A composite structure building

Abstract

The present invention provides a composite structure building, which includes a steel frame wall structure, a crossbeam and a floor; the steel frame wall structure includes a wall, a steel column and a glass wool board; the steel column is embedded in the wall; in the wall thickness direction, the glass wool board is arranged on the indoor side and / or outdoor side of the steel column, and is used to block the steel column from transferring heat flow between the indoor and outdoor sides of the wall as a thermal bridge. The present invention has a significant thermal insulation effect and low cost. The glass wool board is laid on the outdoor side or indoor side of the steel column, thereby effectively reducing the heat transfer caused by the steel column as a thermal bridge, eliminating the heat flow concentration on the indoor and outdoor sides of the wall at the steel column, and greatly improving the thermal insulation performance of the wall, so that the wall can meet the design requirements of green energy saving of 75% energy saving of residential buildings and heat transfer coefficient <0.45W / (m2·K).

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving steel structure residential building structure, in particular to a combined structure building suitable for steel frame side columns and embedded walls. Background Art

[0002] Compared with reinforced concrete structures, steel structures have advantages such as light weight and high strength, and are gradually being used more widely in engineering project construction. However, due to the high thermal conductivity of steel itself (about 33 times that of concrete), the thermal bridge effect of steel structure buildings is more significant, and the energy-saving problem is more serious. my country started late in analyzing the thermal bridge of steel structure building systems, and has not yet formed a complete energy-saving measure. There are some problems in the construction and selection of energy-saving products for steel structure energy-saving houses to varying degrees, which have a great impact on the thermal performance and normal use of residential envelope structures. Summary of the invention

[0003] The purpose of the invention is to provide a combined structure building to address the problems of obvious thermal bridge phenomenon in existing steel structures, failure to meet the energy-saving design requirements of residential buildings, and high cost of existing foreign technologies. The wall structure of the invention is simple, the cost is low, and the thermal insulation performance is good.

[0004] In order to solve the above technical problems, the present invention provides a composite structure building, comprising: a steel frame wall structure, a beam, and a floor; the steel frame wall structure comprises: a wall, a steel column, and a glass wool board; the steel column is embedded in the wall; in the wall thickness direction, the glass wool board is arranged on the indoor side and / or outdoor side of the steel column, and is used to block the steel column from acting as a thermal bridge to transfer heat flow between the indoor and outdoor sides of the wall;

[0005] In the horizontal projection plane, the floor comprises a floor slab arranged indoors and a cantilever slab arranged outdoors; the floor slab and the cantilever slab are connected via an anti-cold and heat bridge node; the anti-cold and heat bridge node comprises a sandwich plate, a first steel plate and a second steel plate;

[0006] The sandwich panel comprises a first metal panel, a second metal panel, a plurality of node connectors, an annular sealing plate and a heat-insulating material; the annular sealing plate is fixedly connected between the first metal panel and the second metal panel which are arranged opposite to each other, and is surrounded by the first metal panel and the second metal panel to form a sealed cavity; one end of the node connector is fixedly connected to the first metal panel, and the other end is fixedly connected to the second metal panel, and is arranged in the sealed cavity; the heat-insulating material is filled in the sealed cavity;

[0007] The first steel bar pad is welded on the surface of the first metal panel facing away from the second metal panel, and a plurality of floor steel bars extending toward the indoor side and entering the floor are welded on the first steel bar pad;

[0008] The second steel bar pad is welded to the surface of the second metal panel on one side facing away from the first metal panel, and a plurality of cantilever plate steel bars extending toward the outdoor side and entering the cantilever plate are welded to the second steel bar pad.

[0009] Furthermore, on a projection plane perpendicular to the wall, the glass wool board (its surface) does not cover the entire wall, and the glass wool board (its surface) covers all or part of the steel columns.

[0010] The present invention has remarkable thermal insulation effect and low cost. Glass wool boards are laid on the outdoor side surface or indoor side surface of the steel column, thereby effectively reducing the heat transfer caused by the steel column acting as a thermal bridge, eliminating the heat flow concentration on both sides of the indoor and outdoor walls at the steel column, and greatly improving the thermal insulation performance of the wall, so that the wall can meet the green energy-saving design requirements of 75% energy saving and heat transfer coefficient <0.45W / (m2•K) of residential buildings.

[0011] Furthermore, on a projection plane perpendicular to the wall, left and right sides of the glass wool board protrude from the steel columns and are embedded in the wall.

[0012] The glass wool board is appropriately extended on the left and right sides of the steel column (outer or inner) flange, further improving the blocking performance of the heat bridge heat transfer of the steel column and improving the thermal insulation performance of the wall. The glass wool board is embedded in the wall, and is not prone to edge and bulging, and the installation is more secure.

[0013] Furthermore, in the direction of wall thickness, several layers of the glass wool board are arranged on the indoor side and / or outdoor side of the steel column; two adjacent layers of the glass wool board include an inner layer of glass wool board close to the steel column, and an outer layer of glass wool board away from the steel column.

[0014] Furthermore, on a projection plane perpendicular to the wall, the left and right sides of the outer glass wool board protrude beyond the inner glass wool board; on a horizontal cross-section of the wall, several layers of the glass wool boards are respectively embedded on the wall in an inverted pyramid (staircase) shape.

