Steel support anti-falling safety mechanism and construction method thereof

Abstract

The invention discloses a steel support anti-falling safety mechanism and a construction method thereof.The steel support anti-falling safety mechanism comprises two sets of hooking components, each hooking component comprises a fixing plate, a supporting plate and a connecting support, the supporting plates are perpendicularly arranged on the fixing plates, the connecting supports are used for connecting the fixing plates and the supporting plates, and the supporting plates are arranged on the fixing plates; a key-shaped hole is formed in the fixing plate piece, and a clamping piece is arranged on the fixing plate piece. According to the hanging component, the hanging component is tightly clamped with the enclosing purlin through the clamping groove and is further stabilized by being matched with the clamp, accidental falling of the steel support caused by loose connection is effectively prevented, the steel strand inhaul cable and the anchorage device of the hanging component are combined, reliable lifting and limiting effects are provided for the steel support from the lower portion, the safety of a construction site is greatly improved, and the safety of the construction site is improved. And casualties and engineering accident risks caused by falling of the steel support are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure anti-falling structures, and in particular to a steel support anti-falling safety mechanism and a construction method thereof. Background Art

[0002] In the traditional steel support structure system, the connection method between the steel support and the steel purlin is relatively simple, mostly relying on ordinary bolts or welding and other fixing methods. However, these conventional connection methods have exposed many defects in complex engineering environments. For example, during the long-term construction process, due to the settlement and displacement changes of the soil around the foundation pit, as well as the influence of factors such as vibration and impact during the construction process, ordinary bolt connections are prone to loosening, resulting in reduced stability of the steel support and the risk of falling. Although the welded connection has a high initial strength, it lacks flexibility in later maintenance, adjustment, and response to dynamic load changes. Once small cracks or damage appear in the welding part, they may expand rapidly, endangering the safety of the entire steel support system.

[0003] In addition, traditional technical means are often not accurate and effective enough for the displacement control of steel supports in the vertical direction. The lack of specially designed anti-fall and displacement limiting devices may cause large vertical displacements of steel supports when subjected to unexpected loads or uneven soil settlement, thereby destroying the integrity of the foundation pit retaining structure and causing serious accidents such as foundation pit collapse. Therefore, there is an urgent need for an innovative steel support anti-fall safety mechanism and a corresponding construction method to solve the problems of unstable steel support connection, poor anti-fall performance, and insufficient vertical displacement control in the prior art, so as to ensure the safe and efficient construction of foundation pit projects and improve the overall quality and safety of construction projects. Therefore, a steel support anti-fall safety mechanism and its construction method are proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a steel support anti-fall safety mechanism and a construction method thereof to address the above-mentioned deficiencies, so as to achieve safe and efficient construction of foundation pit projects and improve the overall quality and safety of construction projects.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a steel support anti-fall safety mechanism, comprising:

[0006] The hanging components are in two groups, and the hanging components include a fixed plate, a supporting plate and a connecting bracket, the supporting plate is vertically arranged on the fixed plate, the connecting bracket is used to connect the fixed plate and the supporting plate, a key-shaped hole is opened on the fixed plate, and a clamping member is arranged on the fixed plate;

[0007] A clamp, wherein the clamp is arranged on the hanging member through a key-shaped hole, and the hanging member is fixed on the surrounding purlin through the clamp and the clamping member;

[0008] A suspension component, the suspension component includes a steel strand cable and an anchor, a limit hole is provided on the support plate, the steel strand cable is fixed in the limit hole on the support plate through the anchor, and the steel strand cable is used to bear the steel support;

[0009] A fixed weldment, wherein the fixed weldment is fixed on the steel pile plate;

[0010] A basket bolt, wherein connecting hooks are arranged at both ends of the basket bolt, and the basket bolt is connected to a fixed weldment and a hanging component through the connecting hooks.

[0011] Furthermore, the support plate is provided with a plurality of groups of limiting holes, and the plurality of groups of limiting holes are equidistantly distributed;

[0012] The key-shaped hole is in the shape of an elongated strip.

