A slide beam load test system and method

Abstract

The application discloses a slide beam load test system and method, which comprises a deck piece, a slide beam, a deck support unit, a structure reinforcing unit, an upper force transmission unit, a lower counterweight loading unit, a load monitoring unit and an adjusting unit. The lower part of the deck piece is provided with at least one slide beam. The deck support unit is arranged below the deck piece. The structure reinforcing unit is arranged on the deck piece at the local weak structure corresponding to the slide beam. The lower counterweight loading unit is arranged on the ground directly below the test point of the slide beam. The upper force transmission unit is connected between the test point of the slide beam and the lower counterweight loading unit. The load monitoring unit is connected in series in the upper force transmission unit. The adjusting unit is connected in series in the upper force transmission unit, and has the advantages of reducing construction cost and improving test efficiency.

Description

Technical Field

[0001] This invention belongs to the field of steel structure construction, and in particular relates to a system and method for testing the load of a sliding beam. Background Technology

[0002] In the construction of steel structure products such as offshore oil modules and prefabricated modules, slide beams are usually installed below the deck beam structure and above the equipment. They are used in conjunction with trolleys to carry out hoisting operations during equipment maintenance. Their load-bearing capacity is directly related to the safety of the steel structure products in subsequent use. Therefore, load tests must be carried out after the slide beams are installed to verify whether they meet the rated load-bearing standards.

[0003] Traditional slide beam load tests are conducted after the steel structure product has been hoisted and integrated across each deck level. During the test, slings are wrapped around the slide beam from top to bottom, and various rigging devices are connected. Finally, the test system is connected to the welded eye plate on the deck below the slide beam, and the load is applied by adjusting the chain hoist. However, this testing method has many drawbacks: the slide beam is located inside the module / section, making the test system prone to collisions and interference with existing equipment and pipelines. To avoid interference, some equipment / pipelines need to be removed, significantly increasing construction costs; in some scenarios, interference cannot be avoided, directly preventing the load test from being conducted; simultaneously, the traditional test system has low load control accuracy, easily generating lateral shear forces when applying loads, causing non-experimental structural damage to the slide beam; furthermore, the traditional testing process cannot adapt to the load testing needs of slide beams in single-deck construction projects, leaving a gap in applicable scenarios.

[0004] Therefore, there is an urgent need to design a test system and method for the load on a sliding beam to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a sliding beam load testing system and method, which has the advantages of reducing construction costs and improving testing efficiency.

[0006] To achieve the above objectives, the specific technical solution of the slide beam load testing system and method of the present invention is as follows: A slide beam load testing system includes: deck segmentation, slide beam, deck support unit, structural reinforcement unit, upper force transmission unit, lower counterweight loading unit, load monitoring unit, and adjustment unit; At least one slide beam is installed at the lower part of the deck segment; The deck support unit is located below the deck segment and is used to lift the deck segment as a whole, so that an operating space is formed between the bottom of the lower flange of the slide beam and the ground. The structural reinforcement unit is disposed on the deck segment corresponding to the local weak structure of the slide beam, and is used to provide temporary reinforcement support for the slide beam; The lower counterweight loading unit is set on the ground directly below the test point of the slide beam to provide the reaction load required for the test; The upper force transmission unit is connected between the test point of the slide beam and the lower counterweight loading unit, and is used to transmit tensile force; The load monitoring unit is connected in series with the upper force transmission unit and is used to monitor and display the tensile force value in real time. The adjustment unit is connected in series with the upper force transmission unit and is used to actively adjust and maintain the tension applied to the test point of the slide beam.

[0007] Furthermore, the structural reinforcement unit includes at least one set of cantilever beam reinforcement supports, which are height-adjustable support members and are located at the bottom of the cantilever beams formed by the segmentation of the deck.

