Intelligent trolley for monitoring hogging deformation on concrete beam
By incorporating a rebound deformation measuring instrument into the intelligent trolley, the arch deformation of the concrete beam can be monitored in real time, solving the problem of insufficient intelligence in existing technologies, achieving efficient and accurate monitoring and early warning functions, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽交控工程集团有限公司
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-24
AI Technical Summary
Existing technologies lack active monitoring of concrete structures, have insufficient intelligence, cannot monitor the arch deformation of concrete beams in real time, and are complex in structure, have low measurement accuracy, and are costly.
Design an intelligent trolley with a built-in spring-loaded deformation measuring instrument. By pre-drilling holes in the trolley platform and installing hole covers, a spring-driven pin measures the upward arching deformation of the concrete beam. Data is collected in real time and uploaded to a computer terminal, achieving automation and real-time monitoring. Combined with scientific point layout and data processing methods, the measurement accuracy is ensured.
It enables automated, real-time monitoring of arch deformation on concrete beams, providing accurate and reliable data at a low cost. The system is securely and reliably installed, enabling proactive quality control and timely early warning to prevent batch-related quality incidents.
Smart Images
Figure CN224552369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring the arching of concrete main beams, and in particular to an intelligent trolley for monitoring the arching deformation of concrete beams. Background Technology
[0002] The trolley is a commonly used piece of equipment in the production line of a precast concrete beam plant. It is used to move the main beam and also serves as the bottom formwork for the main beam. Current technology focuses on the mechanical assembly, hydraulic adjustment, and CNC transportation of the trolley, but does not involve aspects such as production quality control. In addition, the camber monitoring of traditional concrete main beams is generally carried out manually using a precision level, which is costly, inefficient, and cannot collect data in real time during the tensioning process, thus failing to provide early warning.
[0003] CN202411642609.9 discloses a bottom formwork system for automatic adjustment of matching beams, including a bottom formwork trolley and an electrical control box. The bottom formwork trolley has fixed plates, with fixed rods symmetrically fixed between the plates. Mounting plates are connected to both ends of the fixed plates. The mounting plates have positioning frames, and mounting frames are movably engaged within the positioning frames. Limiting plates are also movably engaged within the mounting frames. Y-axis jacks and X-axis jacks are respectively mounted on the outer sides of the positioning and mounting frames, and a Z-axis jack is mounted on the upper end of the limiting plate. The movable end of the Y-axis jack is connected to the outer side of the mounting frame via a connector. This bottom formwork system for automatic adjustment of matching beams achieves automated adjustment and control of the bottom formwork by improving the bottom formwork trolley based on an intelligent measurement system. However, it suffers from insufficient structural stability and high cost. CN202510101861.7 discloses a hydraulic trolley for precast box girder bottom formwork, belonging to the field of engineering equipment technology. It includes a bottom formwork assembly, with a hydraulic trolley located below the assembly. The hydraulic trolley includes a frame and several wheel sets. The frame includes two mounting beams, with several connecting beams equidistantly spaced between them. The connecting beams are connected to the two mounting beams by screws. Several mounting grooves are formed on the bottom side of the mounting beams, and the wheel sets are installed inside these grooves. Each wheel set includes a drive wheel, a driven wheel, and a wheel set mounting plate. However, it lacks automatic adjustment capabilities and has limited positioning accuracy. CN202411715751.1 discloses a novel coarse aggregate ultra-high performance concrete bridge deck prefabrication trolley, including a trolley frame, on which an adjustment module and a plate vibrator are mounted. The adjustment module includes a lateral adjustment mechanism and a longitudinal adjustment mechanism. The lateral adjustment mechanism includes an upper frame, a lower frame, and hydraulic connecting rods, with hydraulic connecting rods installed between the upper and lower frames. Multiple sets of hydraulic connecting rods are provided, and the hydraulic connecting rods are interconnected. The longitudinal adjustment mechanism includes a longitudinal shaft and a mounting frame, with the plate vibrator mounted on the longitudinal shaft, and the lower frame connected to the longitudinal shaft. However, the structure is complex and the maintenance cost is high.
