Pre-constraint block steel plate wall

Abstract

The utility model discloses a pre-constrained block steel plate wall. The pre-constrained block steel plate wall comprises pre-constrained blocks, concrete, a wall steel box and transverse stiffeners, the pre-constraint block material comprises a block material and a constraint cage; the block material is arranged in the constraint cage; the constraint cage comprises a cage frame and constraint cage holes; the end part of the constraint cage is closed; the transverse stiffener is a steel member and is fixedly connected with the wall steel box; the transverse stiffener is arranged corresponding to a horizontal member to be mounted; the pre-constraint block material is surrounded by the wall steel box; a gap between the pre-constraint block and the wall steel box is filled with concrete; and the transverse stiffener is arranged corresponding to the horizontal member to be mounted. According to the utility model, the block in the constraint cage and the concrete form the pre-constraint block concrete, so that the excessive crushing of the block is reduced, and the energy consumption and pollution are reduced; through the combined action of the block and the concrete, the bearing capacity and ductility of the pre-restrained block steel plate wall are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of structures, and particularly relates to a pre-constrained block steel plate wall. Background Art

[0002] In construction projects, structural walls are an important part of building structures. Structural walls often use reinforced concrete walls, which are composed of concrete and steel bars. This requires a large amount of stone, sand, and cement materials. According to statistics, the amount of stone used in construction in my country accounts for nearly 1 / 2 of the mass of concrete. At present, the natural sand and stone that meet the requirements of reinforced concrete structures can no longer meet the needs of engineering. In actual engineering, a large amount of machine-made sand and machine-made stone are used to crush natural stones into small-sized gravel or sand. This process requires high consumption of electricity, transportation, and labor, and produces a lot of dust. This puts great pressure on our resources and environment. How to reduce the use of cement, small-sized sand, and stone in structural walls is of great significance to my country's engineering construction and energy conservation and environmental protection. Utility Model Content

[0003] The purpose of the utility model is to provide a pre-constrained block steel plate wall, which solves the problem of using too much cement, small-grained sand and stone in the structural wall, and solves the problem of coordinated force between the block material, steel bars and concrete. The utility model improves the seismic performance of the wall by placing steel plates on the outside of the structural wall; the built-in pre-constrained block material effectively reduces the amount of cement, small-grained sand and stone, reduces hydration heat and dust; and improves the connection and force between the block material and concrete through the constraint cage to achieve the mechanical properties of the wall. This technology has the advantages of reliable performance, simple structure, fast construction, and green environmental protection.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions.

[0005] A pre-constrained block steel plate wall, the pre-constrained block steel plate wall comprises pre-constrained blocks, concrete, a wall steel box and transverse stiffeners; the pre-constrained blocks comprise blocks and a constraint cage; the blocks are built in the constraint cage; the constraint cage comprises a cage frame and constraint cage holes; the constraint cage is closed at the ends; the transverse stiffeners are steel components, fixedly connected to the wall steel box; the transverse stiffeners are arranged corresponding to the horizontal components to be installed; the pre-constrained blocks are surrounded by the wall steel box; the gap between the pre-constrained blocks and the wall steel box is filled with concrete; the transverse stiffeners are arranged corresponding to the horizontal components to be installed.

[0006] Preferably, the transverse stiffener is located inside the wall steel box; and there is no pre-constrained block material in the area corresponding to the transverse stiffener.

[0007] Preferably, the wall steel box is composed of steel plates and / or steel sections; the steel plates or steel sections surround the box body and are fixedly connected.

[0008] Preferably, there are openings at the top and bottom of the wall steel box; the wall steel box includes wall side steel plates and wall end steel plates; the wall side steel plates and the wall end steel plates form a box body and are fixedly connected.

[0009] Preferably, the constraint cage is closed at both ends; the constraint cage is a constraint rib cage or a grid cage; the size of the constraint cage hole is smaller than the size of the block material at that location; the cage frame includes a side wall frame and an end closure member; the end closure member is formed by extending the side wall frame or is a dedicated end closure member; the dedicated end closure member is connected to the side wall frame as a whole; concrete fills the gap in the pre-constrained block material; there is concrete at the constraint cage hole, so that the concrete in the constraint cage and the concrete outside the constraint cage are connected as a whole.

[0010] Preferably, the transverse stiffener is a transverse partition; the transverse partition is provided with a hole.

[0011] Preferably, the horizontal member to be installed is a steel beam and / or a steel-framed concrete beam; and the diaphragm is arranged corresponding to the flange of the steel beam and / or the steel-framed concrete beam.