[0008] Furthermore, the lower counterweight loading unit includes sleepers, a bearing member, a counterweight block, and a first shackle. The sleepers are laid on the hardened ground directly below the test measuring point of the slide beam. The bearing member is placed on the upper end of the sleepers to support the counterweight block. The end of the bearing member is connected to the adjustment unit through the first shackle.

[0009] Furthermore, the counterweights are stacked inside the support member, and a flexible protective member is provided at the contact corner between the support member and the counterweights.

[0010] Furthermore, the upper force transmission unit includes a connector and a second shackle. One end of the connector is connected to the slide beam, and the other end of the connector is connected to the input end of the load monitoring unit through the second shackle.

[0011] Furthermore, the load monitoring unit employs a force gauge or a force sensor.

[0012] Furthermore, the slide beam load test system also includes a controller, the input terminal of which is electrically connected to the output terminal of the load monitoring unit, and the output terminal of which is electrically connected to the adjustment unit.

[0013] Furthermore, the deck support unit includes temporary structural supports or deck segments with their own columns. The number and position of these supports are determined according to the structure and weight distribution of the deck segments to ensure the overall stability of the deck segments after jacking.

[0014] Furthermore, the cantilever beam reinforcement support adopts an adjustable screw jack support or a steel support frame bolted to the deck beam.

[0015] A method for testing the load of a slide beam using the above-mentioned slide beam load testing system includes the following steps: S1. Prefabricated deck panels are segmented, and a slide beam is installed at the lower part of the deck panel segments; S2. The deck section is raised as a whole by the deck support unit so that the bottom of the lower flange of the slide beam is at a preset safe height from the ground. S3. The slide beam is reinforced using structural strengthening units; S4. Connect one end of the upper force transmission unit to the test measuring point of the slide beam, and the other end to the input end of the load monitoring unit to realize the vertical transmission of the test force. S5. Arrange a lower counterweight loading unit directly below the test measuring point of the slide beam to form a load-bearing foundation; S6. Connect one end of the adjustment unit to the output end of the load monitoring unit and the other end to the lower counterweight loading unit to build a complete slide beam load test system. S7. Operate the adjustment unit to tighten the upper force transmission unit, so that the slide beam load test system is in a taut and stressed state. Monitor the test load value in real time through the load monitoring unit, gradually increase the load to the target value, and observe the stability of the structure at the preset load node to complete the slide beam load test.

[0016] Furthermore, in step S7, the load is gradually increased by a graded loading method, and the load is gradually increased to the target value in several levels, and the load is held for a predetermined time under each level of load.

[0017] Furthermore, the preset safety height is 3 to 4.5 meters.

[0018] The slide beam load testing system and method of the present invention have the following advantages: 1. This invention moves the slide beam load test process to the ground stage before the deck plate hoisting and integration, completely avoiding the collision and interference problems between the test system and equipment and pipelines in the traditional post-integration test. It eliminates the need to remove the installed equipment / pipelines, greatly reducing construction costs, and at the same time solves the problem that some interference cannot be avoided, which makes the test impossible to carry out.

[0019] 2. The system adopts a modular unit design, including multiple functional units such as deck support unit, structural reinforcement unit, and upper force transmission unit. All units are detachably connected, which facilitates the rapid assembly and disassembly of the test system. After the test, each unit can be recycled and reused, reducing the cost of test consumables.

[0020] 3. The vertical transmission of the test tension is achieved through the upper force transmission unit, so that the test point of the slide beam only bears the vertical downward tension and no lateral shear force is generated, thus avoiding structural damage to the slide beam caused by non-test loads and protecting the original structure of the slide beam.

[0021] 4. The structural reinforcement unit adopts height-adjustable cantilever beam reinforcement support, which is suitable for different specifications of deck segments and cantilever beam structures. The support height can be flexibly adjusted according to the test requirements to ensure the structural stability of the deck segments and slide beams during the test. The deck support unit can choose temporary structural support or deck segments with built-in columns, with flexible arrangement to suit deck segments of different weights and structures.

