Reasonable-stress-based coupling beam structure for double-row steel sheet piles

Abstract

The reasonable-stress-based coupling beam structure for the double-row steel sheet piles comprises two oppositely-arranged steel sheet pile bodies, waist beam assemblies are tightly attached to the positions, close to the tops, of the side walls of the two steel sheet pile bodies, each waist beam assembly comprises two channel steel waist beams, and the backs of the channel steel waist beams are oppositely arranged; first steel plates are symmetrically welded to the positions, close to the end faces, of the two side walls of the two channel steel waist beams, and center holes are formed in the middles of the first steel plates. According to the connecting beam structure, traditional I-shaped steel is replaced by the two oppositely-welded steel channels, so that the overall strength of the connecting beam structure can be improved in the using process, the connecting firmness of the whole connecting beam structure to the double-row steel sheet piles is improved, meanwhile, the waist beams formed by welding the steel channels are welded to the two side walls of the steel sheet piles respectively, and the connecting beam structure is simple in structure and convenient to use. And the connecting beams are used for connection, so that the whole connecting beam structure is reasonable in stress during working and convenient to disassemble and assemble, and the convenience in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure application, in particular to a connecting beam structure for double-row steel sheet piles based on reasonable force. Background Art

[0002] There are generally two types of structural types for large cofferdam construction on soft soil foundations: earth-rock cofferdam and sheet pile cofferdam. The construction of a large earth dam cofferdam is difficult in terms of stability, foundation bearing capacity, anti-seepage and water-stopping, and the construction period is very long. The steel sheet pile cofferdam is small in size and has a small impact range. A double-row sheet pile structure or a lattice sheet pile structure can be used. Compared with the lattice steel sheet pile, the double-row steel sheet pile cofferdam structure has the advantages of more reliable water-stopping and convenient recycling. Its cost is generally only 1 / 3 to 1 / 2 of the same-sized lattice steel sheet pile structure. It can withstand larger deformations and has fast construction and demolition speeds. It is often the preferred cofferdam form on soft soil foundations.

[0003] When the existing connecting beam structure is installed and used for double-row steel sheet piles, it only considers the compression conditions of the front and rear rows of piles, and cannot realize the pulling effect of the rear row of piles on the front row of piles, which will cause unreasonable stress effects on the entire connecting beam structure during work, and further cause serious consequences such as tilting or tipping of the double-row steel sheet piles. Therefore, the utility model proposes a connecting beam structure for double-row steel sheet piles based on reasonable stress. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a connecting beam structure for double-row steel sheet piles based on reasonable force. By replacing the traditional I-steel with two relatively welded channel steels, the overall strength can be improved during use, thereby improving the connection firmness of the entire connecting beam structure to the double-row steel sheet piles. At the same time, the waist beams welded into the channel steels are respectively welded to the two side walls of the steel sheet piles and connected by the connecting beam, so that the entire connecting beam structure is reasonably stressed during operation and is convenient for disassembly and assembly, thereby improving convenience in use.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: providing a double-row steel sheet pile connecting beam structure based on reasonable force, comprising two steel sheet pile bodies arranged opposite to each other, and waist beam components are tightly fitted near the top of the side walls of the two steel sheet pile bodies;

[0006] The waist beam assembly includes two channel steel waist beams with their backs facing each other, first steel plates are symmetrically welded to the two side walls of the two channel steel waist beams and near the end faces, a plurality of the first steel plates are provided with central holes in the middle, and the connecting steel bars pass through the waist beam assembly through the plurality of central holes, and stiffening plates are welded to the inside of the two channel steel waist beams and near the end faces;

[0007] The opposite surfaces of the two groups of waist beam assemblies and near the end faces are symmetrically welded with channel steel connecting beams through the first steel plate, and connecting steel bars are symmetrically penetrated near the front and rear top corners of the two steel sheet pile bodies. The outer walls of the two connecting steel bars are symmetrically sleeved with gaskets near the end faces, and the outer walls of the two connecting steel bars are symmetrically fixed with OVM anchors near the end faces, and the two side walls of the two steel sheet pile bodies are bolted with brackets near the top.

[0008] The utility model is further configured as follows: holes with equal diameters are provided at positions corresponding to the multiple center holes on the side walls of the two steel sheet pile bodies.

[0009] Through the above technical solution, when installing multiple sets of waist beam components, the connecting steel bars can pass through the center hole and the holes on the steel sheet pile body, so that the steel sheet pile body can be positioned and fixed through the waist beam assembly.

[0010] The utility model is further configured as follows: the relative distance between the backs of the two channel steel waist beams in the waist beam assembly is equal to the diameter of the center hole.

[0011] Through the above technical solution, when the connecting steel bars are installed, they can accurately pass through the waist beam assembly to prevent installation failure, and it is convenient to weld the first steel plate to the side wall of the channel steel waist beam.

