A mortarless reinforced block shear wall system and its construction technology

Abstract

The present invention relates to a mortarless reinforced block shear wall system, which includes two steel pipes. A wall is arranged between the two steel pipes. The wall is composed of a number of blocks stacked together. Mortise and tenon joints are provided between adjacent blocks both vertically and horizontally. A number of horizontal steel bars are vertically and evenly distributed inside the wall and penetrate through the blocks horizontally. The left and right ends of each horizontal steel bar are embedded inside the steel pipe on the same side and fixed. A number of vertical steel bars are horizontally and evenly distributed between the horizontal steel bars and penetrate through the blocks vertically. Concrete is poured inside the steel pipes and the blocks. The present invention has the following advantages: the steel bar mesh does not need to be tied, no formwork is required, it is not easy to leak slurry, there is no need to weld between the steel bars and the steel pipes and the connection is reliable, no mortar needs to be smeared, the construction is convenient, the construction cost is low, the construction speed is fast, and it has good integrity, fire resistance and seismic performance. This product is less affected by the construction environment and can be constructed all-weather. This product can be applied to high-rise buildings, with a short construction period, improving the structural integrity and seismic performance.

Description

Technical Field

[0001] The present invention relates to a mortar - free reinforced block shear wall system and its construction technology. Background Art

[0002] Reinforced block shear walls utilize the vertical holes and horizontal grooves of blocks to achieve a reasonable configuration of horizontal and vertical steel bars. By pouring concrete, shear walls are formed, thereby realizing the combined action of blocks, steel bars, and concrete within the wall. Reinforced block shear walls not only have seismic performance similar to that of reinforced concrete shear wall structures but also have the advantages of fewer construction processes and lower construction costs.

[0003] However, existing reinforced block shear walls have the following defects: (1) The construction speed is relatively slow. Mortar is required for bonding between blocks, and the next process can only be carried out after the mortar has bonded. (2) The construction technology is complex. To clean the mortar that falls into the block holes, cleaning hole blocks need to be set at the bottom of the wall. This process is complex and inconvenient for inspection. (3) The cleaning holes weaken the restraint ability of the bottom - layer blocks, resulting in a weak surface at this part of the wall. (4) The horizontal steel bars need to be spot - welded to the steel columns on - site. Welding requires welding machines and skilled workers, so the construction cost is high, and the weld quality of spot - welding is poor. (5) To ensure combined stress, horizontal and vertical steel bars need to be tied to form a steel bar mesh. The tying process increases labor costs, and the external blocks also affect the tying of steel bars.

[0004] Therefore, the present invention designs a mortar - free reinforced block shear wall to solve the above problems. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a mortar - free reinforced block shear wall system and its construction technology.

[0006] To solve the above - mentioned technical problem, the technical solution of the present invention is: A mortar - free reinforced block shear wall system includes two steel pipes. A wall is located between the two steel pipes. The wall is composed of a number of stacked blocks. The blocks adjacent to each other vertically and horizontally are tenon - and - mortise connected. A number of horizontal steel bars vertically distributed within the wall are horizontally inserted through the blocks. The left and right ends of the horizontal steel bars are embedded into the same - side steel pipes and fixed by vertical steel bars within the steel pipes. A number of vertical steel bars vertically inserted through the blocks are horizontally distributed between the horizontal steel bars. Concrete is poured into the steel pipes and the blocks.

[0007] Preferably, rectangular openings for the ends of the horizontal steel bars to penetrate are provided at the parts of the steel pipes where they are connected to the horizontal steel bars. Two vertical stiffeners are welded on both sides of the steel pipe side where the rectangular opening is located. The distance between the two vertical stiffeners is the width of the block.

[0008] Preferably, the building block is a hollow building block. A tenon is fixedly arranged on the left side of the building block, and an opening for the tenon of an adjacent building block to be inserted is arranged on the right side. The height of the tenon is lower than the top surface of the building block for arranging transverse steel bars. A groove is formed on the top surface of the building block, and a rib is fixedly arranged on the bottom surface of the building block for being embedded into the groove on the top surface of an adjacent building block.

[0009] Preferably, the transverse steel bar is integrally rectangular. A spiral hole is bent every distance of one building block length on its long side, and the directions of adjacent two spiral holes are opposite. The vertical steel bar passes through the vertically corresponding spiral holes. The head and tail of the transverse steel bar are overlapped by the upper and lower two spiral holes. The end of the transverse steel bar is inserted into a steel pipe and is anchored by the vertical steel bar inserted in the steel pipe.

