Buckling-restrained steel plate shear wall and its combined structural residential system

Abstract

The present invention relates to the field of building technology, and more particularly to a buckling-restrained steel plate shear wall and its combined structural residential system. The shear wall comprises a shear wall body and a connector disposed within the shear wall body; the connector is secured to the shear wall body; the connector is provided with multiple through-holes along the thickness of the shear wall body, thereby reducing the weight of the shear wall and simplifying on-site flipping, transport, and hoisting. Furthermore, the shear wall body exhibits reasonable force and reliable performance, can be easily fabricated and formed in a factory, and does not require on-site assembly, thereby reducing on-site workload and improving connection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of building technology, in particular to a buckling-restrained steel plate shear wall and a combined structural residential system thereof. Background Art

[0002] Traditional buckling-restrained steel plate shear walls use ordinary steel plates as the core lateral force-resisting members and are assembled on-site. However, their heavy weight makes them difficult to flip, transport, and hoist, leading to difficulties in on-site construction. Summary of the Invention

[0003] The purpose of the present invention is to provide a buckling-restrained steel plate shear wall and its combined structural residential system to solve the technical problems in the prior art of heavy deadweight of the steel plate of the shear wall and difficulty in construction.

[0004] In order to solve the above technical problems, the present invention provides a buckling-restrained steel plate shear wall, comprising a shear wall and a connecting member arranged in the shear wall; the connecting member is fixed to the shear wall; and a plurality of through holes are arranged on the connecting member along the thickness direction of the shear wall.

[0005] Furthermore, the shear wall includes an inner plate and an outer plate spaced apart along its thickness direction; the connecting member is a plurality of spaced apart connecting pipes; both ends of the connecting pipes are respectively fixed to the inner plate and the outer plate.

[0006] Furthermore, the shear wall includes an inner plate and an outer plate spaced apart along its thickness direction; the connecting member is a connecting plate with a honeycomb cross-section, and the two side surfaces of the connecting plate are respectively fixed to the inner plate and the outer plate.

[0007] Furthermore, the ends of the connecting piece are connected to the inner plate and the outer plate through connecting feet, and the connecting feet are used to increase the connection area between the connecting piece and the inner plate and the outer plate; the material of the connecting tube is fiber-reinforced composite material, and is connected to the connecting feet through resin.

[0008] Furthermore, the connecting pipe is connected to the inner plate or the outer plate through a reinforcement, and the reinforcement includes a cylinder and a connecting ring connected to one end of the cylinder, and the inner edge of the connecting ring is connected to the outer edge of the cylinder; the cylinder is sleeved inside the connecting pipe, and the connecting ring extends out of the connecting pipe and is fixed to the end face of the connecting pipe; the connecting ring is provided with a bonding portion that is bonded to the inner wall of the inner plate or the outer plate.

[0009] Furthermore, the shape of the connecting foot is the same as the shape of the end of the connecting member.

[0010] Furthermore, the shear wall is filled with insulation material, and reinforcing ribs are provided on the outer tube wall of the connecting tube along its circumference; the edge of one end of the reinforcing rib is flush with the edge of one end of the cylinder away from the connecting ring; the reinforcing rib is composed of a plurality of S-shaped reinforcing strips arranged at intervals.

[0011] Furthermore, mounting holes are provided at the upper and lower ends of the shear wall.

[0012] Furthermore, the present invention also provides a method for connecting buckling-restrained steel plate shear walls, comprising the following steps:

[0013] Fixing a connector having a plurality of through holes between an inner plate and an outer plate arranged in parallel so that the axes of the through holes are perpendicular to the inner plate;

[0014] Fix two restraining wall panels opposite to each other at the left and right ends of the inner and outer panels;

[0015] The two end connecting plates are fixed oppositely to the upper and lower ends of the inner plate and the outer plate to form a buckling restrained steel plate shear wall.

[0016] Furthermore, after the two restraining wall panels are fixed relatively to the left and right ends of the inner and outer panels, the following steps are further included:

[0017] Fill the space between the inner and outer panels with insulation material.

[0018] Furthermore, after the shear wall is formed, the following steps are further included:

[0019] The formed buckling-restrained steel plate shear wall is transported to the construction site and fixed to the steel beam with bolts.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects:

[0021] The buckling-restrained steel plate shear wall provided by the present invention features built-in connectors with through-holes. While achieving buckling-restraint, it also reduces the shear wall's weight and facilitates on-site flipping, transport, and installation. Furthermore, the shear wall offers reasonable stress response and reliable performance. It can be easily fabricated in a factory and eliminates the need for on-site assembly, reducing on-site workload and improving connection efficiency.

[0022] In a third aspect, the present invention further discloses a combined structural residential system with the above-mentioned buckling-restrained steel plate shear wall, comprising: a beam, a column, the shear wall and a floor;

[0023] The column includes a round steel tube and a plurality of T-shaped steels; concrete is poured into the round steel tube, and the plurality of T-shaped steels are arranged at intervals along the circumference of the round steel tube, and the opposite ends of the web and flange of the T-shaped steel are fixedly connected to the outer wall of the round steel tube; the web of the T-shaped steel is located on the extension line of the diameter of the round steel tube, and bolt holes are provided on the flange.

