A spliced special-shaped cold-formed steel-reinforced concrete column module for a steel structure building
By designing a variety of column modules, using cold-formed steel plate bending and fastener assembly technology, the problems of insufficient load-bearing capacity of cold-formed steel structural columns in high-rise buildings and high cost of water and electricity pipeline layout are solved, and a higher structure is achieved Performance and lower construction costs.
Patent Information
- Application Number
- CN202010243137.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-03-31
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2040-03-31
AI Technical Summary
The existing cold-formed steel structural columns lack the load-bearing capacity and buckling resistance in high-rise buildings and large-span space applications, and fixing devices need to be strengthened when laying out hydropower pipelines, resulting in weakening structural performance and increasing construction costs.
The corner column module, side column module and middle column module are designed. Multiple cold-formed steel plates are bent and then synthesized into special-shaped steel bones of different cross-sectional shapes through fasteners. The inner cavity is filled with concrete or lightweight concrete, and clamps are set on the periphery. The corner surfaces and grooves are used to fix the wall panels and water and electricity lines to reduce the impact on the structure.
It improves the load-bearing capacity and buckling resistance of the structure, meets the needs of high-rise buildings, reduces the cost of water and electricity pipeline layout, avoids weakening of structural performance, and reduces construction costs.
Smart Images
Figure CN111305559B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of steel structure buildings, in particular to a spliced special-shaped cold-formed steel-frame concrete column module of a steel structure building. Background Art
[0002] Compared with traditional reinforced concrete and ordinary steel structure systems, cold-formed steel structure systems have more diversified shapes, lighter structures, no pollution on site, lower construction costs, and higher comprehensive benefits. They have become an important component and development trend of prefabricated steel structure buildings.
[0003] Cold-formed steel structure columns are the most important load-bearing components of cold-formed steel structure systems. Among them, cold-formed steel structure corner columns are not only subject to vertical loads such as the deadweight of the structure, but also to wind loads, earthquake forces, etc. Its bearing capacity, anti-buckling capacity and other characteristics are highly valued. At the same time, cold-formed steel structure corner columns have the highest probability of contact with the external environment, so their fire resistance and anti-corrosion properties are also of great concern. Cold-formed steel structure side columns are directly or indirectly subject to the constant loads transmitted by beams, plates, walls and other components, and are more susceptible to eccentricity than cold-formed steel structure middle columns. Its bearing capacity, anti-buckling capacity and other characteristics are highly valued. Cold-formed steel structure middle columns are not only directly or indirectly subject to internal forces transmitted by beams, plates, walls and other components, but also to their bearing performance, seismic performance, fire resistance and anti-corrosion performance. Cold-formed steel structure middle columns are also the most diverse and flexible components in the splicing form of cold-formed steel houses. Existing studies on cold-formed steel structural columns are mostly composed of C-shaped, U-shaped, and Z-shaped cold-formed steels, and most of their different cross-sectional forms have defects such as low anti-buckling strength and bearing capacity, and most studies do not distinguish between the stress performance of different types of structural columns. As a result, cold-formed steel structural systems are mostly limited to low-rise buildings with small depths and small spans, and it is difficult to meet the society's demand for large-span spaces and high-rise buildings. In addition, although the combination of cold-formed steel structural columns and prefabricated wall panels provides support for the placement of water and electricity pipelines, strengthening fixtures are still required in actual construction. This process will not only weaken the performance of the structural columns to varying degrees, but the procurement and on-site construction of the reinforcement devices will also increase the construction cost of erecting water and electricity pipelines. Summary of the invention
[0004] The main purpose of the present invention is to provide a column module which can overcome the defects of the above-mentioned cold-formed steel structure columns and is suitable for constructing multi-story and high-rise steel structure buildings.
[0005] The spliced special-shaped cold-formed steel-concrete column modules of the steel structure building provided by the present invention include corner column modules, side column modules and center column modules, each column module includes special-shaped steel frames with different cross-sectional shapes that are spliced together by fasteners after bending multiple cold-formed steel plates, concrete or lightweight concrete is poured into the inner cavity of each special-shaped steel frame, and the periphery of each special-shaped steel frame is provided with an angle surface for fixing assembled wall panels and a groove for arranging water and electricity pipelines.
[0006] In one implementation of the above technical solution, the cross-sectional shapes of the special-shaped steel frames of the corner column module, the side column module and the middle column module are L-shaped, T-shaped and cross-shaped respectively.