[0010] Preferably, a steel bar is arranged at the bottommost part of the wall. The width of the steel bar is the same as the thickness of the building block. A groove for the rib on the bottom surface of the upper building block to be embedded is formed on the top surface of the steel bar.

[0011] A construction process of a mortar-free reinforced building block shear wall system is carried out according to the following steps:

[0012] Step 1: Prefabricated components: When prefabricating and processing the steel pipe, according to the dimensions of the column and the height of the building block in the design drawing, a rectangular opening is formed at the corresponding position on the side where the steel pipe is connected to the building block for arranging the transverse steel bar; two vertical stiffeners are welded on the side where the steel pipe is connected to the building block, and the distance between the two vertical stiffeners is the width of the building block; according to the design drawing, a building block mold is made, and the building block is made in a building block factory. The end building block is cut from the building block on the construction site according to the actual width of the wall; when processing the transverse steel bar, the steel bar is first bent into a U shape, and a spiral hole is bent every distance of one building block length on the two long sides of the steel bar, and the directions of adjacent two spiral holes are opposite. When the length of the transverse steel bar is equal to the length of the wall plus 3-4 times the diameter of the vertical steel bar, it is bent into a U shape again, and then a spiral hole is bent every distance of one building block length. Finally, the head and tail two spiral holes of the transverse steel bar are overlapped together; according to the design drawing, the vertical steel bar is prepared; according to the dimensions of the building block and the length of the wall, the steel bar is made;

[0013] Step 2: Install the steel pipe: First, according to the construction drawing, determine the installation position of the steel pipe;

[0014] Step 3: Arranging blocks and transverse steel bars: Steel bars are arranged between two vertical stiffeners outside the steel pipe. Then, the bottom layer of blocks is arranged on the steel bars. The bottom layer of blocks is connected through the steel bar grooves and the convex ribs on the bottom surface of the blocks. The end blocks are cut from the blocks. Insert the short side of the transverse steel bar into the rectangular opening of the steel pipe. Then, insert the convex ribs on the bottom surface of the second layer of blocks into the top grooves of the first layer of blocks. Arrange the transverse steel bars on the second layer of blocks, and so on until the top layer, and ensure that the spiral holes of the transverse steel bars in the upper and lower layers are connected vertically. The top layer of blocks should be cut according to the wall height. The left and right blocks are connected through tenons and openings, and the upper and lower blocks are connected through convex ribs and grooves. The holes of the upper and lower layers of blocks are aligned.

[0015] Step 4: Arranging vertical steel bars: Insert the vertical steel bars between the steel pipe and the transverse steel bars to fix the transverse steel bars, and penetrate the vertical steel bars up and down through the spiral holes of the transverse steel bars.

[0016] Step 5: Pouring concrete: Pour self-compacting concrete into the steel pipe and the wall.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. For the mortar-free reinforced block shear wall system of the present invention, the steel bars are free from binding, saving the labor cost of the binding process. At the same time, the connection of the horizontal and vertical steel bars is more reliable, and the construction speed is fast.

[0019] 2. For the mortar-free reinforced block shear wall system of the present invention, no formwork is required, the construction process is simple, and the construction cost is low.

[0020] 3. For the mortar-free reinforced block shear wall system of the present invention, both the horizontal joints and the vertical joints adopt mortise and tenon connections, which are not easy to leak mortar. Moreover, no mortar needs to be applied between the blocks, saving the labor cost and material cost of the mortar process, and the construction speed is fast.

[0021] 4. For the mortar-free reinforced block shear wall system of the present invention, there is no welding between the on-site steel bars and the steel pipe, but the connection is reliable, easy to install, and the construction cost is low. In addition to connecting the transverse steel bars, the vertical steel bars in the steel pipe can further improve the bearing capacity, fire resistance and seismic performance of the concrete-filled steel tube column.

[0022] 5. There are many communication holes in the steel pipe and the wall, which can realize the one-time pouring and forming of concrete, with a fast construction speed, and can further improve the integrity of this type of composite wall.