[0024] Furthermore, there are two T-shaped steels, and the webs of the two T-shaped steels are located on the same diameter of the round steel pipe to form a straight line.

[0025] Furthermore, the number of the T-shaped steels is more than 3, and the T-shaped steels are evenly spaced in the circumferential direction of the round steel tube.

[0026] Furthermore, there are two T-shaped steels, and the webs of the two T-shaped steels are perpendicular to each other to form an L-shape.

[0027] Furthermore, there are three T-shaped steels, and the webs of the three T-shaped steels are arranged in a T shape.

[0028] Furthermore, there are four T-shaped steels, and the webs of the four T-shaped steels are arranged in a cross shape.

[0029] Furthermore, the round steel pipe is provided with a first circular exhaust hole along its axial direction near its outer wall; the diameter of the first circular exhaust hole is greater than or equal to 12 mm.

[0030] The column provided by the present invention is composed of a round steel tube and a plurality of T-shaped steels. The round steel tube concrete is located near the neutral axis and mainly bears the axial force, giving full play to the advantages of the good axial pressure performance of the round steel tube concrete. The T-shaped steel is arranged away from the neutral axis, the lever arm is increased, the bending bearing capacity is greatly improved, and thus the bending mechanical performance is greatly improved. At the same time, the T-shaped steel is located on the outside for easy connection, realizing full bolt connection of the beam-column node and the vertical splicing node between columns, that is, the column and the steel beam as well as the upper and lower columns are all connected by bolts. During the connection, the steel column can also be prevented from being exposed outside the wall, achieving the purpose of hiding the column inside the wall.

[0031] Furthermore, in a horizontal projection plane, the floor comprises a floor slab arranged indoors and a cantilevered plate arranged outdoors; the floor slab and the cantilevered plate 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;

[0032] The sandwich panel includes a first metal panel, a second metal panel, a plurality of node connectors, an annular sealing plate, and a thermal insulation material; the annular sealing plate is fixedly connected between the first metal panel and the second metal panel that are arranged opposite to each other, and surrounds 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 disposed in the sealed cavity; the thermal insulation material is filled in the sealed cavity;

[0033] The first steel bar pad is welded on a surface of the first metal panel facing away from the second metal panel, and a plurality of floor steel bars extending toward the interior of the room and entering the floor are welded on the first steel bar pad;

[0034] The second steel bar pad is welded to the surface of the second metal panel facing away from the first metal panel, and a plurality of cantilever plate steel bars extending toward the outside of the room and entering the cantilever plate are welded to the second steel bar pad.

[0035] Among them, the cantilevered board can be a cantilevered balcony, a cantilevered air-conditioning board, a rain shield and other components.

[0036] Preferably, the node connection member is a connecting pipe, a connecting rod, a honeycomb plate or a corrugated plate;

[0037] When the node connection member is a connecting pipe, the connecting pipe is filled with heat insulation material.

[0038] 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.

[0039] 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.

[0040] 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; the steel bars are threaded steel bars.

[0041] 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 process holes are reserved on the annular sealing plate;

[0042] welding steel bar pads to the first metal panel and the second metal panel respectively;

[0043] Steel bars are welded on each steel plate;

[0044] Place the reinforcement on one side of the first metal panel or the second metal panel into the formwork (floor slab or cantilever slab formwork);

[0045] Tie the steel bars to the steel bars inside the formwork to form a steel skeleton;

[0046] Pour concrete into the formwork;

[0047] Fill the sealing cavity with heat-insulating material through the process hole and squeeze it tightly;

[0048] The process holes are sealed to form prefabricated components with anti-cold and thermal bridge nodes for floor slabs.

[0049] The anti-cold and heat bridge node of the floor structure of the present invention is characterized by 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 prevent the sandwich panel from forming a thermal bridge, that is, a broken bridge structure is formed between the floor slab and the cantilever slab 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 are fixed between the metal panels, so that the structural strength of the anti-cold and heat bridge node is high and the stress-bearing performance is good.

[0050] Furthermore, it further comprises a restraining support member; both ends of the restraining support member are fixedly connected to the middle part of the column and the middle part of the beam respectively;

[0051] The restraint support comprises an outer restraint sleeve and an inner core, a restraint ring and a restraint rod all disposed within the outer restraint sleeve;

[0052] 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 and the constraint rod.

[0053] Furthermore, the inner core is in the shape of a long strip; the restraining rods are provided 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 provided at four intervals of the cross.

[0054] 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.

[0055] Furthermore, the restraining ring is an annular restraining steel bar spirally wound around the inner core, wherein the annular restraining steel bar is preferably a plain round steel bar.

[0056] Furthermore, the restraining rod is a steel rod; the steel rod is welded and fixed to the plain round steel bar.

[0057] Furthermore, an anti-friction layer is provided between the restraint rod and the inner core to reduce frictional resistance between the restraint rod and the inner core.