[0013] Furthermore, the clamp comprises an adjusting bolt, an elastic washer, a slider and a pressing plate, wherein the slider is located in the key-shaped hole and slides vertically to adjust the position of the clamp;

[0014] A threaded hole is provided in the slider, and the threaded hole is matched with the thread of the adjusting bolt;

[0015] The clamping plate is provided with a through hole, the elastic washer is located between the slider and the clamping plate, the adjusting bolt passes through the clamping plate, the elastic washer and the slider, and the adjusting bolt cooperates with the slider to fix the position of the clamp.

[0016] Furthermore, the clamping piece is arranged at the bottom of a side facing the surrounding purlin, and a clamping groove adapted to the surrounding purlin is arranged in the clamping piece.

[0017] Furthermore, the adjusting bolt is sleeved with a spring which contacts the clamping plate, and the spring is used to provide an axial preload force.

[0018] Furthermore, the fixed weldment is welded to the steel pile plate, one end of the basket bolt is connected to the fixed weldment through a steel wire rope, and the other end of the basket bolt is connected to the hanging component through the key-shaped hole through the steel wire rope, and the basket bolt is used to provide tension to the limiting hole.

[0019] Another technical solution to be described in the present invention is: a construction method of a steel support anti-fall safety mechanism, comprising the following steps:

[0020] S1. Construction of the main structure of the foundation pit: complete the construction of steel sheet piles, the construction of purlins and the hoisting and positioning of steel supports according to the design requirements;

[0021] S2. Installation of hanging components: adjust the adjusting bolts of the clamp to make the clamp in a relaxed and lifted state, fit the steel plate of the hanging component in the vertical direction with the surrounding purlin, and then make the card slot at the bottom of the hanging component snap with the bottom of the surrounding purlin, lower the clamp and tighten the adjusting bolts to complete the installation of the hanging component;

[0022] S3. Installation of hanging components: prepare steel strands of appropriate length, pass the two ends of the steel strands through the limit holes opened on the hanging components, and reserve enough anchoring distance. Anchor the steel strand cables to the hanging components through anchors so that the two form a whole;

[0023] S4. Installation of turnbuckle bolts: Weld the fixed weldment to the corresponding position on the surface of the steel sheet pile according to the position of the steel support and the hanging component, prepare two sections of steel wire rope with appropriate length, one section of steel wire rope is tied to the fixed weldment and connected to the turnbuckle bolt, and the other section of steel wire rope is passed through the key-shaped hole and tied to the hanging component and connected to the turnbuckle bolt, and adjust the turnbuckle bolt to generate tension and play a pulling role;

[0024] S5. Quality inspection: Carry out quality inspection on each structure of the connected anti-fall mechanism, including appearance inspection, dimension measurement and mechanical property test of the connection parts, to ensure that the connection quality meets the design requirements.

[0025] The present invention has the following beneficial effects:

[0026] 1. Excellent anti-falling performance. The hanging components are tightly connected with the purlins through the slots and further stabilized with the clamps, effectively preventing the steel support from accidentally falling due to loose connections. The steel strand cable and anchor combination of the hanging components provide reliable lifting and limiting effects on the steel support from below, greatly improving the safety of the construction site and reducing the risk of casualties and engineering accidents caused by the falling of steel supports;

[0027] 2. Reliable connection stability. The key-shaped holes and limit holes designed on the steel plate enable the precise installation of the fixture and the suspension components. When the components work together, the forces are evenly and reasonably applied, effectively avoiding the connection failure caused by local stress concentration. The spring at one end of the adjusting bolt has the characteristics of preventing loosening and compensating the axial preload force. It can automatically adapt to the changes in preload force caused by factors such as material deformation and temperature changes during long-term use, always maintain the tightness of the connection, and ensure the reliability and durability of the entire steel support connection system.

[0028] 3. Good adaptability and adjustability. The design of the slots and fixtures of the hanging components enables it to adapt to steel purlins of different specifications and shapes. It has a wide range of applicability and is easy and quick to install and adjust, reducing the construction troubles caused by material differences and improving construction efficiency. The slider in the fixture can slide vertically in the key-shaped hole, and the height position of the fixture can be flexibly adjusted according to actual installation requirements, which is convenient for accurate installation and positioning of steel supports under different working conditions.

