Built-in profile steel special-shaped steel tube lightweight concrete column structure
By using a lightweight concrete column structure with built-in steel profiles and special-shaped steel pipes, and by utilizing the design of connecting seats and auxiliary protective edges, the problem of secondary damage to the lightweight concrete column during transportation and dismantling of the protective structure is solved, achieving damage-free dismantling and rapid installation, and improving construction convenience and structural durability.
Patent Information
- Application Number
- CN202511431933.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-01-20
AI Technical Summary
Existing lightweight concrete column structures are prone to secondary damage during transportation when the protective structure is removed, affecting the overall performance.
The lightweight concrete column structure with built-in steel profiles and special-shaped steel pipes, through the design of connecting seats and auxiliary edge protection, utilizes the combination of connecting rods, spline sleeves and locking blocks to achieve damage-free disassembly and rapid installation, avoiding damage to the column.
It achieves residue-free and damage-free removal of the edge protection, protecting the structural integrity of the lightweight concrete column, reducing usage costs, and improving the convenience and practicality of construction.
Smart Images

Figure CN121363328A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of building construction, in particular to an internal built-in shaped steel pipe lightweight concrete column structure. BACKGROUND
[0002] In the process of building construction, in order to shorten the construction period and improve the efficiency of process connection, a lightweight concrete column structure is usually selected to accelerate the turnover of the formwork, enter the subsequent procedure in advance, and compress the total construction period. The existing lightweight concrete column structure is usually composed of a prefabricated soil column and a reinforcing rib.
[0003] For example, the utility model patent with the application number CN202020756294.1 discloses a lightweight sandwich concrete angle steel truss column structure, which specifically comprises a main body, an inner cavity, an outer shell, and a filling area. The outer shell is arranged outside the main body, and the inner cavity is arranged inside the outer shell. The filling area is arranged in the inner cavity. The inner cavity is also provided with column corner angle steel, column inclined web angle steel, and column straight web angle steel. The present application has a reasonable structure and stable support. Since the stress structure is separated from the lightweight sandwich concrete heat preservation, corrosion prevention, and fire prevention auxiliary structure, the problems of thick and heavy concrete column structure, exposed steel column, cold bridge, heat preservation, corrosion prevention, and fire prevention are solved. At the same time, the service life of the building is extended. The building structure can be produced in a factory and then transported to the site for assembly, which is very suitable for prefabricated buildings.
[0004] However, in the process of transporting the existing lightweight concrete column structure, a protective structure is usually arranged at the edge to prevent damage to the edge. The commonly used protective means includes adhesive corner protection and bolted corner protection. When the adhesive corner protection is removed, the residual adhesive layer needs to be cleaned by grinding, which can easily remove the cement paste protective layer on the surface of the concrete. The bolted corner protection needs to be pre-drilled on the edge of the column body, which can directly damage the integrity of the concrete. Both of the above protective methods can cause secondary damage to the lightweight concrete column structure during the removal stage, affecting the overall performance of the lightweight concrete column structure, and are not convenient to use. SUMMARY
[0005] Therefore, the present application provides an internal built-in shaped steel pipe lightweight concrete column structure, which has a connecting seat and an auxiliary edge protection that can be easily removed by the staff without damage. When the auxiliary edge protection is installed at the edge of the lightweight concrete column, the connecting rod is inserted into the connecting seat. The elasticity of the connecting rod can facilitate the staff to put the locking block into the installation slot. Then the staff presses the connecting shaft, which makes the connecting shaft drive the spline sleeve to slide along the spline shaft, and the fixed insertion rod is separated from the first fixed hole. At this time, the connecting shaft can be rotated to make the spline sleeve drive the spline shaft to rotate. The rotation of the spline shaft can make the locking block rotate into the locking groove to fix the auxiliary edge protection.
