Pier column formwork climbing form precision control method

Abstract

The application provides a pier column formwork climbing formwork precision control method, the formwork is provided with a leveling unit and a monitoring unit, the leveling unit comprises a tube level, a circular level and a leveling actuator, and the method comprises the following steps: S100: positioning the formwork of the first layer, completing coarse leveling by adjusting the leveling actuator to make the bubble of the circular level centered, and completing fine leveling by making the bubble of the tube level centered; using the monitoring unit to collect the inclination of the formwork, and recording the inclination of the formwork, the state of the tube level and the state of the circular level to the monitoring unit, combining to obtain a zero reference and storing the zero reference into the monitoring unit, mechanically locking the formwork, and pouring the first layer of concrete; S200: unlocking the leveling actuator, after adjusting the formwork to climb to the target layer, taking the zero reference as a target value, driving all the leveling actuators to adjust the posture of the formwork, and pouring the target layer of concrete.

Description

Technical Field

[0001] This invention relates to the field of pier construction technology, and in particular to a method for controlling the accuracy of climbing formwork for piers. Background Technology

[0002] In bridge and tall structure construction, piers are the main load-bearing and force-transmitting components, and their construction accuracy directly affects their safety and durability. Currently, the climbing formwork method is widely used in pier construction.

[0003] The verticality and positioning of existing formwork mainly rely on manual monitoring and adjustment using external measuring instruments such as total stations. The specific process typically involves: initial positioning using a total station during the installation of the first layer of formwork, with manual leveling; after each subsequent layer of formwork is raised, the total station is set up again to measure the three-dimensional coordinates of pre-set targets on the formwork. This process is time-consuming and labor-intensive, severely impacting construction progress. Since each adjustment is based on the already poured structure of the previous construction layer, it may contain minor construction errors, resulting in relative adjustments. This layer-by-layer transmission of errors means that initial installation errors of the formwork, systematic errors of the raising mechanism itself, and human errors during adjustment cannot be eliminated. Instead, these errors are continuously amplified and accumulated in subsequent processes, causing the overall verticality deviation of the pier to exceed the allowable range, forming a cumulative error that is difficult to correct. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a method for controlling the climbing formwork accuracy of pier column templates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for controlling the climbing accuracy of pier column formwork, wherein the formwork is equipped with a leveling unit and a monitoring unit. The leveling unit includes a tubular level, a circular level, and a leveling actuator. The method includes: S100: positioning the formwork for the first layer, adjusting the leveling actuator to center the bubble of the circular level to complete rough leveling, and centering the bubble of the tubular level to complete fine leveling; using the monitoring unit to collect the formwork tilt angle and recording the formwork tilt angle, the state of the tubular level, and the state of the circular level to the monitoring unit, combining them to obtain a zero-position reference and storing it in the monitoring unit, mechanically locking the formwork, and pouring the first layer of concrete; S200: releasing the leveling actuator from locking, adjusting the formwork to climb to the target layer, using the zero-position reference as the target value, driving all the leveling actuators to adjust the posture of the formwork, and then pouring the target layer of concrete.

[0006] Optionally, the monitoring unit includes a tilt sensor for acquiring the tilt angle of the template, an inertial measurement unit for acquiring attitude data, and a data acquisition unit. The data acquisition unit is signal-connected to the tilt sensor and the inertial measurement unit and receives and stores the zero-position reference.

[0007] Optionally, S300: Before the concrete in this layer solidifies, the monitoring unit is used to collect and store the posture data and working conditions of the template.

[0008] Optionally, in step S300, the attitude data includes: the template tilt angle at the final attitude of the template obtained by the monitoring unit after the concrete of this layer is poured and solidified, the wind vibration data collected by the inertial measurement unit, the reading of the tube level and the reading of the circular level.

[0009] Optionally, S400: The attitude data is transmitted to the processor, the deviation data between the attitude data and the zero-position reference is calculated, and the attitude data is compared and summarized with the attitude data of the same working conditions recorded in historical construction to identify the attitude offset pattern in the construction working condition.

[0010] Optionally, for the identified attitude offset pattern, in the subsequent adjustment process of the same working condition S200 step, a reverse pre-adjustment command is applied to the leveling unit in advance to counteract the expected attitude offset.