[0058] 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.

[0059] Furthermore, the inner core is provided with connecting ends at both ends, extending outside the outer restraining sleeve. The width of each connecting end is greater than the width of the inner core within the outer restraining sleeve (the middle width of the inner core). Mounting holes are provided on each connecting end. The restraining support is connected to the crossbeam and the column through the mounting holes on the connecting ends.

[0060] The buckling restraint brace of the present invention, with its restraint rods and restraint rings, restrains the inner core from buckling, limiting local buckling within the core, thereby fully utilizing the core plate's performance. Furthermore, during processing, the restraint rings simply need to be secured over the inner core and restraint rods, requiring minimal effort and requiring no specialized factory processing. Consequently, the process is simple and easy to perform. The restraint rods are constructed of steel rods, the inner core is constructed of steel core, and the restraint rings are constructed of plain round rebar—all commonly available materials with low cost and excellent economical performance. The outer restraint sleeve is made of mortar, preventing corrosion of the anti-buckling brace and requiring no maintenance during its lifetime.

[0061] Furthermore, the T-shaped steel flange in the column close to the outdoor side is the outer flange, and the outer flange is arranged parallel to the wall surface of the wall; the outer end face of the outer flange is coated with an outer anti-corrosion layer; several layers of glass wool boards are laid on the outside of the anti-corrosion layer of the outer flange, which are used to block the column from acting as a thermal bridge to transfer heat flow between the indoor and outdoor sides of the wall.

[0062] While effectively eliminating the thermal bridge effect at the column and improving the overall thermal insulation performance of the building, several layers of glass wool boards can effectively reduce the impact of external temperature changes on the external anti-corrosion layer and increase the effective anti-corrosion period of the anti-corrosion layer.

[0063] Furthermore, the T-shaped steel flange on the indoor side of the column is the inner flange, the inner flange is arranged parallel to the wall surface of the wall, and the outer end face of the inner flange is coated with an inner anti-corrosion layer; and no insulation material is laid on the outside of the inner anti-corrosion layer of the inner flange.

[0064] Since the indoor temperature and humidity do not change much and are relatively stable, it is beneficial for the inner anti-corrosion layer to remain effective for a long time. By utilizing the thermal bridge effect of the column itself and combining it with the glass wool board outside the outer flange to block the thermal bridge, the temperature fluctuations at the outer anti-corrosion layer of the outer flange are greatly reduced, thereby more effectively extending the effective life of the outer anti-corrosion layer and improving the anti-corrosion performance of the column as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 A front view of a metal sandwich plate structure in a buckling-restrained steel plate shear wall provided by an embodiment of the present invention;

[0066] Figure 2 for Figure 1 A top view of the metal sandwich panel structure is shown;

[0067] Figure 3 for Figure 1 A partial enlarged view of the metal sandwich panel structure shown;

[0068] Figure 4 for Figure 1 AA cross-sectional view of the metal sandwich panel structure shown;

[0069] Figure 5 A schematic diagram of the structure of the connection between the metal sandwich plate structure and the steel beam provided in an embodiment of the present invention;

[0070] Figure 6 for Figure 5 The AA section view of the connection between the metal sandwich panel structure and the steel beam is shown;

[0071] Figure 7 for Figure 5 The BB section view of the connection between the metal sandwich panel structure and the steel beam is shown;

[0072] Figure 8 A schematic structural diagram of the connecting pipe and the reinforcement provided by the present invention;

[0073] Figure 9 for Figure 8 A cross-sectional view of the connecting pipe and the reinforcement member shown;

[0074] Figure 10 A schematic structural diagram of a straight-line column provided in Example 2 of the present invention;

[0075] Figure 11 A schematic structural diagram of a cross-shaped column provided in Example 2 of the present invention;

[0076] Figure 12 A schematic structural diagram of an L-shaped column provided in Example 2 of the present invention;

[0077] Figure 13A schematic structural diagram of a T-shaped column provided in Example 2 of the present invention;

[0078] Figure 14 This is a schematic diagram of the column broken bridge structure in Example 3 of the present invention;

[0079] Figure 15 This is a schematic structural diagram of a floor in Example 4 of the present invention;

[0080] Figure 16 This is a schematic structural diagram of a cold / thermal bridge prevention node in Example 4 of the present invention;

[0081] Figure 17 Schematic diagram of the structure of the annular sealing plate in Example 4 of the present invention;

[0082] Figure 18 Schematic diagram of the arrangement of the restraining support members in Example 5;

[0083] Figure 19 for Figure 18 AA section view in;

[0084] Figure 20 is a side view of the cross-shaped inner core 62 in Example 5;

[0085] Figure 21 for Figure 19 FF cross-sectional view in. DETAILED DESCRIPTION

[0086] The present invention will be further explained below with reference to specific embodiments.

