A temporary restraint device for steel support

Abstract

The utility model discloses a temporary restraint device for steel support, including an I-shaped steel crossbeam and an I-shaped steel cap beam arranged in parallel up and down, and a plurality of I-shaped steel supports are arranged side by side and at intervals on the top of the I-shaped steel crossbeam; the I-shaped steel cap beam at least spans two adjacent I-shaped steel supports, and is fixedly connected to each I-shaped steel support through a steel force transmission member; the I-shaped steel cap beam is fixed and locked to the I-shaped steel crossbeam through a steel beam clamp device. The beneficial effects of the utility model are: simple structure, easy installation, each component is firmly installed, the overall rigidity is large, and the deformation of the foundation pit steel support can be effectively limited; the connection node is reasonably configured, and the contact surface between the steel force transmission member and the I-shaped steel support adopts a polytetrafluoroethylene plate, which restrains the arch deformation of the steel support while allowing its horizontal displacement, has a good finished product protection effect, and improves the quality of the project; the installation modulus of the connector is large and can be adjusted and installed according to the specifications of the foundation pit steel support.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a temporary restraining device for a steel support. Background Art

[0002] During the use of the foundation pit steel support, the two ends of the steel support are affected by the high lateral pressure of the soil and the lateral displacement of the slope soil, which often causes arching deformation in the mid-span. When this deformation exceeds a certain limit, it will cause local and overall compressive instability of the foundation pit steel support, seriously affecting the stress structure system of the foundation pit and greatly increasing the probability of foundation pit collapse. When the deformation of the foundation pit steel support is too large, the following methods are usually used in the current engineering field:

[0003] (1) Measures such as adding ribs at the connection between soil and support are taken to strengthen the support and avoid local instability and deformation such as bending and torsion.

[0004] (2) If the large horizontal spacing between supports causes excessive bending deformation of the support rods, temporary steel supports should be appropriately added between the supports to increase the stiffness of the support system.

[0005] The above methods are all remedial measures and cannot achieve preventive effects. In addition, the treatment process takes a long time and the consumable materials are one-time investments and cannot be used in a cyclical manner.

[0006] Therefore, there is an urgent need for a restraint device that can solve the problem of stress deformation of steel supports during use. Summary of the invention

[0007] In order to overcome the above defects in the prior art, a temporary restraining device for steel support is designed to limit deformation, reduce material usage, and have good versatility and can be recycled.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A temporary restraint device for steel supports, characterized in that: it includes an I-beam crossbeam and an I-beam cap beam arranged in parallel up and down, a plurality of I-beam supports are arranged side by side and at intervals on the top of the I-beam crossbeam; the I-beam cap beam spans at least two adjacent I-beam supports, and is fixedly connected to each of the I-beam supports through a steel force transmission member; the I-beam cap beam is fixed and locked to the I-beam crossbeam through a steel beam clamp device.

[0010] Preferably, the I-beam cross beam and the I-beam support are perpendicular to each other, and the top wing plates of each I-beam support are on the same horizontal plane.

[0011] Preferably, an I-shaped steel force transmission member is arranged on the top wing plate of each I-beam support, and the steel force transmission member is located at the center of the contact surface between the I-beam cross beam and the I-beam support, and the top surface of the steel force transmission member is fixedly connected to the lower wing plate of the I-beam cap beam by a connecting bolt assembly.

[0012] Preferably, a polytetrafluoroethylene plate is provided between the bottom surface of the steel force transmission member and the top wing plate of the I-beam support, and the bottom surface of the steel force transmission member is located within the area defined by the projection of the polytetrafluoroethylene plate on the top wing plate of the I-beam support.

[0013] Preferably, there are two steel beam clamp devices, which are respectively arranged at the two opposite ends of the I-beam crossbeam along the length direction; each of the steel beam clamp devices includes a U-shaped clamp and a sheet-like steel plate gasket, the clamp includes straight rods on both sides and a bottom rod located at the middle and lower ends of the straight rods, and the straight rods are integrally formed and connected with the bottom rod; the upper parts of the two straight rods are provided with threads; two bolt holes are provided on the steel plate gasket, and the interval between the two bolt holes on the same steel plate gasket is matched with the opening width formed by the two straight rods on the same clamp, the clamp is sleeved on the outside of the I-beam crossbeam and the I-beam cap beam, the upper end of the straight rod passes through the corresponding bolt holes on the steel plate gasket and is connected with a fastening nut, so that the ends of the I-beam crossbeam and the I-beam cap beam are jointly constrained in the steel beam clamp device.

[0014] Preferably, the web of the I-shaped steel cross beam and the web of the I-shaped steel cap beam are on the same vertical plane.

[0015] Preferably, the web of the I-beam support and the web of the steel force transmitting member are on the same vertical plane.