[0023] 6. The two vertical stiffeners outside the steel pipe can improve the bearing capacity and seismic performance of the concrete-filled steel tube, prevent the leakage of concrete in the shear wall, and fix the bottom steel bars and end blocks.

[0024] The following further elaborates the present invention in detail in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of an embodiment of the present invention.

[0026] Figure 2 is a top view of an embodiment of the present invention.

[0027] Figure 3 is a schematic diagram of a steel pipe in an embodiment of the present invention.

[0028] Figure 4 is a schematic diagram of a building block in an embodiment of the present invention.

[0029] Figure 5 is a schematic diagram of a horizontal steel bar in an embodiment of the present invention.

[0030] Figure 6 is a schematic diagram of a steel strip in an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0031] The present invention will be further described below in conjunction with the drawings and embodiments.

[0032] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] As Figures 1 - 6 shown, this embodiment provides a mortarless reinforced building block shear wall system. The purpose of the present invention is to provide a mortarless reinforced building block shear wall system and its construction process with fewer construction procedures, faster construction speed, simple operation, and low construction cost. It includes two steel pipes 1, and a wall 2 is arranged between the two steel pipes. The wall is composed of a number of building blocks 3 stacked together, and the adjacent building blocks in the vertical and horizontal directions are tenon-mortise connected. A number of horizontal steel bars 4 are vertically and evenly arranged inside the wall and penetrate through the building blocks. The left and right ends of the horizontal steel bars are embedded inside the steel pipes on the same side and fixed by the vertical steel bars inside the steel pipes. A number of vertical steel bars 5 are vertically and evenly arranged between the horizontal steel bars and penetrate through the building blocks, forming a steel bar mesh with the horizontal steel bars. Concrete is poured inside the steel pipes and the building blocks, and self-compacting concrete is used for the concrete.

[0035] In the embodiment of the present invention, rectangular openings 6 for the ends of the horizontal steel bars to penetrate are provided at the positions where the steel pipes are connected to the horizontal steel bars. The rectangular openings coincide with the rectangular openings on the left and right sides of the upper and lower adjacent layers of blocks. Two vertical stiffeners 7 are welded on both sides of the side surface of the steel pipe where the rectangular opening is located. The distance between the two vertical stiffeners is the width of the block. The vertical stiffeners can improve the bearing capacity, fire resistance and seismic performance of the concrete-filled steel tube. The two vertical stiffeners can fix the bottom steel bars and the end blocks, make up for the problem of the weakened cross-section caused by the opening of the steel pipe, and prevent the leakage of concrete during the pouring process.

[0036] In the embodiment of the present invention, the block is a hollow block. A tenon 8 is fixedly provided on the left side of the block, and an opening 9 for the tenon of the adjacent block to be inserted is provided on the right side, which can prevent the leakage of concrete in the shear wall; the height of the tenon is lower than the top surface of the block for arranging horizontal steel bars. A groove 10 is provided on the top surface of the block, and a rib 11 for embedding the groove on the top surface of the adjacent block is fixedly provided on the bottom surface of the block, which can prevent the leakage of concrete in the shear wall.

[0037] In the embodiment of the present invention, precast blocks are used for the blocks. The block is a hollow block. The length of the tenon on the left side of the block is twice the thickness of the block. The groove is recessed 0.5 times the thickness of the block inward from the center line of the upper surface of the block, and is formed by connecting the recessed center line with the corner points of the upper surface of the block. The tenon protrudes 0.5 times the thickness of the block board outward from the center line of the lower surface of the block, and is formed by connecting the protruding center line with the corner points of the lower surface of the block. The block is symmetric along the long side axis. The settings of the tenon and the opening, the rib and the groove prevent the leakage of concrete between the blocks during the pouring process. Non-whole blocks can be cut on-site according to the actual size at the construction site.

[0038] In the embodiment of the present invention, the horizontal steel bar is integrally rectangular. A spiral hole 12 with a diameter greater than 15 mm is bent every distance of one block length on the long side. The directions of adjacent two spiral holes are opposite. The vertical steel bar passes through the vertically corresponding spiral holes. The head and tail of the horizontal steel bar are overlapped by the upper and lower two spiral holes. The end of the horizontal steel bar is inserted into the steel pipe and is anchored by inserting the vertical steel bar in the steel pipe. In addition to connecting the horizontal steel bars, the vertical steel bars in the steel pipe can further improve the bearing capacity, fire resistance and seismic performance of the concrete-filled steel tube column.

