H-shaped steel long-span relay type online stress compensation device

By using an H-beam long-braced relay-type online stress compensation device, stress changes can be monitored and adjusted in real time, solving the problem of insufficient concrete support in the support of large-span deep foundation pits, and improving the stability and safety of the structure. It is suitable for large-span deep foundation pit projects.

CN224395574UActive Publication Date: 2026-06-23RUIMA-MARUKEN (ANHUI) CONSTRUCTION PROTECTING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIMA-MARUKEN (ANHUI) CONSTRUCTION PROTECTING TECHNOLOGY CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing large-span deep foundation pit support projects, concrete supports have long construction cycles, high costs, and serious resource waste. Rigid structures have poor adaptability, and H-beams are greatly affected by temperature changes and lack effective online compensation devices, resulting in insufficient structural safety and stability.

Method used

An H-beam long-braced relay-type online stress compensation device is adopted. Through relay-type online compensation components and servo system, stress changes are monitored and adjusted in real time. Combined with guide bracket components to prevent torsion, the stability and safety of the support system under different environmental conditions are ensured.

Benefits of technology

It improves the stability and safety of foundation pit support, reduces construction costs and environmental pollution, enhances construction efficiency and structural adaptability, and is suitable for large-span deep foundation pit projects.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of H-shaped steel long pair of support relay type online stress compensation devices, belong to foundation pit support technical field.The utility model includes brace structure assembly, the brace structure assembly includes end support block, steel support, end online compensation component, relay online compensation component;End support block one end is sequentially connected with end online compensation component, steel support, steel support is sequentially provided with multiple sections along its length direction, and relay online compensation component is arranged between two steel supports sequentially connected.The utility model passes through the dynamic adjustment function of relay online compensation component, can effectively adapt to temperature change and soil pressure fluctuation under different environmental conditions of long pair of support, avoid structural safety hazard caused by stress overrun or deficiency;With simple structure, construction is convenient, compensation is accurate, safe and reliable Advantage, applicable to large-span deep foundation pit engineering, reduce construction cost, improve the stability, security and adaptability of foundation pit support.
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Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, and more specifically, to an H-shaped steel long-bracing relay-type online stress compensation device. Background Technology

[0002] In large-span deep foundation pit support projects, rigid structures such as concrete supports or diaphragm walls are typically used for segmented pit support. However, these traditional support methods have the following problems:

[0003] 1. Long construction period and high cost: The construction process of concrete supports is complex and requires a long curing period. The demolition of concrete generates a large amount of construction waste, increasing environmental pollution and resource waste. At the same time, the use of multi-pit construction greatly increases construction costs, delays the construction period, and causes great inconvenience to construction operations.

[0004] 2. Poor adaptability of rigid structures: Concrete supports or diaphragm walls are less affected by temperature changes, but they are less adaptable to soil displacement inside the foundation pit, which can easily lead to local stress concentration and thus affect the stability of the support structure.

[0005] 3. Waste of resources and poor environmental protection: Using concrete supports as temporary support facilities requires them to be dismantled after a few months to two years, which will cause great environmental pollution and waste of social wealth.

[0006] 4. H-beam steel long bracing is greatly affected by temperature changes: Using H-beam steel long bracing to replace concrete supports is a relatively economical and efficient approach. However, due to the thermal expansion and contraction characteristics of H-beam steel, the long bracing may experience insufficient support or overload due to expansion and contraction during periods of large seasonal temperature differences. Furthermore, the stress changes caused by variations in excavation depth are not yet adequately compensated for. This significantly impacts the safety of the foundation pit. Currently, there is no mature online compensation device to dynamically adjust for these changes. Utility Model Content

[0007] 1. Technical problem to be solved by the utility model

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a relay-type online stress compensation device for H-shaped steel long bracing. This invention, through the dynamic adjustment function of the relay-type online compensation component, can effectively adapt to temperature changes and soil pressure fluctuations of the long bracing under different environmental conditions, avoiding structural safety hazards caused by excessive or insufficient stress. It has the advantages of simple structure, convenient construction, accurate compensation, and safety and reliability. It is suitable for large-span deep foundation pit projects, reducing construction costs while improving the stability, safety and adaptability of foundation pit support.

[0009] 2. Technical Solution

[0010] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0011] This utility model discloses an H-shaped steel long-braced relay-type online stress compensation device, which includes a bracing structure assembly. The two ends of the bracing structure assembly are connected to the enclosure structure, and the bottom of the bracing structure assembly is supported by a support beam.