[0022] 5. The load monitoring unit can use a tension gauge or tension sensor, which, together with the controller, can realize automatic monitoring and adjustment of the load, replacing manual operation and improving the accuracy of load control. The test load input error can be controlled within ±3%. At the same time, the use of graded loading and load observation further improves the safety of the test and the accuracy of the test results.

[0023] 6. The test system and method are compatible with a wide range of test loads for slide beams. By adjusting the number of counterweights, replacing load monitoring units with different ranges and connecting and bearing components with different load capacities, it is possible to achieve full coverage of load tests on slide beams of different specifications and with different load requirements. At the same time, it is suitable for load tests on slide beams in single deck construction projects, filling the application gap of traditional processes.

[0024] 7. The entire test is conducted on the ground, with ample operating space. The installation and commissioning of each unit are convenient and quick, and a single person can complete the core operations. Compared with traditional processes, the construction efficiency is increased by more than 60%. After the test, the deck panels can be directly hoisted and integrated without additional post-processing, improving the overall construction efficiency of steel structure products. Attached Figure Description

[0025] Figure 1 This is a top view of the deck sections of the slide beam load testing system of the present invention; Figure 2 The present invention provides a test system for the load testing of a sliding beam. Figure 1 Section A; Figure 3 The present invention provides a test system for the load testing of a sliding beam. Figure 1 Section B; Figure 4 The present invention provides a test system for the load testing of a sliding beam. Figure 1 Section C; Figure 5 The present invention provides a test system for the load testing of a sliding beam. Figure 1 Section D; Figure 6 This is a partial structural schematic diagram of the lower counterweight loading unit of the slide beam load testing system of the present invention; Figure 7 This is the control flow of the slide beam load testing system of the present invention.

[0026] Explanation of markings in the diagram: 1. Deck section; 2. Slipway beam; 3. Deck support unit; 4. Structural reinforcement unit; 5. Lower counterweight loading unit; 51. Sleeper; 52. Counterweight block; 53. Bearing component; 54. First shackle; 6. Upper force transmission unit; 61. Connector; 62. Second shackle; 7. Load monitoring unit; 8. Adjustment unit; 9. Controller. Detailed Implementation

[0027] 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. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

[0028] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0029] The following is a reference to the appendix. Figure 1 To be continued Figure 7 This invention describes a slide beam load testing system and method.

[0030] like Figures 1 to 6 As shown, a slide beam load testing system includes: deck segment 1, slide beam 2, deck support unit 3, structural reinforcement unit 4, upper force transmission unit 6, lower counterweight loading unit 5, load monitoring unit 7, and adjustment unit 8; At least one slide beam 2 is installed on the lower part of the deck segment 1, and the deck segment 1 provides an installation base for the slide beam 2; The deck support unit 3 is located below the deck segment 1 and is used to lift the deck segment 1 as a whole, so that an operating space is formed between the bottom of the lower flange of the slide beam 2 and the ground, which facilitates the construction and operation of the test system. The structural reinforcement unit 4 is disposed on the deck segment 1 at the local weak point of the slide beam 2, and is used to provide temporary reinforcement support for the slide beam 2 to ensure the structural stability of the deck segment 1 and the slide beam 2 during the test. The lower counterweight loading unit 5 is set on the ground directly below the test point of the slide beam 2, and is used to provide the reaction load required for the test, providing a load basis for the tensile test of the slide beam 2; The upper force transmission unit 6 is connected between the test point of the slide beam 2 and the lower counterweight loading unit 5, and is used to realize the vertical transmission of the test tensile force to ensure the uniqueness of the tensile force direction; The load monitoring unit 7 is connected in series with the upper force transmission unit 6 and is used to monitor and display the tension value in real time, providing accurate data for load adjustment. The adjustment unit 8 is connected in series with the upper force transmission unit 6 and is used to actively adjust and maintain the tension applied to the test point of the slide beam 2, so as to realize the graded application and load holding control of the test load.