[0029] 4. The setting of the basket bolt further enhances the adjustability of the entire mechanism. By adjusting the tension of the basket bolt, the stress state of the steel support can be fine-tuned according to the actual situation of the project, so that it can better adapt to various complex stress changes in the foundation pit support process and optimize the mechanical properties of the entire foundation pit support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the implementation structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 3 It is a partial side structural schematic diagram of the present invention;

[0033] Figure 4 It is a side schematic diagram of the overall structure of the present invention;

[0034] Figure 5 It is an exploded schematic diagram of the clamp structure of the present invention;

[0035] In the figure:

[0036] 01. Steel pile board; 02. Purlin; 03. Steel support;

[0037] 1. Hanging member; 11. Fixing plate; 111. Key hole; 112. Snap-on member; 12. Supporting plate; 121. Limiting hole; 13. Connecting bracket;

[0038] 2. Clamp; 21. Adjusting bolt; 211. Spring; 22. Elastic washer; 23. Slider; 24. Pressing plate;

[0039] 3. Suspension components; 31. Steel strand cables; 32. Anchors;

[0040] 4. Fix the weldment;

[0041] 5. Turnbuckle bolt. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-5 The present invention discloses a steel support anti-fall safety mechanism, comprising:

[0044] The hanging member 1 includes two groups of hanging members 1, and the hanging member 1 includes a fixing plate 11, a supporting plate 12 and a connecting bracket 13. The supporting plate 12 is vertically arranged on the fixing plate 11. The connecting bracket 13 is used to connect the fixing plate 11 and the supporting plate 12. The fixing plate 11 is provided with a key-shaped hole 111, and the fixing plate 11 is provided with a clamping member 112;

[0045] A clamp 2, wherein the clamp 2 is disposed on the hanging member 1 through a key-shaped hole 111, and the hanging member 1 is fixed to the surrounding purlin 02 through the clamp 2 and a clamping member 112;

[0046] The suspension member 3 includes a steel strand cable 31 and an anchor 32. A limit hole 121 is provided on the support plate 12. The steel strand cable 31 is fixed in the limit hole 121 on the support plate 12 through the anchor 32. The steel strand cable 31 is used to bear the steel support 03.

[0047] A fixed weldment 4, wherein the fixed weldment 4 is fixed on the steel pile plate 01;

[0048] The turnbuckle bolt 5 has connecting hooks at both ends thereof, and the turnbuckle bolt 5 is connected and fixed to the weldment 4 and the hanging component 1 through the connecting hooks.

[0049] Furthermore, the support plate 12 is provided with a plurality of groups of limiting holes 121, and the plurality of groups of limiting holes 121 are equidistantly distributed;

[0050] The key-shaped hole 111 is in an elongated strip shape.

[0051] In this embodiment, the hanging member 1 is hung and fixed on the purlin 02. The hanging member 1 is welded by mutually perpendicular steel plates, and connecting brackets 13 are welded between the steel plates to improve the overall bearing capacity; the steel plates are respectively provided with key-shaped holes 11 and limit holes 12 at specified positions according to their functions. The key-shaped holes 11 provide installation space for the clamp 2, and the limit holes 12 are arranged side by side in a specified number according to the designed distance to facilitate the installation of the hanging member 3.

[0052] Furthermore, the clamp 2 includes an adjusting bolt 21, an elastic washer 22, a slider 23 and a pressing plate 24, and the slider 23 is located in the key-shaped hole 111 and slides vertically to adjust the position of the clamp 2;

[0053] The slider 23 is provided with a threaded hole 231, and the threaded hole 231 is adapted to the thread of the adjusting bolt 21;

[0054] The clamping plate 24 is provided with a through hole, the elastic washer 22 is located between the slider 23 and the clamping plate 24, the adjusting bolt 21 passes through the clamping plate 24, the elastic washer 22 and the slider 23, and the adjusting bolt 21 cooperates with the slider 23 to fix the position of the clamp 2.