[0004] Existing technologies lack active monitoring of the manufactured concrete structures, have insufficient intelligence, cannot monitor in real time, and have complex structures, resulting in low measurement accuracy. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an intelligent trolley for monitoring the arch deformation of concrete beams, achieving automated and real-time monitoring, accurate data and reliable measurement, minimal modification and change, low cost, firm and reliable installation, proactive quality control and real-time early warning.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] This utility model provides an intelligent trolley for monitoring the arch deformation of concrete beams, including an intelligent trolley and a rebound deformation measuring instrument.
[0008] The platform of the intelligent trolley has multiple holes pre-drilled longitudinally, and each hole is equipped with a hole cover plate.
[0009] The spring-loaded deformation measuring instrument is installed inside the intelligent trolley and located directly below the hole cover plate; the spring-loaded deformation measuring instrument includes: a pin, a spring, and a data acquisition module;
[0010] Before prestressing, the hole cover plate is flattened by the concrete beam; during prestressing, the concrete beam undergoes an upward arching deformation and separates from the intelligent trolley. The spring drives the push pin to push upward, and the acquisition module acquires the displacement of the push pin in real time to measure the upward arching deformation data and feeds the data back to the computer terminal to realize the monitoring of the upward arching deformation of the concrete beam.
[0011] Furthermore, the number of hole cover plates and rebound deformation measuring instruments arranged longitudinally along the intelligent trolley is at least five, corresponding to the two support points, two quarter points, and the mid-span position of the concrete beam, respectively.
[0012] Furthermore, the distance between the two support point hole cover plates is L-2D; the distance between the support point and the quarter point hole cover plates is (L / 2-D) / 2; the distance between the quarter point and the mid-span hole cover plate is L / 4; L is the total length of the concrete beam, and D is the distance between the beam end of the concrete beam and the support.
[0013] Furthermore, the acquisition module has the function of real-time data acquisition, with a minimum acquisition frequency of 20Hz.
[0014] Furthermore, the acquisition module uploads the acquired arch deformation data to the computer terminal in real time and compares it with the theoretical tensioned arch deformation value in real time.
[0015] Furthermore, the computer terminal issues an early warning when it detects that the error between the actual arch deformation value and the theoretical value exceeds 5%.
[0016] Furthermore, before prestressing, the concrete beam and the intelligent trolley are in close contact. During the prestressing process, the concrete beam undergoes an upward arching deformation and gradually separates from the intelligent trolley. The upward arching deformation produced by the rebound deformation measuring instrument at different positions of the concrete beam is different.
[0017] Furthermore, the measurement points for the arch deformation include: deformation measurement at the first support point, deformation measurement at the second support point, deformation measurement at the first quarter point, deformation measurement at the second quarter point, and deformation measurement at the mid-span.
[0018] Furthermore, the actual arch shape of the concrete beam is calculated using the deformation values measured at each measurement point. The mid-span and quarter-point arch shapes are calculated as follows: Mid-span upper arch = D 43 -(D 41 +D 45 ) / 2; The two quarter points are D respectively. 42 -(D 41 +D 45 ) / 2、D 44 -(D 41 +D 45 ) / 2; where D 41 D 42 D 43 D 44 D 45 The deformation values measured at the first support point, the first quarter point, the mid-span, the second quarter point, and the second support point are respectively.
[0019] Furthermore, the spring-loaded deformation measuring instrument is fixed inside the intelligent trolley by a fixing frame.
[0020] The monitoring process of the intelligent trolley includes the following steps:
[0021] S1: Concrete beams are poured on the intelligent trolley, at which point the hole cover plates are flattened.
[0022] S2: The concrete beam is prestressed and tensioned, causing it to arch upwards and detach from the intelligent trolley.
[0023] S3: The spring of the spring-loaded deformation measuring instrument pushes the pin upward, and the acquisition system obtains the upward arch deformation data;
[0024] S4: Feed the data back to the computer terminal for real-time analysis and comparison.
