A steel-concrete frame-shear wall building structure and construction method thereof

Abstract

The present invention discloses a steel-concrete frame-shear wall building structure and a construction method thereof. The steel-concrete frame-shear wall building structure includes a steel-concrete frame and a shear wall. The beams and columns of the steel-concrete frame are steel-concrete beams and steel-concrete columns, respectively. The shear wall includes a wall body, steel-concrete end columns and a steel cage. The steel cage is located inside the wall body. The steel-concrete end column is fixed to one end of the wall body. The shear wall is connected to the steel-concrete frame through the steel-concrete end column. The steel-concrete frame-shear wall building structure of the present invention adopts a steel-concrete frame with steel-concrete beams and steel-concrete column components, which reduces the maintenance requirements of traditional steel structure buildings. Steel-concrete end columns are set at both ends of the shear wall, which overcomes the defect that traditional steel structure buildings are difficult to adapt to the external enclosure system, making the steel structure building more suitable for residential projects.

Description

Technical Field

[0001] The invention relates to the field of construction, and in particular to a steel-concrete frame-shear wall building structure and a construction method thereof. Background Art

[0002] The main components of steel structure buildings are produced in factories and then transported to the site for installation. Therefore, steel structure buildings often have the advantages of short construction period, less construction waste and more environmental protection. At present, steel structure buildings are mainly used in large public buildings such as stadiums and railway stations, and are rarely used in residential projects. The main reasons are: 1. Compared with traditional reinforced concrete buildings, steel structure buildings have fire prevention and corrosion problems and require regular maintenance; 2. The external enclosure system of traditional residential buildings is poorly compatible with steel structures, especially for high-rise residential buildings. The steel structure system needs to set up lateral force-resistant components such as supports or steel plate shear walls. The external enclosure system is more difficult to handle with these components, which in turn affects subsequent use. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the steel structure buildings in the prior art have problems with fire prevention and corrosion resistance and difficulty in installing the external protection system, which makes it difficult to apply the steel structure buildings to residential projects.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a steel-concrete frame-shear wall building structure, comprising a steel-concrete frame and a shear wall, wherein the beams and columns of the steel-concrete frame are steel-concrete beams and steel-concrete columns respectively, and the shear wall comprises a wall body, a steel-concrete end column and a steel cage, wherein the steel cage is located inside the wall body, and the steel-concrete end column is fixed to one end of the wall body, and the shear wall is connected to the steel-concrete frame through the steel-concrete end column, and the steel-concrete frame and the shear wall are respectively located in different independent areas, that is, the steel-concrete frame is arranged in area ①, and the shear wall is arranged in area ② on both sides of the steel-concrete frame;

[0005] The steel cage is a prefabricated steel cage, which includes vertical steel bars, transverse steel bars, horizontal connecting pieces and a ribbed expansion net. V-shaped grooves are provided at both ends of the horizontal connecting piece, and the horizontal connecting piece is fixed on the vertical steel bars. A plurality of parallel vertical steel bars and a plurality of parallel transverse steel bars are arranged perpendicularly to each other to form a mesh, and all are welded at the nodes of the mesh to form a main steel cage. V-shaped stiffening ribs are provided on the surface of the ribbed expansion net, and the V-shaped stiffening ribs on the ribbed expansion net are fixed in the V-shaped grooves at both ends of the horizontal connecting piece, and the ribbed expansion net covers the outer surface of the steel cage. There is a gap between the ribbed expansion net and the vertical steel bars or the transverse steel bars, and the size of the gap is 15mm~200mm.

[0006] The horizontal connecting piece is provided with a clamp, and the horizontal connecting piece is clamped on the vertical steel bar through the clamp or the horizontal connecting piece is horizontally welded on the vertical steel bar. The length of the horizontal connecting piece is greater than or equal to the thickness of the shear wall. The horizontal connecting piece is a metal sheet, and the thickness of the horizontal connecting piece is 1-4 mm.

[0007] The steel-concrete end column is reserved with horizontal connecting steel bars, and the horizontal connecting steel bars are overlapped or sleeved with the transverse steel bars of the steel cage;

[0008] When the prefabricated steel cage is used on a construction site, the prefabricated steel cage on the upper layer and the prefabricated steel cage on the lower layer are overlapped and connected by inverted U-shaped steel bars.