[0031] Furthermore, such as Figure 4 As shown, the structural reinforcement unit 4 includes at least one set of cantilever beam reinforcement supports, which are height-adjustable support members and are located at the bottom of the cantilever beams formed by the splitting of the deck sections.

[0032] Preferably, the cantilever beam reinforcement support adopts an adjustable screw jack support or a steel support frame bolted to the deck beam, which can flexibly adjust the support height according to the height of the cantilever beam and the load test requirements, and is suitable for different specifications of deck segments 1.

[0033] Furthermore, such as Figure 5 and Figure 6 As shown, the lower counterweight loading unit 5 includes sleepers 51, a bearing member 53, a counterweight block 52, and a first shackle 54. The sleepers 51 are laid on the hardened ground directly below the test measuring point of the slide beam 2 to distribute the counterweight load and protect the test ground. The bearing member 53 is placed on the upper end of the sleepers 51 to support the counterweight block 52. The end of the bearing member 53 is connected to the adjustment unit 8 through the first shackle 54 to achieve a detachable connection with the upper force transmission unit 6.

[0034] Furthermore, the counterweight 52 is stacked inside the support member 53, and a flexible protective member is provided at the contact corner between the support member 53 and the counterweight 52 to avoid structural wear caused by contact friction between the support member 53 and the counterweight 52. Preferably, the support member 53 is a steel wire rope.

[0035] Furthermore, such as Figure 5 As shown, the upper force transmission unit 6 includes a connector 61 and a second shackle 62. One end of the connector 61 is connected to the slide beam 2, and the other end of the connector 61 is connected to the input end of the load monitoring unit 7 through the second shackle 62. The shackle connection enables the quick assembly and disassembly of each component, which facilitates the construction and disassembly of the test system.

[0036] Preferably, the connector 61 is a sling or wire rope, and a flexible protective component can be added to the contact part with the slide beam 2 to prevent the surface of the slide beam 2 from being worn.

[0037] Furthermore, such as Figure 7 As shown, the load monitoring unit 7 uses a tension gauge or a tension sensor, which can be flexibly selected according to the test load range requirements to realize real-time display and accurate monitoring of the test tension. The monitoring accuracy can meet the error requirements of ±3% of the test load.

[0038] Furthermore, such as Figure 7 As shown, the slide beam load test system also includes a controller 9. The input terminal of the controller 9 is electrically connected to the output terminal of the load monitoring unit 7, and the output terminal of the controller 9 is electrically connected to the adjustment unit 8. The controller 9 realizes automatic monitoring and adjustment of the load, replacing manual operation and improving the accuracy of load control and the automation level of the test process.

[0039] Furthermore, the deck support unit 3 includes temporary structural supports or self-contained columns for the deck segment 1. The number and position of these columns are determined according to the structure and weight distribution of the deck segment to ensure the overall stability of the deck segment 1 after lifting. This prevents the deck segment 1 from tilting or shifting during the test. After the deck support unit 3 lifts the deck segment 1, the distance between the bottom of the lower flange of the slide beam 2 and the ground is 3 to 4.5 meters, ensuring sufficient space for the test operation while maintaining the support stability of the deck support unit 3.