[0025] Compared with the prior art, the present invention has the following advantages:
[0026] (1) Achieving automated and real-time monitoring. Traditional trolleys are merely mechanical equipment used to move and support concrete beams, without participating in quality control. This invention deeply integrates monitoring functions into the trolley itself, achieving fully automated, continuous, and real-time high-frequency monitoring by adding a rebound deformation measuring instrument and a data processing system. The sensor's minimum acquisition frequency reaches 20Hz, enabling it to instantly capture the upward arching deformation of the beam during prestressing tensioning and upload the data to the computer terminal in real time. This real-time capability allows operators to immediately perceive the tensioning effect.
[0027] (2) Accurate data and reliable measurements. Through scientific data point layout (two support points, two quarter points, and mid-span) and data processing methods, the accuracy and reliability of the measurement results were ensured. Calculation formulas were used to eliminate the influence of factors such as support point settlement, thereby calculating the true net arch value, rather than the absolute displacement. This provides a reliable data basis for accurately assessing whether the main beam alignment meets design requirements.
[0028] (3) The modification is minimal, the cost is low, and the installation is firm and reliable. Only holes are reserved on the existing trolley and a measurement module is added. The original main structure and core functions are minimally modified, which is conducive to promotion and popularization in the existing prefabrication plant production line, and achieves the unity of high technology content and high engineering feasibility.
[0029] (4) Proactive quality control and real-time early warning. The system automatically compares the real-time collected data with the theoretical model. When the error exceeds the 5% threshold, an early warning is issued immediately, enabling staff to detect abnormalities as soon as possible during or after tensioning, thus providing an opportunity for intervention and adjustment, and effectively preventing batch quality accidents. Attached Figure Description
[0030] Figure 1 A schematic diagram of the overall layout of the intelligent trolley used to monitor the arch deformation of concrete beams. Figure 1 ;
[0031] Figure 2 A schematic diagram of the overall layout of the intelligent trolley used to monitor the arch deformation of concrete beams. Figure 2 (Including hole cover plates);
[0032] Figure 3 A schematic diagram of the top surface layout of an intelligent trolley used to monitor the arch deformation of a concrete beam.
[0033] Figure 4 A schematic diagram of the prestressed tensioning of a concrete beam, used by an intelligent trolley for monitoring the arching deformation of concrete beams.
[0034] Figure 5 A schematic diagram of the prestressed elevation of a concrete beam after tensioning, used by an intelligent trolley for monitoring the arch deformation of concrete beams.
[0035] Figure 6 A schematic diagram of the arching profile of an intelligent trolley used to monitor the arching deformation of concrete beams;
[0036] Figure 7 A schematic diagram of a spring-loaded deformation measuring instrument for prestressed concrete beams before the concrete beam is prestressed and tensioned, used by an intelligent trolley for monitoring the arch deformation of concrete beams.
[0037] Figure 8 This is a schematic diagram of a spring-loaded deformation measuring instrument for prestressed concrete beams, used by an intelligent trolley for monitoring the arch deformation of concrete beams.
[0038] Attached reference numerals: 1. Intelligent trolley; 2. Concrete beam; 3. Rebound deformation measuring instrument; 4. Arch deformation;
[0039] 101. Hole cover plate; 1011. Spacing between hole cover plates at two support points; 1012. Spacing between hole cover plates at the support point and the quarter point; 1013. Spacing between hole cover plates at the quarter point and the mid-span.
[0040] 301. Ejector pin; 302. Spring; 303. Acquisition module; 304. Mounting bracket;
[0041] 41. Deformation measured at the first support point; 45. Deformation measured at the second support point; 42. Deformation measured at the first quarter point; 44. Deformation measured at the second quarter point; 43. Deformation measured at the mid-span. Detailed Implementation
[0042] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.
[0043] Example 1
[0044] This embodiment provides an intelligent trolley for monitoring the arch deformation of concrete beams, such as... Figures 1-8 As shown, it includes an intelligent trolley 1 and a spring-loaded deformation measuring instrument 3;
[0045] The platform of the intelligent trolley 1 has multiple holes pre-drilled longitudinally, and each hole is provided with a hole cover plate 101;
[0046] The spring-loaded deformation measuring instrument 3 is installed inside the intelligent trolley 1 and is located directly below the hole cover plate 101; the spring-loaded deformation measuring instrument 3 includes: a pin 301, a spring 302, and a data acquisition module 303;
[0047] Before prestressing, the hole cover plate 101 is flattened by the concrete beam 2; during prestressing, the concrete beam 2 undergoes an upward arching deformation 4 and separates from the intelligent trolley 1. The spring 302 drives the ejector pin 301 to push upward. The acquisition module 303 acquires the displacement of the ejector pin 301 in real time to measure the upward arching deformation 4 data and feeds the data back to the computer terminal to realize the monitoring of the upward arching deformation of the concrete beam.