[0011] Optionally, the readings of the tubular level and the circular level are manually collected and recorded to the monitoring unit by the operator after visual interpretation, or are automatically collected and transmitted to the monitoring unit by an electronic digital display level.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This application provides a method for controlling the accuracy of climbing formwork for pier columns. It simplifies the cumbersome process of requiring external total station measurements and manual calculations and adjustments for each layer by using tubular and circular levels installed on the formwork. This is done by standardizing the process into a single calibration for the first layer and automatic restoration of the benchmark for subsequent layers. This improves construction efficiency and reduces reliance on professional surveyors and equipment. It also eliminates the accumulation of random errors caused by independent measurements and adjustments between layers, ensuring the overall verticality and alignment accuracy of the high pier columns, and guaranteeing the consistency and reliability of construction quality. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0014] Legend: Figure 1 This is a schematic diagram of the process of the present invention; Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] It will be understood that although the terms “first,” “second,” “third,” “fourth,” etc., may be used here to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0017] Combination Figure 1 As shown in the figure, an embodiment of the present invention provides a method for controlling the climbing accuracy of pier column formwork. The formwork is equipped with a leveling unit and a monitoring unit. The leveling unit includes a tubular level, a circular level, and a leveling actuator. The method includes: S100: Position the template for the first layer. Adjust the leveling actuator to center the bubble in the circular level for rough leveling and the bubble in the tubular level for fine leveling. Use the monitoring unit to collect the template tilt angle and record the template tilt angle, tubular level status, and circular level status to the monitoring unit. Combine these to obtain the zero-point reference and store it in the monitoring unit. Mechanically lock the template and proceed with the first layer concrete pouring.

[0018] The operator observes the bubble positions of the circular and tubular levels installed on the template using a monitoring unit. Rough and fine leveling are achieved by controlling the extension and retraction of each leveling actuator. The template is then mechanically locked using strength bolts and nuts. The leveling actuators include electric jacks and support rods. For example, if the bubble is seen to be off-left, the operator manually extends the right jack or retracts the left jack until the bubble is centered. When there is a gap between the template and the pier, the support rod is used to reduce the gap. After adjustment, the operator collects and records the current template tilt angle data through the monitoring unit, correlates the data, and defines the physical level state (double bubble centered) and the current tilt angle data as a unique zero-point reference, storing it in the monitoring unit.

[0019] S200: Release the leveling actuator lock, adjust the template to climb to the target layer, use the zero-position reference as the target value, drive all the leveling actuators to adjust the template posture, and then pour the target layer concrete.

[0020] After the first-floor concrete reaches the specified strength, the mechanical locks on the formwork are first released, and then the formwork is driven to synchronously climb to the target floor. Once in place, the system uses the stored zero-position benchmark as the target, automatically compares the real-time tilt angle data, and drives the leveling actuator for correction. After double confirmation and adjustment of the tubular and circular levels to ensure compliance, the formwork is mechanically locked again, and the rebar tying and concrete pouring operations for that floor can begin.

[0021] S300: Before the concrete in this layer solidifies, the monitoring unit is used to collect and store the posture data and working conditions of the template.

[0022] Throughout the entire process from concrete pouring to initial setting, the monitoring unit automatically enters high-frequency recording. The system collects attitude data, which includes tilt data generated by the tilt sensor, wind vibration and dynamic data captured by the inertial measurement unit, and simultaneously records the readings or images of two levels as physical verification. It also records construction conditions such as the floor level, pouring volume, time, and environmental parameters.

[0023] S400: The attitude data is transmitted to the processor, the deviation between the attitude data and the zero-position reference is calculated, and the deviation is compared and summarized with the attitude data of similar working conditions recorded in historical construction to identify the attitude offset pattern in this construction condition. For the identified attitude offset pattern, in the subsequent adjustment process of step S200 under the same working condition, a reverse pre-adjustment command is applied to the leveling unit in advance to counteract the expected attitude offset.

[0024] After the attitude data is transmitted and preprocessed, the processor calculates the final attitude deviation of the template using the zero-position reference. By comparing the current deviation data with data from similar working conditions in the historical database and using machine learning algorithms based on cluster analysis and regression learning, the system identifies the attitude offset pattern of the construction condition and provides a reverse pre-adjustment command during adjustment.

[0025] This application provides a method for controlling the accuracy of climbing formwork for pier columns. It simplifies the cumbersome process of requiring external total station measurements and manual calculations and adjustments for each layer by using tubular and circular levels installed on the formwork. This is done by standardizing the process into a single calibration for the first layer and automatic restoration of the benchmark for subsequent layers. This improves construction efficiency and reduces reliance on professional surveyors and equipment. It also eliminates the accumulation of random errors caused by independent measurements and adjustments between layers, ensuring the overall verticality and alignment accuracy of the high pier columns, and guaranteeing the consistency and reliability of construction quality.