[0012] The utility model is further configured as follows: the multiple groups of stiffening plates in the waist beam assembly are respectively arranged corresponding to the first steel plates on both sides of the channel steel waist beam.

[0013] Through the above technical scheme, when the OVM anchor is locked and fixed, it can squeeze the side wall of the channel steel waist beam, so as to reinforce it by using the corresponding stiffening plate set during operation to prevent the side wall of the channel steel waist beam from being compressed and damaged when excessive force is applied.

[0014] The utility model is further configured as follows: a second steel plate is welded at the top and bottom centers of the two channel steel connecting beams.

[0015] Through the above technical solution, the two channel steels can be welded and fixed by using the upper and lower second steel plates, thereby forming a more solid channel steel connecting beam, making the entire channel steel connecting beam more solid and stable during use.

[0016] The utility model is further configured as follows: a plurality of gaskets are respectively arranged to be tightly pressed against the corresponding first steel plates through OVM anchors.

[0017] Through the above technical solution, when the OVM anchor is used to lock and fix the connecting steel bars, it can apply the force to the gasket, thereby reducing the wear on the first steel plate and improving the firmness during use.

[0018] The utility model is further configured as follows: the tops of the plurality of brackets are respectively and closely fitted with the bottoms of the plurality of waist beam components.

[0019] Through the above technical solution, when installing multiple sets of waist beam components, multiple brackets can be positioned and fixed in advance, so that it is convenient to place multiple sets of waist beam components on top of multiple brackets, thereby facilitating the staff to improve the efficiency of the entire installation process during operation.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The double-row steel sheet pile connecting beam structure proposed by the utility model, which is based on reasonable force, replaces the traditional I-beam with two relatively welded channel steels, so that the overall strength can be improved during use, thereby improving the connection firmness of the entire connecting beam structure to the double-row steel sheet piles;

[0022] 2. The utility model proposes a double-row steel sheet pile connecting beam structure based on reasonable force, by welding the waist beam formed by channel steel to the two side walls of the steel sheet pile respectively, and connecting them through the connecting beam, so that the whole connecting beam structure is reasonably stressed during operation and convenient for disassembly and assembly, thereby improving convenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model based on the coupling beam structure for double-row steel sheet piles with reasonable force;

[0024] Figure 2 It is a structural schematic diagram of the prior art;

[0025] Figure 3 This is a structural diagram of the waist beam assembly in the coupling beam structure for double-row steel sheet piles based on reasonable force in the utility model;

[0026] Figure 4 It is a cross-sectional view of the coupling beam structure for double-row steel sheet piles based on reasonable force of the utility model;

[0027] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0028] In the figure:

[0029] 1. Steel sheet pile body; 2. Waist beam assembly; 21. Channel steel waist beam; 22. First steel plate; 23. Center hole; 24. Stiffening plate; 3. Channel steel connecting beam; 31. Second steel plate; 4. Connecting steel bars; 41. Gasket; 42. OVM anchor; 5. Bracket. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] like Figure 1 and Figure 4 As shown, a connecting beam structure for double-row steel sheet piles based on reasonable force includes two relatively arranged steel sheet pile bodies 1, and holes of equal diameter are opened at the side walls of the two steel sheet pile bodies 1 corresponding to the multiple center holes 23, so that when multiple sets of waist beam components 2 are installed, the connecting steel bars 4 can pass through the center holes 23 and the holes on the steel sheet pile bodies 1, so that the steel sheet pile bodies 1 can be positioned and fixed through the waist beam components 2.

[0032] like Figure 3 As shown, the side walls of the two steel sheet pile bodies 1 are tightly fitted with waist beam assemblies 2 near the top. The waist beam assembly 2 includes two channel steel waist beams 21 with their backs arranged opposite to each other. The relative distance between the backs of the two channel steel waist beams 21 in the waist beam assembly 2 is equal to the diameter of the center hole 23, which is convenient for the installation of the connecting steel bar 4, so that it can accurately pass through the waist beam assembly 2 to prevent the installation failure, and it is convenient to weld the first steel plate 22 to the side wall of the channel steel waist beam 21. The two side walls of the two channel steel waist beams 21 are symmetrically welded with the first steel plates 22 near the end surface, and multiple first steel plates 22 are welded to the side walls of the two channel steel waist beams 21. A center hole 23 is opened in the middle of a steel plate 22, and the connecting steel bar 4 passes through the waist beam assembly 2 through multiple center holes 23. Stiffening plates 24 are welded inside and near the end faces of the two channel steel waist beams 21. The multiple groups of stiffening plates 24 in the waist beam assembly 2 are respectively arranged corresponding to the first steel plates 22 on both sides of the channel steel waist beam 21, so that when the OVM anchor 42 is locked and fixed, it can squeeze the side wall of the channel steel waist beam 21, thereby using the corresponding stiffening plates 24 to reinforce it during operation, to prevent the side wall of the channel steel waist beam 21 from being compressed and damaged due to excessive force.

