CN112854542B - Steel plate shear wall structure with semi-wrapped concrete combined column and anchoring structure thereof - Google Patents
Steel plate shear wall structure with semi-wrapped concrete combined column and anchoring structure thereof Download PDFInfo
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- CN112854542B CN112854542B CN202011637792.5A CN202011637792A CN112854542B CN 112854542 B CN112854542 B CN 112854542B CN 202011637792 A CN202011637792 A CN 202011637792A CN 112854542 B CN112854542 B CN 112854542B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
- E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Abstract
The invention discloses a steel plate shear wall structure with a semi-wrapped concrete combined column and an anchoring structure thereof, which can effectively provide the anchoring effect of an edge constraint frame of the steel plate shear wall structure on an internal steel plate, so that a sufficient and uniform tension field is formed, the anti-seismic performance of the structure is fully exerted, the bearing capacity of the structure is higher, the hysteretic performance is more stable, the assembly is simple, the steel plate shear wall structure comprises two double-C channel steel combined section columns, two double-C channel steel combined section beams and an internal steel plate, the double-C channel steel combined section columns and the double-C channel steel combined section beams respectively comprise two C-shaped channel steels which are arranged in a back-to-back manner, the edge of the internal steel plate is clamped between the two C-shaped channel steels which are arranged in the back-to-back manner, and the edge of the internal steel plate is connected with the C-shaped channel steels through high-strength bolts in an anchoring manner; the steel channels of the two C-shaped channel steels arranged on the back of the column with the double C-shaped channel steel combined section are filled with concrete to form a semi-wrapped concrete combined column.
Description
Technical Field
The invention belongs to the field of building construction and structural seismic resistance, and particularly relates to a steel plate shear wall structure with a half-wrapped concrete composite column and an anchoring structure thereof.
Background
The steel plate shear wall structure unit mainly comprises an embedded steel plate, a vertical edge restraining member and a horizontal edge restraining member, the width and the thickness of the embedded steel plate are large, an edge restraining frame needs to be embedded to resist lateral displacement, the steel plate is easy to partially buckle along with the gradual increase of lateral force, a tension belt is formed along the diagonal direction, the bulged tension belt plays a role of a diagonal support, and the bearing capacity of the structure is improved.
The premise that the steel plate shear wall structure gives full play to the anti-seismic performance is that large-area buckling of the steel plate occurs and the uniformly distributed tension bands are formed along the diagonal direction, however, the formation of the tension bands can generate large additional bending moment on the edge column, and the edge constraint frame is required to provide sufficient anchoring effect for the built-in steel plate, however, the rigidity of the common steel edge column is small, and the common steel edge column is often broken due to premature buckling in large earthquakes, so that more tension bands are acted on the edge constraint beam, and the steel plate close to the edge constraint column cannot be fully utilized, so that an 'insufficient tension field' is formed, the effective anti-side area of the structure is reduced, and the energy consumption performance is difficult to give full play.
The built-in steel plate is used as an important energy consumption component and is connected with the edge constraint frame in a welding mode, and welding pieces are in a constraint state in the welding process, and butt welding seams have uneven cold and hot phenomena in the welding process, so that the residual stress of the welding seams is large, the steel plate is seriously distorted and deformed, even the steel plate is forcedly pulled to crack, and certain potential safety hazards are formed for the structure; secondly, because the size of the built-in steel plate is larger, the requirement on the quality of the welding seam is relatively higher, and the quality of the spliced welding seam is not easy to guarantee and is not beneficial to the detection work of the welding seam due to the limitation of conditions such as on-site welding stations, welding spaces and the like; in addition, the field assembly welding operation amount is large, and the energy conservation and the environmental protection are not facilitated.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a steel plate shear wall structure with a semi-wrapped concrete composite column and an anchoring structure thereof, which can effectively provide the anchoring effect of an edge constraint frame of the steel plate shear wall structure on an internal steel plate, so that a full and uniform tension field is formed, the anti-seismic performance of the structure is fully exerted, the bearing capacity of the structure is higher, the hysteretic performance is more stable, the assembly is simple, no welding work is required, the production efficiency is improved, and energy is saved.