[0007] In one implementation of the above technical solution, the inner cavities of the special-shaped steel frames of the corner column module, the side column module and the middle column module are all equipped with reinforcing steel frames of the same length as the special-shaped steel frames.
[0008] In one embodiment of the above technical solution, the cross-sectional shape of the reinforcing steel frame of the corner column module is a cross-shaped offset to the center, including a pair of adjacent long sides and another pair of adjacent short sides; the cross-sectional shape of the reinforcing steel frame of the side column module is a cross-shaped offset to the center, including three long sides and one short side; the cross-sectional shape of the reinforcing steel frame of the middle column module is a regular cross.
[0009] In one embodiment of the above technical solution, the special-shaped steel frames of the corner column module, the side column module and the middle column module respectively include one, two and four identical multi-bend plates, which are staggered inwards and outwards along the width direction of the plate body and are bent in sequence for a cardinal number of times greater than or equal to five times to form.
[0010] In one embodiment of the above technical solution, the corner column module further includes two connecting plates, the cross-sectional shape of the connecting plates is a U-shape with an outer folded edge on one side of the open end, and also includes angle plates respectively spliced with the connecting plates, and the cross-sectional shape of the angle plates is an L-shape; the outer sides of the two long sides of the reinforcing steel frame of the corner column module are clamped between the multi-bending plates and the outer folded edges of the connecting plates, the two short sides of the reinforcing steel frame are respectively fitted with the side plates of the connecting plates without outer folded edges, and the two folded edges of the angle plates are respectively fitted with the outer surfaces of the closed ends of the connecting plates, and each fitting is tightened into a whole by fasteners; the angle plates A cavity for arranging water and electricity pipelines is formed between the two short sides of the reinforced steel frame, and concrete or lightweight concrete is poured into the other inner cavities of the steel frame; the water and electricity pipelines in the cavity can be supported and fixed by screwing in fasteners; the angles on both sides of the joint surfaces of the multi-bend plate and the outer edges of the connecting plate can be used as the grooves for arranging water and electricity pipelines, and the outer sides of the water and electricity pipelines can be used as lateral supports through fasteners; the two angled surfaces of the middle multiple bends of the multi-bend plate are used to fix the inner side panels of the corner wall panels, and the outer surfaces of the two side panels of the corner plate are used to fix the outer side panels of the corner wall panels.
[0011] In one embodiment of the above technical solution, the side column module also includes a connecting plate with a convex head cross-section shape, and the outer edge of the short side of the reinforcing steel frame of the side column module is vertically connected to a U-shaped plate with an opening facing the reinforcing steel frame; the two multi-bending plates of the side column module are relatively symmetrically arranged with an outer folding edge, and the outer side of the long side of the reinforcing steel frame of the side column module that is collinear with the short side is clamped between the outer folding edges of the two multi-bending plates, and the other two collinear long sides are respectively attached to the other outer folding edges of the two multi-bending plates, and the two outer folding edges of the connecting plate of the side column module are respectively attached to the outer surfaces of the two collinear long sides of the reinforcing steel frame The U-shaped plate is fitted together, and the inner surface of the closed end of the connecting plate is fitted with the outer surface of the closed end of the U-shaped plate; each fitting surface is screwed into a whole by fasteners, and concrete or lightweight concrete is poured into the inner cavity of the steel frame; the angles on both sides of each outer folding edge joint surface can be used as the groove for arranging water and electricity pipelines, and the outer side of the water and electricity pipelines can be used as lateral support by fasteners; the two angle surfaces of the middle multiple bending of the two multi-bending plates are respectively used to fix the inner side panels of the exterior wall panels and the two side panels of the interior wall panels perpendicular to the exterior wall panels, and the outer surface of the closed end of the connecting plate is used to fix the outer side panels of the exterior wall panels.
[0012] In one embodiment of the above technical solution, the four multi-bend plates of the center column module are arranged relatively symmetrically with their outer edges, and the outer sides of the four sides of the reinforced steel frame of the center column module are respectively clamped between the outer edges of the two multi-bend plates; each joint is screwed into a whole by fasteners, and concrete or lightweight concrete is poured into the inner cavity of the steel frame; the two side angles of the joint of the outer edges of each multi-bend plate can be used as the grooves for arranging water and electricity pipelines, and the outer sides of the water and electricity pipelines can be used as lateral supports through fasteners; the two angle surfaces of the middle multiple bends of the four multi-bend plates are respectively used to fix the two side panels of the interior wall panels that are perpendicular to each other.