[0055] It should be further explained that the clamping member 112 is arranged at the bottom of one side facing the surrounding purlin 02 , and a clamping groove adapted to the surrounding purlin 02 is arranged in the clamping member 112 .

[0056] In this embodiment, the clamping member 112 cooperates with the clamp 2 to fix the hanging member 1, thereby improving the stability of the connection and avoiding the failure that may occur when the clamp 2 is set alone.

[0057] It should be further explained that a spring 211 is sleeved on the adjusting bolt 21 and contacts the pressing plate 24 , and the spring 211 is used to provide an axial preload force.

[0058] Specifically, the fixed weldment 4 is welded on the steel pile plate 01, one end of the basket bolt 5 is connected to the fixed weldment 4 through a steel wire rope, and the other end of the basket bolt 5 is connected to the hanging component 1 through the key-shaped hole 111 through the steel wire rope. The basket bolt 5 is used to provide tension to the limiting hole 121. Through the above-mentioned structural setting, the basket bolt 5 can be adjusted to play a pulling role.

[0059] In this embodiment, the suspension member 3 is composed of a steel wire rope 31 and an anchor 32. The steel wire rope 31 is suspended below the steel support 03, and both ends pass through the limiting holes 121 and are anchored to the hanging member 1 as a whole through the anchor 32 to prevent the steel support 8 from falling or having a large vertical displacement, thereby improving the stability of the enclosing structure and the supporting structure.

[0060] Finally, it should be noted that the specific construction steps are as follows:

[0061] S1. Construction of the main structure of foundation pit support: complete the placement of steel sheet piles 01, the construction of purlins 02 and the hoisting and positioning of steel supports 03 according to design requirements;

[0062] S2, installation of the hanging member: adjust the adjusting bolt 21 of the clamp 2 so that the clamp 2 is in a relaxed and lifted state, fit the steel plate of the hanging member 1 in the vertical direction with the surrounding purlin 02, and then make the clamping groove 13 at the bottom of the hanging member 1 engage with the bottom of the surrounding purlin 02, lower the clamp 2 and tighten the adjusting bolt 21 to complete the installation of the hanging member 1;

[0063] S3, installation of the hanging member: prepare a steel strand 31 of appropriate length, pass both ends of the steel strand 31 through the limiting holes 11 provided on the hanging member 1, and reserve a sufficient anchoring distance, and anchor the steel strand cable 31 to the hanging member 1 through the anchor 32 so that the two form a whole;

[0064] S4. Installation of turnbuckle bolts: Weld the fixed weldment 4 to the corresponding position on the surface of the steel sheet pile 01 according to the position of the steel support 03 and the hanging member 1, prepare two sections of steel wire ropes of appropriate length, one section of the steel wire rope is tied to the fixed weldment 4 and connected to the turnbuckle bolt 5, and the other section of the steel wire rope passes through the key-shaped hole 11 and is tied to the hanging member 1 and connected to the turnbuckle bolt 5, and adjust the turnbuckle bolt 5 to generate tension and play a pulling role;

[0065] S5. Quality inspection: Carry out quality inspection on each structure of the connected anti-fall mechanism, including appearance inspection, dimension measurement and mechanical property test of the connection parts, to ensure that the connection quality meets the design requirements.

[0066] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0067] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0068] In addition, "plurality" means two or more.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel support anti-fall safety mechanism, characterized in that: include: A hanging component (1), wherein the hanging components (1) are in two groups, the hanging components (1) comprising a fixing plate (11), a supporting plate (12) and a connecting bracket (13), the supporting plate (12) being vertically arranged on the fixing plate (11), the connecting bracket (13) being used to connect the fixing plate (11) and the supporting plate (12), the fixing plate (11) being provided with a key-shaped hole (111), and the fixing plate (11) being provided with a clamping component (112); A clamp (2), wherein the clamp (2) is arranged on the hanging component (1) through a key-shaped hole (111), and the hanging component (1) is fixed to the surrounding purlin (02) through the clamp (2) and a clamping member (112); A suspension component (3), the suspension component (3) comprising a steel strand cable (31) and an anchor (32), a limiting hole (121) being provided on the support plate (12), the steel strand cable (31) being fixed in the limiting hole (121) on the support plate (12) through the anchor (32), and the steel strand cable (31) being used to bear the steel support (03); A fixed weldment (4), wherein the fixed weldment (4) is fixed on the steel pile plate (01); A basket bolt (5), wherein both ends of the basket bolt (5) are provided with connecting hooks, and the basket bolt (5) is connected to a fixed weldment (4) and a hanging component (1) via the connecting hooks.