[0006] The application provides a built-in steel-shaped special-shaped steel pipe light concrete column structure, which has the advantages that the light concrete column is internally fixedly connected with four special-shaped steel pipe bodies, the four special-shaped steel pipe bodies are arranged in a rectangular array in the light concrete column, the light concrete column is internally fixedly connected with a steel body, the steel body is arranged on the inner side of the four special-shaped steel pipe bodies, the outer side of the light concrete column is provided with four auxiliary edge guards in a rectangular array, the outer side of each of the four auxiliary edge guards is fixedly connected with a group of connecting rods, the outer side of the light concrete column is fixedly connected with four groups of connecting seats in a rectangular array, the four groups of connecting rods are respectively inserted into the four groups of connecting seats, the outer side of each of the four groups of connecting rods is fixedly connected with a mounting column, each of the four groups of mounting columns is movably connected with a group of connecting shafts, the top end surface of the light concrete column is provided with four first connecting grooves in a rectangular array, the bottom end surface of the light concrete column is provided with four second connecting grooves in a rectangular array, and the four second connecting grooves are respectively aligned with the positions of the four first connecting grooves.
[0007] Further, the outer side of the light concrete column is provided with a plurality of groups of flow guide grooves in a rectangular array, and the plurality of groups of flow guide grooves are all rectangular groove structures.
[0008] Further, the outer side of each of the plurality of groups of flow guide grooves is provided with a fixed lug plate, the plurality of groups of fixed lug plates are fixedly connected to the outer side of the light concrete column in a rectangular array, the plurality of groups of fixed lug plates are all rectangular plate structures made of cement, and the plurality of groups of fixed lug plates are respectively aligned with the positions of the plurality of groups of flow guide grooves.
[0009] Further, each of the plurality of groups of fixed lug plates is fixedly connected with a reinforcing steel plate, the inner side of each of the plurality of groups of reinforcing steel plates is fixedly connected with a group of connecting steel bars, the tail ends of the plurality of groups of connecting steel bars are fixedly connected in the light concrete column, and the plurality of groups of connecting steel bars are all L-shaped column structures.
[0010] Further, the inner side of each of the four groups of connecting shafts is fixedly connected with a spline sleeve, each of the four groups of connecting rods is rotatably connected with a spline shaft, each of the four groups of spline sleeves is slidably connected to the outer side of each of the four groups of spline shafts, the tail end of each of the four groups of spline shafts is fixedly connected with a locking block, each of the four groups of connecting seats is provided with a mounting groove, the position of each of the four groups of locking blocks is aligned with the position of each of the four groups of mounting grooves, the shape of each of the four groups of mounting grooves is the same as the shape of each of the four groups of locking blocks, each of the four groups of mounting grooves is provided with a locking groove, and each of the four groups of connecting rods is a rectangular block structure made of ethylene-propylene-diene rubber.
[0011] Further, the outer side of each of the four groups of spline sleeves is fixedly connected with a connecting ring, each of the four groups of connecting rings is slidably connected in each of the four groups of mounting columns, the outer side of each of the four groups of connecting rings is fixedly connected with a fixed insertion rod, each of the four groups of mounting columns is provided with a first fixed hole, each of the four groups of fixed insertion rods is inserted into each of the four groups of first fixed holes, and each of the four groups of mounting columns is provided with a second fixed hole.
[0012] Further, the outer part of the four groups of spline sleeves is fixedly connected with damping blocks; the four groups of damping blocks are slidably connected in the four groups of mounting columns; the outer part of the four groups of damping blocks is fixedly connected with connecting springs; the tail end of the four groups of connecting springs is fixedly connected in the four groups of mounting columns.
[0013] Further, the outer side of the four groups of connecting shafts is fixedly connected with indicating blocks; the four groups of indicating blocks are the same in shape as the four groups of locking blocks.
[0014] Further, the inner side of the four auxiliary edge guards is fixedly connected with anti-skid wear-resistant layers; the four anti-skid wear-resistant layers are L-shaped plate structures made of silica gel.
[0015] Further, the four first connecting grooves are fixedly connected with first positioning blocks; the four first positioning blocks are ladder-shaped block structures; the four second connecting grooves are fixedly connected with second positioning blocks; the four second positioning blocks are ladder-shaped block structures; the four second positioning blocks are in position alignment with the four first positioning blocks.