In order to achieve the above purpose, the invention provides an anchoring structure of a steel plate shear wall, which comprises two double-C channel steel combined section columns, two double-C channel steel combined section beams and a built-in steel plate, wherein the two double-C channel steel combined section columns and the two double-C channel steel combined section beams are arranged in an enclosing manner to form an edge constraint frame, the double-C channel steel combined section columns and the double-C channel steel combined section beams respectively comprise two C-shaped channel steels arranged in a back-to-back manner, each C-shaped channel steel comprises a web plate and flanges arranged on two sides of the web plate, the edge of the built-in steel plate is clamped between the two C-shaped channel steels arranged in the back-to-back manner, and the edge of the built-in steel plate is connected with the C-shaped channel steels through high-strength bolts in an anchoring manner.
Furthermore, the web plate is provided with a plurality of connecting holes at intervals, a plurality of connecting holes are also formed in the corresponding positions of the edges of the built-in steel plates, the C-shaped channel steel and the connecting holes of the built-in steel plates are arranged in a one-to-one correspondence mode, and the high-strength bolts penetrate through the two C-shaped channel steel and the connecting holes of the built-in steel plates which are arranged in a back-to-back mode to be connected in an anchoring mode.
Furthermore, the diameter of the connecting hole is D, the distance from the center of the connecting hole of the C-shaped channel steel to the edge of the web plate is not less than 1.5D, and the center distance between two adjacent connecting holes is not less than 3D.
Furthermore, the built-in steel plate is a rectangular thin steel plate, the width A is larger than or equal to the height B, the ratio of the height B to the thickness t is larger than 250, the maximum distance between the connecting hole of the built-in steel plate and the edge of the built-in steel plate is the smaller value of 4D and 8t, and the maximum distance between the centers of two adjacent connecting holes is the smaller value of 8D and 12 t.
Furthermore, two axial ends of the double-C channel steel combined section beam are wrapped in the double-C channel steel combined section column.
Furthermore, the axial end part of the flange of the C-shaped channel steel of the double C-shaped channel steel combined section column is fixedly provided with a connecting plate, the axial end part of the web of the C-shaped channel steel of the double C-shaped channel steel combined section beam and the corresponding position of the built-in steel plate are respectively provided with a connecting hole, a high-strength bolt penetrates through the connecting plate, the double C-shaped channel steel combined section beam and the connecting hole of the built-in steel plate to be connected in an anchoring mode, and the connecting plate is located on the outer side of the web of the C-shaped channel steel of the double C-shaped channel steel combined section beam.
Furthermore, top bottom angle steel is arranged at the tops of four corners of the edge constraint frame, two limbs of the top bottom angle steel correspond to the flanges of the double-C channel steel combined section beam and the double-C channel steel combined section column respectively, a triangular plate is fixedly arranged between the two limbs of the top bottom angle steel, the flanges, the triangular plate and the built-in steel plate are provided with connecting holes, high-strength bolts penetrate through the two limbs of the top bottom angle steel, the double-C channel steel combined section beam and the connecting holes on the flanges of the double-C channel steel combined section column and are connected in an anchoring mode, and the high-strength bolts penetrate through the triangular plate and the connecting holes of the built-in steel plate in an anchoring mode.
The invention also provides a steel plate shear wall structure with the semi-wrapped concrete composite column, which comprises the anchoring structure of the steel plate shear wall, wherein concrete is poured into the steel grooves of the two C-shaped channel steel which are arranged on the opposite sides of the double C-shaped channel steel composite section column, so that the semi-wrapped concrete composite column is formed.
Furthermore, a plurality of tie bars are fixedly arranged between flanges at two sides of the C-shaped channel steel of the double-C channel steel combined section column at intervals.
Furthermore, a web plate and flanges on two sides of the C-shaped channel steel of the double-C channel steel combined section column are used as concrete pouring templates, and the grade of concrete is not lower than C30.