[0009] Steel-concrete beams (PEC beams) and steel-concrete columns (PEC columns) are composite components formed by pouring concrete in H-shaped steel frames. Their load-bearing mechanism is similar to that of steel-concrete components. By combining steel and concrete, they work together. Concrete improves the local stability of open-section steel and improves the overall stability of pure steel components by increasing the bending and torsional rigidity of the entire section; the outer packaging constraints of steel inhibit the early cracking of concrete cracks to a certain extent. The steel-concrete end columns (PEC end columns) of the shear wall replace the edge components in the traditional shear wall, eliminating the need for complex steel bar binding. The steel-concrete end columns use mature PEC structural nodes to connect with the steel-concrete columns or steel-concrete beams in the steel-concrete frame. Not only is the node connection safe and reliable, but the construction efficiency is also high.

[0010] During construction, steel-concrete columns are usually installed in sections of three layers, that is, the steel-concrete frame is usually installed in three layers, while the shear wall can usually only be constructed layer by layer. Therefore, under the premise of meeting the building function, the steel-concrete frame and shear wall are respectively set in different independent areas to reduce mutual interference during construction. A common practice is to arrange the shear wall at the gables on both sides of the building, which not only increases the building's lateral resistance but also serves as the exterior wall, solving the problem of exterior wall waterproofing at the gable. If arranging shear walls only at the gables cannot meet the calculation requirements, the arrangement range of the concrete shear wall should be appropriately increased, and the concrete shear wall should form a closed area.

[0011] Other shear walls can be normally set up inside the steel-concrete frame, such as stairwells, elevator shafts and part of the exterior walls. The other shear walls in this part generally do not have steel-concrete end columns.

[0012] Steel-concrete beams and / or steel-concrete columns are generally made of fully prefabricated components or partially prefabricated components to facilitate construction and transportation. However, steel-concrete beams can also be made of cast-in-place reinforced concrete beams.

[0013] In the present invention, the steel profiles in the steel-concrete end column, steel-concrete column and steel-concrete beam are one or a combination of open-section H-shaped steel, channel steel, cross-shaped steel, closed-section box-shaped steel and round steel pipe; concrete is filled in the groove of the open part of the steel profile or in the closed-section steel or wraps the entire outer edge of the steel profile.

[0014] In the present invention, there are two ways to construct the shear wall. The first is the traditional cast-in-place method, that is, the vertical and transverse steel bars of the steel cage are tied at the construction site, wooden or metal formwork is supported around the steel cage, and concrete is poured in the formwork to form a wall. The second type is prefabricated, that is, the steel cage is a prefabricated steel cage, which includes vertical steel bars, transverse steel bars, horizontal connecting pieces and ribbed expansion nets. The ribbed expansion net is used as a non-disassembly template for pouring concrete. The horizontal connecting piece is a metal sheet, and V-shaped grooves are arranged at both ends of the horizontal connecting piece. The horizontal connecting piece is installed on the vertical steel bars; a number of parallel vertical steel bars and a number of parallel transverse steel bars are arranged perpendicular to each other to form a mesh, and all are welded at the nodes of the mesh to form a main steel cage. The ribbed expansion net is made of galvanized steel coils punched and stretched. The ribbed expansion net has hollow meshes to facilitate the discharge of gas and excess free water. V-shaped stiffening ribs are arranged on the surface of the ribbed expansion net, which are adapted to the V-shaped grooves. V-shaped stiffening ribs are arranged on the surface of the ribbed expansion net, and the V-shaped stiffening ribs on the ribbed expansion net are clamped in the V-shaped grooves at both ends of the horizontal connecting piece. The ribbed expansion net covers the outer surface of the steel cage. At least one side of the ribbed expanded net may also be covered with a finer mesh mesh, film, wire mesh or other covering layer to control the amount of free water discharged, or at least one side of the ribbed expanded net may also be provided with a thermal insulation material such as a foam board. There is no need to set a clamp on the connecting piece, but the connecting piece may be directly placed horizontally and welded to the corresponding two vertical steel bars. The connecting piece may also be placed vertically, and the connecting piece may be directly welded to the upper and lower transverse steel bars. At this time, the V-shaped stiffening ribs on the ribbed expanded net are also arranged in the vertical direction.

[0015] There are two ways to connect the horizontal connecting plate and the vertical steel bars: the first is: a clip is provided on the horizontal connecting plate, the clip can be made of non-metallic material and is clipped to the horizontal connecting plate body, or it can be made of metal and welded to the horizontal connecting plate body, or the clip and the connecting plate are an integrally formed casting, and the horizontal connecting plate is clipped to the vertical steel bars through the clip; the second is to directly weld the horizontal connecting plate to the vertical steel bars. At this time, the horizontal connecting plate can also be replaced by steel bars with V-shaped grooves at both ends.

[0016] When the prefabricated steel cage is used on the construction site, the prefabricated steel cage on the upper layer and the prefabricated steel cage on the lower layer are overlapped and connected by inverted U-shaped steel bars, and the length of the inverted U-shaped steel bars is generally 600mm~1900mm.