[0015] On the horizontal cross-section of the wall, several layers of the glass wool boards are arranged in an (inverted pyramid) stepped shape. The heat conduction efficiency of the steel column is normally distributed, and the heat transfer amount is most intensive in the central area facing the steel column, while the heat transfer amount on the left and right sides gradually decreases. Several layers of the glass wool boards are arranged in an inverted pyramid shape on one side of the steel column, which can effectively block the heat transfer from the front of the steel column while also blocking the heat scattering on both sides of the steel column. In addition, several layers of the glass wool boards are arranged in an inverted pyramid shape, and the left and right sides of each glass wool board can be embedded in the wall, thereby ensuring that each glass wool board will not warp or bulge within the building life of several decades after installation. Under the premise of ensuring that the building energy-saving design standards are met, the building energy-saving cost is reduced. The present invention can be widely used in the field of exterior wall insulation of steel frame structures.

[0016] Furthermore, the steel column is an H-shaped steel column, and the glass wool board is laid on the outer side surface of the outer flange or inner flange of the H-shaped steel column.

[0017] The glass wool board is attached to the wall by adhesive; more preferably, a connecting anchor bolt is provided between the wall and the glass wool board, and the glass wool board is further fastened by the connecting anchor bolt after being attached to the wall by adhesive. The glass wool board is fixed by both adhesive and anchor bolt to ensure the overall performance of the insulation layer and the wall.

[0018] Furthermore, the wall is an aerated concrete wall built with aerated concrete blocks; the aerated concrete wall extends into (the aerated concrete blocks are built into) a U-shaped groove between the outer flange and the inner flange of the H-shaped steel column.

[0019] The aerated concrete blocks are sawed at the H-shaped steel columns so that the H-shaped steel columns and the wall body form a whole, thereby strengthening the rigidity of the steel columns and improving the overall stability of the wall body.

[0020] Furthermore, a mortar coating layer and a finishing layer are sequentially provided on the side of the outermost glass wool board of the wall facing away from the steel column (i.e., the outer side of the glass wool board), and a glass fiber mesh is laid in the mortar coating layer.

[0021] Furthermore, the number of layers of the glass wool board is 2-6.

[0022] The invention adopts multi-layer mortar coating and facing on the outer surface of the outermost glass wool board, and hangs a glass fiber mesh externally, thereby improving the durability of the thermal insulation material. When the outer area is the same, the thermal insulation wall does not need to be hung externally, and the whole is embedded between the steel structure columns, which can improve the indoor space utilization rate.

[0023] Among them, the cantilever plate can be a cantilevered balcony, a cantilevered air-conditioning panel, a rain shield and other components.

[0024] Preferably, the node connection member is a connecting pipe, a connecting rod, a honeycomb plate or a corrugated plate;

[0025] When the node connection piece is a connection pipe, the connection pipe is filled with heat insulation material.

[0026] Preferably, the node connector and the annular sealing plate are made of fiber-reinforced composite material or plastic. And preferably, the thermal insulation material is rock wool or foamed polyurethane.

[0027] Preferably, the first metal panel is a carbon structural steel plate, a low alloy high strength structural steel plate or a stainless steel plate; the second metal panel is a carbon structural steel plate, a low alloy high strength structural steel plate or a stainless steel plate.

[0028] Preferably, the annular sealing plate includes a bottom sealing plate, a first side sealing plate, a top sealing plate and a second side sealing plate which are connected end to end in the circumferential direction; the bottom sealing plate and the top sealing plate are arranged opposite to each other; the first side sealing plate and the second side sealing plate are arranged opposite to each other; and the steel bars are threaded steel bars.

[0029] During construction, the first metal panel, the second metal panel, a plurality of node connectors and the annular sealing plate are fixedly connected together, and a process hole is reserved on the annular sealing plate;

[0030] Welding steel reinforcement plates to the first metal panel and the second metal panel respectively;

[0031] Steel bars are welded on each steel bar pad;

[0032] Place the reinforcement located on one side of the first metal panel or the second metal panel into the formwork (slab or cantilever formwork);

[0033] Tie the steel bars to the steel bars in the formwork to form a steel skeleton;

[0034] Pour concrete into the formwork;

[0035] Fill the sealing cavity with heat-insulating material through the process hole and squeeze it tightly;

[0036] The process holes are sealed to form prefabricated components with anti-cold and thermal bridge nodes for the floor.

[0037] The anti-cold and heat bridge node of the floor structure of the present invention has the characteristics of simple construction and small on-site workload; rock wool, foamed polyurethane and other insulation materials are filled in the middle of the sandwich panel, and at the same time, the insulation material is embedded in the sealed cavity of the sandwich panel to avoid the formation of thermal bridges in the sandwich panel, that is, a broken bridge structure is formed between the floor slab and the cantilever slab on both sides of the indoor and outdoor, so that the thermal insulation effect is good, the durability of the insulation material is good and there is no risk of falling off; the steel bars are welded to the metal panels through the steel bar pads, and a plurality of node connectors are fixed between the metal panels, so that the anti-cold and heat bridge node has high structural strength and good force-bearing performance.