Compared with the prior art, the two C-shaped channel steels which are arranged in a back-to-back mode are used as the double C-channel steel combined section column and the double C-channel steel combined section beam, the two double C-channel steel combined section columns and the two double C-channel steel combined section beams are arranged in an enclosing mode to form the edge constraint frame, the built-in steel plate is clamped between the double C-channel steels and is anchored and connected through the friction type high-strength bolts, the assembly type anchoring mode is high in reliability, enough anchoring can be provided for the built-in steel plate, a sufficient and uniform tension field is formed, and the anti-seismic performance of the structure is fully exerted; the high-strength bolt has good stress performance, is easy and convenient to install, has strong anchoring capacity to the built-in steel plate, and ensures that the bearing capacity of the whole structure is higher and the hysteretic performance is more stable; moreover, no welding work is carried out on the assembly site, the production efficiency is improved, the energy is saved, the negative influence on the environment is reduced, and the method has a good engineering application prospect.
Furthermore, the high-strength bolt can be used as a shear key to bear and transmit shear force in the built-in steel plate and the edge constraint member, and the purpose of preventing the channel steel and the built-in steel plate from being lifted can be achieved; secondly, the high-strength bolt can be used as a shear connector in the semi-wrapped concrete combined column to connect two materials with different properties, namely steel and concrete, into a stressed whole to resist the horizontal shear at the interface of the steel and the concrete and prevent the relative sliding between the steel and the concrete; furthermore, the nut of the bolt can also play a role in limiting the separation of the concrete member and the steel member, thereby improving the mechanical property of the structure.
Furthermore, the two axial ends of the double-C channel steel combined section beam are arranged in the double-C channel steel combined section column in a wrapping mode through the connecting plates, and the four sides of the built-in steel plate are all anchored in the edge constraint frame.
Furthermore, the top and bottom angle steel can effectively relieve the stress of the beam-column joint and can strengthen the fixation of the built-in steel plate.
According to the steel plate shear wall structure, concrete is poured in the steel grooves of the double-C channel steel combined section column to form the semi-wrapped concrete combined column with high strength and rigidity, the concrete is filled in the column, so that the anchoring effect of the edge-restrained frame column on the built-in steel plate can be improved, the premature local buckling of the flange of the channel steel can be limited, the concrete exposed outside can improve the fire resistance of the structure, and the web plate and the flange of the channel steel can restrain the deformation of the concrete and can also be used as concrete pouring templates, so that the construction progress is accelerated, and the economic benefit is high; under the action of an earthquake, the built-in steel plate can be used for buckling energy consumption before the edge constraint frame, and the semi-wrapped concrete combined column can be used as a second anti-seismic defense line of the structure to supplement energy consumption, so that the safety storage of the structure is improved.
Drawings
FIG. 1 is a schematic diagram of an anchoring structure for a steel plate shear wall according to an embodiment of the present invention;
FIG. 2a is a schematic structural view of a built-in steel plate according to an embodiment of the present invention; fig. 2b is a schematic structural diagram of a C-shaped channel of a double-C-channel combined section column according to an embodiment of the present invention; fig. 2C is a schematic structural view of a double-C channel steel combined section beam according to an embodiment of the present invention;
FIG. 3a is a schematic structural diagram of top and bottom angle steels and a triangle according to an embodiment of the invention; FIG. 3b is a schematic view taken along A-A in FIG. 3 a; FIG. 3c is a schematic view taken along the line B-B in FIG. 3B;
FIG. 4 is a schematic view of a connection structure of a built-in steel plate and a C-shaped channel steel according to an embodiment of the invention;
FIG. 5 is a schematic structural view of a steel plate shear wall of an embodiment of the present invention;
FIG. 6a is a schematic cross-sectional structure view of a beam with a combined cross section of double C-channel steel according to an embodiment of the present invention; FIG. 6b is a schematic cross-sectional structure of a half-wrapped concrete composite post according to an embodiment of the present invention;
the concrete-filled steel plate comprises 1-C-shaped channel steel, 1-1-web plates, 1-2-flanges, 2-built-in steel plates, 3-connecting plates, 4-top and bottom angle steel, 5-triangular plates, 6-connecting holes, 7-high-strength bolts, 8-tie steel bars, 9-double-C-channel steel combined section columns, 10-double-C-channel steel combined section beams, 11-semi-wrapped concrete combined columns and 12-concrete.