[0039] In the embodiment of the present invention, a steel bar 13 is provided at the bottommost part of the wall. The width of the steel bar is the same as the thickness of the block. A groove for the rib on the bottom surface of the upper layer of the block to be embedded is provided on the top surface of the steel bar. The steel bar can be used for positioning the bottom layer of the block and preventing the leakage of concrete in the shear wall. The groove is recessed 0.5 times the thickness of the block inward from the center line of the upper surface of the steel bar, and is formed by connecting the recessed center line with the corner points of the upper surface of the steel bar. The groove of the steel bar coincides with the tenon of the block.

[0040] Construction process of a mortarless reinforced block shear wall system, which is carried out according to the following steps:

[0041] Step 1: Prefabricated components: When prefabricating and processing steel pipes, rectangular openings are made at corresponding positions on the side where the steel pipes are connected to the blocks according to the dimensions of the columns and the height of the blocks in the design drawings, so as to arrange horizontal steel bars; Two vertical stiffeners are welded on the side where the steel pipes are connected to the blocks, and the distance between the two vertical stiffeners is the width of the block; Make block templates according to the design drawings, make blocks in the block factory, and the end blocks can be cut from blocks on the construction site according to the actual width of the wall; When processing horizontal steel bars, first bend the steel bars into a U shape, and bend a spiral hole with a diameter greater than 15 mm every distance of one block length on the two long sides of the steel bar. The directions of adjacent two spiral holes are opposite. When the length of the horizontal steel bar is equal to the length of the wall plus 3-4 times the diameter of the vertical steel bar, then bend it into a U shape, and then bend a spiral hole with a diameter greater than 15 mm every distance of one block length. Finally, the head and tail two spiral holes of the horizontal steel bar are overlapped together; Prepare vertical steel bars according to the design drawings; Make steel bars according to the size of the blocks and the length of the wall;

[0042] Step 2: Install steel pipes: First, determine the installation position of the steel pipes according to the construction drawings;

[0043] Step 3: Arrange blocks and horizontal steel bars: Arrange steel bars between the two vertical stiffeners on the outside of the steel pipes, and then arrange the bottom layer of blocks on the steel bars. The bottom layer of blocks is connected through the steel bar grooves and the convex ribs on the bottom surface of the blocks. The end blocks are cut from the blocks; Insert the short sides of the horizontal steel bars into the rectangular openings of the steel pipes; Then insert the convex ribs on the bottom surface of the second layer of blocks into the top grooves of the first layer of blocks, and arrange horizontal steel bars on the second layer of blocks, and so on until the top layer, and it is necessary to ensure that the spiral holes of the horizontal steel bars in the upper and lower layers are connected up and down; The top layer of blocks should be cut according to the height of the wall; The left and right blocks are connected through tenons and openings, and the upper and lower blocks are connected through convex ribs and grooves. The holes of the upper and lower two layers of blocks are aligned;

[0044] Step 4: Arrange vertical steel bars: Insert the vertical steel bars between the steel pipes and the horizontal steel bars to fix the horizontal steel bars, and penetrate the vertical steel bars up and down through the spiral holes of the horizontal steel bars;

[0045] Step 5: Pour concrete: Pour self-compacting concrete into the steel pipes and the wall.

[0046] The mortarless reinforced block shear wall system of the present invention has the following advantages: the steel mesh does not need to be tied, no formwork is required, there is no easy mortar leakage, there is no need to weld between the steel bars and steel pipes and the connection is reliable, the horizontal and vertical steel bar connections are reliable, no mortar is needed for plastering, the construction is convenient, the construction cost is low, the construction speed is fast, and it has good integrity, fire resistance and seismic resistance. This product is less affected by the construction environment and can be constructed all-weather. This product can be applied to high-rise buildings, with a short construction period, improving the structural integrity and seismic resistance.