[0012] The aforementioned bracing structure assembly includes end support blocks, steel supports, end online compensation components, and relay online compensation components;

[0013] One end of the end support block is fixed to the enclosure structure, and the other end of the end support block is connected in sequence to an end online compensation component and a steel support. The steel support is arranged in multiple sections along its length direction, and a relay online compensation component is arranged between two sequentially connected steel support sections.

[0014] The input end of the relay online compensation component is connected to a servo system.

[0015] Furthermore, the total length of the aforementioned bracing structure assembly is greater than 120 meters.

[0016] Furthermore, the supporting beam is provided with columns on its side.

[0017] Furthermore, the aforementioned bracing structure assemblies are arranged in multiple sets at intervals, and adjacent bracing structure assemblies are connected by support rods.

[0018] Furthermore, the two ends of the end online compensation component are respectively provided with connectors, and the two ends of the end online compensation component are respectively connected to the end support block and the steel support bolt through the connectors.

[0019] Furthermore, the two ends of the relay online compensation component are respectively provided with connectors, and the two ends of the relay online compensation component are respectively connected to the steel support bolts through the connectors.

[0020] Furthermore, the output ends of both the end-type online compensation component and the relay-type online compensation component are equipped with component self-locking rings.

[0021] Furthermore, an axial force sensor is provided on the side of the web of the steel support.

[0022] Furthermore, a guide bracket assembly is provided at the connection between the steel support and the beam. The guide bracket assembly includes angle steel, screw rods and fixing bolts. Multiple sets of angle steel are provided on the upper surface of the upper flange, the side of the upper flange, the side of the lower flange, and the lower surface of the lower flange of the beam. The screw rods pass through the multiple sets of angle steel from top to bottom and are locked by fixing bolts.

[0023] 3. Beneficial effects

[0024] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0025] This invention utilizes long H-beam steel bracing to reduce the amount of concrete used in foundation pit construction. The bracing structure assembly is reusable, effectively reducing construction costs, environmental pollution, and construction waste, while simultaneously accelerating construction progress and improving construction efficiency.

[0026] This utility model targets ultra-long H-beam steel bracing (length exceeding 120 meters). By setting up a relay online compensation component and its servo system, it effectively adjusts stress changes and displacement deviations caused by seasonal temperature variations or soil deformation, preventing the bracing from losing prestress or exceeding the design stress range under extreme temperature conditions, thus ensuring the long-term stability of the support system.

[0027] This invention uses a servo system to monitor the stress on the bracing in real time and automatically adjusts the elongation and prestress of the relay online compensation component to ensure that the bracing structure assembly is always in the optimal stress state. This enables the support system to adapt to complex environmental conditions, improves safety and durability, and is suitable for high-standard deep foundation pit projects.

[0028] This invention effectively prevents torsion caused by eccentric stress or temperature deformation of the long bracing by setting guide support assemblies on both sides of the relay online compensation component, thereby improving the overall rigidity and load-bearing capacity of the structure and ensuring the reliability of the foundation pit support system.

[0029] This utility model provides an innovative deep foundation pit support solution, which is particularly suitable for ultra-long span support scenarios. It can not only improve construction efficiency, but also significantly enhance engineering safety, providing new ideas for the development of deep foundation pit support technology.

[0030] This invention can adjust the stress and length changes of H-beam bracing caused by temperature and soil pressure changes in real time, thereby improving the stability and safety of foundation pit support; through the dynamic adjustment function of the relay online compensation component, it can effectively adapt to temperature changes and soil pressure fluctuations of long bracing under different environmental conditions, avoiding structural safety hazards caused by stress exceeding or falling short of limits.

[0031] This invention overcomes the shortcomings of existing technologies in temperature compensation and prestress adjustment for long-span supports. The device features simple structure, convenient construction, precise compensation, and high safety and reliability. It is suitable for large-span deep foundation pit projects, reducing construction costs while improving the safety and adaptability of foundation pit support. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a partial structural schematic diagram of the present invention;

[0034] Figure 3 This is an assembly effect diagram of the end online compensation component of this utility model;

[0035] Figure 4 This is an assembly effect diagram of the relay online compensation component of this utility model;

[0036] Figure 5 This is a structural diagram of the guide bracket assembly of this utility model.