[0026] In some possible implementations, the monitoring unit includes a tilt sensor for acquiring the tilt angle of the template, an inertial measurement unit (IMU) for acquiring attitude data, and a data acquisition unit. The data acquisition unit is signal-connected to the tilt sensor and the IMU, receiving and storing the zero-position reference. The tilt sensor is deployed at preset monitoring points on the template to acquire the lateral and longitudinal tilt angle data of the template in real time. The IMU is located at the core of the template and is used to acquire full-dimensional attitude data of the template, such as three-dimensional angular velocity, acceleration, and spatial attitude angle. The data acquisition unit has a built-in communication module and a storage module. Its communication terminal establishes a bidirectional signal connection with the tilt sensor and the IMU via wired or wireless means. When the template is leveled to the design reference position, the data acquisition unit synchronously receives the initial tilt angle reading of the tilt sensor and the initial attitude data of the IMU, and stores them as the zero-position reference information for template monitoring in the built-in storage module, providing a reference for subsequent comparative analysis of template attitude deviations.

[0027] In some possible implementations, the readings of the tubular level and the circular level are visually interpreted by the operator and recorded in the data acquisition unit of the monitoring unit, or an electronic digital level is used to automatically acquire and transmit the data to the data acquisition unit. In manual acquisition mode, the data acquisition unit is equipped with an interactive touch screen. After the operator visually confirms that the bubble is centered, they manually confirm it in the data acquisition unit, which then associates and stores the data from the tilt sensor and the inertial measurement unit at the current moment. In automatic acquisition, an electronic level integrating angle sensing and communication modules is used, which can automatically detect the bubble position and convert it into a digital reading, which is then transmitted to the data acquisition unit in real time via wired or wireless means.

[0028] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. All should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0029] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A method for controlling the accuracy of climbing formwork for pier columns, characterized in that, The template is equipped with a leveling unit and a monitoring unit. The leveling unit includes a tubular level, a circular level, and a leveling actuator. The method includes: S100: Position the template for the first layer, and adjust the leveling actuator to center the bubble of the circular level to complete rough leveling and the bubble of the tubular level to complete fine leveling; use the monitoring unit to collect the template tilt angle and record the template tilt angle, the status of the tubular level and the status of the circular level to the monitoring unit, combine them to obtain the zero reference and store it in the monitoring unit, mechanically lock the template, and pour the first layer of concrete; S200: Release the leveling actuator lock, adjust the template to climb to the target layer, use the zero-position reference as the target value, drive all the leveling actuators to adjust the template posture, and then pour the target layer concrete.

2. The method for controlling the accuracy of climbing formwork for pier columns according to claim 1, characterized in that, The monitoring unit includes an inclination sensor for acquiring the tilt angle of the template, an inertial measurement unit for acquiring attitude data, and a data acquisition unit. The data acquisition unit is signal-connected to the inclination sensor and the inertial measurement unit and receives and stores the zero-position reference.

3. The method for controlling the accuracy of climbing formwork for pier columns according to claim 1, characterized in that, S300: Before the concrete in this layer solidifies, the monitoring unit is used to collect and store the posture data and working conditions of the template.

4. The method for controlling the climbing formwork accuracy of pier columns according to claim 3, characterized in that, In step S300, the attitude data includes: the template tilt angle at the final attitude of the template obtained by the monitoring unit after the concrete of this layer is poured and solidified, the wind vibration data collected by the inertial measurement unit, the reading of the tube level and the reading of the circular level.

5. The method for controlling the accuracy of climbing formwork for pier columns according to claim 4, characterized in that, S400: The attitude data is transmitted to the processor, the deviation data between the attitude data and the zero-position reference is calculated, and the attitude data is compared and summarized with the attitude data of the same working conditions recorded in historical construction to identify the attitude offset pattern in the construction working condition.

6. The method for controlling the accuracy of climbing formwork for pier columns according to claim 5, characterized in that, For the identified attitude deviation pattern, in the subsequent adjustment process of the same working condition S200 step, a reverse pre-adjustment command is applied to the leveling actuator in advance to counteract the expected attitude deviation.

7. The method for controlling the accuracy of climbing formwork for pier columns according to claim 1, characterized in that, The readings of the tubular level and the circular level are manually collected and recorded to the monitoring unit by the operator after visual interpretation, or are automatically collected and transmitted to the monitoring unit by an electronic digital display level.

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