[0038] Furthermore, it also includes a restraining support member; the two ends of the restraining support member are respectively fixedly connected to the middle part of the steel column and the middle part of the crossbeam;

[0039] The restraining support member includes an outer restraining sleeve and an inner core, a restraining ring and a restraining rod all disposed in the outer restraining sleeve;

[0040] The constraint rod and the inner core are both arranged along the length direction of the outer constraint sleeve. The constraint ring is fixed to the outer constraint sleeve and is sleeved outside the inner core and the constraint rod to fix the inner core to the constraint rod.

[0041] Furthermore, the inner core is in the shape of a long strip; the restraining rods are arranged on both sides of the inner core; or, the inner core is in the shape of a long strip with a cross-shaped cross section, and the restraining rods are arranged at four intervals of the cross.

[0042] Furthermore, the constraint ring includes a plurality of annular constraint steel bars sleeved outside the inner core and the constraint rod; the plurality of annular constraint steel bars are sequentially spaced along the length direction of the constraint rod.

[0043] Furthermore, the restraining ring is an annular restraining steel bar spirally wound outside the inner core, wherein the annular restraining steel bar is preferably a plain round steel bar.

[0044] Furthermore, the restraining rod is a steel rod; the steel rod is welded and fixed to the plain round steel bar.

[0045] Furthermore, an anti-friction layer is provided between the restraining rod and the inner core to reduce the frictional resistance between the restraining rod and the inner core.

[0046] Furthermore, the material of the outer constraint sleeve is mortar, and a reinforcement structure is provided inside the outer constraint sleeve; the reinforcement structure is a steel wire mesh or a glass fiber mesh; the steel wire mesh or the glass fiber mesh is arranged along the circumference of the outer constraint sleeve.

[0047] Furthermore, the two ends of the inner core are respectively provided with connection ends extending out of the outer constraint sleeve; the width of the connection ends is greater than the width of the inner core in the outer constraint sleeve (the middle width of the inner core); and mounting holes are provided on the connection ends. The constraint support is respectively connected to the crossbeam and the column through the mounting holes on the connection ends.

[0048] The buckling restraint support, restraint rod and restraint ring in the present invention restrain the buckling of the inner core and limit the local buckling of the inner core, so that the performance of the core plate can be fully exerted. At the same time, during processing, it is only necessary to put the restraint ring on the inner core and the restraint rod for fixing, which has low requirements and does not require special factory processing. Therefore, the processing is simple and easy to operate. The restraint rod is made of steel rod, the inner core is made of steel core, and the restraint ring is made of plain round steel bar, which are all commonly used materials with low cost and good economy. The outer restraint sleeve is made of mortar to avoid rusting of the anti-buckling support and is maintenance-free during the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 A horizontal cross-sectional schematic diagram of a steel frame wall structure provided in Example 1 of the present invention;

[0051] Figure 2 A schematic diagram of heat conduction blocking in a steel frame wall structure provided in Example 1 of the present invention;

[0052] Figure 3 Schematic diagram of the connection structure of the floor slab, cantilever slab and anti-cold and thermal bridge nodes in Example 2;

[0053] Figure 4 This is a schematic diagram of the structure of the anti-cold and thermal bridge node in Example 2;

[0054] Figure 5 Schematic diagram of the structure of the annular sealing plate in Example 2;

[0055] Figure 6 This is a schematic diagram of the arrangement of the restraining support members in Example 3;

[0056] Figure 7 for Figure 6 AA section view in;

[0057] Figure 8 is a side view of the cross-shaped inner core 62;

[0058] Fig. 9 for Figure 7 FF section view in;

[0059] Fig.10 This is a schematic structural diagram of a web-surface concrete composite component in Example 4 of the present invention;

[0060] Fig.11 for Fig.10 A side view of a T-steel-rebar truss composite hollow member is shown;

[0061] Fig.12 for Fig.10 The front view of the T-steel-rebar truss composite hollow member is shown;

[0062] Fig.13 for Fig.11 Enlarged view at A in the middle;

[0063] Fig.14 for Fig.10 Horizontal cross-sectional view. DETAILED DESCRIPTION

[0064] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] The present invention is further explained below in conjunction with specific implementation modes.

[0068] Example 1

[0069] like Figure 1-2 As shown, a steel frame wall structure provided in this embodiment includes: a wall 4, a steel column 3 and a glass wool board. The steel column 3 is embedded in the wall 4; in the thickness direction of the wall 4, the glass wool board is arranged on the indoor side and / or outdoor side of the steel column 3 to block the steel column 3 from acting as a thermal bridge to transfer heat flow between the indoor and outdoor sides of the wall 4. On the projection plane perpendicular to the wall 4, the size of the glass wool board does not cover the entire wall 4, and the size of the glass wool board only covers all or part of the steel column 3.

[0070] Different from the insulation board or insulation layer which is integrally arranged on the outside of the wall, the glass wool board in the present invention is arranged to block the thermal bridge at the steel column and solve the problem of heat conduction at the local part of the steel column.

[0071] The present invention has a significant thermal insulation effect and low cost. A glass wool board is laid on the outdoor side or indoor side of the steel column 3, thereby effectively reducing the heat transfer caused by the steel column 3 as a thermal bridge, eliminating the heat flow concentration on both sides of the wall 4 at the steel column 3, and greatly improving the thermal insulation performance of the wall 4, so that the wall 4 can meet the requirements of 75% energy saving of residential buildings and heat transfer coefficient <0.45W / (m 2 •K) Green and energy-saving design requirements.