[0037] In the diagram: 1. Bracing structure assembly; 101. End support block; 102. Steel support; 103. End online compensation component; 104. Relay online compensation component; 2. Support beam; 3. Column; 4. Connector; 5. Support tie rod; 6. Guide bracket assembly; 601. Angle steel; 602. Screw; 603. Fixing bolt; 7. Enclosure structure; 8. Servo system; 9. Component self-locking ring; 10. Axial force sensor. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0039] Example 1

[0040] from Figure 1-2 As can be seen, the H-shaped steel long-braced relay-type online stress compensation device of this embodiment includes a bracing structure assembly 1, the two ends of which are connected to the enclosure structure 7, and the bottom of the bracing structure assembly 1 is supported by a support beam 2; the support beam 2 is provided with a column 3 on its side.

[0041] The bracing structure assembly 1 includes an end support block 101, a steel support 102, an end online compensation component 103, and a relay online compensation component 104;

[0042] The components are connected to each other by high-strength bolts to form a complete compensation system;

[0043] The end online compensation components 103 are set at both ends of the bracing structure assembly 1 to adjust the initial prestress of the overall structure and adapt to the length changes caused by temperature changes.

[0044] Based on the total length of the bracing structure assembly 1, 1-3 relay online compensation components 104 are set in the middle of it. The compensation amount is dynamically adjusted by the servo system 8 to ensure that the bracing structure assembly 1 maintains a reasonable prestress level under different temperature and soil pressure changes.

[0045] One end of the end support block 101 is fixed to the enclosure structure 7, and the other end of the end support block 101 is connected in sequence to the end online compensation component 103 and the steel support 102. The steel support 102 is arranged in multiple sections along its length direction, and a relay online compensation component 104 is arranged between two sequentially connected steel support sections 102.

[0046] Multiple sets of bracing structure assemblies 1 are arranged at intervals, and the total length of each set of bracing structure assemblies 1 is greater than 120 meters. Adjacent bracing structure assemblies 1 are connected by support rods 5.

[0047] from Figure 3-4 It can be seen that the two ends of the end online compensation component 103 are respectively provided with connectors 4, and the two ends of the end online compensation component 103 are respectively bolted to the end support block 101 and the steel support 102 through the connectors 4.

[0048] The two ends of the relay online compensation component 104 are respectively provided with connectors 4, and the two ends of the relay online compensation component 104 are respectively bolted to the steel support 102 through the connectors 4.

[0049] Both the end online compensation component 103 and the relay online compensation component 104 are equipped with component self-locking rings 9 at their output ends;

[0050] Both the end online compensation component 103 and the intermediate online compensation component 104 are finished hydraulic jacks. When they are opened, the self-locking ring 9 of the rotating component achieves thread self-locking, thereby ensuring that the pressure is not lost.

[0051] The input terminal of the relay online compensation component 104 is connected to the servo system 8 via a wire;

[0052] The hydraulic pressure of the relay online compensation component 104 is sensed and fed back to the servo system 8 in real time. The servo system 8 then adjusts the displacement of the relay online compensation component 104 in real time to achieve precise control.

[0053] During the specific operation process:

[0054] First, set a fixed preload value X tons for the relay online compensation component 104, and set the amplitude X±Y tons;

[0055] When the pressure is below (XY) tons or above (X+Y) tons, the servo system 8 will adjust the oil quantity according to the oil pressure sensor, so that the pressure value tends to be between (XY) and (X+Y) tons; when the oil quantity changes, the relay online compensation component 104 will extend or shorten accordingly.

[0056] An axial force sensor 10 is installed on the side of the web of the steel support 102; the axial force sensor 10 is used to monitor the change of axial force in the steel support 102 in the bracing structure assembly 1 to achieve remote monitoring and control;

[0057] from Figure 5 As can be seen, a guide bracket assembly 6 is provided at the connection between the steel support 102 and the beam 2. The guide bracket assembly 6 includes angle steel 601, screw rod 602 and fixing bolt 603. Multiple sets of angle steel 601 are respectively provided on the upper surface of the upper flange, the side of the upper flange, the side of the lower flange, and the lower surface of the lower flange of the beam 2. The screw rod 602 passes through the multiple sets of angle steel 601 from top to bottom and is locked by the fixing bolt 603.

[0058] The guide support assembly 6 is spaced on both sides of the relay online compensation component 104 to ensure the axial stability of the steel support 102 and prevent support torsional instability caused by temperature changes or construction errors.

[0059] This invention can solve the problem of stress changes caused by thermal expansion and contraction of ultra-long steel supports due to temperature changes in existing deep foundation pit support projects, thereby improving the stability, safety and reliability of foundation pit support.