2. A steel support anti-fall safety mechanism according to claim 1, characterized in that: The support plate (12) is provided with a plurality of groups of limiting holes (121), and the plurality of groups of limiting holes (121) are distributed at equal intervals; The key-shaped hole (111) is in the shape of an elongated strip.

3. A steel support anti-fall safety mechanism according to claim 2, characterized in that: The clamp (2) comprises an adjusting bolt (21), an elastic washer (22), a slider (23) and a pressing plate (24); the slider (23) is located in the key-shaped hole (111) and slides vertically to adjust the position of the clamp (2); The slider (23) is provided with a threaded hole (231), and the threaded hole (231) is adapted to the thread of the adjusting bolt (21); The clamping plate (24) is provided with a through hole, the elastic washer (22) is located between the slider (23) and the clamping plate (24), the adjusting bolt (21) passes through the clamping plate (24), the elastic washer (22) and the slider (23), and the adjusting bolt (21) cooperates with the slider (23) to fix the position of the clamp (2).

4. A steel support anti-fall safety mechanism according to claim 1, characterized in that: The clamping piece (112) is arranged at the bottom of a side facing the surrounding purlin (02), and a clamping groove matching the surrounding purlin (02) is arranged in the clamping piece (112).

5. A steel support anti-fall safety mechanism according to claim 2, characterized in that: The adjusting bolt (21) is sleeved with a spring (211) that contacts the pressing plate (24), and the spring (211) is used to provide an axial preload force.

6. A steel support anti-fall safety mechanism according to claim 1, characterized in that: The fixed weldment (4) is welded to the steel pile plate (01), one end of the basket bolt (5) is connected to the fixed weldment (4) via a steel wire rope, and the other end of the basket bolt (5) is connected to the hanging component (1) via a steel wire rope passing through the key-shaped hole (111), and the basket bolt (5) is used to provide tension to the limiting hole (121).

7. A construction method for a steel support anti-fall safety mechanism according to claims 1-6, characterized in that: The following steps are involved: S1. Construction of the main structure of the foundation pit: Complete the construction of steel sheet piles (01), the construction of purlins (02) and the hoisting and positioning of steel supports (03) according to the design requirements; S2, installation of the hanging component: adjust the adjusting bolt (21) of the clamp (2) so that the clamp (2) is in a relaxed and lifted state, fit the steel plate of the hanging component (1) in the vertical direction with the surrounding purlin (02), then make the clamping groove (13) at the bottom of the hanging component (1) engage with the bottom of the surrounding purlin (02), lower the clamp (2) and tighten the adjusting bolt (21), and complete the installation of the hanging component (1); S3, installation of the hanging component: prepare a steel strand (31) of appropriate length, pass the two ends of the steel strand (31) through the limiting holes (11) provided on the hanging component (1), and reserve a sufficient anchoring distance, and anchor the steel strand cable (31) to the hanging component (1) through the anchor (32) so that the two form a whole; S4. Installation of the turnbuckle bolts: Weld the fixed weldment (4) to the corresponding position on the surface of the steel sheet pile (01) according to the position of the steel support (03) and the hanging member (1), prepare two sections of steel wire rope of appropriate length, one section of the steel wire rope is tied to the fixed weldment (4) and connected to the turnbuckle bolt (5), and the other section of the steel wire rope passes through the key-shaped hole (11) and is tied to the hanging member (1) and connected to the turnbuckle bolt (5), and adjust the turnbuckle bolt (5) to generate tension and play a pulling role; S5. Quality inspection: Carry out quality inspection on each structure of the connected anti-fall mechanism, including appearance inspection, dimension measurement and mechanical property test of the connection parts, to ensure that the connection quality meets the design requirements.

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