[0072] On a projection plane perpendicular to the wall 4 , protruding steel columns 3 are arranged on the left and right sides of the glass wool board and embedded in the wall 4 .

[0073] The glass wool board is appropriately extended on the left and right sides of the flange of the steel column 3 (outer or inner), further improving the blocking performance of the heat bridge heat transfer of the steel column 3 and improving the thermal insulation performance of the wall 4. The glass wool board is embedded in the wall 4, and is not prone to edge lifting and bulging, and the installation is more secure.

[0074] like Figure 1 and 2 As shown, in the thickness direction of the wall 4, two layers of glass wool boards are arranged on the indoor side and / or outdoor side of the steel column 3; the two adjacent layers of glass wool boards include an inner layer of glass wool board 6 close to the steel column 3, and an outer layer of glass wool board 7 away from the steel column 3. On the projection plane perpendicular to the wall 4, the left and right sides of the outer layer of glass wool board 7 protrude from the inner layer of glass wool board 6; on the horizontal cross section of the wall 4, the two layers of glass wool boards are respectively embedded on the wall 4 in an inverted pyramid (stepped) shape.

[0075] On the horizontal cross section of the wall 4, several layers of glass wool boards are arranged in a stepped (inverted pyramid) shape. Figure 2As shown in the figure, the heat conduction efficiency of the steel column 3 is normally distributed, the heat transfer amount is most intensive in the central area facing the steel column 3, which is the thermal bridge column area 1, while the heat transfer amount on the left and right sides gradually decreases, which are the thermal bridge influence area 2. Several layers of glass wool boards are arranged in an inverted pyramid on one side of the steel column 3, which can effectively block the heat transfer on the front of the steel column 3 and also block the heat scattering on both sides of the steel column 3.

[0076] Furthermore, a plurality of layers of glass wool boards are arranged in an inverted pyramid shape, and the left and right sides of each glass wool board can be embedded in the wall 4, thereby ensuring that each glass wool board will not warp or bulge within the building life of several decades after installation. Under the premise of ensuring that the building energy-saving design standards are met, the building energy-saving cost is reduced. The present invention can be widely used in the field of external wall insulation of steel frame structures.

[0077] If a single-layer glass wool board is to achieve the same thermal bridge blocking effect, the thickness of the glass wool board needs to be increased. However, an overly thick glass wool board is often non-standard and needs to be customized by the manufacturer, which increases the construction cost. In addition, an overly thick glass wool board is too heavy and inconvenient to install, and is easy to fall off after installation. In addition, when a single-layer glass wool board meets the thermal bridge column area 1 insulation effect, there will be excessive insulation measures in the corresponding area of ​​the thermal bridge impact area 2, resulting in material waste.

[0078] The present application can flexibly use 2-6 layers of conventional glass wool boards according to design requirements, and the thickness of each layer of glass wool boards is greatly reduced, which is convenient for installation. After installation, the glass wool boards are not easy to fall off and are more stable. In addition, there is no excessive waste of materials, which is a green and energy-saving construction method.

[0079] In the above embodiment, more preferably, the number of layers of glass wool board is 3-4, and the width of the steel column and the width of the 3-4 layers of glass wool board are arranged in geometric progression, wherein the ratio range is preferably 1.6-2. Taking 3 layers of glass wool board as an example, the width of the inner glass wool board is 1.6-2 times the width of the steel column, the width of the middle glass wool board is 1.6-2 times the width of the inner glass wool board, and the width of the outer glass wool board is 1.6-2 times the width of the middle glass wool board. The heat transfer coefficient of the steel column area is <0.1W / (m 2 •K), while the material of glass wool board can save 42% on average and the economic cost can save 63%.

[0080] The steel column 3 is an H-shaped steel column 3, and the inner glass wool board 6 is laid on the outer side of the outer flange or inner flange of the H-shaped steel column 3 and the wall 4 using adhesive 5. The outer glass wool board 7 is laid on the adhesive 5 and the wall 4 using adhesive 5.

[0081] In addition, a connecting anchor bolt 8 is provided between the wall 4 and the glass wool board. After the glass wool board is attached to the wall 4 by adhesive, it is further fastened by the connecting anchor bolt 8. The glass wool board is fixed by both adhesive and anchor bolt to ensure the overall performance of the insulation layer and the wall 4.

[0082] The wall 4 is an aerated concrete wall constructed by aerated concrete blocks; the aerated concrete wall extends into (the aerated concrete blocks are built into) a U-shaped groove between the outer flange and the inner flange of the H-shaped steel column 3 .

[0083] The aerated concrete blocks are sawn at the H-shaped steel column 3 so that the H-shaped steel column 3 and the wall 4 form a whole, thereby strengthening the rigidity of the steel column 3 and improving the overall stability of the wall 4.

[0084] like Figure 1 As shown, the wall 4 is provided with a first mortar coating layer 9, a second mortar coating layer 11 and a finishing layer 12 in sequence on the side of the outermost glass wool board facing away from the steel column 3 (i.e., the outer side of the glass wool board), and a glass fiber mesh 10 is laid between the first mortar coating layer 9 and the second mortar coating layer 11.