[0017] Furthermore, there is a gap between the ribbed expansion mesh and the vertical or horizontal steel bars, and the size of the gap is 15mm~200mm; a thick insulation board can be set in this gap to meet the insulation thickness requirements of ultra-low energy consumption buildings.

[0018] Furthermore, the inner side and / or outer side of the ribbed expansion net is also pasted with glass fiber mesh cloth, geotextile, film or a finished insulation board, or other materials that can prevent concrete slurry leakage, the purpose of which is to control the leakage of concrete slurry.

[0019] Furthermore, the steel-concrete end column is reserved with horizontal connecting steel bars, which are overlapped or sleeved with the transverse steel bars of the steel cage; a reinforcement expansion mesh is also arranged around the reserved horizontal connecting steel bars, which is used as a non-dismantling formwork for later pouring of concrete.

[0020] Furthermore, the length of the horizontal connecting piece is greater than or equal to the thickness of the shear wall, the horizontal connecting piece is a metal sheet, and the thickness of the horizontal connecting piece is 1-4 mm; holes are opened on the surface of the horizontal connecting piece and a thermal insulation coating is applied to improve the thermal insulation performance.

[0021] The present invention also provides a method for constructing a steel-concrete frame-shear wall building structure, comprising the following steps:

[0022] Step 1: Fabricate steel-concrete beams and steel-concrete columns in the factory;

[0023] Step 2: Fabricate prefabricated reinforcement cage and steel-concrete end columns in the factory;

[0024] Step 3: Transport the steel-concrete beams and columns to the construction site and assemble them into a steel-concrete frame;

[0025] Step 4: Transport the prefabricated steel cage and steel-concrete end column to the construction site or assemble them into integral components in the factory and transport them to the construction site;

[0026] Step 5: Connect the steel-concrete end column to the steel-concrete beam, and then pour concrete into the prefabricated steel cage; or first pour concrete into the prefabricated steel cage to reach sufficient strength and then connect the steel-concrete end column to the steel-concrete beam.

[0027] The above steps can be adjusted in order as needed. Wherein, step 2 specifically includes the following steps:

[0028] Step 2-1: Process and assemble the horizontal connecting pieces. Generally, two clamps are set or installed on each horizontal connecting piece, or more clamps may be provided;

[0029] Step 2-2: Use clamps to fix the horizontal connecting piece on the vertical steel bar, each clamp corresponds to a vertical steel bar, and the horizontal connecting piece and the vertical steel bar are combined to form a vertical steel bar unit;

[0030] Step 2-3: Arrange multiple vertical reinforcement units neatly, insert transverse reinforcement, and tie or weld the transverse reinforcement to the vertical reinforcement to form a main reinforcement cage;

[0031] Step 2-4: Insert the V-shaped stiffening ribs of the expanded steel mesh into the V-shaped grooves of the horizontal connecting piece, so that the expanded steel mesh covers the surface of the main steel cage to form a prefabricated steel cage;

[0032] Step 2-5: Make a steel-concrete end column and connect it to the prefabricated steel cage. Specifically, a straight-line connecting plate is provided on the steel-concrete end column, an oblong hole is provided in the straight-line connecting plate, and reserved horizontal connecting steel bars are provided in the oblong hole. The steel-concrete end column is connected to the prefabricated steel cage by using the horizontal connecting steel bars.

[0033] In order to improve production efficiency, the present invention uses an installer and a unit bracket to clamp the horizontal connecting piece and the vertical steel bar in step 2-2;

[0034] The unit support comprises a base frame and an angle steel welded to the base frame, wherein the length of the angle steel is not less than the length of the vertical steel bar;

[0035] The installer comprises a first plug block, a second plug block, a bracket and a support plate, wherein the first plug block and the second plug block are connected, the first plug block is provided with a first slot facing upwards, the first slot is used to insert the horizontal connecting piece, the second plug block is provided with a second slot facing downwards, the second slot is inserted into one side of the angle steel, the bracket is fixed on the second plug block, and the support plate is installed on the bracket;

[0036] In step 2-2, first use the second slot to insert the installer on one side of the angle steel. The number and spacing of the installers distributed on the angle steel are consistent with the number and designed spacing of the horizontal connecting plates; then place a vertical steel bar on the pallet; then insert a horizontal connecting plate into the first slot of each installer, and the clips on the horizontal connecting plate are inserted into the vertical steel bar; finally, insert the second or more vertical steel bars into the other clips on the horizontal connecting plate to complete the assembly of the vertical bar unit.