[0013] In one implementation of the above technical solution, the fastener is a self-tapping screw.
[0014] In one implementation of the above technical solution, the tops of the structural plates and the tops of the reinforcing steel frames of the corner column modules, the side column modules and the center column modules are symmetrically provided with lifting holes for facilitating the assembly operation.
[0015] The present invention distinguishes the stress performance of different types of structural columns, and designs corner column modules, side column modules and middle column modules respectively. Each column module uses multiple cold-formed steel plates to be bent and assembled into special-shaped steel frames with different cross-sectional shapes through fasteners to meet the different performance requirements of different types of structural columns. Since the rigidity of the steel plate is greatly improved after bending, its bearing capacity and anti-bending ability are greatly improved. In addition, the different bending times and forming shapes of each forming plate of the special-shaped steel frame can be flexibly determined according to the performance requirements of different types of column modules, so that different types of column modules of the present invention can be used to meet the social needs for large-span spaces and high-rise buildings. The bending of the steel plate can be mass-produced, that is, each column module can be mass-assembled and produced in a factory, with high production efficiency. The integral steel frame is poured into concrete or lightweight concrete as a column module after production in the factory, and its bearing capacity and anti-buckling ability are further improved, and the fire resistance of the column module is also improved. After the column modules are assembled and formed in the factory, since the special-shaped steel frames of each column module have angled surfaces for fixing the inner and outer panels of the wall respectively, when transported to the construction site, the column modules can be stacked and nested through the angled surfaces, which can save transportation space and reduce damage during transportation. There are also grooves for arranging water and electricity pipelines on the periphery of the column modules, and the water and electricity pipelines in the grooves can be supported laterally by the fasteners of the assembled steel frames, so that the arrangement and installation of the water and electricity pipelines do not require the setting of pipeline reinforcement fixing devices, making the installation of the water and electricity pipelines convenient and quick, and avoiding the weakening of the performance of the structural columns caused by the setting of reinforcement fixing devices in the prior art, and can also reduce the construction cost of installing water and electricity pipelines. When the column modules of the present invention are transported to the site for assembly, since the special-shaped steel frames of each column module have angled surfaces for fixing the wall panels on the periphery, after the column modules are installed in place, the wall panels can be fixed to the special-shaped steel frames through the fasteners, and the installation operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional schematic diagram of the assembly of a corner column module and a corner wall panel of a steel structure building according to an embodiment of the present invention.
[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the central corner column module.
[0018] Figure 3 for Figure 2 Schematic diagram of the assembly of special-shaped steel frames and reinforced steel frames.
[0019] Figure 4 for Figure 3 Schematic diagram of the structure after removing the corner plate.
[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the reinforced steel frame.
[0021] Figure 6 for Figure 3 Schematic diagram of the structure of the central connection board.
[0022] Figure 7 for Figure 3 Schematic diagram of the structure of the middle angle plate.
[0023] Figure 8 This is a cross-sectional diagram of the corner column module after water and electricity pipelines and wall panels are installed on site.
[0024] Fig. 9 It is a three-dimensional schematic diagram of the assembly of the side column module of this embodiment with the steel structure building exterior wall panel and the interior wall panel perpendicular to the exterior wall panel.
[0025] Fig.10 for Fig. 9 Schematic diagram of the structure of the middle and side column modules.
[0026] Fig.11 for Fig.10 Schematic diagram of the assembly of special-shaped steel frames and reinforced steel frames.
[0027] Fig.12 for Fig.10 Schematic diagram of the structure after removing the connecting plate.
[0028] Fig.13 for Figure 1 Schematic diagram of the structure of the central connection board.
[0029] Fig.14 Schematic diagram of the cross section of the corner column module after the installation of water and electricity pipelines and wall panels on site.
[0030] Fig.15 It is a three-dimensional schematic diagram of the assembly of the central column module of this embodiment and the vertical wall panels indoors of the steel structure building.
[0031] Fig.16 for Fig.15 Schematic diagram of the structure of the center column module.
[0032] Fig.17 for Fig.16 Schematic diagram of the assembly of special-shaped steel frames and reinforced steel frames.
[0033] Fig.18 This is a schematic diagram of the cross section of the center column module after the water and electricity pipelines and wall panels are installed on site.