[0016] Beneficial effects: when the auxiliary edge guard is installed at the edge of the lightweight concrete column, the connecting rod is inserted into the connecting seat, then the staff first presses the connecting shaft to make the fixed insertion rod separate from the first fixed hole, then the connecting shaft is rotated to make the locking block turn into the locking groove to fix the auxiliary edge guard, after the rotation is completed, only the connecting shaft is loosened, the damping block rebounds with the connecting spring and drives the spline sleeve to reset, the position of the locking block in the second fixed hole is fixed, the installation of the auxiliary edge guard is completed, and since the indicating block and the locking block are the same in shape, the staff can know the position of the locking block by observing the position of the indicating block, the edge of the lightweight concrete column is prevented from being damaged, the durability of the structure is protected, the staff can quickly install and disassemble the auxiliary edge guard, the auxiliary edge guard can be recycled, the use cost of the lightweight concrete column is reduced, and there is no residue after disassembly, the appearance and the integrity of the structure of the column body are maintained, and the convenience of the lightweight concrete column structure is effectively improved.
[0017] The first positioning block and the second positioning block are arranged to accurately position the lightweight concrete column, the spliced surface does not need to be leveled, and only needs to be filled with mortar to fill the gap, the ladder-shaped structure of the first positioning block and the second positioning block increases the contact area of the spliced surface, improves the stress transmission efficiency of the joint, and effectively improves the practicality of the lightweight concrete column structure. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.
[0019] The accompanying drawings that are described below only relate to some embodiments of the present application, and are not a limitation of the present application.
[0020] In the drawings: Figure 1 is a schematic view of the shaft of the present application.
[0021] Figure 2 is a schematic view of the shaft of the present application Figure 1 at A.
[0022] Figure 3 is a schematic view of the shaft of the present application from below.
[0023] Figure 4 is a schematic view of the shaft of the present application Figure 3 at B.
[0024] Figure 5 is a schematic view of the shaft of the present application connecting the steel bars.
[0025] Figure 6 is a schematic view of the shaft of the present application fixing the convex plate.
[0026] Figure 7 is a schematic view of the shaft of the present application anti-skid wear-resistant layer.
[0027] Figure 8 is a schematic view of the shaft of the present application installation groove.
[0028] Figure 9 is a schematic view of the shaft of the present application connecting seat.
[0029] Figure 10 is a schematic view of the shaft of the present application connecting rod.
[0030] Figure 11 is a schematic view of the shaft of the present application Figure 10 at C.
[0031] Figure 12 is a schematic view of the shaft of the present application installation column.
[0032] List of reference signs 1, lightweight concrete column; 101, special-shaped steel pipe main body; 102, profile steel main body; 103, flow guide groove; 104, fixed lug; 105, first connecting groove; 106, first positioning block; 107, second connecting groove; 108, second positioning block; 109, reinforcing steel plate; 110, connecting steel bar; 111, auxiliary edge protection; 112, anti-skid wear-resistant layer; 113, connecting rod; 114, connecting seat; 115, mounting groove; 116, locking groove; 117, spline shaft; 118, locking block; 119, spline sleeve; 120, damping block; 121, connecting spring; 122, connecting shaft; 123, indicating block; 124, connecting ring; 125, fixed insertion rod; 126, first fixing hole; 127, second fixing hole; 128, mounting column. DETAILED DESCRIPTION
[0033] Example one, the present application provides a built-in type steel special-shaped steel pipe lightweight concrete column structure, please refer to Figures 1 to 12 As shown, it comprises: a lightweight concrete column 1; The four special-shaped steel pipe main bodies 101 are fixedly connected in the lightweight concrete column 1 and arranged in a rectangular array inside the lightweight concrete column 1. The profile steel main body 102 is fixedly connected in the lightweight concrete column 1 and arranged on the inner side of the four special-shaped steel pipe main bodies 101. The four auxiliary edge protections 111 are arranged in a rectangular array on the outside of the lightweight concrete column 1. Each of the four auxiliary edge protections 111 is fixedly connected with a set of connecting rods 113. Four sets of connecting seats 114 are fixedly connected in a rectangular array on the outside of the lightweight concrete column 1. The four sets of connecting rods 113 are respectively inserted into the four sets of connecting seats 114. The four sets of connecting rods 113 are fixedly connected with mounting columns 128 on the outside. A set of connecting shafts 122 is movably connected in the four sets of mounting columns 128. Four first connecting grooves 105 are arranged in a rectangular array on the top end surface of the lightweight concrete column 1. Four second connecting grooves 107 are arranged in a rectangular array on the bottom end surface of the lightweight concrete column 1. The four second connecting grooves 107 are respectively aligned with the four first connecting grooves 105.