[0037] Furthermore, the vertical sides of the angle steel are provided with through-length steel bars; the installer also includes steel balls, the vertical walls of the first slot are provided with a first bowl-shaped side hole, and the vertical walls of the second slot are provided with a second bowl-shaped side hole. When the first plug block and the second plug block are combined, the first bowl-shaped side hole and the second bowl-shaped side hole are connected to form a horizontal channel, and the steel balls are located in the channel. The steel balls can translate in the channel and partially penetrate into the first slot or the second slot; when the horizontal connecting piece is inserted into the first slot, the steel balls are squeezed and translated by the horizontal connecting piece and partially penetrate into the second slot, and part of the steel balls are stuck under the steel bars of the angle steel; the function of the steel balls is that when the main steel cage is tied and hoisted, the installer is stuck on the angle steel by the steel balls, ensuring that the installer will not be lifted synchronously with the connecting piece.

[0038] Furthermore, an inclined surface is provided at the entrance of the first slot, and the cross section of the support plate is V-shaped.

[0039] Beneficial effects: (1) The steel-concrete frame-shear wall building structure of the present invention adopts a steel-concrete beam and steel-concrete column component building frame, which reduces the maintenance requirements of traditional steel structure buildings; steel-concrete end columns are set at both ends of the concrete shear wall, which overcomes the defect that traditional steel structure buildings are difficult to adapt to the external protection system, making steel structure buildings more suitable for residential projects. (2) The building frame and concrete shear wall of the steel-concrete frame-shear wall building structure of the present invention can be set in different independent areas, reducing mutual interference during construction and improving construction efficiency. (3) The concrete shear wall of the steel-concrete frame-shear wall building structure of the present invention adopts a prefabricated steel cage, and a reinforced expansion net is used to replace the traditional formwork system and can be removed without removal, so that the original construction site processes such as steel bar binding and formwork erection can be completed in advance in the factory. After the concrete solidifies and reaches the strength, there is no need to remove the formwork system, shortening the on-site construction period, so that the construction speed of the concrete shear wall can match the construction speed of the steel-concrete building frame; of course, according to construction needs, some reinforced expansion nets can also be installed on the construction floor. (4) The steel-concrete frame-shear wall building structure of the present invention uses an installer with two plug-in blocks to fix the connecting piece, making the assembly of the vertical reinforcement unit and the bundling of the main steel cage more efficient. (5) The steel-concrete frame-shear wall building structure of the present invention constructs a channel in the first slot and the second slot and puts steel balls in, so that the objects in the two slots are inserted and removed in an orderly manner, ensuring that after the main steel cage is manufactured, the installer will not be lifted synchronously with the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a plan view of the steel-concrete frame-shear wall building structure of Example 1.

[0041] Figure 2 It is a three-dimensional diagram of the shear wall in Example 1.

[0042] Figure 3 yes Figure 2 A enlarged view of .

[0043] Figure 4 It is a three-dimensional diagram of the vertical rib unit in Example 1.

[0044] Figure 5 It is a three-dimensional diagram of another vertical rib unit in Example 1.

[0045] Figure 6 It is a cross-sectional view of the ribbed expanded mesh in Example 1.

[0046] Figure 7 This is the connection diagram between the steel-concrete end column and the wall of the shear wall in Example 1 (part 1).

[0047] Figure 8 This is the connection diagram between the steel-concrete end column and the wall of the shear wall in Example 1 (part 2).

[0048] Fig. 9 It is the cross-sectional view of the steel-concrete end column of the shear wall in Example 1 (Example 1).

[0049] Fig.10 It is the cross-sectional view of the steel-concrete end column of the shear wall in Example 1 (Example 2).

[0050] Fig.11 It is a three-dimensional diagram of the installer in Example 1.

[0051] Fig.12 This is a three-dimensional diagram of the first plug block in Example 1.

[0052] Fig.13 This is a stereoscopic diagram of the second plug-in block in Example 1.

[0053] Fig.14 It is a cross-sectional view of the installer in Example 1.

[0054] Fig.15 It is a structural diagram of the unit bracket in Example 1.

[0055] Fig.16 This is a schematic diagram of the assembly of the vertical reinforcement unit in Example 1 (part 1).

[0056] Fig.17 This is the assembly diagram of the vertical reinforcement unit in Example 1 (part 2).

[0057] Fig.18 yes Fig.17 B is an enlarged view of .

[0058] Fig.19 This is the assembly diagram of the vertical reinforcement unit in Example 1 (part 3).

[0059] Fig. 20 It is a construction status diagram of the prefabricated steel cage in Example 1.