[0040] A method for testing the load of a slide beam using the above-mentioned slide beam load testing system includes the following steps: S1. Prefabricated deck segment 1. At least one slide beam 2 is installed on the lower part of the deck segment 1. After the slide beam 2 and the deck segment 1 are fixedly connected, the whole is sprayed. Then the deck segment 1 equipped with the slide beam 2 is transported to an open, flat, hardened test site to ensure that the ground bearing capacity of the test site meets the test requirements. S2. The deck segment 1 is raised as a whole by the deck support unit 3, so that the bottom of the lower flange of the slide beam 2 is kept at a preset safe height of 3 to 4.5 meters with the ground to form a test operation space. The number and position of the deck support unit 3 are determined according to the structure and weight distribution of the deck segment 1 and the test load of the slide beam 2, so as to always ensure the overall stability of the deck segment 1 after it is lifted. S3. Identify the local weak structures on the deck segment 1 corresponding to the slide beam 2, especially the cantilever beam structure formed by the splitting of the deck segment 1. Use structural reinforcement unit 4 to reinforce the slide beam 2, arrange the cantilever beam reinforcement support at the bottom of the cantilever beam, adjust the support height so that the cantilever beam reinforcement support is in rigid contact with the cantilever beam to form a stable vertical support. S4. One end of the connector 61 of the upper force transmission unit 6 is wrapped and fixed at the test measuring point of the slide beam 2. A flexible protective part is added to the contact part between the connector 61 and the slide beam 2. The other end of the connector 61 is connected to the input end of the load monitoring unit 7 to ensure that all components are firmly connected and realize the vertical transmission of the test force. S5. Lay sleepers 51 on the hardened ground directly below the test measuring point of the slide beam 2, place a bearing member 53 on the upper end of the sleeper 51, stack counterweights 52 inside the bearing member 53, and set a flexible protective member at the corner where the bearing member 53 and the counterweights 52 contact, thus completing the arrangement of the lower counterweight loading unit 5 and forming a load-bearing foundation. S6. Connect one end of the adjustment unit 8 to the output end of the load monitoring unit 7, and connect the other end of the adjustment unit 8 to the lower counterweight loading unit 5 through the first shackle 54. Check the connection status of each unit in turn, and after confirming that it is firm, build a complete slide beam load test system. S7. Operate the adjustment unit 8 to tighten the upper force transmission unit 6, so that the slide beam load test system is in a taut and stressed state. The load monitoring unit 7 monitors the test load value in real time, and gradually increases the load to the target value by using a graded loading method. The structural stability of the deck segment 1, slide beam 2 and each test unit is observed at the preset load node to complete the load test of slide beam 2.

[0041] Furthermore, in step S7, the load is gradually increased using a graded loading method, and the load is gradually increased to the target value in several levels. The load is held for a predetermined time under each level of load, and the structure is observed to observe whether there are any abnormalities such as deformation, displacement, or abnormal noise. Preferably, the preset load nodes include 25%, 100% of the safe working load of the slide beam 2, and the calibration test load of the slide beam 2. When the calibration test load is reached, the load is held for 5 minutes and the stability of each structure is continuously monitored. If there are no abnormalities in each structure, the load-bearing capacity of the slide beam 2 is determined to meet the standard.

[0042] Furthermore, the preset safety height is 3 to 4.5 meters.

[0043] The present invention will be further illustrated by specific embodiments below, but these embodiments do not limit the scope of protection of the present invention.