[0034] Fig.19 It is a schematic diagram of the structure of the multi-bent plates in the corner column module, the side column module and the middle column module of this embodiment. DETAILED DESCRIPTION
[0035] The assembled special-shaped cold-formed steel-framed concrete column modules of the steel structure building disclosed in this embodiment include corner column modules I, side column modules II and middle column modules III. During on-site construction of the assembled steel structure building, the corner column modules are fixed to the corners of the building's exterior walls, the side edges of the exterior wall panels in two directions of the corners are fixed to the corner column modules respectively, the side column modules are fixed to the positions of the interior depth partition walls on the side lines of the building's exterior walls corresponding to the positions, and the middle column modules are fixed to the intersections of the interior depth partition walls and the bay partition walls.
[0036] Each column module is mass-produced in the factory and transported to the construction site for installation. After each column module is installed and fixed, the water and electricity pipelines are installed and fixed at each column module according to the design requirements, and then each wall panel is installed. The wall panel can also be made in the factory with thermal insulation materials sandwiched between the inner and outer panels. The side edge of the wall panel in the height direction reserves the connection width with the corresponding column module. The wall panels at different locations are fixed on site to the reserved installation positions of the corresponding column modules through fasteners. The fasteners are self-tapping screws.
[0037] The steel frame of each column module includes a special-shaped steel frame and a reinforcing steel frame assembled in its inner cavity, and the reinforcing steel frame is of the same height as the special-shaped steel frame. The special-shaped steel frame of each column module is made of multiple cold-formed steel plates that are bent and assembled into different cross-sectional shapes according to its performance requirements.
[0038] Combination Figures 1 to 8 and Fig.19 It can be seen that:
[0039] The cross-sectional shape of the special-shaped steel frame of the corner column module I is L-shaped, and the cross-sectional shape of the reinforcing steel frame JQGG assembled in the inner cavity of the special-shaped steel frame is a cross-shaped shape, including a pair of adjacent long sides and another pair of adjacent short sides.
[0040] Combination Figures 1 to 3 It can be seen that the special-shaped steel frame of the corner column module I includes a five-bend plate WWB, two connecting plates LB and an angle plate JB. The five-bend plate is formed by five 90-degree bends inward and outward along the width direction of the plate body. The cross-sectional shape of the connecting plate is a U-shape with an outer folded edge on one side of the open end, and the cross-sectional shape of the angle plate is an L-shape.
[0041] When the steel frames of the corner column module are assembled, the outer sides of the two long sides of the reinforcing steel frame JQGG are clamped between the outer folding edges of the five-fold bend plate WWB and the connecting plate LB, the two short sides of the reinforcing steel frame are respectively fitted with the side panels of the connecting plate without outer folding edges, and the two folding edges of the angle plate JB are respectively fitted with the outer sides of the closed ends of the connecting plates, and each fitting is tightened into a whole by self-tapping screws.
[0042] The two short sides of the angle plate JB and the reinforcing steel frame JQGG form a cavity for arranging water and electricity pipelines. The angles on both sides of the joint surface of the outer folding edge of the five-bend plate WWB and the connecting plate LB can be used as 90-degree grooves for arranging water and electricity pipelines. Figure 8 shown.
[0043] Note that when tightening the five-fold bend plate, the long side of the reinforcing steel frame and the outer folded edge of the connecting plate, the self-tapping screws are arranged crosswise and staggered left and right to form a row of self-tapping screw heads on both sides; when the side plate of the connecting plate without folded edges is tightened with the short side of the reinforcing steel frame, the self-tapping screw heads extend into the inner cavity to facilitate the layout of the water and electricity pipelines on site.
[0044] After the steel frame is assembled, concrete or lightweight concrete is poured into the other cavities of the steel frame. The entire corner column module I is an integral part of the steel frame and concrete or lightweight concrete. Figure 2 As shown, the bearing capacity and bending resistance are provided by steel frame and concrete or lightweight concrete.
[0045] The above operations of the corner column modules are all completed in the factory. The manufactured corner column modules are transported to the site for assembly with other structural parts, such as water and electricity pipelines, exterior wall panels, etc.
[0046] When laying water and electricity pipelines on site, the pipelines in the cavity can be fixed by nailing self-tapping screws. The outer side of the pipeline at the 90-degree groove is supported laterally by a row of self-tapping screw heads, such as Figure 8 shown.