[0087] Example 1

[0088] like Figure 1-9 As shown, the buckling-restrained steel plate shear wall provided in this embodiment includes a shear wall body and a connector disposed within the shear wall body; the connector body is fixed to the wall body; and a plurality of through-holes are provided on the connector body along the thickness direction of the shear wall body. The present invention adopts the method of disposing connectors within the shear wall body and providing through-holes on the connector body. While achieving the buckling-resistance function of the shear wall body, the weight of the shear wall body is reduced, and on-site flipping, transportation, and hoisting are simplified. Furthermore, the shear wall body has reasonable force and reliable performance. It can be easily processed and formed in a factory, and does not require on-site lamination, thereby reducing on-site workload and improving connection efficiency.

[0089] Specifically, the shear wall comprises a metal sandwich panel structure, side panels, and end connecting plates 7. The metal sandwich panel structure consists of two layers of metal panels and connectors located between them. The connection between the two layers of metal panels and the connectors resembles a sandwich, hence the name sandwich panel structure. The metal panels can be made of carbon structural steel, low-alloy high-strength structural steel, or stainless steel, forming a double-plate shear wall structure. The connectors can be tubular, honeycomb, or corrugated, and can be made of stainless steel, fiber-reinforced composite materials, or plastic. The two layers of metal panels and the connectors can be connected by bonding, hot-melt welding, or adhesive bonding.

[0090] like Figure 1-3 As shown, based on the above embodiment, the shear wall further comprises an inner panel 1 and an outer panel 2 spaced apart along its thickness. The connecting members are a plurality of spaced apart connecting pipes 3, each of which is fixed to the inner panel 1 and the outer panel 2 at both ends. The connecting pipes 3 have a simple structure and can be manufactured from pre-made materials, which is low-cost and easy to connect. The inner panel 1 and the outer panel 2 are made of steel plates.

[0091] Based on the above embodiment, the shear wall further comprises an inner panel 1 and an outer panel 2 spaced apart along its thickness; the connecting member is a connecting plate with a honeycomb cross-section, the two side surfaces of which are respectively fixed to the inner panel 1 and the outer panel 2. The honeycomb connecting plate can be integrally formed and then connected to the shear wall, thereby improving connection efficiency.

[0092] like Figure 4 As shown, based on the above embodiment, the ends of the connector are further connected to the inner panel 1 and the outer panel 2 via connecting legs 4. Connecting legs 4 are used to increase the connection area between the connector, the inner panel 1 and the outer panel 2. The connecting tube 3 is made of fiber-reinforced composite material and is connected to the connecting legs 4 via resin. Connecting legs 4 increase the connection area between the connector and the shear wall, that is, simultaneously increase the connection area between the inner panel 1 and the outer panel 2 at both ends of the connector, thereby improving the connection strength.

[0093] The connecting leg 4 may have various structural forms, as long as the connection area between the connecting leg 4 and the connecting piece is smaller than the connection area between the connecting leg 4 and the inner and outer panels 2 .

[0094] like Figure 4 and Figure 7As shown, based on the above embodiment, the shape of the connecting leg 4 is further modified to match the shape of the end of the connecting member. Specifically, when the connecting member is a connecting tube 3, the connecting leg 4 is annular. When the connecting member is a honeycomb connecting plate, the connecting leg 4 also has a honeycomb shape. This ensures that the shapes of the connecting member (connecting tube 3 or honeycomb connecting plate) and the connecting leg 4 precisely match. Furthermore, the connecting member's connection area with the inner and outer panels 2 is larger than its connection area with the connecting member, thereby enhancing the connection strength between the inner and outer panels. This regular shape of the connecting leg 4 facilitates processing.

[0095] like Figure 8 and Figure 9 As shown, the connecting tube 3 is further connected to the inner panel 1 or outer panel 2 via a reinforcement member 9. The reinforcement member 9 includes a cylindrical body 11 and a connecting ring 10 connected to one end of the cylindrical body 11. The inner edge of the connecting ring 10 is connected to the outer edge of the cylindrical body 11. The cylindrical body 11 is inserted into the connecting tube 3, and the connecting ring 10 extends out of the connecting tube 3 and is fixed to the end face of the connecting tube 3. The connecting ring 10 is provided with a bonding portion that bonds to the inner wall of the inner panel 1 or outer panel 2. The inner panel or outer panel is fixed to the connecting tube via the reinforcement member. The cylindrical body and the connecting ring are connected in an L-shape, which firmly secures the connecting tube 3 to the reinforcement member 9. The bonding portion of the connecting ring 10 is then bonded to the inner panel 1 or outer panel 2, thereby significantly improving the connection strength between the connecting tube 3 and the inner panel or outer panel. Furthermore, the connecting tube can limit the buckling of the connecting tube, thereby improving the anti-buckling performance. The bonding portion ensures that the connection position of the connecting ring and the wall is always at the preset position, allowing the construction worker to bond according to the bonding portion position, thereby ensuring the bonding position is accurate.