[0012] Preferably, there are two or more transverse partitions arranged up and down; vertical partitions are provided between the transverse partitions, and the vertical partitions are fixedly connected to the transverse partitions and the wall steel box.

[0013] Preferably, wall steel bars are provided inside the wall steel box; the wall steel bars include vertical wall steel bars and horizontal wall steel bars; there are gaps between the wall steel bars and the pre-constrained blocks and the wall steel box; and concrete fills the gaps between the pre-constrained blocks, the wall steel bars and the wall steel box.

[0014] Preferably, the wall side steel plates are provided with holes, and bolts are used to connect the wall side steel plates into one body; and pre-constrained blocks are provided between the bolts and the wall side steel plates.

[0015] Preferably, the wall steel box has a cavity-dividing steel plate; the cavity-dividing steel plate and the wall steel box are fixedly connected to form a plurality of cavities; and the pre-constrained block material is located within the cavity.

[0016] Compared with the prior art, the utility model has the following characteristics and beneficial effects.

[0017] 1. The restraint cage effectively controls the contact mode and contact area of ​​the blocks during construction, so that the concrete can effectively fill the gaps between the blocks, effectively reduce quality defects, improve construction quality, and achieve structural safety. By placing blocks in the wall, the amount of cement, sand and stone can be reduced, and the hydration heat of large columns can be reduced during construction, saving energy and reducing emissions. The restraint cage in the wall restrains the blocks and concrete to form restrained block concrete, improve the strength and ductility of the combination of blocks and concrete, and achieve the mechanical properties of pre-constrained block steel plate walls.

[0018] 2. The force from the horizontal components is transmitted through transverse stiffeners; the concrete, wall steel box and pre-constrained blocks are subjected to force in a coordinated manner through transverse stiffeners. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the longitudinal section of the pre-constrained block steel plate wall.

[0021] Figure 2 It is a schematic diagram of the transverse section of the pre-constrained block steel plate wall.

[0022] Figure 3 It is a schematic longitudinal cross-sectional view of the pre-constrained block 9.

[0023] Figure 4 It is a schematic cross-sectional view of a pre-constrained block steel plate wall with wall reinforcement 6.

[0024] Figure 5 It is a schematic cross-sectional view of a pre-constrained block steel plate wall with bolts 11.

[0025] Figure 6 It is a schematic cross-sectional view of a pre-constrained block steel plate wall with a cavity steel plate 10.

[0026] Figure 7 It is a schematic diagram of the longitudinal section of the connection node between the pre-constrained block steel plate wall and the beam.

[0027] Figure numbers: 1-block, 2-restraint cage, 2.1-cage frame, 2.1.1-side wall frame, 2.1.2-end closure, 2.2-restraint cage hole, 3-concrete, 4-restraint reinforcement, 4.1-vertical reinforcement, 4.2-transverse reinforcement, 4.3-diagonal reinforcement, 5-wall steel box, 5.1-wall side steel plate, 5.2-wall end steel plate, 6-wall reinforcement, 6.1-wall vertical reinforcement, 6.2-wall horizontal reinforcement, 7-transverse stiffener, 8-opening, 9-pre-restraint block, 10-cavity steel plate, 11-bolt, 12-vertical partition, A-pre-restraint block steel plate wall, B-beam. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, technical solution and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the utility model and their descriptions are used to explain the utility model, but are not intended to limit the utility model.

[0029] In the description of the present utility model, it is to be understood that the terms "include / comprise", "consist of..." or any other variations thereof are intended to cover non-exclusive inclusion, so that a product, device, process or method including a series of elements includes not only those elements, but also other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of further restrictions, the elements defined by the sentences "include / comprise..." and "consist of..." do not exclude the presence of other identical elements in the product, device, process or method including the elements.

[0030] In the present utility model, unless otherwise clearly specified and limited, the term "fixed connection" should be understood in a broad sense, for example: it can be a sleeve connection, a lap joint, a welding connection, a bolt connection, or a combination of the above connections; the terms "installation", "connection", "connected" and the like 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 directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; the term "through-length steel bar" means that the steel bar is continuous without disconnection, or the steel bar is disconnected but the disconnected steel bars are fixedly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] It should also be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device, component or structure referred to must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.

[0032] The following is a detailed description of the implementation of the present invention using preferred implementation methods in conjunction with the accompanying drawings.