[0047] Combination Figures 9 to 14 and Fig.19 It can be seen that:
[0048] Combination Figures 9 to 11 It can be seen that the cross-sectional shape of the special-shaped steel frame of the side column module II is T-shaped, and the cross-sectional shape of the reinforcing steel frame JQGG assembled in the inner cavity of the special-shaped steel frame is a cross-shaped shape, including three long sides and one short side.
[0049] The special-shaped steel frame of the side column module II includes two five-bend plates WWB and a connecting plate LB. The two five-bend plates have the same structure as the five-bend plates of the corner column module I. The cross-sectional shape of the connecting plate LB is a convex head shape.
[0050] In order to improve the strength of the center plane in the width direction of the joint plate, a U-shaped plate is vertically connected to the outer end of the short side of the reinforcing steel frame, and the open end of the U-shaped plate faces the reinforcing steel frame. The U-shaped plate is formed by bending a cold-formed steel plate.
[0051] When the steel frames of the side column module II are assembled, the two five-fold plates are symmetrically arranged in parallel with one outer folded edge, the outer side of the long side with the short sides of the reinforcing steel frame is clamped between the two outer folded edges, and the other two colinear long sides are respectively fitted with the other outer folded edges of the two multi-folded plates. The two outer folded edges of the connecting plate of the side column module are respectively fitted with the outer side of the two colinear long sides of the reinforcing steel frame, and at the same time, the inner side of the closed end of the connecting plate is fitted with the outer side of the closed end of the U-shaped plate; each fitting surface is screwed into a whole by self-tapping screws.
[0052] After the steel frame of the side column module II is assembled and formed, concrete or lightweight concrete is poured into its inner cavity. The entire side column module II is an integral part of the steel frame and concrete or lightweight concrete. Fig.10 As shown, the bearing capacity and bending resistance are provided by steel frame and concrete or lightweight concrete.
[0053] The angles on both sides of each outer folded edge joint surface of the special-shaped steel frame can be used as 90-degree grooves for arranging water and electricity pipelines.
[0054] The above operations of the side column modules are all completed in the factory. The manufactured side column modules are transported to the site and assembled with other structural parts, such as water and electricity pipelines, interior wall panels, etc.
[0055] When laying water and electricity pipelines on site, the outer side of the pipelines at the 90-degree grooves on the outer periphery of the special-shaped steel frame are supported laterally by a row of self-tapping screw heads, such as Fig.14 shown.
[0056] When the side column module is assembled with the wall panel, the two angled surfaces of the third bend of the two five-bend plates are respectively used to fix the inner side panels of the exterior wall panel and the two side panels of the depth wall panel perpendicular to the exterior wall panel, and the closed end surface of the connecting plate is used to fix the outer side panels of the exterior wall panel.
[0057] Combination Figures 15 to 19 It can be seen that:
[0058] The cross-sectional shape of the special-shaped steel frame of the middle column module III is a cross, and the cross-sectional shape of the reinforcing steel frame JQGG assembled in the inner cavity of the special-shaped steel frame is a cross. The cross shape has good force stability and can avoid eccentricity of the column module.
[0059] The special-shaped steel frame of the middle column module III is surrounded by four five-fold bend plates with the same structure as the corner column module I. When the reinforced steel frame is assembled, the outer sides of its four sides are clamped between the outer folded edges of the two five-fold bend plates, and then tightened with self-tapping screws to form the steel frame of the middle column module III.
[0060] After the steel frame of the middle column module III is assembled and formed, concrete or lightweight concrete is poured into its inner cavity. The entire middle column module III is an integral part of steel frame and concrete or lightweight concrete. Fig.16 As shown, the bearing capacity and stiffness are provided by steel frame and concrete or lightweight concrete.
[0061] The angles on both sides of each outer folded edge joint surface on the periphery of the special-shaped steel frame can be used as 90-degree grooves for arranging water and electricity pipelines.
[0062] The above operations of the center column module III are all completed in the factory. The manufactured center column module is transported to the site for assembly with other structural parts, such as water and electricity pipelines, interior wall panels, etc.
[0063] When laying water and electricity pipelines on site, the outer side of the pipelines at the 90-degree grooves on the outer periphery of the special-shaped steel frame are supported laterally by a row of self-tapping screw heads, such as Fig.18 Show.
[0064] When the center column module is assembled with the wall panel, the two angled surfaces of the third bend of each five-bend plate are respectively used to fix the two side panels of the interior wall panel in two directions perpendicular to each other.