[0096] like Figure 8 and Figure 9 As shown, based on the above embodiment, the shear wall is further filled with thermal insulation material, and reinforcing ribs are provided on the outer tube wall of the connecting tube 3 along its circumference; the edge of one end of the reinforcing rib is flush with the edge of the end of the cylinder 11 away from the connecting ring 10; the reinforcing rib is composed of a plurality of S-shaped reinforcing strips 8 arranged at intervals. The reinforcing rib is flush with the cylinder 11 in the longitudinal direction, so that the axial strength of the connecting tube 3 is greatly enhanced. At the same time, after the thermal insulation material is filled into the wall, it enters the S-shaped reinforcing strip 8. The thermal insulation material between two adjacent reinforcing strips 8 can further enhance the axial strength of the connecting tube and is also conducive to the dense filling of the thermal insulation material into the wall. The thermal insulation material can be materials such as rock wool and foamed polyurethane to improve the thermal insulation and sound insulation performance of the shear wall.

[0097] Preferably, the curve radius of the lower half of the S-shaped reinforcement strip is 1.4 times the curve radius of the upper half, so that the axial strength of the connecting pipe is maximized.

[0098] Based on the above embodiment, the shear wall is further provided with mounting holes at the upper and lower ends. These mounting holes can be bolt holes, and the shear wall is connected and fixed to the steel beam 6 through the mounting holes at the upper and lower ends, thereby facilitating installation. Preferably, the shear wall is connected to the steel beam 6 using high-strength bolts.

[0099] On the basis of the above embodiments, the present invention further provides a method for connecting buckling-restrained steel plate shear walls, comprising the following steps:

[0100] A connector having a plurality of through holes is fixed between the inner plate 1 and the outer plate 2 arranged in parallel, so that the axis of the through holes is perpendicular to the inner plate;

[0101] Fix two restraining wall panels 5 relatively to the left and right ends of the inner panel 1 and the outer panel 2;

[0102] The two end connecting plates 7 are fixed relatively to the upper and lower ends of the inner plate 1 and the outer plate 2 to form the above-mentioned buckling restrained steel plate shear wall.

[0103] Among them, the inner and outer side panels 2, the restraining wall panels 5 and the end connecting panels 7 are all steel plates.

[0104] like Figure 5 and 6 As shown, further, after the above process is completed in the factory, the resulting buckling-restrained steel plate shear wall is transported to the construction site and fixedly connected to the steel beam 6 via bolts. Preferably, the shear wall and steel beam 6 are connected via high-strength bolts. This method eliminates the need for on-site assembly and simplifies processing.

[0105] On the basis of the above embodiment, further, the connecting piece, the inner panel 1, the outer panel 2, the restraining wall panel 5 and the end connecting plate 7 are fixed to each other by bonding to enhance the connection strength of the connection.

[0106] As a preferred embodiment, the shear wall connection method provided by the present invention includes the following steps:

[0107] Processing a metal sandwich panel structure, and bonding restraining steel plates (i.e., restraining wall panels 5) to the left and right sides of the metal sandwich panel structure;

[0108] Fill the metal sandwich panel structure with rock wool and squeeze it tightly;

[0109] The steel plates and the stiffening steel plates are bonded and connected at the upper and lower ends of the metal sandwich plate structure, and bolt holes are provided on the steel plates;

[0110] After being transported to the site, it is connected to the steel beam 6 through high-strength bolts.

[0111] The above method is used to process the shear wall, eliminating unnecessary redundant steps, simplifying on-site installation and construction, and improving efficiency.

[0112] In summary, the buckling-restrained steel plate shear wall and its connection method proposed in this patent have the advantages of good stress-bearing performance, good thermal insulation and sound insulation performance, simple construction, and high degree of assembly. It can be used as a building energy-consuming component and has broad application prospects.

[0113] Example 2

[0114] This embodiment discloses a combined structural residential system with the buckling-restrained steel plate shear wall described in Example 1, comprising: beams, columns, the shear wall, and a floor;

[0115] like Figure 10-13 As shown, the present embodiment provides a column 30, which includes a round steel tube 31 and 2-4 T-shaped steels 32; concrete 33 is poured in the round steel tube 31, and multiple T-shaped steels 32 are arranged at intervals along the circumference of the round steel tube 31, and the opposite ends of the web and flange of the T-shaped steel 32 are fixedly connected to the outer wall of the round steel tube 31; the web 32b of the T-shaped steel 32 is located on the extension line of the diameter of the round steel tube 31, and bolt holes are provided on the flange 32a.

[0116] Among them, several T-shaped steels 32 are arranged in various ways, such as Figure 10 As shown, there are two T-shaped steels 32, and the webs of the two T-shaped steels 32 are located on the same diameter of the round steel tube 31 to form a straight line. Figure 12 As shown, there are two T-shaped steels 32, and the webs of the two T-shaped steels 32 are vertical to form an L shape. Figure 13 As shown, there are three T-shaped steels 32, and the webs of the three T-shaped steels 32 are arranged in a T shape. Figure 11 As shown, there are four T-shaped steels 32 , and the webs of the four T-shaped steels 32 are arranged in a cross shape.