[0047] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A mortarless reinforced block shear wall system, characterized in that: It includes two steel pipes, with a wall between the two steel pipes. The wall is composed of a number of blocks stacked together. The blocks adjacent up and down and adjacent left and right are mortise-and-tenon connected. A number of horizontal steel bars horizontally penetrating the blocks are evenly distributed vertically inside the wall. The left and right ends of the horizontal steel bars are embedded inside the steel pipes on the same side and fixed by the vertical steel bars inside the steel pipes. A number of vertical steel bars vertically penetrating the blocks are evenly distributed left and right between the horizontal steel bars. Concrete is poured inside the steel pipes and the blocks; rectangular openings for the ends of the horizontal steel bars to penetrate are opened at the positions where the steel pipes are connected to the horizontal steel bars. Two vertical stiffeners are welded on both sides of the side of the steel pipe where the rectangular opening is located. The distance between the two vertical stiffeners is the width of the block; the horizontal steel bar is in a rectangular shape as a whole. A spiral hole is bent every distance equal to the length of a block on its long side. The directions of adjacent two spiral holes are opposite. The vertical steel bar passes through the vertically corresponding spiral holes. The head and tail of the horizontal steel bar are overlapped by the upper and lower two spiral holes. The end of the horizontal steel bar is inserted into the steel pipe and is anchored by vertically inserting the vertical steel bar inside the steel pipe.

2. The mortarless reinforced block shear wall system according to claim 1, characterized in that: The block is a hollow block. A tenon is fixedly provided on the left side of the block, and the right side is an opening for the tenon of the adjacent block to be embedded. The height of the tenon is lower than the top surface of the block for arranging the horizontal steel bar. A groove is opened on the top surface of the block, and a rib is fixedly provided on the bottom surface of the block for embedding into the groove on the top surface of the adjacent block.

3. The mortarless reinforced block shear wall system according to claim 2, characterized in that: A steel bar is provided at the bottommost part of the wall. The width of the steel bar is the same as the thickness of the block. A groove for the rib on the bottom surface of the upper block to be embedded is opened on the top surface of the steel bar.

4. The construction process of a mortarless reinforced block shear wall system as described in any one of claims 1-3, characterized in that, It is carried out according to the following steps: Step 1: Prefabricated components: When prefabricating and processing the steel pipes, according to the dimensions of the columns and the height of the blocks in the design drawings, rectangular openings are opened at the corresponding positions on the side where the steel pipes are connected to the blocks for arranging the horizontal steel bars; two vertical stiffeners are welded on the side where the steel pipes are connected to the blocks. The distance between the two vertical stiffeners is the width of the block; according to the design drawings, a block formwork is made, and the blocks are made in the block factory. The end blocks are cut from the blocks on the construction site according to the actual width of the wall; when processing the horizontal steel bars, first bend the steel bar into a U shape. A spiral hole is bent every distance equal to the length of a block on the two long sides of the steel bar. The directions of adjacent two spiral holes are opposite. When the length of the horizontal steel bar is equal to the length of the wall plus 3 - 4 times the diameter of the vertical steel bar, then bend it into a U shape, and then bend a spiral hole every distance equal to the length of a block. Finally, the head and tail two spiral holes of the horizontal steel bar are overlapped together; prepare the vertical steel bars according to the design drawings; make the steel bars according to the dimensions of the blocks and the length of the wall; Step 2: Install the steel pipes: First, according to the construction drawings, determine the installation positions of the steel pipes; Step 3: Arrangement of blocks and transverse steel bars: Steel bars are arranged between two vertical stiffeners on the outside of the steel pipe. Then, the bottom layer of blocks is arranged on the steel bars. The bottom layer of blocks is connected through the steel bar grooves and the convex ribs on the bottom surface of the blocks. The end blocks are cut from the blocks. The short sides of the transverse steel bars are inserted into the rectangular openings of the steel pipe. Then, the convex ribs on the bottom surface of the second layer of blocks are inserted into the top surface grooves of the first layer of blocks. Transverse steel bars are arranged on the second layer of blocks, and so on until the top layer, and it is necessary to ensure that the spiral holes of the transverse steel bars in the upper and lower layers are connected up and down. The blocks on the top layer should be cut according to the wall height. The left and right blocks are connected through tenons and openings, and the upper and lower blocks are connected through convex ribs and grooves. The holes of the upper and lower two layers of blocks are aligned; Step 4: Arrangement of vertical steel bars: The vertical steel bars are inserted between the steel pipe and the transverse steel bars to fix the transverse steel bars, and the vertical steel bars penetrate the spiral holes of the transverse steel bars up and down; Step 5: Pouring concrete: Self-compacting concrete is poured into the steel pipe and the wall.

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