[0044] Example 1 like Figures 1 to 7 As shown, this embodiment provides a slide beam load testing system including: deck segment 1, slide beam 2, deck support unit 3, structural reinforcement unit 4, upper force transmission unit 6, lower counterweight loading unit 5, load monitoring unit 7, adjustment unit 8, and controller 9; Four slide beams 2 are installed on the lower part of the deck segment 1, which are evenly distributed in the lower area of ​​the deck segment 1 to provide a stable installation foundation for the slide beams 2. The deck support unit 3 uses the deck segment 1 with its own columns, a total of 9 columns are arranged, and are evenly arranged below the deck segment 1 according to the weight distribution of the deck segment 1. The deck segment 1 is lifted up as a whole, so that a 3-meter operating space is formed between the bottom of the lower flange of the slide beam 2 and the ground, ensuring the convenience of the test system construction and operation, while maintaining the overall stability of the deck segment 1. The structural reinforcement unit 4 includes two sets of cantilever beam reinforcement supports. The cantilever beam reinforcement supports adopt adjustable screw jack supports, which are set at the bottom of the cantilever beam formed by the deck segmentation. The height of the screw jack supports can be flexibly adjusted and are in rigid contact with the cantilever beam to provide vertical reinforcement support for the cantilever beam and solve the problem of insufficient strength of the cantilever beam. The lower counterweight loading unit 5 is set on the hardened ground directly below the test point of the slide beam 2. It includes sleepers 51, bearing members 53, counterweight blocks 52 and first shackles 54. The sleepers 51 are two solid wood sleepers laid in parallel. The bearing members 53 are steel wire ropes, symmetrically distributed on the upper end of the sleepers 51. The counterweight blocks 52 are standard cast iron counterweights, stacked inside the bearing members 53. Rubber pads are set at the contact corners between the bearing members 53 and the counterweight blocks 52 as flexible protective parts to prevent wear caused by contact friction. The end of the bearing members 53 is detachably connected to the adjustment unit 8 through the first shackles 54. The upper force transmission unit 6 includes a connector 61 and a second shackle 62. The connector 61 is a steel wire rope, one end of which is wound and fixed at the test point of the slide beam 2. A rubber pad is set at the contact part between the steel wire rope and the slide beam 2 as a flexible protective part. The other end is connected to the input end of the load monitoring unit 7 through the second shackle 62 to realize the vertical transmission of the test tensile force. The load monitoring unit 7 uses a digital display tensile gauge with a range matching the test load requirements. It is connected in series with the upper force transmission unit 6 and can monitor and display the test tensile force value in real time. The monitoring accuracy is ±2% of the test load. The adjustment unit 8 is a manual chain hoist connected in series in the upper force transmission unit 6, located between the load monitoring unit 7 and the lower counterweight loading unit 5, and is used to manually adjust and maintain the tension applied to the test point of the slide beam 2. The input terminal of the controller 9 is electrically connected to the output terminal of the load monitoring unit 7, and the output terminal of the controller 9 is electrically connected to the adjustment unit 8. In this embodiment, the adjustment unit 8 is provided with an electric adjustment interface. The controller 9 can receive the tension data of the load monitoring unit 7 and automatically control the extension and retraction of the adjustment unit 8 according to the preset load value to realize automatic load adjustment.

[0045] Example 2 This embodiment provides a method for testing the load of a slide beam using the slide beam load testing system described in Embodiment 1. Load tests are conducted on deck segment 1 and slide beam 2 of a marine oil module. The calibrated test load of slide beam 2 is 100kN, and the safe working load is 80kN. The method includes the following steps: S1. Prefabricate deck segment 1 according to the design requirements of offshore oil module. Install 4 slide beams 2 on the lower part of deck segment 1. The slide beams 2 and deck segment 1 are fixedly connected by welding. The deck segment 1 and slide beams 2 are treated with anti-corrosion spraying. After the spraying is completed, the deck segment 1 with slide beams 2 is transported by crane to an open, flat and hardened test site in the plant area. The bearing capacity of the test site is not less than 20MPa and the flatness error is not greater than 5mm within 2m.

[0046] S2. Arrange 9 self-contained columns as deck support units 3 below deck segment 1. Use hydraulic jacking equipment to operate deck support units 3 to raise deck segment 1 as a whole, so that the bottom of the lower flange of the slide beam 2 is 3 meters above the ground at a preset safe height. After the jacking is completed, fix the deck support unit 3, check the levelness and stability of deck segment 1, and complete the jacking operation after confirming that there is no tilt or offset.

[0047] S3. Identify the local weak structures on the deck segment 1 corresponding to the slide beam 2, determine the two cantilever beams formed by the deck segment split as the core weak parts, and arrange two sets of adjustable screw jack supports as cantilever beam reinforcement supports at the bottom of the cantilever beams. Adjust the height of the screw jack supports to make the supports in rigid contact with the cantilever beams, forming a stable vertical support, and complete the reinforcement of the surrounding structure of the slide beam 2.