[0034] Among them, a plurality of flow guide grooves 103 are arranged in a rectangular array on the outside of the lightweight concrete column 1. The plurality of flow guide grooves 103 are rectangular groove structures.
[0035] Among them, a plurality of fixed lugs 104 are arranged on the outer side of the plurality of flow guide grooves 103. The plurality of fixed lugs 104 are fixedly connected in a rectangular array on the outside of the lightweight concrete column 1. The plurality of fixed lugs 104 are rectangular plate structures made of cement. The plurality of fixed lugs 104 are respectively aligned with the plurality of flow guide grooves 103.
[0036] Among them, a plurality of fixed convex plates 104 are fixedly connected with a plurality of reinforcing steel plates 109; the inner sides of the plurality of reinforcing steel plates 109 are fixedly connected with a group of connecting steel bars 110; the ends of the plurality of connecting steel bars 110 are fixedly connected in the lightweight concrete column 1; and the plurality of connecting steel bars 110 are L-shaped columnar structures.
[0037] Among them, the inner sides of the four connecting shafts 122 are fixedly connected with four spline sleeves 119; the four connecting rods 113 are rotatably connected with four spline shafts 117; the four spline sleeves 119 are respectively slidably connected outside the four spline shafts 117; the ends of the four spline shafts 117 are fixedly connected with a locking block 118; the four connecting seats 114 are respectively provided with an installation groove 115; the four installation grooves 115 are respectively aligned with the positions of the four locking blocks 118; the shapes of the four installation grooves 115 are the same as those of the four locking blocks 118; the four installation grooves 115 are respectively provided with a locking groove 116; and the four connecting rods 113 are rectangular block structures made of ethylene-propylene-diene rubber.
[0038] Among them, the outer sides of the four spline sleeves 119 are fixedly connected with four connecting rings 124; the four connecting rings 124 are respectively slidably connected in four installation columns 128; the outer sides of the four connecting rings 124 are fixedly connected with fixed insertion rods 125; the four installation columns 128 are respectively provided with a first fixed hole 126; the four fixed insertion rods 125 are respectively inserted into the four first fixed holes 126; and the four installation columns 128 are respectively provided with a second fixed hole 127.
[0039] Among them, the outer sides of the four spline sleeves 119 are fixedly connected with four damping blocks 120; the four damping blocks 120 are respectively slidably connected in the four installation columns 128; the outer sides of the four damping blocks 120 are fixedly connected with connecting springs 121; and the ends of the four connecting springs 121 are respectively fixedly connected in the four installation columns 128.
[0040] Among them, the outer sides of the four connecting shafts 122 are fixedly connected with four indicating blocks 123; and the shapes of the four indicating blocks 123 are the same as those of the four locking blocks 118.
[0041] Among them, the inner sides of the four auxiliary edge guards 111 are fixedly connected with four anti-skid wear-resistant layers 112; and the four anti-skid wear-resistant layers 112 are L-shaped plate structures made of silica gel.
[0042] The specific use and role of the embodiment are as follows: in the present application, in rainy days, the water flow on the surface of the column can be naturally collected to the middle and low-lying flow guide groove 103 due to the action of gravity, so that the drainage is more concentrated, and the rainwater is guided to flow down along the column surface in an orderly manner. Since the flow guide groove 103 is only arranged in the central area of the column surface of the lightweight concrete column 1, the weakening of the cross section of the lightweight concrete column 1 is reduced, the shear and bending resistance of the side edge of the lightweight concrete column 1 is ensured, the structural safety of the lightweight concrete column 1 is ensured, the fixing lug 104 is prefabricated on the lightweight concrete column 1, when the lightweight concrete column 1 is connected with the wall or the decorative panel through the fixing lug 104, the fixing lug 104 can be directly engaged with the mortar or the connecting piece without the need of punching holes or pre-burying fasteners on the column surface. At the same time, since the position of the fixing lug 104 is aligned with the flow guide groove 103, the cross section weakening of the flow guide groove 103 can also be compensated, so as to ensure the bearing capacity of the column. The setting of the reinforcing steel plate 109 can improve the tensile and shear strength and impact and deformation resistance of the fixing lug 104, and also can disperse the local concentrated load received by the fixing lug 104, strengthen the bearing capacity of the fixing lug 104 itself, and build a force transmission path without weak links through the setting of the connecting