[0060] Fig.21 This is the connection diagram of the upper and lower prefabricated steel cages in Example 1.

[0061] Among them: 100, steel-concrete end column; 110, I-shaped connecting plate; 120, reserved horizontal connecting steel bars; 130, L-shaped bars; 140, tie bars; 200, prefabricated steel cage; 210, vertical steel bars; 220, transverse steel bars; 230, horizontal connecting pieces; 231, clamps; 240, ribbed expansion net; 300, installer; 310, first plug block; 311, first slot; 312, first side hole; 320, second plug block; 321, second slot; 322, second side hole; 330, bracket; 340, support plate; 350, steel balls; 400, unit bracket; 410, base frame; 420, angle steel; 430, steel bars; 500, diagonal brace; 600, inverted U-shaped steel bars. DETAILED DESCRIPTION

[0062] The present invention is further described in detail below in conjunction with specific implementation modes. Example 1

[0063] The steel-concrete frame-shear wall building structure of this embodiment includes a steel-concrete frame and a shear wall. The beams and columns of the steel-concrete frame are steel-concrete beams and steel-concrete columns respectively. The shear wall includes a wall body, steel-concrete end columns 100 and a steel cage. The steel cage is located inside the wall body. The steel-concrete end column 100 is fixed at one end of the wall body. The shear wall and the steel-concrete frame are connected through the steel-concrete end column 100.

[0064] Both the steel-concrete beam and the steel-concrete column are composite structures formed by pouring concrete in the H-shaped steel frame. Their bearing mechanism is similar to that of steel-concrete components. By combining steel and concrete, they work together. Concrete improves the local stability of open-section steel and improves the overall stability of pure steel components by increasing the bending and torsional stiffness of the entire section; the outer packaging constraint of steel inhibits the early cracking of concrete cracks to a certain extent. The steel-concrete end column 100 of the shear wall replaces the edge components in the traditional shear wall, eliminating the need for complex steel bar binding. The steel-concrete end column 100 uses a mature PEC structural node to connect with the steel-concrete column or steel-concrete beam in the steel-concrete frame. Not only is the node connection safe and reliable, but the construction efficiency is also high.

[0065] During construction, steel-concrete columns are usually installed in sections of three layers each, i.e., the steel-concrete frame is usually installed in three layers, while shear walls can usually only be constructed layer by layer. Therefore, under the premise of meeting the building function, the steel-concrete frame and shear walls are located in different independent areas to reduce mutual interference during construction. A common practice is to arrange the shear walls at the gables on both sides of the building, which can increase the building's lateral resistance while also serving as external walls to solve the problem of external wall waterproofing at the gables. For example, in this embodiment, the steel-concrete frame is arranged at Figure 1 In area ①, shear walls are set in area ② on both sides of the steel-concrete frame.

[0066] In this embodiment, there are two ways to construct the shear wall. The first is the traditional cast-in-place method, that is, the steel cage is tied at the construction site, and a wooden formwork or a metal formwork is supported around the steel cage, and concrete is poured in the formwork to form a wall. The second is the prefabricated method, that is, the steel cage is a prefabricated steel cage 200, such as Figures 2 to 6 As shown, the prefabricated steel cage 200 includes vertical steel bars 210, transverse steel bars 220, horizontal connecting pieces 230 and a steel expansion mesh 240. Figure 4 and Figure 5 The horizontal connecting piece 230 is a metal sheet, and V-shaped grooves are provided at both ends of the horizontal connecting piece 230. A clamp 231 is provided on the horizontal connecting piece 230. The clamp 231 can be made of non-metallic material and is clamped with the horizontal connecting piece 230 body. Figure 4 The card member 231 may also be made of metal and welded to the horizontal connecting piece 230, as shown in FIG. Figure 5 The horizontal connecting piece 230 is connected to the vertical steel bar 210 by the clamp 231, and the transverse steel bar 220 and the vertical steel bar 210 are bundled in an orderly manner to form a Figure 2 The main reinforcement cage shown; the ribbed expansion mesh 240 is a mature building material product, the ribbed expansion mesh 240 is generally made of galvanized steel coil punching and stretching, such as Figure 6 As shown, the surface of the ribbed expansion net 240 is provided with V-shaped stiffening ribs, which are adapted to the V-shaped grooves of the horizontal connecting piece 230. The ribbed expansion net 240 is fixed on the main steel cage and covers the surface of the main steel cage in a manner that the V-shaped stiffening ribs are snapped into the V-shaped grooves of the horizontal connecting piece 230.