[0048] Example 2
[0049] This embodiment provides an intelligent trolley for monitoring the arch deformation of concrete beams, such as... Figures 1-8 As shown, it includes an intelligent trolley 1 and a spring-loaded deformation measuring instrument 3;
[0050] The platform of the intelligent trolley 1 has multiple holes pre-drilled longitudinally, and each hole is provided with a hole cover plate 101;
[0051] The spring-loaded deformation measuring instrument 3 is installed inside the intelligent trolley 1 and is located directly below the hole cover plate 101; the spring-loaded deformation measuring instrument 3 includes: a pin 301, a spring 302, and a data acquisition module 303;
[0052] Before prestressing, the hole cover plate 101 is flattened by the concrete beam 2; during prestressing, the concrete beam 2 undergoes an upward arching deformation 4 and separates from the intelligent trolley 1. The spring 302 drives the ejector pin 301 to push upward. The acquisition module 303 acquires the displacement of the ejector pin 301 in real time to measure the upward arching deformation 4 data and feeds the data back to the computer terminal to realize the monitoring of the upward arching deformation of the concrete beam.
[0053] In a specific implementation, the number of hole cover plates 101 and spring-loaded deformation measuring instruments 3 arranged longitudinally along the intelligent trolley 1 is at least five, corresponding to the two support points, two quarter points and the mid-span position of the concrete beam 2, respectively.
[0054] In a specific implementation, the distance between the two support point hole cover plates 1011 is L-2D; the distance between the support point and the quarter point hole cover plates 1012 is (L / 2-D) / 2; the distance between the quarter point and the mid-span hole cover plates 1013 is L / 4; L is the total length of the concrete beam 2, and D is the distance between the beam end of the concrete beam 2 and the support.
[0055] In a specific implementation, the acquisition module 303 has the function of real-time data acquisition, with a minimum acquisition frequency of 20Hz.
[0056] In a specific implementation, the acquisition module 303 uploads the acquired arch deformation data to the computer terminal in real time and compares it with the theoretical tensioned arch deformation value in real time.
[0057] In a specific implementation, the computer terminal issues an early warning when it detects that the error between the actual arch deformation value and the theoretical value exceeds 5%.
[0058] In a specific implementation, the concrete beam 2 and the intelligent trolley 1 are in close contact before prestressing tensioning. During the prestressing tensioning process, the concrete beam 2 undergoes an upward arching deformation 4 and gradually separates from the intelligent trolley 1. The upward arching deformation produced by the rebound deformation measuring instrument 3 at different positions of the concrete beam 2 is different.
[0059] In a specific implementation, the measurement points for the deformation of the upper arch include: deformation measurement 41 at the first support point, deformation measurement 45 at the second support point, deformation measurement 42 at the first quarter point, deformation measurement 44 at the second quarter point, and deformation measurement 43 at the mid-span.
[0060] In a specific implementation, the actual arch shape of the concrete beam 2 is calculated using the deformation values measured at each measuring point. The mid-span and quarter-point arch shapes are calculated as follows: Mid-span upper arch = D 43 -(D 41 +D 45 ) / 2; The two quarter points are D respectively. 42 -(D 41 +D 45 ) / 2、D 44 -(D 41 +D 45 ) / 2; where D 41 D 42 D 43 D 44 D 45 The deformation values measured at the first support point, the first quarter point, the mid-span, the second quarter point, and the second support point are respectively.
[0061] In a specific embodiment, the spring-loaded deformation measuring instrument 3 is fixed inside the intelligent trolley 1 by a fixing frame 304.