steel bar 110, so as to ensure that the reinforcing effect of the fixing lug 104 really acts on the column. When the auxiliary edge guard 111 is installed at the edge of the lightweight concrete column 1, the connecting rod 113 is inserted into the connecting seat 114, and the connecting rod 113 made of ethylene-propylene-diene rubber has certain elasticity and long-term durability. Through the elastic deformation capacity of the connecting rod 113, the locking block 118 can be smoothly put into the installation slot 115 without violent operation, so as to avoid scratching the column. Then, the staff can rotate the connecting shaft 122 to drive the spline sleeve 119 and the spline shaft 117 to rotate, so as to make the locking block 118 rotate into the locking groove 116 to fix the auxiliary edge guard 111. In the initial state, the fixed insertion rod 125 is inserted into the first fixed hole 126, so that the connecting shaft 122 cannot be rotated. The staff needs to press the connecting shaft 122 first, so that the connecting shaft 122 drives the spline sleeve 119 to slide along the spline shaft 117, so that the fixed insertion rod 125 is separated from the first fixed hole 126. At this time, the connecting shaft 122 can be rotated to drive the spline shaft 117 to rotate. In the process of sliding the connecting shaft 122 to drive the spline sleeve 119, the spline sleeve 119 drives the damping block 120 to move, so that the damping block 120 stretches the connecting spring 121. After rotation is completed, the connecting shaft 122 only needs to be released. At this time, under the action of the elastic potential energy of the connecting spring 121, the damping block 120 drives the spline sleeve 119 to reset, so that the second fixed hole 127 fixes the position of the locking block 118. The setting of the indicating block 123 facilitates the staff to rotate the connecting shaft 122, and since the indicating block 123 and the locking block 118 have the same shape,The staff can know the position of the locking block 118 by observing the position of the indicating block 123, and the setting of the anti-skid wear-resistant layer 112 can increase the friction between the auxiliary guard 111 and the lightweight concrete column 1, so that the auxiliary guard 111 is prevented from loosening or slipping.
[0043] In the embodiment two, on the basis of the embodiment one, please refer to Figures 1 to 4 As shown in the figure, comprising: the first positioning block 106 and the second positioning block 108, the four first connecting grooves 105 are fixedly connected with the first positioning block 106; the four first positioning blocks 106 are all ladder-shaped block structures; the four second connecting grooves 107 are fixedly connected with the second positioning block 108; the four second positioning blocks 108 are all ladder-shaped block structures; the four second positioning blocks 108 are respectively in position with the four first positioning blocks 106.
[0044] The specific use and role of the embodiment are as follows: in the embodiment, the first positioning block 106 and the second positioning block 108 can be used to accurately position the lightweight concrete column 1, the splicing surface does not need to be leveled, and only needs to be filled with mortar to fill the gap.
[0045] In this paper, the following points need to be paid attention to: 1. The embodiment only involves the structure related to the embodiment, and other structures can refer to the general design.
[0046] 2. In the case of no conflict, the features in the embodiment and the embodiment can be combined to obtain a new embodiment.
[0047] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A built-up steel shaped steel tube light-weight concrete column structure, comprising: The four special-shaped steel pipe bodies (101) are arranged in a rectangular array in the inside of the lightweight concrete column (1); a steel body (102) is fixedly connected in the lightweight concrete column (1); the steel body (102) is arranged on the inner side of the four special-shaped steel pipe bodies (101); characterized in that four auxiliary edge guards (111) are arranged in a rectangular array on the outside of the lightweight concrete column (1); one group of connecting rods (113) are fixedly connected to the outside of the four auxiliary edge guards (111); four groups of connecting seats (114) are fixedly connected to the outside of the lightweight concrete column (1) in a rectangular array; the four groups of connecting rods (113) are respectively inserted into the four groups of connecting seats (114); mounting columns (128) are fixedly connected to the outside of the four groups of connecting rods (113); one group of connecting shafts (122) are movably connected in the four groups of mounting columns (128); four first connecting grooves (105) are arranged in a rectangular array on the top end surface of the lightweight concrete column (1); four second connecting grooves (107) are arranged in a rectangular array on the bottom end surface of the lightweight concrete column (1); the positions of the four second connecting grooves (107) are aligned with those of the four first connecting grooves (105).