[0065] Each structural plate of the special-shaped steel frame of each column module is formed by bending cold-formed steel plates, and the reinforcement steel frame can be formed by cold-bending cold-formed steel and then welding or directly hot-rolling and then welding.
[0066] In order to facilitate the assembly operation, hoisting holes DZK are symmetrically arranged on the top of each structural plate of each column module, and the hoisting holes are processed before each structural plate is formed.
[0067] When making each column module, in addition to determining the inner cavity size and shape of each special-shaped steel frame according to the wall thickness requirements and the force performance requirements of each column module, the inner cavity size of each special-shaped steel frame must also ensure that concrete or lightweight concrete can be poured smoothly without blockage, and that water and electricity pipelines can be placed in the cavity inside the steel frame of the corner column module; after each column module is assembled and formed, it must also ensure that the water and electricity pipelines can be placed in the 90-degree groove on the periphery of the special-shaped steel frame, and at the same time ensure that the self-tapping screws can effectively serve as lateral supports, so it is also necessary to consider the appropriate width of the outer folding edge of each special-shaped steel frame and the appropriate specifications and length of the self-tapping screws.
[0068] The strength grade of the concrete or lightweight concrete poured into the inner cavity of each column module shall not be lower than C20 or M10.
[0069] In summary, each column module of the present invention has the following advantages:
[0070] (1) The above structure of the column module is convenient for engineering design, and each component has large bending stiffness and significantly improved torsional strength, which can meet the social demand for large-span spaces and high-rise buildings.
[0071] (2) Compared with steel tube concrete columns without steel frames, the special-shaped steel frames composed of cold-formed steel plates improve the restraint effect on concrete and the stability of corner columns, thereby improving the bearing capacity and ductility of the columns.
[0072] (3) All special-shaped steel frames can be made of cold-formed steel, and lightweight concrete can be poured inside, which can effectively reduce the self-weight of the components, thereby reducing the cross-sectional size of the components, reducing the construction cost, and improving the seismic performance of the building.
[0073] (4) The concrete or lightweight concrete poured in the inner cavity of the special-shaped steel frame has a large heat capacity and can effectively absorb the heat transferred from the outer forming plates, protecting the internal reinforced steel frame from the influence of high temperature. Once the outer forming plates are destroyed by fire, the reinforced steel frame can still provide a certain bearing capacity for the column module, thereby improving the fire resistance of the column module.
[0074] (5) All structural components of the column module can be mass-produced in the factory, which has high production efficiency, reduces the workload on the construction site, and improves the efficiency of building construction.
[0075] (6) The multi-bend plate of each column module can effectively reduce the calculated width of the cold-formed steel plate, thereby improving the ability of the column member to resist local buckling. In addition, each column module can be stacked and fixed, which is convenient for saving space during transportation and reducing transportation damage.
[0076] (7) The lifting holes on each forming plate of each column module are arranged symmetrically, and the lifting process is simpler than that of traditional spliced components.
[0077] (8) When the column modules are assembled on site, the cavity of the steel frame and the 90-degree grooves on the periphery of the steel frame can facilitate the internal installation and fixation of water and electricity pipelines without the need to set up reinforcing fixing devices. This is convenient to operate and saves water and electricity installation costs.
[0078] In some special cases, when the angle between the walls in two directions at the corner of the prefabricated steel structure building is not a right angle, it is only necessary to bend the inner and outer fixing plates used to fix the angled surfaces of the wall panels according to the actual angle, but various performance requirements of the column modules must be considered during other bending processes.