[0067] The construction method of the steel-concrete frame-shear wall building structure of this embodiment includes the following steps:

[0068] Step 1: Fabricate steel-concrete beams and steel-concrete columns in the factory;

[0069] Step 2: manufacturing a prefabricated steel cage 200 and a steel-concrete end column 100 in a factory;

[0070] Step 3: Transport the steel-concrete beams and columns to the construction site and assemble them into a steel-concrete frame;

[0071] Step 4: transport the prefabricated steel cage 200 and the steel-concrete end column 100 to the construction site or assemble them into integral components in a factory and transport them to the construction site;

[0072] Step 5: Connect the steel-concrete end column 100 to the steel-concrete beam, and then pour concrete into the prefabricated steel cage 200, wherein the prefabricated steel cage 200 can be as follows: Fig. 20 As shown, diagonal braces 500 are used for support.

[0073] Among them, the step 2 needs to use Figures 11 to 15The mounter 300 and the unit support 400 are shown.

[0074] The unit support 400 includes a base frame 410 and an angle steel 420 welded to the base frame 410. The length of the angle steel 420 is not less than the length of the vertical steel bar 210. The vertical side of the angle steel 420 is provided with a full-length steel bar 430.

[0075] The installer 300 includes a first plug block 310, a second plug block 320, a bracket 330, a support plate 340 and a steel ball 350. The first plug block 310 and the second plug block 320 are connected. The first plug block 310 is provided with a first slot 311 facing upward, and the first slot 311 is used to insert the horizontal connecting piece 230. The second plug block 320 is provided with a second slot 321 facing downward, and the second slot 321 is inserted into one side of the angle steel 420. The bracket 330 is fixed on the second plug block 320, and the support plate 340 is installed on the bracket 330; the vertical wall of the first slot 311 is provided with a first bowl-shaped side hole 312, and the vertical wall of the second slot 321 is provided with a second bowl-shaped side hole 322. When the first plug block 31 After the first slot 311 and the second plug block 320 are combined, the first side hole 312 of the bowl shape and the second side hole 322 of the bowl shape are connected to form a horizontal channel, and the steel ball 350 is located in the channel. The steel ball 350 can translate in the channel and partially penetrate into the first slot 311 or the second slot 321; when the horizontal connecting piece 230 is inserted into the first slot 311, the steel ball 350 is squeezed and translated by the horizontal connecting piece 230 and partially penetrates into the second slot 321, and the steel ball 350 is partially stuck under the steel bar 430 of the angle steel 420; the role of the steel ball 350 is that when the main steel cage is tied and hoisted, the installer 300 is stuck on the angle steel 420 by the steel ball 350, ensuring that the installer 300 will not be lifted synchronously with the connecting piece. An inclined surface is set at the entrance of the first slot 311, and the cross section of the support plate 340 is V-shaped.

[0076] The above step 2 specifically includes the following steps:

[0077] Step 2-1: Process and assemble the horizontal connecting pieces 230 , and generally two clamping pieces 231 are arranged or installed on each horizontal connecting piece 230 ;

[0078] Step 2-2: If Fig.16 As shown, multiple installers 300 are evenly inserted on the angle steel 420, and the number and spacing of the installers 300 distributed on the angle steel 420 are consistent with the designed number and designed spacing of the horizontal connecting piece 230; at this time, the steel ball 350 in the installer 300 can freely translate left and right;

[0079] Step 2-3: If Fig.16 As shown, a vertical steel bar 210 is placed on a support plate 340;

[0080] Step 2-4: If Fig.17 and Fig.18 As shown, a horizontal connecting piece 230 is inserted into the first slot 311 of each installer 300, and the clamping piece 231 on the horizontal connecting piece 230 is clamped into the vertical steel bar; at this time, the steel ball 350 is squeezed by the horizontal connecting piece 230 and moves to the right and partially penetrates into the second slot 321, and a part of the steel ball 350 is clamped under the steel bar 430 of the angle steel 420. At this time, the installer 300 is clamped on the angle steel 420 and cannot be removed, ensuring that the installer 300 will not be lifted away together with the horizontal connecting piece 230 when the steel cage is lifted later;

[0081] Step 2-5: If Fig.19 As shown, the second vertical steel bar 210 is clamped into the upper clamp 231; Figure 5 The vertical reinforcement unit shown is assembled;

[0082] Step 2-6: Arrange multiple vertical reinforcement units neatly, insert transverse reinforcement 220, and bundle the transverse reinforcement 220 with the vertical reinforcement 210 to form a main reinforcement cage;

[0083] Step 2-7: Figure 2 and Figure 7 As shown, a straight-line connection plate 110 is provided on the steel-concrete end column 100, an oblong hole is provided in the straight-line connection plate 110, and a reserved horizontal connection steel bar 120 is provided in the oblong hole, and the reserved horizontal connection steel bar 120 is mutually anchored and bundled with the vertical steel bars 210 in the main steel cage;

[0084] Step 2-8: Insert the V-shaped stiffening ribs of the ribbed expansion mesh 240 into the V-shaped grooves of the horizontal connecting piece 230 so that the ribbed expansion mesh 240 covers the surface of the main steel cage to obtain the prefabricated steel cage 200.