2. The built-up steel shaped steel tube light-weight concrete column structure according to claim 1, characterized in that: The outside of the lightweight concrete column (1) is provided with a plurality of groups of flow guide grooves (103) in a rectangular array; the plurality of groups of flow guide grooves (103) are all rectangular groove structures.
3. The built-up steel shaped steel tube light-weight concrete column structure according to claim 2, characterized in that: The outside of each of the plurality of groups of flow guide grooves (103) is provided with a fixed lug (104); the plurality of groups of fixed lugs (104) are fixedly connected to the outside of the lightweight concrete column (1) in a rectangular array; the plurality of groups of fixed lugs (104) are all rectangular plate structures made of cement; the positions of the plurality of groups of fixed lugs (104) are aligned with those of the plurality of groups of flow guide grooves (103).
4. The built-up steel shaped steel tube light-weight concrete column structure according to claim 3, characterized in that: A reinforcing steel plate (109) is fixedly connected in each of the plurality of groups of fixed lugs (104); one group of connecting steel bars (110) is fixedly connected to the inner side of each of the plurality of groups of reinforcing steel plates (109); the ends of the plurality of groups of connecting steel bars (110) are fixedly connected in the lightweight concrete column (1); the plurality of groups of connecting steel bars (110) are all L-shaped column structures.
5. The built-up steel shaped steel tube light-weight concrete column structure according to claim 1, characterized in that: A spline sleeve (119) is fixedly connected to the inner side of each of the four groups of connecting shafts (122); a spline shaft (117) is rotatably connected in each of the four groups of connecting rods (113); the four groups of spline sleeves (119) are respectively slidably connected to the outside of the four groups of spline shafts (117); one locking block (118) is fixedly connected to the end of each of the four groups of spline shafts (117); an installation groove (115) is arranged in each of the four groups of connecting seats (114); the positions of the four groups of installation grooves (115) are aligned with those of the four groups of locking blocks (118); the shapes of the four groups of installation grooves (115) are the same as those of the four groups of locking blocks (118); a locking groove (116) is arranged in each of the four groups of installation grooves (115); the four groups of connecting rods (113) are all rectangular block structures made of ethylene-propylene-diene rubber.
6. The built-up steel shaped steel tube light-weight concrete column structure according to claim 5, characterized in that: The outer part of each of the four spline sleeves (119) is fixedly connected with a connecting ring (124); the four connecting rings (124) are respectively and slidably connected in the four mounting columns (128); the outer part of each of the four connecting rings (124) is fixedly connected with a fixed insertion rod (125); the four mounting columns (128) are all provided with a first fixing hole (126); the four fixed insertion rods (125) are respectively inserted in the four first fixing holes (126); the four mounting columns (128) are all provided with a second fixing hole (127).
7. The built-up steel shaped steel tube light-weight concrete column structure according to claim 5, characterized in that: The outer part of each of the four spline sleeves (119) is fixedly connected with a damping block (120); the four damping blocks (120) are respectively and slidably connected in the four mounting columns (128); the outer part of each of the four damping blocks (120) is fixedly connected with a connecting spring (121); the tail end of each of the four connecting springs (121) is fixedly connected in the four mounting columns (128).
8. The built-up steel shaped steel tube light-weight concrete column structure according to claim 1, characterized in that: The outer side of each of the four connecting shafts (122) is fixedly connected with an indicating block (123); the four indicating blocks (123) are all of the same shape as the four locking clamping blocks (118).
9. The built-up steel shaped steel tube light-weight concrete column structure according to claim 1, characterized in that: The inner side of each of the four auxiliary edge guards (111) is fixedly connected with an anti-skid wear-resistant layer (112); the four anti-skid wear-resistant layers (112) are all L-shaped plate structures made of silica gel.
10. The built-up steel shaped steel tube light-weight concrete column structure according to claim 1, characterized in that: The four first connecting grooves (105) are all fixedly connected with a first positioning block (106); the four first positioning blocks (106) are all of stepped block structures; the four second connecting grooves (107) are all fixedly connected with a second positioning block (108); the four second positioning blocks (108) are all of stepped block structures; the four second positioning blocks (108) are respectively and in position with the four first positioning blocks (106).
Citation Information
Patent Citations
Light sandwich concrete angle steel truss column structure
CN212897182U