Detailed Description
The present invention will be further explained with reference to the drawings and specific examples in the specification, and it should be understood that the examples described are only a part of the examples of the present application, and not all examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the invention provides an anchoring structure of a steel plate shear wall, which is shown in fig. 1 and comprises two double-C channel steel combined section columns 9, two double-C channel steel combined section beams 10 and a built-in steel plate 2, wherein the two double-C channel steel combined section columns 9 and the two double-C channel steel combined section beams 10 are arranged in an enclosing mode to form an edge constraint frame, the double-C channel steel combined section columns 9 and the double-C channel steel combined section beams 10 respectively comprise two C-shaped channel steels 1 which are arranged in an opposite mode, the two C-shaped channel steels 1 which are arranged in the opposite mode are identical in material and geometric size, each C-shaped channel steel 1 comprises a web plate 1-1 and flanges 1-2 arranged on two sides of each web plate 1-1, the edges of the built-in steel plate 2 are clamped between the two C-shaped channel steels 1 which are arranged in the opposite mode, and the edges of the built-in steel plate 2 are connected with the C-shaped channels 1 in an anchoring mode through high-strength bolts 7.
In this embodiment, a plurality of connecting holes 6 are formed in the web plate 1-1 of the C-shaped channel steel 1 at intervals, a plurality of connecting holes 6 are also formed in the corresponding positions of the edges of the built-in steel plates 2, the two C-shaped channel steels 1 arranged opposite to each other are arranged in one-to-one correspondence with the connecting holes 6 of the built-in steel plates 2, and the high-strength bolt 7 penetrates through the two C-shaped channel steels 1 arranged opposite to each other and the connecting holes 6 of the built-in steel plates 2 to be connected in an anchoring manner.
In this embodiment, the mounting positions of the C-shaped channels 1 in the double-C channel combined section column 9 are reserved at the two axial ends of the double-C channel combined section beam 10 during assembly, the height of the double-C channel combined section column 9 is equal to that of the wall body of the built-in steel plate 2, the two axial ends of the double-C channel combined section beam 10 are wrapped in the double-C channel combined section column 9, and it is ensured that the four rectangular sides of the built-in steel plate 2 are anchored in the edge constraint frame.
Preferably, a connecting plate 3 is fixedly arranged at an axial end portion of a flange 1-2 of a C-shaped channel steel 1 of the double C-channel steel combined section column 9, connecting holes 6 are formed in corresponding positions of the connecting plate 3, an axial end portion of a web 1-1 of the C-shaped channel steel 1 of the double C-channel steel combined section beam 10 and the built-in steel plate 2, a high-strength bolt 7 penetrates through the connecting plate 3, the double C-channel steel combined section beam 10 and the connecting holes 6 of the built-in steel plate 2 to be connected in an anchoring mode, and the connecting plate 3 is located on the outer side of the web 1-1 of the C-shaped channel steel 1 of the double C-channel steel combined section beam 10. Namely, a pair of connecting plates 3 are fixedly arranged on the external flanges 1-2 of two C-shaped channel steels 1 of a double C-shaped channel combined section column 9 at the joint of an edge constraint frame beam column, connecting holes 6 are reserved, and a high-strength bolt 7 sequentially penetrates through the reserved connecting hole 6 of the front connecting plate 3, the connecting hole 6 of a web plate 1-1 of the front C-shaped channel steel 1 of the double C-shaped channel combined section beam 10, the connecting hole 6 corresponding to the built-in steel plate 2, the connecting hole 6 of the web plate 1-1 of the rear C-shaped channel steel 1 of the double C-shaped channel combined section beam 10 and the connecting hole 6 of the rear connecting plate 3 to be connected in an anchoring mode.