[0085] In the above 2-7, there are many ways to connect the steel-concrete end column 100 with the main steel cage: the first one is as follows: Figure 8 As shown, an L-shaped rib 130 is arranged in the I-shaped connecting plate 110, and then the L-shaped rib 130 is tied to the main steel cage; the second method, as shown in FIG. Fig. 9 and Fig.10 As shown, the tie bars 140 in the steel-concrete end column 100 are extended out and tied and connected with the main reinforcement cage by the tie bars 140. Both the L-shaped bars 130 and the tie bars 140 can be considered as a kind of reserved horizontal connection reinforcement.

[0086] In this embodiment, when the prefabricated steel cage is used at the construction site, the prefabricated steel cage at the upper layer and the prefabricated steel cage at the lower layer are as follows: Fig.21 As shown, inverted U-shaped steel bars are used for lap joints, and the length of the inverted U-shaped steel bars is generally 600mm~1900mm.

[0087] Although the embodiments of the present invention are described in the specification, these embodiments are only for reference and should not limit the protection scope of the present invention. Various omissions, substitutions and changes within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-concrete frame-shear wall building structure, characterized in that: It comprises a steel-concrete frame and a shear wall, wherein the beams and columns of the steel-concrete frame are steel-concrete beams and steel-concrete columns respectively, the shear wall comprises a wall body, steel-concrete end columns and a steel cage, the steel cage is located inside the wall body, the steel-concrete end column is fixed to one end of the wall body, the shear wall is connected to the steel-concrete frame through the steel-concrete end column, and the steel-concrete frame and the shear wall are respectively located in different independent areas, that is, the steel-concrete frame is set in area ①, and the shear wall is set in area ② on both sides of the steel-concrete frame; The steel cage is a prefabricated steel cage, which includes vertical steel bars, transverse steel bars, horizontal connecting pieces and a ribbed expansion net. V-shaped grooves are provided at both ends of the horizontal connecting piece, and the horizontal connecting piece is fixed on the vertical steel bars. A plurality of parallel vertical steel bars and a plurality of parallel transverse steel bars are arranged perpendicularly to each other to form a mesh, and all are welded at the nodes of the mesh to form a main steel cage. V-shaped stiffening ribs are provided on the surface of the ribbed expansion net, and the V-shaped stiffening ribs on the ribbed expansion net are fixed in the V-shaped grooves at both ends of the horizontal connecting piece, and the ribbed expansion net covers the outer surface of the steel cage. There is a gap between the ribbed expansion net and the vertical steel bars or the transverse steel bars, and the size of the gap is 15mm~200mm. The horizontal connecting piece is provided with a clamp, and the horizontal connecting piece is clamped on the vertical steel bar through the clamp or the horizontal connecting piece is horizontally welded on the vertical steel bar. The length of the horizontal connecting piece is greater than or equal to the thickness of the shear wall. The horizontal connecting piece is a metal sheet, and the thickness of the horizontal connecting piece is 1-4 mm. The steel-concrete end column is reserved with horizontal connecting steel bars, and the horizontal connecting steel bars are overlapped or sleeved with the transverse steel bars of the steel cage; When the prefabricated steel cage is used on a construction site, the prefabricated steel cage on the upper layer and the prefabricated steel cage on the lower layer are overlapped and connected by inverted U-shaped steel bars.

2. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: Other shear walls are arranged in the steel-concrete frame area.

3. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The steel-concrete beams and / or steel-concrete columns are fully prefabricated components or partially prefabricated components.

4. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The steel-concrete beam is a cast-in-place reinforced concrete beam.

5. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The steel profiles in the steel-concrete end columns, steel-concrete columns and steel-concrete beams are one or more combinations of open-section H-shaped steel, channel steel, cross-shaped steel, closed-section box-shaped steel and round steel pipes; concrete is filled in the grooves at the openings of the steel profiles or inside the closed-section steel or wraps around the entire outer edge of the steel profiles.

6. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The steel cage is tied at the construction site, and wooden or metal formwork is supported around the steel cage. Concrete is poured in the formwork to form a wall.

7. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The inner side and / or outer side of the ribbed expanded net is also adhered with a glass fiber mesh cloth, a geotextile, a film, or a finished insulation board.