[0117] The column 30 provided by the present invention is composed of a round steel tube 31 and a plurality of T-shaped steels 32. The concrete of the round steel tube 31 is located near the neutral axis and mainly bears the axial force, giving full play to the advantages of the good axial pressure performance of the concrete of the round steel tube 31. The T-shaped steel 32 is arranged away from the neutral axis, the lever arm is increased, the bending bearing capacity is greatly improved, and the bending mechanical performance is greatly improved. At the same time, the T-shaped steel 32 is located on the outside for easy connection, and the beam-column node and the column-column vertical splicing node are fully bolted, that is, the column 30 is connected to the steel beam and the upper and lower columns by bolts. When connecting, the steel column can also be prevented from being exposed outside the wall, achieving the purpose of hiding the column inside the wall. The node structure is simple, the node plate does not extend into the round steel tube 31, and the quality of concrete pouring is easy to ensure. In addition, the column 30 of the present invention is processed using finished profiles such as hot-rolled profiles and cold-bent round steel tubes, which is simple to process, can be automatically produced, and has low production costs.

[0118] In the above embodiment, preferably, first circular vent holes (not shown) are provided on the sidewalls or at both ends of the round steel tube 31. The diameter of the first circular vent hole is greater than or equal to 12 mm. In the event of a fire, the first circular vent hole is used to discharge water vapor from the concrete inside the round steel tube 31, preventing the round steel tube 31 from bursting.

[0119] Example 3

[0120] This embodiment is basically the same as embodiment 2, except that:

[0121] like Figure 14 As shown, the column 30 is embedded in the wall S4; the T-shaped steel flange of the column 30 close to the outdoor side is the outer flange 3a, and the outer flange 3a is arranged parallel to the wall surface of the wall S4; the outer end face of the outer flange 3a is coated with an outer anti-corrosion layer (not shown); several layers of glass wool boards S10 are laid on the outside of the anti-corrosion layer of the outer flange, which are used to block the column 30 from acting as a thermal bridge to transfer heat flow between the indoor and outdoor sides of the wall.

[0122] While effectively eliminating the thermal bridge effect at the column 30 and improving the overall thermal insulation performance of the building, several layers of glass wool boards S10 can effectively reduce the impact of external temperature changes on the external anti-corrosion layer and increase the effective anti-corrosion period of the anti-corrosion layer.

[0123] On a projection plane parallel to the wall S4, the glass wool board S10 does not cover the entire wall S4; it only covers all or part of the column 30. Unlike insulation boards or layers installed entirely outside a wall, the glass wool board in the present invention is designed to block thermal bridges at the column, thereby solving the problem of heat conduction in that part of the column.

[0124] The present invention has a significant thermal insulation effect and low cost. It can effectively reduce the heat transfer caused by the column as a thermal bridge, eliminate the heat flow concentration on both sides of the wall S4 at the column, and greatly improve the thermal insulation performance of the wall S4, so that the wall S4 can meet the requirements of 75% energy saving in residential buildings and a heat transfer coefficient of <0.45W / (m 2 •K) green and energy-saving design requirements.

[0125] Furthermore, on a projection plane parallel to wall S4, the left and right ends of the glass wool board S10 protrude beyond the outer flange 3a and are embedded in wall S4. The glass wool board S10 extends appropriately to the left and right of the outer flange 3a, further improving its ability to block heat transfer from the column through thermal bridges and enhancing the thermal insulation performance of wall S4. The glass wool board S10 is embedded in wall S4, making it less susceptible to edge lifting and bulging, and providing a more secure installation.

[0126] In this embodiment, two layers of glass wool panels are installed on the outdoor side of the column along the thickness of wall S4. These adjacent layers include an inner layer S11, located closer to the column, and an outer layer S12, located further away from the column. On a projection plane parallel to wall S4, the left and right sides of the outer layer S12 protrude beyond the inner layer S11. In a horizontal cross-section of wall S4, the two layers of glass wool panels are embedded in wall S4 in an inverted pyramid (stepped) configuration.

[0127] On the horizontal cross section of wall S4, several layers of glass wool panels are arranged in a stepped (inverted pyramid) pattern. The heat conduction efficiency of the column is normally distributed. The heat transfer in the center of the column is the most intensive, which is the column thermal bridge area, while the heat transfer on the left and right sides gradually decreases, which are the thermal bridge influence areas. Figure 14 The length of the arrow in the middle reflects the amount of heat transfer. Several layers of glass wool panels are arranged in an inverted pyramid on one side of the column, which better conforms to the normal distribution of heat in thermal bridges. This effectively blocks heat transfer from the front of the column while also preventing heat scattering on both sides.

[0128] Furthermore, multiple layers of glass wool panels are arranged in an inverted pyramid configuration, with both sides of each panel embedded in the wall S4. This ensures that each panel will not warp or bulge over the building's decades-long lifespan. This reduces building energy-saving costs while ensuring compliance with building energy-saving design standards. This invention is widely applicable to the field of exterior wall insulation for steel frame structures.

