted to ensure that the elevation deviation is no greater than ±3mm. The crossbeams and I-beams are welded together, and the welds must be full welds, not electric welding. This prestressing method uses post-tensioned, non-bonded prestressing tendons. Compared with traditional prestressing tendons, grouting is not required after tensioning. Prestressing installation is carried out in two stages: the prestressing tendons are laid after the bottom reinforcement is tied by the civil engineering work. Stirrups are used as supports for the prestressing tendons to ensure accurate embedding of the prestressing tendons according to the design requirements.

[0140] Example 2:

[0141] Concrete is poured in layers and sections on the foundation raft of the perforated reaction pavement base layer; during the pouring process, the material is evenly distributed and compacted by vibration; water-stop steel plates are welded at the construction joints; the surface of the concrete is cured by covering it with burlap sacks and watering it, and the curing time is 14 days.

[0142] Example 3:

[0143] Concrete is poured in layers and sections on the foundation raft of the perforated reaction pavement base layer; during the pouring process, the material is evenly distributed and compacted by vibration; water-stop steel plates are welded at the construction joints; the surface of the concrete is cured by covering it with burlap sacks and watering it, and the curing time is 18 days.

[0144] Specifically, the principle of this invention is as follows: Construction personnel construct a three-dimensional model of the perforated reaction floor based on the construction drawings; based on the three-dimensional model, a foundation layer for the perforated reaction floor is poured at its construction location; after the foundation layer is poured, the edge lines of the perforated reaction floor structure are marked on the foundation layer for position calibration; reinforcement distribution lines are drawn on the foundation layer, and the reinforcement bars at the bottom of the foundation raft of the perforated reaction floor are tied. The process involves: aligning the positions; welding and fixing the embedded parts to the reinforcing bars; erecting a wall reinforcement support on the foundation pad of the perforated reaction floor; pouring concrete onto the foundation raft of the perforated reaction floor and curing it; fixing the independent support system for the embedded steel structure on the poured concrete; fixing the formwork support system on the wall reinforcement support and the independent support system for the embedded steel structure; and using the post-tensioning method to lay the unbonded prestressed tendons on the poured concrete to complete the construction of the perforated reaction floor.

Claims

1. A method of constructing a hole-type reaction floor, characterized by, Includes the following steps: S10: The construction personnel construct a three-dimensional model of the perforated reaction floor according to the construction drawings of the perforated reaction floor, and pour the foundation layer of the perforated reaction floor at its construction location according to the three-dimensional model. S20: After the perforated reaction floor foundation pad is poured, the straight perforated reaction floor structure edge line is popped out on the perforated reaction floor foundation pad for position calibration. S30: Draw the steel reinforcement distribution line on the perforated reaction pavement foundation pad, tie the steel reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad and calibrate its position. S40: Weld the embedded part to the steel bar for fixation; S50: Erect a wall steel reinforcement support on the foundation pad of the perforated reaction floor; S60: Concrete is poured and cured on the foundation raft of the perforated reaction floor foundation pad. S70: Fix the independent support system for the steel structure embedded parts on the poured concrete; S80: Fix the formwork support system on the wall steel reinforcement bracket and the independent support system of the steel structure embedded parts for support; S90: The post-tensioning method is used to lay unbonded prestressed tendons on the poured concrete to complete the construction of the perforated reaction floor. The specific steps for pouring the perforated reaction pavement foundation layer at the construction location based on the three-dimensional model include: The first step is for the construction personnel to determine the location of the segmentation points of the perforated reaction floor foundation pad based on the three-dimensional model, and then segment the three-dimensional model of the perforated reaction floor foundation pad to form a three-dimensional model segmentation network of the perforated reaction floor foundation pad. The second step involves the construction personnel dividing the three-dimensional model of the perforated reaction floor foundation into local blocks based on the three-dimensional model segmentation network of the perforated reaction floor foundation. The third step involves the construction workers processing the outer template of the cast-in-place reaction pavement base layer according to the size and surface structure of the local block, and then assembling the outer template to form the construction model of the cast-in-place reaction pavement base layer. The fourth step involves the construction workers processing the concrete and then injecting the processed concrete into the construction model of the cast-in-place reaction floor foundation. Fifth step: After the concrete has solidified, the construction workers remove the construction model of the cast-in-place reaction floor foundation and cure the concrete surface. The specific steps by which the construction personnel determine the location of the segmentation points of the porous reaction pavement foundation pad based on the three-dimensional model, and segment the three-dimensional model of the porous reaction pavement foundation pad to form a three-dimensional model segmentation network of the porous reaction pavement foundation pad include: The first step is for the construction personnel to determine the given parameters; The second step involves the construction personnel determining the segmentation points of the perforated reaction floor foundation cushion layer based on the plan views and dimensional data of each plane of the three-dimensional model. The third step involves the construction workers using nonlinear least squares fitting to form a three-dimensional model segmentation network for the perforated reaction floor foundation pad layer by dividing the points on the same plane. The specific steps taken by the construction personnel to construct the three-dimensional model of the perforated reaction floor based on the construction drawings of the perforated reaction floor include: The first step is for the construction personnel to determine the scope of the modeling based on the described perforated reaction floor, determine the modeling parameters, and archive and organize the data information. The second step is for the construction workers to input the data into the OpenBuildlings Designer software to generate a three-dimensional model of the perforated reaction floor. The third step involves the construction personnel adding construction information based on the three-dimensional model of the perforated reaction floor according to construction requirements. This construction information includes the main components, construction procedures, time schedule, and material information. The fourth step involves construction personnel using OpenBuildlings Designer software to analyze and calculate the construction information, obtaining data on collision detection, material usage calculation, cost estimation, and construction performance analysis. The fifth step involves the construction team optimizing the three-dimensional model of the perforated reaction floor.