[0033] like Figure 1 , Figure 2 As shown, a pre-constrained block steel plate wall includes a pre-constrained block 9, concrete 3, a wall steel box 5 and a transverse stiffener 7; the pre-constrained block 9 includes a block 1 and a constraint cage 2; the block 1 is built in the constraint cage 2; the constraint cage 2 includes a cage frame 2.1 and a constraint cage hole 2.2; the constraint cage 2 is closed at the end; the transverse stiffener 7 is a steel component, fixedly connected to the wall steel box 5; the transverse stiffener 7 is arranged corresponding to the horizontal component to be installed; the pre-constrained block 9 is surrounded by the wall steel box 5; the concrete 3 fills the gap between the pre-constrained block 9 and the wall steel box 5; the transverse stiffener 7 is arranged corresponding to the horizontal component to be installed.

[0034] The transverse stiffener 7 is located inside the wall steel box 5; there is no pre-constrained block material 9 in the area corresponding to the transverse stiffener 7, which can better achieve the "strong node, weak component" performance.

[0035] Since the utility model uses a block material 1 with a larger particle size in the pre-constrained block steel plate wall, compared with ordinary concrete walls, it can effectively reduce the amount of cement and small-particle sand and gravel in the column, effectively saving energy and protecting the environment. When the sand and gravel in the wall uses artificial graded sand and gravel, the pre-constrained block steel plate wall can further reduce the high energy consumption and high dust caused by artificial graded sand and gravel.

[0036] Due to the presence of block material 1, the shrinkage creep of the pre-constrained block material steel plate wall is smaller than that of ordinary concrete wall, thus avoiding the defect that ordinary concrete is prone to cracks during large-volume construction. Block material 1 can greatly reduce the amount of cement used and reduce the hydration heat during construction. For large-volume concrete, hydration heat will cause concrete cracking, resulting in a decrease in mechanical properties such as concrete compression resistance, and reducing the service life of column components. For pre-constrained block material steel plate walls, hydration heat can be reduced, and block material 1 can effectively absorb the hydration heat generated by the surrounding concrete 3, reduce the temperature difference with the surrounding area, and effectively avoid hydration heat generated by the temperature difference.

[0037] The pre-constrained block steel plate wall constrains the block material 1 in the cage and the concrete 3 in the constraint cage through the constraint cage 2 in the column, thereby improving the strength and ductility of the combination of the block material 1 and the concrete 3 in the constraint cage, and forming a block concrete with a constraint effect; the constraint cage 2 simultaneously connects the concrete 3 in the constraint cage and the concrete 3 outside the constraint cage, and there is concrete 3 at the constraint cage hole 2.2, so that the concrete 3 in the constraint cage 2 and the concrete 3 outside the constraint cage 2 are connected as a whole; the constraint cage 2 increases the reinforcement content of the pre-constrained block steel plate wall, and as a block concrete with a constraint effect, it bears the corresponding force, thereby realizing that the concrete 3, the constraint cage 2 and the wall steel box 5 of the pre-constrained block steel plate wall are subjected to force together, and realizing the overall mechanical properties of the pre-constrained block steel plate wall.

[0038] The transverse stiffener 7 can bear the force transmitted from the horizontal members and transmit force to the concrete in the wall.

[0039] Moreover, during construction, the block material 1 is placed in the constraint cage 2 to form a pre-constrained block material 9, and multiple blocks can be hoisted and transported at one time, thereby improving construction efficiency; the constraint cage 2 can control the contact mode, contact area and shape of the block material 1 during construction, so that the concrete 3 can effectively fill the gaps between the blocks 1, effectively reducing quality defects, improving construction quality, and achieving structural safety.

[0040] In the utility model, the block material 1 can be a stone, a reinforced concrete block, a concrete block or a cement mortar block; the concrete 3 can be a self-compacting concrete, a high-fluidity concrete, a fiber concrete, an organic concrete and an ultra-high performance concrete HEPA or the like.

[0041] The block material 1 and the concrete 3 do not undergo a chemical reaction that reduces the strength or durability; the surface of the block material 1 is a rough surface; and the rough surface of the block material 1 is tightly combined with the concrete 3.

[0042] The difference between the bulk material particle size and the average bulk material particle size is no more than 30% of the average particle size. The small difference in bulk material particle size makes it easier to control the contact mode between the bulk materials or reduce their contact area.

[0043] In the utility model, the wall steel box 5 is composed of steel plates and / or steel sections; the steel plates or steel sections form a box body and are fixedly connected.