[0129] To achieve the same thermal bridge-blocking effect with a single-layer glass wool board, the thickness of the board needs to be increased. However, excessively thick glass wool boards are often non-standard and require customization, which increases construction costs. Furthermore, excessively thick glass wool boards are too heavy, making them difficult to install and prone to falling off after installation. Furthermore, while a single-layer glass wool board provides adequate insulation for the thermal bridge column area, it can lead to excessive insulation in the corresponding areas affected by the thermal bridge, resulting in material waste.

[0130] This application can flexibly use 2-6 layers of conventional glass wool boards according to design requirements. The thickness of each layer of glass wool board is greatly reduced, which is convenient for installation. After installation, the glass wool board is not easy to fall off and is more stable. In addition, there is no excessive waste of materials, which is a green and energy-saving construction method.

[0131] In the above embodiment, more preferably, the number of glass wool panels is 3-4 layers, and the width of the outer flange 3a and the width of the 3-4 layers of glass wool panels are arranged in a geometric progression, wherein the ratio range is preferably 1.6 to 2. Taking a 3-layer glass wool panel as an example, the width of the inner glass wool panel is 1.6 to 2 times the width of the outer flange 3a, the width of the middle glass wool panel is 1.6 to 2 times the width of the inner glass wool panel, and the width of the outer glass wool panel is 1.6 to 2 times the width of the middle glass wool panel.

[0132] The inner glass wool board S11 is applied to the outer side of the outer flange 3a and the wall S4 using adhesive, and the outer glass wool board S12 is applied to the inner glass wool board S11 and the wall S4 using adhesive 5.

[0133] In addition, anchor bolts are installed between the wall S4 and the glass wool board S10. After the glass wool board is attached to the wall with adhesive, the anchor bolts are used to further secure it. The glass wool board is fixed with both adhesive and anchor bolts to ensure the overall performance of the insulation layer and the wall.

[0134] More preferably in this embodiment, the T-shaped steel flange close to the indoor side in the column 30 is the inner flange 3b, the inner flange 3b is arranged parallel to the wall surface of the wall, and the outer end face of the inner flange 3b is coated with an inner anti-corrosion layer; and no insulation material is laid on the outside of the inner anti-corrosion layer of the inner flange 3b.

[0135] Since the temperature and humidity in the room do not change much and are relatively stable, it is beneficial for the inner anti-corrosion layer to remain effective for a long time. By utilizing the thermal bridge effect of the column itself and combining it with the glass wool board outside the outer flange to block the thermal bridge, the temperature fluctuations at the outer anti-corrosion layer of the outer flange 3a are greatly reduced, thereby more effectively extending the effective life of the outer anti-corrosion layer, thereby improving the anti-corrosion performance of the column as a whole.

[0136] Example 4

[0137] This embodiment discloses a composite structure building. This embodiment is basically the same as the second embodiment, except that:

[0138] like Figure 15 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 heat bridge node 53.

[0139] like Figure 16 and 17As shown, the anti-cold and thermal bridge node 53 includes a sandwich plate, a first steel plate pad 53c and a second steel plate pad 53d; the sandwich plate includes a first metal panel 53a, a second metal panel 53b, multiple 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.

[0140] 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 into 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.

[0141] A second steel plate 53d is welded to the side of the second metal panel 53b facing away from the first metal panel 53a. Multiple cantilever reinforcement bars 53f are welded to the second steel plate 53d, extending toward the outside and into the cantilever. The cantilever reinforcement bars 53f are overlapped or welded to the reinforcement framework within the cantilever. The cantilever can be a cantilevered balcony, cantilevered air conditioning panel, rain shield, or other component.

[0142] Preferably, the node connector 56 is a connecting tube, connecting rod, honeycomb panel, or corrugated panel. When the node connector 56 is a connecting tube, the connecting tube is filled with a thermal insulation material. More preferably, the node connector 56 and the annular sealing plate 54 are made of fiber-reinforced composite material or plastic. The thermal insulation material is rock wool or polyurethane foam.

[0143] 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.

[0144] 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 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.

[0145] 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 slab or cantilever slab 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 heat bridge node 53 for the floor slab.

[0146] 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; the middle of the sandwich panel is filled with rock wool, foamed polyurethane and other insulating materials. At the same time, the insulating material is embedded in the sealed cavity of the sandwich panel to prevent the sandwich panel from forming a thermal bridge, that is, a broken bridge structure is formed between the floor slab and the cantilever slab 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 panel through the steel bar pad, and a plurality of node connectors 56 are fixed between the metal panels, so that the structural strength of the anti-cold and heat bridge node 53 is high and the stress-bearing performance is good.

[0147] Example 5

[0148] This embodiment discloses a composite structure building. This embodiment is basically the same as Embodiment 4 or 5, except that:

[0149] like Figure 18 As shown, the combined structural building includes a restraining support member 60; both ends of the restraining support member 60 are fixedly connected to the middle part of the column and the middle part of the beam respectively.

[0150] like Figure 19 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 within the outer restraint sleeve.

[0151] The restraint rod 64 and the inner core 62 are both arranged along the length direction of the outer restraint sleeve. The restraint ring 63 is fixed to the outer restraint sleeve and is sleeved outside the inner core 62 and the restraint rod 64 to fix the inner core 62 and the restraint rod 64.