[0085] The present invention uses multi-layer mortar coating and facing on the outer surface of the outermost glass wool board, and hangs a glass fiber mesh externally, thereby improving the durability of the thermal insulation material. When the outer area is the same, the thermal insulation wall 4 does not need to be hung externally, and is integrally embedded between the steel structure columns, thereby improving the utilization rate of the indoor space.

[0086] During construction, the steps are as follows:

[0087] (1) Conduct thermal bridge analysis on the H-shaped steel column 3 and the embedded aerated concrete block composite wall 4, calculate the thermal bridge influence area on the steel column surface, determine the number of glass wool board layers, the thickness of each glass wool board layer, and the protruding length of the outer glass wool board relative to the adjacent inner glass wool board on both sides; for example, calculate the thickness of the inner glass wool board 6 and the outer glass wool board 7, as well as the extension length of the inner glass wool board 6 and the outer glass wool board 7 to both sides of the steel column, so as to meet the requirements of 75% energy saving design of residential buildings and heat transfer coefficient <0.45W / (m2•K).

[0088] (2) According to the results of thermal analysis, cut the inner layer glass wool board 6 and the outer layer glass wool board 7 for use. After cutting, check whether the glass wool board is damaged.

[0089] (3) Aerated concrete blocks are processed according to the cross-sectional dimensions of the H-shaped steel column 3 and are laid in a staggered overlap manner to ensure the overall stability of the wall 4 and improve the thermal insulation performance of the local position of the steel column.

[0090] (4) Prepare a professional adhesive, apply a layer of adhesive evenly on the surface of the H-shaped steel column 3, and lay an inner layer of glass wool board 6.

[0091] (5) Clean the surface of the aerated concrete block, apply a layer of adhesive evenly, and lay an outer layer of glass wool board 7. It is recommended to use up the adhesive within 1 hour.

[0092] (6) Anchor bolts 8 are arranged at a certain interval to fix the two layers of glass wool boards to the wall.

[0093] (7) Mix the base plaster mortar, evenly apply the first mortar coating layer 9 on the surface of the glass wool board, and hang the glass fiber mesh 10 after the base mortar solidifies; then apply the second mortar coating layer 11 on the surface; finally, apply the finishing paint or finishing layer 12 on the surface.

[0094] Example 2

[0095] This embodiment discloses a composite structure building with the steel frame wall structure in Embodiment 1. The composite structure building includes: beams, steel columns, walls and floor slabs.

[0096] like Figure 3 As shown, in the horizontal projection plane, the floor 50 of the composite structure building includes a floor slab 51 arranged indoors and a cantilever slab 52 arranged outdoors; the floor slab 51 and the cantilever slab 52 are connected by an anti-cold and thermal bridge node 53.

[0097] like Figure 4 and 5 As shown, the anti-cold and thermal bridge node 53 includes a sandwich plate, a first steel bar pad 53c and a second steel bar pad 53d; the sandwich plate includes a first metal panel 53a, a second metal panel 53b, a plurality of node connectors 56, an annular sealing plate 54 and a thermal insulation material 55 (i.e., thermal insulation material); the annular sealing plate 54 is fixedly connected between the first metal panel 53a and the second metal panel 53b that are arranged opposite to each other, and is surrounded by the first metal panel 53a and the second metal panel 53b to form a sealed cavity; one end of the node connector 56 is fixedly connected to the first metal panel 53a, and the other end is fixedly connected to the second metal panel 53b, and is arranged in the sealed cavity; the thermal insulation material is filled in the sealed cavity.

[0098] A first steel bar pad 53c is welded to the surface of the first metal panel 53a facing away from the second metal panel 53b, and a plurality of floor steel bars 53e extending toward the inside of the room and entering the floor are welded to the first steel bar pad 53c; the floor steel bars 53e are overlapped or welded to the steel bar skeleton in the floor.

[0099] A second steel plate 53d is welded to the surface of the second metal panel 53b on one side away from the first metal panel 53a, and a plurality of cantilever plate steel bars 53f extending toward the outside and entering the cantilever plate are welded to the second steel plate 53d. The cantilever plate steel bars 53f are overlapped or welded to the steel bar skeleton in the cantilever plate. The cantilever plate can be a cantilever balcony, a cantilever air conditioning panel, a rain shield, or other components.

[0100] Preferably, the node connector 56 is a connecting pipe, a connecting rod, a honeycomb plate or a corrugated plate; when the node connector 56 is a connecting pipe, the connecting pipe is filled with a heat insulating material. More preferably, the node connector 56 and the annular sealing plate 54 are made of fiber reinforced composite material or plastic. Among them, the heat insulating material is rock wool or foamed polyurethane.

[0101] In the above technical solution, preferably, the first metal panel 53a is a carbon structural steel plate, a low alloy high strength structural steel plate or a stainless steel plate; the second metal panel 53b is a carbon structural steel plate, a low alloy high strength structural steel plate or a stainless steel plate.