[0016] The beneficial effects of the utility model are:

[0017] 1. The structure is simple and easy to install. The steel beam hoop device combines the I-shaped steel beam, I-shaped steel cap beam, steel force transmission parts and I-shaped steel support into a whole. Each component is firmly installed, the overall rigidity is large, and the deformation of the foundation pit steel support can be effectively limited;

[0018] 2. The connection nodes are reasonably configured. The contact surface between the steel force transmission parts and the I-beam support is made of polytetrafluoroethylene plate, which restrains the arching deformation of the steel support while allowing its horizontal displacement. It also has a good finished product protection effect and improves the project quality.

[0019] 3. It is recyclable and easy to install and dismantle. It can greatly improve the construction speed of the construction site, reduce labor consumption, reduce project costs, and meet the requirements of green construction.

[0020] 4. The installation modulus of the connector is highly adjustable. The thread on the U-shaped clamp has a certain adjustable range and can be adjusted and installed according to the specifications of the foundation pit steel support. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a temporary restraining device for steel support according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation of a temporary restraint device according to an embodiment of the utility model;

[0023] Figure 3 for Figure 2 A partial enlarged view of .

[0024] In the figure: I-beam crossbeam 1, I-beam cap beam 2, I-beam support 3, steel force transmission member 4, steel beam clamp device 5, clamp 51, steel plate gasket 52, straight rod 511, bottom rod 512, fastening nut 53, polytetrafluoroethylene plate 6, connecting bolt assembly 7. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0026] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0027] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0032] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0033] The utility model describes a temporary restraint device for steel supports, comprising an I-beam crossbeam 1 and an I-beam cap beam 2 which are arranged in parallel up and down, wherein a plurality of I-beam supports 3 are arranged side by side and at intervals on the top of the I-beam crossbeam 1; the I-beam cap beam 2 at least spans across two adjacent I-beam supports 3, and is fixedly connected to each of the I-beam supports 3 via a steel force transmission member 4; the I-beam cap beam 2 is fixed and locked to the I-beam crossbeam 1 via a steel beam clamp device 5.

[0034] In some embodiments of the present invention, the I-shaped steel beam 1 and the I-shaped steel support 3 are perpendicular to each other, and the top wing plates of each I-shaped steel support 3 are on the same horizontal plane.

[0035] In some embodiments of the utility model, an I-shaped steel force transmission member 4 is arranged on the top wing plate of each I-beam support 3, and the steel force transmission member 4 is located at the center of the contact surface between the I-beam cross beam 1 and the I-beam support 3. The top surface of the steel force transmission member 4 is fixedly connected to the lower wing plate of the I-beam cap beam 2 through a connecting bolt assembly 7.

[0036] In some embodiments of the present invention, a polytetrafluoroethylene plate 6 is arranged between the bottom surface of the steel force transmitting member 4 and the top wing plate of the I-beam steel support 3, and the bottom surface of the steel force transmitting member 4 is located within the area defined by the projection of the polytetrafluoroethylene plate 6 on the top wing plate of the I-beam steel support 3.

[0037] In some embodiments of the utility model, there are two steel beam clamp devices 5, which are respectively arranged at two opposite ends of the I-shaped steel cross beam 1 along the length direction; each of the steel beam clamp devices 5 includes a U-shaped clamp 51 and a sheet-shaped steel plate gasket 52, and the clamp 51 includes straight rods 511 on both sides and a bottom rod 512 located at the middle lower end of the straight rod 511, and the straight rod 511 and the bottom rod 512 are integrally formed and connected; the upper parts of the two straight rods 511 are provided with threads; The steel plate gasket 52 is provided with two bolt holes, and the interval between the two bolt holes on the same steel plate gasket 52 is adapted to the opening width formed by the two straight rods 511 on the same clamp 51. The clamp 51 is sleeved on the outside of the I-beam cross beam 1 and the I-beam cap beam 2, and the upper end of the straight rod 511 passes through the corresponding bolt holes on the steel plate gasket 52 and is connected to the fastening nut 53, so that the ends of the I-beam cross beam 1 and the I-beam cap beam 2 are jointly constrained in the steel beam clamp device 5.

[0038] In some embodiments of the present invention, the web of the I-shaped steel cross beam 1 and the web of the I-shaped steel cap beam 2 are on the same vertical plane.

[0039] In some embodiments of the present invention, the web of the I-shaped steel support 3 and the web of the steel force transmitting member 4 are on the same vertical plane.

[0040] The assembly and installation of a steel support temporary restraint device described in the utility model includes the following steps:

[0041] Step 1: Install the I-beam steel support 3 and the I-beam steel beam 1 according to the foundation pit support construction plan.

[0042] Step 2: Install the steel force transmission member 4 on the I-shaped steel support 3, and place a polytetrafluoroethylene plate 6 between the two. It is necessary to ensure that the polytetrafluoroethylene plate 6 can completely cover the bottom surface of the steel force transmission member 4. The installation position of the steel force transmission member 4 is at the center of the contact surface between the I-shaped steel support 3 and the I-shaped steel crossbeam 1. The web of the steel force transmission member 4 is on the same vertical plane as the web of the I-shaped steel support 3.