[0152] like Figure 19 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 Figure 20 As shown, the inner core 62 is in the shape of a long strip with a cross-section, and restraining rods 64 are provided at four intervals of the cross.

[0153] The restraint ring 63 comprises a plurality of annular restraint steel bars wrapped around the inner core 62 and the restraint rod 64. The plurality of annular restraint steel bars are spaced along the length of the restraint rod 64. Alternatively, the restraint ring 63 may be annular restraint steel bars spirally wrapped around the inner core 62. The annular restraint steel bars are preferably plain round steel bars. The restraint rod 64 is preferably a steel rod welded to the plain round steel bar. An anti-friction layer is provided between the restraint rod 64 and the inner core 62 to reduce friction between the restraint rod 64 and the inner core 62.

[0154] like Figure 21 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.

[0155] like Figure 18 As shown, each end of the inner core 62 is provided with a connecting end 65 extending outside the outer restraining sleeve. The width of the connecting end is greater than the width of the inner core 62 within the outer restraining sleeve (the middle width of the inner core 62). The connecting end is provided with a mounting hole. The restraining support member is connected to the crossbeam and column through the mounting holes in the connecting end.

[0156] The buckling restraint brace of the present invention, with restraint rods 64 and restraint rings 63, restrains the inner core 62 from buckling, limiting local buckling of the inner core 62, thereby fully utilizing the core plate's performance. Furthermore, during processing, the restraint rings 63 simply need to be secured over the inner core 62 and restraint rods 64, requiring minimal effort. This operation does not require specialized factory processing, making it simple and easy to manufacture. The restraint rods 64 are made of steel rods, the inner core 62 is made of steel core, and the restraint rings 63 are made of plain round steel bars—all commonly used materials with low cost and excellent economic efficiency. The outer restraint sleeve is made of mortar, preventing corrosion of the anti-buckling brace and requiring no maintenance during its service life.

[0157] 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above 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 buckling-restrained steel plate shear wall, characterized in that: It includes a shear wall and a connector arranged in the shear wall; The connecting piece is fixed to the shear wall; a plurality of through holes are provided on the connecting piece along the thickness direction of the shear wall; The shear wall comprises an inner plate and an outer plate spaced apart in the thickness direction thereof; the connecting member is a plurality of spaced apart connecting pipes; both ends of the connecting pipes are fixed to the inner plate and the outer plate respectively; The connecting pipe is connected to the inner plate or the outer plate via a reinforcement member, the reinforcement member comprising a cylinder and a connecting ring connected to one end of the cylinder, the inner edge of the connecting ring being connected to the outer edge of the cylinder; the cylinder is sleeved inside the connecting pipe, the connecting ring extends out of the connecting pipe and is fixed to the end face of the connecting pipe; the connecting ring is provided with a bonding portion bonded to the inner wall of the inner plate or the outer plate; the shear wall is filled with a thermal insulation material; A reinforcing rib is provided on the outer wall of the connecting pipe along its circumference; the edge of one end of the reinforcing rib is flush with the edge of the end of the cylinder away from the connecting ring; the reinforcing rib is composed of multiple S-shaped reinforcing strips arranged at intervals, and the curve radius of the lower half of the S-shaped reinforcing strip is 1.4 times the curve radius of the upper half.

2. The buckling-restrained steel plate shear wall according to claim 1, characterized in that: The shear wall comprises an inner plate and an outer plate spaced apart along its thickness direction; the connecting member is a connecting plate with a honeycomb cross-section, and the two side surfaces of the connecting plate are respectively fixed to the inner plate and the outer plate.

3. The buckling-restrained steel plate shear wall according to claim 1, wherein: The ends of the connecting piece are connected to the inner plate and the outer plate through connecting feet, and the connecting feet are used to increase the connection area between the connecting piece and the inner plate and the outer plate; the material of the connecting tube is fiber-reinforced composite material, and is connected to the connecting feet through resin.

4. The buckling-restrained steel plate shear wall according to claim 2, wherein: The shape of the connecting foot is the same as the shape of the end of the connecting member.

5. The buckling-restrained steel plate shear wall according to claim 1, wherein: Mounting holes are provided at the upper and lower ends of the shear wall.

6. A composite structure residential system with the buckling-restrained steel plate shear wall according to any one of claims 1 to 5, characterized in that: include: Beams, columns, shear walls and floor slabs; The column includes a round steel pipe and a plurality of T-shaped steels; Concrete is poured into the circular steel tube, and multiple T-shaped steels are arranged at intervals along the circumference of the circular steel tube, and the opposite ends of the web and flange of the T-shaped steel are fixedly connected to the outer wall of the circular steel tube; the web of the T-shaped steel is located on the extension line of the diameter of the circular steel tube, and bolt holes are provided on the flange.

7. The combined structural housing system according to claim 6, characterized in that: The circular steel pipe is provided with a first circular exhaust hole along its axial direction near its outer wall; the diameter of the first circular exhaust hole is greater than or equal to 12 mm.

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