[0102] like Figure 5 As shown, the annular sealing plate 54 includes a bottom sealing plate, a first side sealing plate, a top sealing plate and a second side sealing plate which are connected end to end in the circumferential direction; the bottom sealing plate and the top sealing plate are arranged opposite to each other; the first side sealing plate and the second side sealing plate are arranged opposite to each other.

[0103] During construction, the first metal panel 53a, the second metal panel 53b, the node connector 56 and the annular sealing plate 54 are fixedly connected together, and a process hole is reserved on the annular sealing plate 54; steel bar pads are welded on the first metal panel 53a and the second metal panel 53b respectively; steel bars are welded on each steel bar pad; the steel bars located on one side of the first metal panel 53a or the second metal panel 53b are placed in the formwork (floor or cantilever formwork); the steel bars are tied to the steel bars in the formwork to form a steel bar skeleton; concrete is poured into the formwork; insulation material is filled into the sealed cavity through the process hole and squeezed densely; the process hole is sealed to form a prefabricated component with an anti-cold and hot bridge node 53 for the floor.

[0104] The anti-cold and heat bridge node 53 of the floor structure of the present invention has the characteristics of simple construction and small on-site workload; rock wool, foamed polyurethane and other insulating materials are filled in the middle of the sandwich panel, and at the same time, the insulating material is embedded in the sealed cavity of the sandwich panel to avoid the formation of thermal bridges in the sandwich panel, that is, a broken bridge structure is formed between the floor slabs and the cantilever slabs on both sides of the indoor and outdoor areas, so that the thermal insulation effect is good, the thermal insulation material is durable and there is no risk of falling off; the steel bars are welded to the metal panels through steel bar pads, and a plurality of node connectors 56 are fixed between the metal panels, so that the anti-cold and heat bridge node 53 has high structural strength and good force-bearing performance.

[0105] Example 3

[0106] This embodiment discloses a combined structure building, which is basically the same as the second embodiment, except that:

[0107] like Figure 6 As shown, the combined structure building includes a restraining support member 60; both ends of the restraining support member 60 are fixedly connected to the middle part of the steel column and the middle part of the beam respectively.

[0108] like Figure 7 As shown, the restraint support 60 includes an outer restraint sleeve 61 and an inner core 62 , a restraint ring 63 and a restraint rod 64 , all of which are disposed in the outer restraint sleeve.

[0109] The restraining rod 64 and the inner core 62 are both arranged along the length direction of the outer restraining sleeve. The restraining ring 63 is fixed to the outer restraining sleeve and is sleeved outside the inner core 62 and the restraining rod 64 to fix the inner core 62 and the restraining rod 64.

[0110] like Figure 7 As shown, the inner core 62 is in the shape of a long strip; restraining rods 64 are provided on both sides of the inner core 62; or, as shown in FIG. Figure 8 As shown, the inner core 62 is in the shape of a long strip with a cross-shaped cross section, and restraint rods 64 are provided at four intervals of the cross.

[0111] The constraint ring 63 includes a plurality of annular constraint steel bars sleeved outside the inner core 62 and the constraint rod 64; the plurality of annular constraint steel bars are arranged in sequence along the length direction of the constraint rod 64. In addition, the constraint ring 63 can also be an annular constraint steel bar spirally wound outside the inner core 62. The annular constraint steel bar is preferably a plain round steel bar. The constraint rod 64 is preferably a steel bar; the steel bar is welded and fixed to the plain round steel bar. An anti-friction layer is provided between the constraint rod 64 and the inner core 62 to reduce the friction resistance between the constraint rod 64 and the inner core 62.

[0112] like Fig. 9 As shown, the outer restraining sleeve 61 includes a mortar layer 61a, and a reinforcement structure is provided in the mortar layer 61a; the reinforcement structure is a steel mesh 61b (or a glass fiber mesh); the steel mesh is provided along the circumference of the outer restraining sleeve.

[0113] like Figure 6 As shown, the two ends of the inner core 62 are respectively provided with connecting ends 65 extending out of the outer constraint sleeve; the width of the connecting end is greater than the width of the inner core 62 in the outer constraint sleeve (the middle width of the inner core 62); and the connecting end is provided with a mounting hole. The constraint support is connected to the crossbeam and the column through the mounting holes on the connecting end.

[0114] The buckling restraint support in the present invention, the restraint rod 64 and the restraint ring 63 restrain the buckling of the inner core 62, and limit the local buckling of the inner core 62, so that the performance of the core plate can be fully exerted. At the same time, during processing, it is only necessary to put the restraint ring 63 on the outside of the inner core 62 and the restraint rod 64 for fixing, which has low requirements. This operation does not require special factory processing, so it is simple to process and easy to operate. The restraint rod 64 is made of steel rod, the inner core 62 is made of steel core, and the restraint ring 63 is made of plain round steel bar, which are all commonly used materials, low cost, and good economy. The outer restraint sleeve is made of mortar to avoid rusting of the anti-buckling support and is maintenance-free during the service life.

[0115] Example 4

[0116] This embodiment discloses a combined structure building, which is basically the same as the second embodiment, except that:

[0117] The cross beam is a web-surface concrete composite component. As shown in 10, the web-surface concrete composite component includes: a T-shaped steel-rebar truss composite hollow member 100, a steel frame 200, tie bars and concrete 300. The T-shaped steel-rebar truss composite hollow member 100 can be used as a beam or a column.