[0048] S4. Tightly wrap and fix one end of the wire rope connector 61 in the upper force transmission unit 6 to the test measuring point of the slide beam 2. Lay a rubber pad at the contact point between the wire rope and the slide beam 2. Connect the other end of the wire rope to the input end of the digital display tension gauge (load monitoring unit 7) through the second shackle 62. Check the firmness of the connection to ensure that there is no risk of loosening or slippage.

[0049] S5. Two solid wood sleepers 51 are laid parallel to each other on the hardened ground directly below the test measuring point of the slide beam 2. Steel wire rope bearing components 53 are symmetrically arranged on the upper end. Standard cast iron counterweights 52 are stacked inside the bearing components 53. The total weight of the counterweights 52 matches the test load requirement of 100kN. Rubber pads are laid at the contact corners between the bearing components 53 and the counterweights 52 as flexible protective components to complete the arrangement of the lower counterweight loading unit 5.

[0050] S6. Connect the upper hook of the manual chain hoist (adjustment unit 8) to the output end of the digital display tension gauge. Connect the lower hook of the manual chain hoist to the end of the bearing component 53 in the lower counterweight loading unit 5 through the first shackle 54. Check the connection status of the upper force transmission unit 6, load monitoring unit 7, adjustment unit 8 and lower counterweight loading unit 5 in sequence. After confirming that all connection parts are firm, build a complete slide beam load test system.

[0051] S7. Slowly operate the manual chain hoist to tighten the wire rope connector 61, so that the entire slide beam load test system is under tension. The digital tensile tester displays the test load value in real time. Gradually increase the load using a graded loading method. The graded nodes are 20kN (25% of safe working load), 80kN (100% of safe working load), and 100kN (calibration test load). After each graded node, stop loading and hold the load for 2 minutes. Observe the structural status of the deck segment 1, slide beam 2, deck support unit 3, and structural reinforcement unit 4, and check for any abnormalities such as deformation, displacement, or abnormal noise. When the load reaches the 100kN calibration test load, hold the load for 5 minutes and continuously monitor the load value through the digital tensile tester. At the same time, observe the stability of each structure. In this embodiment, there are no abnormalities in each structure. It is determined that the load-bearing capacity of slide beam 2 has reached the calibration standard, and the load test of slide beam 2 is completed. After the test, slowly loosen the manual chain hoist to unload the test load, disassemble each test unit in sequence, and recycle and reuse them.

[0052] Example 3 The difference between this embodiment and Embodiments 1 and 2 is that: 1. The deck support unit 3 adopts temporary steel structure support columns, with a total of 6 columns. According to the structural characteristics of the deck section 1, the columns are not uniformly arranged. After the deck section 1 is lifted, the distance between the bottom of the lower flange of the slide beam 2 and the ground is 4.5 meters. 2. The cantilever beam reinforcement support in structural reinforcement unit 4 adopts a steel support frame bolted to the deck beam, which is fixedly connected to the bottom of the cantilever beam by bolts to form a more stable reinforcement support; 3. The load monitoring unit 7 uses a tension sensor, which is linked with the controller 9 to realize wireless transmission of tension data. The adjustment unit 8 uses an electric chain hoist, which is automatically controlled by the controller 9 to realize fully automatic graded loading and holding of load. 4. The calibration test load of slide beam 2 is 500kN, the safe working load is 400kN, and the graded loading nodes are 100kN (25% of the safe working load), 400kN (100% of the safe working load), and 500kN (calibration test load). When the load reaches 500kN, it is held for 5 minutes. If there are no abnormalities in any structure, the test is deemed qualified.

[0053] The fully automatic control method in this embodiment replaces manual operation, further improving the accuracy of load control and test efficiency, and is suitable for load tests on the slide beam 2 with large loads.