[0043] Step 3: Install the I-shaped steel cap beam 2 above the steel force transmission member 4. Each steel force transmission member 4 is fixedly connected to the lower wing plate of the I-shaped steel cap beam 2 by connecting bolt assemblies 7 on all sides. It is necessary to ensure that the web of the I-shaped steel cap beam 2 and the web of the I-shaped steel cross beam 1 are in the same plane;

[0044] Step 4: Install the steel plate gasket 52 above the I-beam cap beam 2, and cover the ends of the I-beam cross beam 1 and the I-beam cap beam 2 with the clamp 51. The steel plate gasket 52 and the clamp 51 are connected with the connecting bolt assembly 7, and the ends of the I-beam cross beam 1 and the I-beam cap beam 2 are constrained together in the steel beam clamp device 5.

[0045] This type of steel supports temporary restraint devices, limits deformation, reduces material usage, has good versatility and can be recycled.

[0046] The above examples are for the purpose of illustrating the embodiments disclosed by the present invention and are not to be construed as limitations of the present invention. In addition, the various modifications listed herein and the variations of methods and compositions in the invention are obvious to those skilled in the art without departing from the scope and spirit of the present invention. Although the present invention has been specifically described in conjunction with various specific preferred embodiments of the present invention, it should be understood that the present invention should not be limited to these specific embodiments. In fact, various modifications obvious to those skilled in the art as described above to obtain the invention should be included within the scope of the present invention.

Claims

1. A steel support temporary restraint device, characterized in that: It comprises an I-shaped steel cross beam (1) and an I-shaped steel cap beam (2) which are arranged in parallel up and down, wherein a plurality of I-shaped steel supports (3) are arranged side by side and at intervals on the top of the I-shaped steel cross beam (1); the I-shaped steel cap beam (2) at least spans two adjacent I-shaped steel supports (3) and is fixedly connected to each of the I-shaped steel supports (3) via a steel force transmission member (4); the I-shaped steel cap beam (2) is fixed and locked to the I-shaped steel cross beam (1) via a steel beam clamp device (5).

2. A steel support temporary restraint device according to claim 1, characterized in that: The I-shaped steel cross beam (1) and the I-shaped steel support (3) are perpendicular to each other, and the top wing plates of each I-shaped steel support (3) are located on the same horizontal plane.

3. A steel support temporary restraint device according to claim 1, characterized in that: An I-shaped steel force transmission member (4) is arranged on the top wing plate of each I-shaped steel support (3); the steel force transmission member (4) is located at the center of the contact surface between the I-shaped steel cross beam (1) and the I-shaped steel support (3); the top surface of the steel force transmission member (4) is fixedly connected to the lower wing plate of the I-shaped steel cap beam (2) via a connecting bolt assembly (7).

4. A steel support temporary restraint device according to claim 3, characterized in that: A polytetrafluoroethylene plate (6) is provided between the bottom surface of the steel force transmission member (4) and the top wing plate of the I-shaped steel support (3), and the bottom surface of the steel force transmission member (4) is located within an area defined by a projection of the polytetrafluoroethylene plate (6) on the top wing plate of the I-shaped steel support (3).

5. A steel support temporary restraint device according to claim 1, characterized in that: There are two steel beam clamp devices (5), which are respectively arranged at two opposite ends of the I-shaped steel cross beam (1) along the length direction; each of the steel beam clamp devices (5) comprises a U-shaped clamp (51) and a sheet-shaped steel plate gasket (52); the clamp (51) comprises straight rods (511) on both sides and a bottom rod (512) located at the middle lower end of the straight rod (511); the straight rod (511) and the bottom rod (512) are integrally formed and connected; the upper parts of the two straight rods (511) are provided with threads; the steel plate gasket Two bolt holes are provided on the steel plate gasket (52), and the interval between the two bolt holes on the same steel plate gasket (52) is adapted to the opening width formed by the two straight rods (511) on the same clamp (51), and the clamp (51) is sleeved on the outside of the I-beam cross beam (1) and the I-beam cap beam (2), and the upper end of the straight rod (511) passes through the corresponding bolt holes on the steel plate gasket (52) and is connected to the fastening nut, so that the ends of the I-beam cross beam (1) and the I-beam cap beam (2) are jointly constrained in the steel beam clamp device (5).

6. A steel support temporary restraint device according to claim 1, characterized in that: The web plate of the I-shaped steel cross beam (1) and the web plate of the I-shaped steel cap beam (2) are located on the same vertical plane.

7. A steel support temporary restraint device according to claim 4, characterized in that: The web of the I-shaped steel support (3) and the web of the steel force transmission member (4) are located on the same vertical plane.

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