[0118] The T-steel-rebar truss composite hollow member 100 includes an upper T-steel 110 , a lower T-steel 120 , an M-shaped steel bar 130 (or a wavy steel bar) and a stiffening steel plate 150 .

[0119] like Fig.11 As shown, the upper T-shaped steel 110 includes an upper flange 111 and an upper web 112; the lower T-shaped steel 120 includes a lower flange 121 and a lower web 122; the upper T-shaped steel 110 and the lower T-shaped steel 120 are opposite to each other and spaced apart from each other, and are arranged in an I-shape as a whole.

[0120] like Fig.10 As shown, in the length direction, the T-shaped steel-rebar truss composite hollow member 100 includes connection areas 101 at both ends and a prefabricated area 102 in the middle;

[0121] The stiffening steel plate 150 is vertically disposed at the junction of the connection area 101 and the prefabricated area 102 of the upper T-shaped steel 110 and the lower T-shaped steel 120 .

[0122] The reinforcing steel plate 150 is fixedly connected to the upper T-shaped steel 110 and the lower T-shaped steel 120 and encloses a prefabricated abdominal cavity in the prefabricated area; the prefabricated abdominal cavity includes a left prefabricated abdominal cavity 100a and a right prefabricated abdominal cavity 100b.

[0123] The M-shaped steel bars 130 are arranged in the prefabricated area 102. Fig.10 and 12As shown, the M-shaped steel bar 130 is wave-shaped and moves back and forth between the upper web 112 and the lower web 122. The M-shaped steel bar 130, the upper web 112 and the lower web 122 are welded to form a whole;

[0124] The left prefabricated abdominal cavity 100 a and the right prefabricated abdominal cavity 100 b are filled with concrete 300 , and a steel bar skeleton 200 is embedded in the concrete 300 .

[0125] The steel skeleton 200 includes a main stress-bearing reinforcement 210, and both ends of the main stress-bearing reinforcement 210 are fixedly connected to the stiffening steel plate 150 respectively; specifically, reinforcement holes are provided on the stiffening steel plate 150, and both ends of the main stress-bearing reinforcement 210 are provided with threaded sections. After the threaded sections pass through the reinforcement holes, they are fixedly connected to the stiffening steel plate 150 using nuts 151.

[0126] The nut 151 is threadedly connected to the end of the stressed main reinforcement 210. The stressed main reinforcement 210 is fixed by tightening the nut, and the force borne by the stressed main reinforcement 210 is transmitted to the reinforcing steel plate 150 and the upper T-shaped steel 110 and the lower T-shaped steel 120, thereby realizing continuous force transmission.

[0127] like Fig.14 As shown, the steel skeleton 200 includes a left steel skeleton 200a arranged in the left prefabricated abdominal cavity, and a right steel skeleton 200b arranged in the right prefabricated abdominal cavity; the tie steel bars 400 pass through the gaps of the M-shaped steel bars 130 to fix the left steel skeleton 200a and the right steel skeleton 200b.

[0128] In addition, the steel frame 200 also includes: a stand steel bar 220 and a stirrup 230. Both ends of the tie steel bar 400 are connected to the stand steel bar 220 by binding.

[0129] The M-shaped steel bar 130 is formed by bending a round steel bar or a threaded steel bar. Fig.13 As shown, there are two groups of M-shaped steel bars 130 , and the two groups of M-shaped steel bars 130 are respectively attached to the left and right sides of the upper web 112 and the lower web 122 .

[0130] The upper T-shaped steel 110 and the lower T-shaped steel 120 are hot-rolled split T-shaped steels or welded T-shaped steels.

[0131] In this embodiment, the stiffening steel plate 150 includes a left stiffening portion and a right stiffening portion; the left stiffening portion is fixedly connected to the upper flange 111, the upper web 112, the lower flange 121 and the lower web 122, and encloses a left prefabricated abdominal cavity on the left side of the prefabricated area; the right stiffening portion is fixedly connected to the upper flange 111, the upper web 112, the lower flange 121 and the lower web 122, and encloses a right prefabricated abdominal cavity on the right side of the prefabricated area.

[0132] Among them, the length of the connection area is the length of the plastic hinge area under earthquake action, which is specified by the design, and can achieve seismic energy absorption by pure steel components in the connection area under earthquake action; the M-shaped steel bar 130 is interrupted outside the connection area; and reinforcing steel plates 150 are arranged on both sides of the prefabricated area.

[0133] like Fig.10 As shown, this embodiment also includes a repair welding steel plate 160 arranged in the connection area 101; the upper and lower ends of the repair welding steel plate 160 are respectively welded and fixed to the upper web 112 and the lower web 122 (the connection is a weld 600); and a plurality of connection holes are arranged on the repair welding steel plate 160. Among them, connection holes are arranged at both ends of the upper T-shaped steel 110 and the lower T-shaped steel 120 and in the connection area. By welding the repair welding steel plate 160 and adding connection holes on the repair welding steel plate 160, the connection stiffness and strength of the composite component of the web outer concrete 300 and other butt components are improved.