[0062] The monitoring process of the intelligent trolley includes the following steps:
[0063] S1: Concrete beam 2 is poured on intelligent trolley 1, at which time hole cover plate 101 is flattened;
[0064] S2: Prestressing tension is applied to concrete beam 2, causing concrete beam 2 to undergo an upward arching deformation 4 and detach from the intelligent trolley 1.
[0065] S3: The spring 302 of the spring-loaded deformation measuring instrument 3 pushes the pin 301 upward, and the acquisition system 303 acquires the data of the upper arch deformation 4.
[0066] S4: Feed the data back to the computer terminal for real-time analysis and comparison.
[0067] Components not described in detail in this embodiment are all existing components that can be purchased through public channels.
[0068] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.
Claims
1. An intelligent trolley for monitoring the arch deformation of concrete beams, characterized in that, Including a smart trolley (1) and a spring-loaded deformation measuring instrument (3); The platform of the intelligent trolley (1) has multiple holes pre-drilled longitudinally, and each hole is provided with a hole cover plate (101). The spring-loaded deformation measuring instrument (3) is installed inside the intelligent trolley (1) and located directly below the hole cover plate (101); the spring-loaded deformation measuring instrument (3) includes: a pin (301), a spring (302), and a data acquisition module (303). Before prestressing, the hole cover plate (101) is flattened by the concrete beam (2); during prestressing, the concrete beam (2) undergoes an upward arching deformation (4) and separates from the intelligent trolley (1). The spring (302) drives the pin (301) to push upward. The acquisition module (303) acquires the displacement of the pin (301) in real time to measure the upward arching deformation (4) data and feeds the data back to the computer terminal to realize the monitoring of the upward arching deformation of the concrete beam.
2. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 1, characterized in that, The number of hole cover plates (101) and rebound deformation measuring instruments (3) arranged longitudinally along the intelligent trolley (1) is at least five, corresponding to the two support points, two quarter points and the mid-span position of the concrete beam (2).
3. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 2, characterized in that, The distance between the two support point hole cover plates (1011) is L-2D; the distance between the support point and the quarter point hole cover plates (1012) is (L / 2-D) / 2; the distance between the quarter point and the mid-span hole cover plates (1013) is L / 4; L is the total length of the concrete beam (2), and D is the distance between the beam end of the concrete beam (2) and the support.
4. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 1, characterized in that, The acquisition module (303) has the function of real-time data acquisition, and the minimum acquisition frequency is 20Hz.
5. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 1, characterized in that, The acquisition module (303) uploads the acquired arch deformation data to the computer terminal in real time and compares it with the theoretical tensioned arch deformation value in real time.
6. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 5, characterized in that, The computer terminal issues an early warning when it detects that the error between the actual arch deformation value and the theoretical value exceeds 5%.
7. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 1, characterized in that, Before prestressing, the concrete beam (2) and the intelligent trolley (1) are in close contact. During the prestressing process, the concrete beam (2) undergoes an upward arching deformation (4) and gradually separates from the intelligent trolley (1). The upward arching deformation produced by the rebound deformation measuring instrument (3) at different positions of the concrete beam (2) is different.
8. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 7, characterized in that, The measurement points for the deformation of the upper arch include: deformation measured at the first support point (41), deformation measured at the second support point (45), deformation measured at the first quarter point (42), deformation measured at the second quarter point (44), and deformation measured at the mid-span (43).
9. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 8, characterized in that, The actual arch shape of the concrete beam (2) is calculated by measuring the deformation values at each measurement point. The mid-span and quarter-point arch shapes are calculated as follows: Mid-span upper arch = D 43 -(D 41 +D 45 ) / 2; The two quarter points are D respectively. 42 -(D 41 +D 45 ) / 2、D 44 -(D 41 +D 45 ) / 2; where D 41 D 42 D 43 D 44 D 45 The deformation values measured at the first support point, the first quarter point, the mid-span, the second quarter point, and the second support point are respectively.
10. The intelligent trolley for monitoring the arch deformation of a concrete beam according to claim 1, characterized in that, The spring-loaded deformation measuring instrument (3) is fixed inside the intelligent trolley (1) by a fixing frame (304).