[0044] The wall steel box 5 has openings at the top and bottom; the wall steel box 5 includes a wall side steel plate 5.1 and a wall end steel plate 5.2; the wall side steel plate 5.1 and the wall end steel plate 5.2 form a box body and are fixedly connected.

[0045] In the utility model, Figure 3 As shown, the restraint cage 2 is closed at both ends; the restraint cage 2 is a restraint rib cage or a mesh cage; the size of the restraint cage hole 2.2 is smaller than the size of the block 1 at that location; the cage frame 2.1 includes a side wall frame 2.1.1 and an end closure 2.1.2; the end closure 2.1.2 is formed by extending the side wall frame 2.1.1 or is a dedicated end closure 2.1.2; the dedicated end closure 2.1.2 is connected to the side wall frame 2.1.1 as a whole; concrete 3 fills the gap in the pre-restrained block 9; the restraint cage hole There is concrete 3 at the hole 2.2, so that the concrete 3 inside the constraint cage 2 and the concrete 3 outside the constraint cage 2 are connected as one. The cage frame 2.1 can fix the position of the block 1, and the end closure 2.1.2 can close the cage frame 2.1 to prevent the block 1 from falling off from the end; the end closure 2.1.2 is formed by extending the side wall frame 2.1.1, and the two are integrated, which is beneficial to improving the strength and ductility of the pre-constrained block 9; the special end closure 2.1.2 and the side wall frame 2.1.1 are combined for easy production.

[0046] In the utility model, Figure 3 As shown, the cage frame 2.1 of the restraining rib cage is composed of restraining ribs 4; the restraining ribs 4 are steel bars or steel wires or FRP bars; the cage frame 2.1 of the grid cage is composed of metal mesh or steel plates with holes.

[0047] The restraining reinforcement 4 of the restraining reinforcement cage includes vertical reinforcement 4.1, transverse reinforcement 4.2 and / or oblique reinforcement 4.3; the end closure 2.1.2 of the restraining reinforcement cage is formed by fixing or bending the vertical reinforcement 4.1 or the oblique reinforcement 4.3 at the end or is an independent end closure 2.1.2; the independent end closure 2.1.2 is fixedly connected to the vertical reinforcement 4.1 or the oblique reinforcement 4.3, and the fixed connection method is bolting, welding or binding connection.

[0048] The shape of the restraining cage 2 can be cylindrical, spherical, ellipsoidal, etc.

[0049] In the present invention, the concrete 3 is a high-flow concrete, which includes self-compacting concrete and high-flow concrete. The high-flow concrete is more conducive to filling the gaps between the blocks and ensuring the overall compactness of the pre-constrained block steel plate wall.

[0050] The cage 2.1 is made of steel, and the strength of the steel is not less than 300Mpa; the volume ratio of the cage 2.1 to the restraining cage 2 is 0.05% to 4%. This can improve the strength and ductility of the pre-restrained block steel plate wall.

[0051] In the utility model, the transverse stiffener 7 is a transverse diaphragm, which can bear the force transmitted from the horizontal member and transmit force to the concrete in the wall; the transverse diaphragm is provided with a hole for pouring concrete and hoisting the pre-constrained block material 9.

[0052] The horizontal member to be installed is a steel beam and / or a steel-reinforced concrete beam; the diaphragm is arranged corresponding to the flange of the steel beam and / or the steel-reinforced concrete beam, shortening the force transmission path and improving the mechanical properties.

[0053] There are two or more transverse partitions, which are arranged up and down; vertical partitions 12 are arranged between the transverse partitions, and the vertical partitions 12 are fixedly connected to the transverse partitions and the wall steel box 5.

[0054] In the present invention, there are a plurality of pre-constrained blocks 9 ; the pre-constrained blocks 9 are arranged at intervals along the lateral direction of the wall, and the concrete 3 fills the gaps between the pre-constrained blocks 9 .

[0055] In the utility model, Figure 4 As shown, wall steel bars 6 are arranged inside the wall steel box 5; the wall steel bars 6 include vertical wall steel bars 6.1 and horizontal wall steel bars 6.2; there are gaps between the wall steel bars 6 and the pre-constrained blocks 9 and the wall steel box 5; and the concrete 3 fills the gaps between the pre-constrained blocks 9, the wall steel bars 6 and the wall steel box 5.

[0056] In the utility model, Figure 5 As shown, the wall side steel plate 5.1 is provided with a hole 8, and bolts 11 are used to connect the wall side steel plate 5.1 as a whole; the bolts 11 are arranged in a matrix; and there are pre-constrained blocks 9 between the bolts 11 and the wall side steel plate 5.1.