[0134] The web plate outer-wrapped concrete composite component provided by the present invention has the following advantages:

[0135] 1) Good anti-corrosion and fireproof performance. The web plate wrapped with concrete solves the problem of high anti-corrosion and fireproof costs of steel beams or columns, and greatly improves the durability of steel beams or columns;

[0136] 2) The production is standardized and highly automated. T-shaped steel and corrugated steel bars are used to process T-shaped steel-steel truss combined hollow parts to achieve standardized component production, reduce processing volume and reduce processing costs;

[0137] 3) Good mechanical performance and strong integrity. The hollow web structure connects the concrete on both sides, greatly improving the integrity of the structure, enabling the steel beam or column to work with the outer concrete, greatly improving the structural strength and rigidity and reducing costs;

[0138] 4) Good seismic performance. A connection area is set at the end of the component. The length of the connection area is the length of the plastic hinge area under the action of earthquake. The connection area is a seismic energy dissipation area. Pure steel components are used with good ductility and strong seismic performance.

[0139] 5) Easy to connect, can be fully bolted; full bolt connection can be achieved through the connection area and steel column, which is easy to connect.

[0140] In summary, the web-wrapped concrete composite component and its composite structure building proposed in the present invention can give full play to the advantages of convenient connection and good seismic performance of steel structure, while integrating the advantages of steel-concrete composite structure, and utilizing the combined effect of steel-concrete to overcome the shortcomings of poor corrosion and fire resistance and weak rigidity of steel components, and realize standardized production of components, assembly construction, long-term durability, economic applicability and many other advantages, which greatly enhances the competitive advantage of steel structure and has broad application prospects in prefabricated buildings.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite structure building, characterized in that: include: Steel frame wall structures, beams and floor slabs; The steel frame wall structure comprises: a wall, a steel column and a glass wool board; the steel column is embedded in the wall; In the wall thickness direction, the glass wool board is arranged on the indoor side and / or outdoor side of the steel column to block the steel column from acting as a thermal bridge to transfer heat flow between the indoor and outdoor sides of the wall; In the horizontal projection plane, the floor comprises a floor slab arranged indoors and a cantilever slab arranged outdoors; the floor slab and the cantilever slab are connected via an anti-cold and heat bridge node; the anti-cold and heat bridge node comprises a sandwich plate, a first steel plate and a second steel plate; The sandwich panel comprises a first metal panel, a second metal panel, a plurality of node connectors, an annular sealing plate and a heat-insulating material; the annular sealing plate is fixedly connected between the first metal panel and the second metal panel which are arranged opposite to each other, and is surrounded by the first metal panel and the second metal panel to form a sealed cavity; one end of the node connector is fixedly connected to the first metal panel, and the other end is fixedly connected to the second metal panel, and is arranged in the sealed cavity; the heat-insulating material is filled in the sealed cavity; The first steel bar pad is welded on the surface of the first metal panel facing away from the second metal panel, and a plurality of floor steel bars extending toward the indoor side and entering the floor are welded on the first steel bar pad; The second steel bar pad is welded to the surface of the second metal panel on one side facing away from the first metal panel, and a plurality of cantilever plate steel bars extending toward the outdoor side and entering the cantilever plate are welded to the second steel bar pad.

2. The composite structure building according to claim 1, characterized in that: On a projection plane perpendicular to the wall, the glass wool board does not cover the entire wall, and the glass wool board covers all or part of the steel columns.

3. The composite structure building according to claim 1, characterized in that: On a projection plane perpendicular to the wall, the left and right sides of the glass wool board protrude from the steel columns and are embedded in the wall.

4. The composite structure building according to claim 1, characterized in that: The steel column is an H-shaped steel column, and the glass wool board is laid on the outer side surface of the outer flange or inner flange of the H-shaped steel column.

5. The composite structure building according to claim 4, characterized in that: The wall body is an aerated concrete wall built with aerated concrete blocks; the aerated concrete wall extends into the U-shaped groove between the outer flange and the inner flange of the H-shaped steel column.

6. The composite structure building according to claim 1, characterized in that: A mortar coating layer and a finishing layer are sequentially arranged on the side of the outermost glass wool board of the wall away from the steel column, and a glass fiber mesh is laid in the mortar coating layer.

7. The composite structure building according to claim 1, characterized in that: The cantilever board is a cantilevered balcony, a cantilevered air-conditioning board or a rain shield.

8. The composite structure building according to claim 1, characterized in that: The node connection piece is a connection pipe, a connection rod, a honeycomb plate or a corrugated plate; when the node connection piece is a connection pipe, the connection pipe is filled with a heat insulating material.

9. The composite structure building according to claim 1, characterized in that: The node connecting piece and the annular sealing plate are made of fiber-reinforced composite material or plastic.

10. The composite structure building according to claim 1, characterized in that: It also includes a restraining support member; the two ends of the restraining support member are respectively fixedly connected to the middle part of the steel column and the middle part of the crossbeam; The restraining support member includes an outer restraining sleeve and an inner core, a restraining ring and a restraining rod all disposed in the outer restraining sleeve; The constraint rod and the inner core are both arranged along the length direction of the outer constraint sleeve. The constraint ring is fixed to the outer constraint sleeve and is sleeved outside the inner core and the constraint rod to fix the inner core to the constraint rod.

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