8. The steel-concrete frame-shear wall building structure according to claim 1 is characterized in that: The surface of the horizontal connecting piece is opened with holes and coated with thermal insulation paint.

9. A method for constructing a steel-concrete frame-shear wall building structure as claimed in claim 1, characterized in that The steps include: Step 1: Fabricate steel-concrete beams and steel-concrete columns in the factory; Step 2: Fabricate prefabricated reinforcement cage and steel-concrete end columns in the factory; Step 3: Transport the steel-concrete beams and columns to the construction site and assemble them into a steel-concrete frame; Step 4: Transport the prefabricated steel cage and steel-concrete end column to the construction site or assemble them into integral components in the factory and transport them to the construction site; Step 5: Connect the steel-concrete end column to the steel-concrete beam, and then pour concrete into the prefabricated steel cage; or first pour concrete into the prefabricated steel cage to reach sufficient strength and then connect the steel-concrete end column to the steel-concrete beam.

10. The method for constructing a steel-concrete frame-shear wall building structure according to claim 9, characterized in that The step 2 specifically includes the following steps: Step 2-1: Process and assemble the horizontal connecting pieces, and at least set or install two clamps on each horizontal connecting piece; Step 2-2: Use clamps to fix the horizontal connecting piece on the vertical steel bar, each clamp corresponds to a vertical steel bar, and the horizontal connecting piece and the vertical steel bar are combined to form a vertical steel bar unit; Step 2-3: Arrange multiple vertical reinforcement units neatly, insert transverse reinforcement, and tie or weld the transverse reinforcement to the vertical reinforcement to form a main reinforcement cage; Step 2-4: Insert the V-shaped stiffening ribs of the expanded steel mesh into the V-shaped grooves of the horizontal connecting piece, so that the expanded steel mesh covers the surface of the main steel cage to form a prefabricated steel cage; Step 2-5: Fabricate the steel-concrete end columns and connect them with the prefabricated steel cage.

11. The method for constructing a steel-concrete frame-shear wall building structure according to claim 10, characterized in that: In step 2-5, a straight-line connection plate is provided on the steel-concrete end column, an oblong hole is provided in the straight-line connection plate, and reserved horizontal connecting steel bars are provided in the oblong hole. The steel-concrete end column is connected to the prefabricated steel cage by using the horizontal connecting steel bars.

12. The method for constructing a steel-concrete frame-shear wall building structure according to claim 10, characterized in that: In step 2-2, the horizontal connecting piece and the vertical steel bar are clamped together using an installer and a unit bracket; The unit support comprises a base frame and an angle steel welded to the base frame, wherein the length of the angle steel is not less than the length of the vertical steel bar; The installer comprises a first plug block, a second plug block, a bracket and a support plate, wherein the first plug block and the second plug block are connected, the first plug block is provided with a first slot facing upwards, the first slot is used to insert the horizontal connecting piece, the second plug block is provided with a second slot facing downwards, the second slot is inserted into one side of the angle steel, the bracket is fixed on the second plug block, and the support plate is installed on the bracket; In step 2-2, first use the second slot to insert the installer on one side of the angle steel. The number and spacing of the installers distributed on the angle steel are consistent with the number and designed spacing of the horizontal connecting plates; then place a vertical steel bar on the pallet; then insert a horizontal connecting plate into the first slot of each installer, and the clips on the horizontal connecting plate are inserted into the vertical steel bar; finally, insert the second or more vertical steel bars into the other clips on the horizontal connecting plate to complete the assembly of the vertical bar unit.

13. The method for constructing a steel-concrete frame-shear wall building structure according to claim 12, characterized in that: The vertical sides of the angle steel are provided with full-length steel bars; The installer also includes a steel ball. The vertical wall of the first slot is provided with a first bowl-shaped side hole, and the vertical wall of the second slot is provided with a second bowl-shaped side hole. When the first plug-in block and the second plug-in block are combined, the first bowl-shaped side hole and the second bowl-shaped side hole are connected to form a horizontal channel. The steel ball is located in the channel. The steel ball can translate in the channel and partially penetrate into the first slot or the second slot; when the horizontal connecting piece is inserted into the first slot, the steel ball is squeezed and translated by the horizontal connecting piece and partially penetrates into the second slot, and a part of the steel ball is stuck under the steel bar of the angle steel.

14. The method for constructing a steel-concrete frame-shear wall building structure according to claim 13, characterized in that: An inclined surface is arranged at the entrance of the first slot.

15. The method for constructing a steel-concrete frame-shear wall building structure according to claim 12, characterized in that: The cross section of the support plate is V-shaped.

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