[0057] In the utility model, Figure 6 As shown, the wall steel box 5 has a cavity steel plate 10; the cavity steel plate 10 and the wall steel box 5 are fixedly connected to form a plurality of cavities; the pre-constrained block material 9 is located inside the cavity.

[0058] In the utility model, Figure 7 As shown, the pre-constrained block steel plate wall A is fixedly connected to the beam B to form a structure.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A pre-constrained block steel plate wall, characterized in that: The pre-constrained block steel plate wall (A) comprises a pre-constrained block (9), concrete (3), a wall steel box (5) and a transverse stiffener (7); the pre-constrained block (9) comprises a block (1) and a constraint cage (2); the block (1) is built in the constraint cage (2); the constraint cage (2) comprises a cage frame (2.1) and a constraint cage hole (2.2); the constraint cage (2) is closed at the end; the transverse stiffener (7) is a steel component fixedly connected to the wall steel box (5); the transverse stiffener (7) is arranged corresponding to the horizontal component to be installed; the pre-constrained block (9) is surrounded by the wall steel box (5); the concrete (3) fills the gap between the pre-constrained block (9) and the wall steel box (5).

2. The pre-constrained block steel plate wall according to claim 1, characterized in that: The transverse stiffener (7) is located inside the wall steel box (5); and there is no pre-constrained block material (9) in the area corresponding to the transverse stiffener (7).

3. The pre-constrained block steel plate wall according to claim 1, characterized in that: The wall steel box (5) is composed of steel plates and / or steel sections; the steel plates or steel sections surround the box body and are fixedly connected.

4. The pre-constrained block steel plate wall according to claim 1, characterized in that: The wall steel box (5) has openings at the top and bottom; the wall steel box (5) comprises a wall side steel plate (5.1) and a wall end steel plate (5.2); the wall side steel plate (5.1) and the wall end steel plate (5.2) form a box body and are fixedly connected.

5. The pre-constrained block steel plate wall according to claim 1, characterized in that: The restraining cage (2) is closed at both ends; the restraining cage (2) is a restraining rib cage or a mesh cage; the size of the restraining cage hole (2.2) is smaller than the size of the block material (1) at that location; the cage frame (2.1) comprises a side wall frame (2.1.1) and an end closing piece (2.1.2); the end closing piece (2.1.2) is formed by extending the side wall frame (2.1.1) or is a dedicated end closing piece (2.1.2); the dedicated end closing piece (2.1.2) is connected to the side wall frame (2.1.1) as a whole; the concrete (3) fills the gap in the pre-restrained block material (9); there is concrete (3) at the restraining cage hole (2.2), so that the concrete (3) in the restraining cage (2) and the concrete (3) outside the restraining cage (2) are connected as a whole.

6. The pre-constrained block steel plate wall according to claim 1, characterized in that: The transverse stiffener (7) is a transverse partition; the transverse partition is provided with a hole.

7. The pre-constrained block steel plate wall according to claim 6, characterized in that: The horizontal member to be installed is a steel beam and / or a steel-framed concrete beam; the transverse diaphragm is arranged corresponding to the flange of the steel beam and / or the steel-framed concrete beam.

8. The pre-constrained block steel plate wall according to claim 6, characterized in that: The transverse partitions are two or more and are arranged up and down; a vertical partition (12) is arranged between the transverse partitions, and the vertical partition (12) is fixedly connected to the transverse partition and the wall steel box (5).

9. The pre-constrained block steel plate wall according to claim 1, characterized in that: The wall steel box (5) is provided with wall steel bars (6) inside; the wall steel bars (6) include vertical wall steel bars (6.1) and horizontal wall steel bars (6.2); there is a gap between the wall steel bars (6), the pre-constrained blocks (9) and the wall steel box (5); the concrete (3) fills the gap between the pre-constrained blocks (9), the wall steel bars (6) and the wall steel box (5).

10. The pre-constrained block steel plate wall according to claim 4, characterized in that: The wall side steel plate (5.1) is provided with a hole (8), and bolts (11) are used to connect the wall side steel plate (5.1) into one body; a pre-constrained block material (9) is provided between the bolts (11) and the wall side steel plate (5.1).

11. The pre-constrained block steel plate wall according to claim 1, characterized in that: The wall steel box (5) has a cavity-dividing steel plate (10); the cavity-dividing steel plate (10) and the wall steel box (5) are fixedly connected to form a plurality of cavities; the pre-constrained block material (9) is located inside the cavity.

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