[0054] The sliding beam load testing system and method of the present invention achieves standardized ground load testing through modular and detachable unit design, completely solving the interference problem of traditional processes, while improving the accuracy, safety and adaptability of the test. It can be widely used in the load testing of sliding beams of steel structure products such as marine oil modules and prefabricated modules, and has high engineering practical value.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A load testing system for a sliding beam, characterized in that, include: Deck sections, slipway beams, deck support units, structural reinforcement units, upper force transmission units, lower counterweight loading units, load monitoring units, and adjustment units; At least one slide beam is installed at the lower part of the deck segment; The deck support unit is located below the deck segment and is used to lift the deck segment as a whole, so that an operating space is formed between the bottom of the lower flange of the slide beam and the ground. The structural reinforcement unit is disposed on the deck segment corresponding to the local weak structure of the slide beam, and is used to provide temporary reinforcement support for the slide beam; The lower counterweight loading unit is set on the ground directly below the test point of the slide beam to provide the reaction load required for the test; The upper force transmission unit is connected between the test point of the slide beam and the lower counterweight loading unit, and is used to transmit tensile force; The load monitoring unit is connected in series with the upper force transmission unit and is used to monitor and display the tensile force value in real time. The adjustment unit is connected in series with the upper force transmission unit and is used to actively adjust and maintain the tension applied to the test point of the slide beam.

2. The slide beam load testing system according to claim 1, characterized in that, The structural reinforcement unit includes at least one set of cantilever beam reinforcement supports, which are height-adjustable support members and are located at the bottom of the cantilever beams formed by the segmentation of the deck.

3. The slide beam load testing system according to claim 1, characterized in that, The lower counterweight loading unit includes sleepers, a bearing member, a counterweight block, and a first shackle. The sleepers are laid on the hardened ground directly below the test measuring point of the slide beam. The bearing member is placed on the upper end of the sleepers to support the counterweight block. The end of the bearing member is connected to the adjustment unit through the first shackle.

4. The slide beam load testing system according to claim 3, characterized in that, The counterweights are stacked inside the support member, and a flexible protective member is provided at the contact corner between the support member and the counterweights.

5. The slide beam load testing system according to claim 1, characterized in that, The upper force transmission unit includes a connector and a second shackle. One end of the connector is connected to the slide beam, and the other end of the connector is connected to the input end of the load monitoring unit through the second shackle.

6. The slide beam load testing system according to claim 1, characterized in that, The load monitoring unit uses a force gauge or a force sensor.

7. The slide beam load testing system according to claim 1, characterized in that, It also includes a controller, the input of which is electrically connected to the output of the load monitoring unit, and the output of which is electrically connected to the adjustment unit.

8. A method for testing the load of a slide beam using the slide beam load testing system as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Prefabricated deck panels are segmented, and a slide beam is installed at the lower part of the deck panel segments; S2. The deck section is raised as a whole by the deck support unit so that the bottom of the lower flange of the slide beam is at a preset safe height from the ground. S3. The slide beam is reinforced using structural strengthening units; S4. Connect one end of the upper force transmission unit to the test measuring point of the slide beam, and the other end to the input end of the load monitoring unit to realize the vertical transmission of the test force. S5. Arrange a lower counterweight loading unit directly below the test measuring point of the slide beam to form a load-bearing foundation; S6. Connect one end of the adjustment unit to the output end of the load monitoring unit and the other end to the lower counterweight loading unit to build a complete slide beam load test system. S7. Operate the adjustment unit to tighten the upper force transmission unit, so that the slide beam load test system is in a taut and stressed state. Monitor the test load value in real time through the load monitoring unit, gradually increase the load to the target value, and observe the stability of the structure at the preset load node to complete the slide beam load test.

9. The method for testing the load on a slide beam according to claim 8, characterized in that, In step S7, the load is gradually increased using a graded loading method, and the load is gradually increased to the target value in several stages, with the load held for a predetermined time at each stage.

10. The method for testing the load on a slide beam according to claim 8, characterized in that, The preset safety height is 3 to 4.5 meters.

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