2. The method of claim 1, wherein, The specific steps of drawing the reinforcement distribution lines on the perforated reaction pavement foundation pad, tying the reinforcement at the bottom of the foundation raft of the perforated reaction pavement foundation pad, and calibrating its position include: The first step is to draw the reinforcement distribution lines on the perforated reaction floor foundation pad. The second step is to install steel reinforcement protective layer pads at the bottom of the foundation raft of the perforated reaction floor foundation layer. The third step is to tie the reinforcing bars at the bottom of the foundation raft of the perforated reaction floor foundation layer; The fourth step is to install the reinforcing bars of the stirrups, controlling the spacing between adjacent reinforcing bars to be 1m; The fifth step is to mark the outline of the wall column on the reinforcing steel and perform position calibration.

3. A method of constructing a hole-type reaction floor according to claim 2, wherein The specific steps for welding and fixing the embedded part to the steel bar include: The first step is to prepare angle steel of the same size and width as the embedded part; The second step is to clean the connection position between the angle steel and the embedded part, removing the oxidant and oil stains from the surface. The third step is to preheat the welding position between the angle steel and the embedded part before welding to ensure that the angle steel and the embedded part are in close contact. The fourth step is to perform post-heating on the welded area; Fifth, repeat the above steps to weld and fix the other side of the angle steel to the reinforcing bar; The sixth step is to grind the welding positions of the reinforcing bars and the embedded parts.

4. The method of claim 3, wherein, The embedded part is a 20mm channel steel with a length of 300mm, and the angle steel has a height of 4mm.

5. The method of claim 4, wherein, The specific steps for erecting the wall reinforcement support on the perforated reaction pavement foundation include: The first step is to fix the coupler-type scaffolding onto the perforated reaction floor foundation layer and fix the multi-row wall reinforcement frame. The second step is to install a ground-level bracing at the bottom of the scaffold 200mm above the ground, and to install a zigzag scissor bracing between the inner and outer rows of uprights. The third step is to install outriggers along the length of the wall, with a spacing of no more than 2.4m; The fourth step is to fix the bottom of the outrigger to the embedded part; The fifth step is to determine the bending and anchoring length of the wall reinforcement at the foundation and top of the wall, and then place the wall column reinforcement inside the reinforcement cage. The sixth step is to tie the local horizontal reinforcement bars. Two horizontal reinforcement bars are set at 1m intervals in the horizontal direction to prevent the wall reinforcement skeleton from deforming. Step 7: The top of the wall reinforcement bars is temporarily tied and fixed to the upper horizontal bar of the wall reinforcement bar skeleton support frame using two binding wires.

6. A method of constructing a hole-type reaction floor according to claim 5, wherein The specific steps for pouring concrete and curing it on the foundation raft slab of the perforated reaction pavement foundation pad are as follows: The first step is to pour concrete in layers and sections on the foundation raft of the perforated reaction floor foundation pad. The second step is to ensure that the material is poured evenly and compacted during the pouring process. The third step is to weld a water-stop steel plate at the construction joint; The fourth step is to cover the concrete surface with burlap sacks and water it for 14-18 days to cure it.

7. A method of constructing a hole-type reaction floor according to claim 6, wherein The specific steps by which the construction personnel form a three-dimensional model segmentation network of the porous reaction floor foundation cushion layer by using nonlinear least squares fitting of the segmentation points on the same plane include: The first step involved the construction workers using MATLAB software to process the segmentation points on the same plane, including removing noise points, smoothing data, and removing outliers. The second step involves the construction personnel selecting a NURBS curve fitting model to generate a three-dimensional model segmentation network for the porous reaction floor foundation layer. The third step involves optimizing the segmentation network of the generated three-dimensional model of the perforated reaction floor foundation.

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