[0060] This utility model uses H-shaped steel long bracing to reduce the amount of concrete used in foundation pit construction. The bracing structure assembly 1 is reusable, which effectively reduces construction costs, environmental pollution, and construction waste, while also accelerating construction progress and improving construction efficiency.

[0061] This utility model targets ultra-long H-beam steel bracing (length exceeding 120 meters). By setting up a relay online compensation component 104 and its servo system 8, it effectively adjusts stress changes and displacement deviations caused by seasonal temperature changes or soil deformation, preventing the bracing from losing prestress or exceeding the design stress range under extreme temperature conditions, and ensuring the long-term stability of the support system.

[0062] This utility model uses a servo system 8 to monitor the stress on the bracing in real time and automatically adjusts the elongation and prestress of the relay online compensation component 104 to ensure that the bracing structure assembly 1 is always in the optimal stress state. This enables the support system to adapt to complex environmental conditions, improves safety and durability, and is suitable for high-standard deep foundation pit projects.

[0063] This invention effectively prevents torsion caused by eccentric stress or temperature deformation of the long bracing by setting guide support assemblies 6 on both sides of the relay online compensation component 104, thereby improving the overall rigidity and load-bearing capacity of the structure and ensuring the reliability of the foundation pit support system.

[0064] This utility model provides an innovative deep foundation pit support solution, which is particularly suitable for ultra-long span support scenarios. It can not only improve construction efficiency, but also significantly enhance engineering safety, providing new ideas for the development of deep foundation pit support technology.

[0065] This invention can adjust the stress and length changes of H-beam bracing caused by temperature and soil pressure changes in real time, thereby improving the stability and safety of foundation pit support; through the dynamic adjustment function of the relay online compensation component 104, it can effectively adapt to temperature changes and soil pressure fluctuations of long bracing under different environmental conditions, avoiding structural safety hazards caused by stress exceeding or falling short of limits.

[0066] This invention overcomes the shortcomings of existing technologies in temperature compensation and prestress adjustment for long-span supports. The device features simple structure, convenient construction, precise compensation, and high safety and reliability. It is suitable for large-span deep foundation pit projects, reducing construction costs while improving the safety and adaptability of foundation pit support.

[0067] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A long-braced H-beam online stress compensation device, comprising a bracing structure assembly (1), characterized in that: The two ends of the bracing structure assembly (1) are connected to the enclosure structure (7), and the bottom of the bracing structure assembly (1) is supported by the support beam (2); The bracing structure assembly (1) includes an end support block (101), a steel support (102), an end online compensation component (103), and a relay online compensation component (104). One end of the end support block (101) is fixed to the enclosure structure (7), and the other end of the end support block (101) is connected in sequence to the end online compensation component (103) and the steel support (102). The steel support (102) is arranged in multiple sections along its length direction, and a relay online compensation component (104) is arranged between two sequentially connected steel support sections (102). The input end of the relay online compensation component (104) is connected to a servo system (8).

2. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: The total length of the bracing structure assembly (1) is greater than 120 meters.

3. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: The support beam (2) is provided with a column (3) on its side.

4. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: The aforementioned bracing structure assembly (1) is provided in multiple sets at intervals, and adjacent bracing structure assemblies (1) are connected by support rods (5).

5. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: The two ends of the end online compensation component (103) are respectively provided with connectors (4), and the two ends of the end online compensation component (103) are respectively bolted to the end support block (101) and the steel support (102) through the connectors (4).

6. The H-beam long-braced relay-type online stress compensation device according to claim 5, characterized in that: The relay online compensation component (104) is provided with connectors (4) at both ends, and the two ends of the relay online compensation component (104) are bolted to the steel support (102) through the connectors (4).

7. The H-beam long-braced relay-type online stress compensation device according to claim 6, characterized in that: The output ends of the end online compensation component (103) and the relay online compensation component (104) are both provided with component self-locking rings (9).

8. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: An axial force sensor (10) is provided on the side of the web of the steel support (102).

9. The H-beam long-braced relay-type online stress compensation device according to claim 1, characterized in that: A guide bracket assembly (6) is provided at the connection between the steel support (102) and the support beam (2). The guide bracket assembly (6) includes angle steel (601), screw (602) and fixing bolt (603). Multiple sets of angle steel (601) are provided on the upper surface of the upper flange, the side of the upper flange, the side of the lower flange of the steel support (102) and the lower surface of the lower flange of the support beam (2). The screw (602) passes through the multiple sets of angle steel (601) from top to bottom and is locked by fixing bolt (603).