Claims
1. A spliced special-shaped cold-formed steel-reinforced concrete column module for a steel structure building, characterized in that: It includes a corner column module, a side column module and a middle column module. Each column module uses a plurality of cold-formed steel plates that are bent and assembled by fasteners to form special-shaped steel frames with different cross-sectional shapes. Concrete or lightweight concrete is poured into the inner cavity of each special-shaped steel frame. The periphery of each special-shaped steel frame has an angle surface for fixing the assembled wall panel and a groove for arranging water and electricity pipelines. The cross-sectional shapes of the special-shaped steel frames of the corner column module, the side column module and the middle column module are L-shaped, T-shaped and cross-shaped respectively; The inner cavities of the special-shaped steel frames of the corner column module, the side column module and the middle column module are all equipped with reinforcing steel frames of the same length as the special-shaped steel frames; The cross-sectional shape of the reinforcing steel frame of the corner column module is a cross-shaped cross, including a pair of adjacent long sides and another pair of adjacent short sides; the cross-sectional shape of the reinforcing steel frame of the side column module is a cross-shaped cross, including three long sides and one short side; the cross-sectional shape of the reinforcing steel frame of the middle column module is a regular cross; The special-shaped steel frames of the corner column module, the side column module and the middle column module respectively include one, two and four identical multi-bend plates, which are staggered inwards and outwards along the width direction of the plate body and are bent in sequence for a cardinal number of times greater than or equal to five times to form; The corner column module also includes two connecting plates, the cross-sectional shape of the connecting plates is a U-shape with an outer folding edge on one side of the open end, and also includes angle plates respectively spliced with the connecting plates, and the cross-sectional shape of the angle plates is an L-shape; the outer sides of the two long sides of the reinforcing steel frame of the corner column module are clamped between the multi-bending plate and the outer folding edges of the connecting plate, the two short sides of the reinforcing steel frame are respectively fitted with the side plates of the connecting plate without outer folding edges, and the two folding edges of the angle plate are respectively fitted with the outer surface of the closed end of the connecting plate, and each fitting is screwed into a whole by fasteners; a cavity for arranging water and electricity pipelines is enclosed between the angle plate and the two short sides of the reinforcing steel frame, and concrete or lightweight concrete is poured into the other inner cavities of the steel frame; the water and electricity pipelines in the cavity can be supported and fixed by screwing in fasteners; The angles on both sides of the joint surface of the multi-bending plate and the outer folding edge of the connecting plate can be used as the grooves for arranging water and electricity pipelines, and the outer sides of the water and electricity pipelines can be used as lateral supports through fasteners; the two angled surfaces of the middle multiple bends of the multi-bending plate are used to fix the inner side panels of the corner wall panels, and the outer surfaces of the two side panels of the corner plate are used to fix the outer side panels of the corner wall panels; The side column module also includes a connecting plate with a convex head cross-section shape, and the outer edge of the short side of the reinforcing steel frame of the side column module is vertically connected with a U-shaped plate with an opening facing the reinforcing steel frame; the two multi-bending plates of the side column module are relatively symmetrically arranged with an outer folding edge, the outer side of the long side of the reinforcing steel frame of the side column module that is collinear with the short side is clamped between the outer folding edges of the two multi-bending plates, and the other two collinear long sides are respectively fitted with the other outer folding edges of the two multi-bending plates, and the two outer folding edges of the connecting plate of the side column module are respectively fitted with the outer surfaces of the two collinear long sides of the reinforcing steel frame, and the connecting plate The inner surface of the closed end is fitted with the outer surface of the closed end of the U-shaped plate; each fitting surface is screwed together into a whole by fasteners, and concrete or lightweight concrete is poured into the inner cavity of the steel frame; the angles on both sides of each outer folding edge joint surface can be used as the groove for arranging water and electricity pipelines, and the outer side of the water and electricity pipelines can be used as lateral support by fasteners; the two angle surfaces of the middle multiple bends of the two multi-bending plates are respectively used to fix the inner side plate of the exterior wall panel and the two side plates of the interior wall panel perpendicular to the exterior wall panel, and the outer surface of the closed end of the connecting plate is used to fix the outer side plate of the exterior wall panel; The four multi-bend plates of the central column module are arranged relatively symmetrically with their outer folded edges, and the outer sides of the four sides of the reinforced steel frame of the central column module are respectively clamped between the outer folded edges of the two multi-bend plates; each joint is tightened into a whole by fasteners, and concrete or lightweight concrete is poured into the inner cavity of the steel frame; the two side angles of the joint of the outer folded edges of each multi-bend plate can be used as the grooves for arranging water and electricity pipelines, and the outer sides of the water and electricity pipelines can be used as lateral supports by fasteners; the two angle surfaces of the middle multiple bends of the four multi-bend plates are respectively used to fix the two side panels of the interior wall panels that are perpendicular to each other.
2. The combined special-shaped cold-formed steel-framed concrete column module for a steel structure building as claimed in claim 1, characterized in that: The fasteners are self-tapping screws.
3. The combined special-shaped cold-formed steel-framed concrete column module for a steel structure building as claimed in claim 1, characterized in that: The tops of the structural plates and the tops of the reinforcing steel frames of the corner column modules, the side column modules and the middle column modules are symmetrically provided with lifting holes for facilitating the splicing operation.