[0033] like Figure 4 and Figure 5As shown, the opposite surfaces of the two groups of waist beam assemblies 2 and near the end surfaces are symmetrically welded with channel steel connecting beams 3 through the first steel plates 22, and the second steel plates 31 are welded at the top and bottom centers of the two channel steel connecting beams 3. The two upper and lower second steel plates 31 can be used to weld and fix the two channel steels, thereby forming a more solid channel steel connecting beam 3, so that the entire channel steel connecting beam 3 is more solid and stable in use. The two steel sheet pile bodies 1 are symmetrically penetrated by connecting steel bars 4 near the front and rear top corners, and the outer walls of the two connecting steel bars 4 are symmetrically sleeved with gaskets 41 near the end surfaces. The multiple gaskets 41 are respectively set to be tightly against the corresponding first steel plates 22 through OVM anchors 42, which is convenient for the OVM anchors 42. When the connecting steel bars 4 are locked and fixed, the force can be applied to the gasket 41, thereby reducing the wear on the first steel plate 22 and improving the firmness during use. The outer walls of the two connecting steel bars 4 are symmetrically fixed with OVM anchors 42 near the end faces, and the two side walls of the two steel sheet pile bodies 1 are bolted with brackets 5 near the top. The tops of the multiple brackets 5 are tightly fitted with the bottoms of the multiple groups of waist beam assemblies 2, so that when the multiple groups of waist beam assemblies 2 are installed, the multiple brackets 5 can be positioned and fixed in a pre-position, so that the multiple groups of waist beam assemblies 2 are placed above the multiple brackets 5, which is convenient for the staff to improve the efficiency of the entire installation process during operation.

[0034] When the utility model is in use, firstly, a plurality of brackets 5 are bolted and installed on the side walls of two steel sheet pile bodies 1, then a plurality of waist beam assemblies 2 are installed and placed on the brackets 5, and two channel steel connecting beams 3 are welded to the relative waist beam assemblies 2, and the waist beam assemblies 2 are composed of two channel steels with opposite backs and a first steel plate 22 welded to the side walls, and a stiffening plate 24 is welded inside the channel steel, and then the connecting steel bar 4 is passed through the waist beam assembly 2 and the steel sheet pile body 1 through the center hole 23, and the OVM anchor 42 is used to reinforce it at its end face, thereby realizing the entire connecting beam system, so that it can reinforce and stabilize the double-row steel sheet piles through a reasonable internal force relationship.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-row steel sheet pile coupling beam structure based on reasonable stress, comprising two steel sheet pile bodies (1) arranged opposite to each other, Features: A waist beam assembly (2) is tightly fitted on the side walls of the two steel sheet pile bodies (1) near the top. The waist beam assembly (2) comprises two channel steel waist beams (21) arranged opposite to each other at the back, first steel plates (22) are symmetrically welded to the two side walls of the two channel steel waist beams (21) and near the end faces, a plurality of the first steel plates (22) are provided with central holes (23) in the middle, and connecting steel bars (4) pass through the waist beam assembly (2) through the plurality of central holes (23), and stiffening plates (24) are welded to the inside of the two channel steel waist beams (21) and near the end faces; Channel steel connecting beams (3) are symmetrically welded to the opposite surfaces of the two groups of waist beam assemblies (2) near the end faces through the first steel plate (22); connecting steel bars (4) are symmetrically penetrated near the front and rear top corners of the two steel sheet pile bodies (1); gaskets (41) are symmetrically sleeved on the outer walls of the two connecting steel bars (4) near the end faces; OVM anchors (42) are symmetrically fixedly connected to the outer walls of the two connecting steel bars (4) near the end faces; brackets (5) are bolted to the two side walls of the two steel sheet pile bodies (1) near the top.

2. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: Holes with equal diameters are provided at positions on the side walls of the two steel sheet pile bodies (1) corresponding to the multiple center holes (23).

3. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: The relative distance between the backs of the two channel steel waist beams (21) in the waist beam assembly (2) is equal to the diameter of the central hole (23).

4. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: The multiple groups of stiffening plates (24) in the waist beam assembly (2) are respectively arranged corresponding to the first steel plates (22) on both sides of the channel steel waist beam (21).

5. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: Second steel plates (31) are welded to the top and bottom centres of the two channel steel connecting beams (3).

6. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: The plurality of gaskets (41) are respectively arranged in close contact with the corresponding first steel plates (22) via OVM anchors (42).

7. The double-row steel sheet pile connecting beam structure based on reasonable force according to claim 1, Features: The tops of the plurality of brackets (5) are respectively arranged to be tightly fitted with the bottoms of the plurality of waist beam components (2).

Images