Preferably, in order to relieve stress concentration of a beam column node area, top bottom angle steel 4 is respectively installed at four corners of a rectangle defined by the edge constraint frame, the top bottom angle steel 4 is arranged in an equilateral mode, the top bottom angle steel 4 does not extend out of the steel plate wall edge constraint frame, the limbs are in back butt joint with the joint part of the flange 1-2 of the C-shaped channel steel 1 of the edge constraint frame beam column, the two limbs penetrate through the reserved connecting hole 6 through high-strength bolts 7 to be fixedly connected with the inner flange 1-2 of the C-shaped channel steel 1 of the beam column, and the built-in steel plate 2 is bolted through the connecting hole 6 of the triangular plate 5 on one side of the cross section and is fixed again. Specifically, top and bottom angle steels 4 are arranged at the tops of four corners of the edge constraint frame, two limbs of each top and bottom angle steel 4 correspond to the inner side flanges 1-2 of the double-C channel steel combined section beam 10 and the double-C channel steel combined section column 9 respectively, a triangular plate 5 is fixedly arranged between the two limbs of each top and bottom angle steel 4, the two limbs, the flanges 1-2, the triangular plate 5 and the built-in steel plate 2 of each top and bottom angle steel 4 are provided with connecting holes 6, high-strength bolts 7 penetrate through the two limbs of each top and bottom angle steel 4, the double-C channel steel combined section beam 10 and the connecting holes 6 of the flanges 1-2 of the double-C channel steel combined section column 9 to be anchored and connected, and the high-strength bolts 7 penetrate through the triangular plates 5 and the connecting holes 6 of the built-in steel plate 2 to be anchored and connected.
In this embodiment, all steel members need to be prefabricated before assembly, and a connection hole is reserved at a bolt connection position, specifically referring to fig. 2a, 2b and 2C, two C-shaped channel beams 1 with the same length and cross-sectional dimension are adopted for the edge frame, the cross section C of the C-shaped channel beam 1 of the double-C-channel combined cross-sectional column 9 is h1 b1 d1, the cross section C of the C-shaped channel beam 1 of the double-C-channel combined cross-sectional beam 10 is h 2b 2 d2, h is the height of the web 1-1, b is the width of the flange 1-2, and d is the thickness of the C-shaped channel beam 1, and preferably, the height h1 of the web 1-1 of the C-shaped channel beam 1 of the double-C-channel combined cross-sectional column 9 may be smaller than the height h2 of the web 1-1 of the C-shaped channel beam 1 of the double-C-channel combined cross-sectional beam 10. Preferably, two rows and multiple rows of connecting holes 6 with the diameter of D are formed in the web plate 1-1 of the C-shaped channel steel 1, the distance from the center of each connecting hole 6 to the edge of the web plate 1-1 is not less than 1.5D, the center distance between every two adjacent connecting holes 6 is not less than 3D, and meanwhile, the connecting holes 6 of the web plates 1-1 of the two C-shaped channel steels 1 which are back to back are ensured to be in one-to-one correspondence.
The built-in steel plate 2 is a rectangular thin steel plate with the plate width dimension of A & ltB & gt and the thickness of t, and A is larger than or equal to B, and B/t is larger than 250. Preferably, connecting holes 6 with the diameter of D are reserved at the mounting positions of the transverse and longitudinal edge beam columns of the built-in steel plates 2, and the size and the position of each hole correspond to the connecting holes 6 of the web plates 1-1 of the C-shaped channel steel 1 of the beam column one by one. Preferably, the maximum distance between the center of the connecting hole 6 and the edge of the built-in steel plate 2 is limited to be the smaller of 4D and 8t, and the maximum distance between the centers of two adjacent connecting holes 6 is the smaller of 8D and 12t, so that the anchoring capability of the high-strength bolt 7 on the built-in steel plate 2 is ensured. The length of the C-shaped channel steel 1 in the double-C channel steel combined section column 9 is more than or equal to B, and the length of the C-shaped channel steel 1 in the double-C channel steel combined section beam 10 is A-2h 1.
Preferably, when the C-shaped channel steel 1 component of the double-C channel steel combined section column 9 is prefabricated, the two connecting plates 3 are respectively welded on the external flange 1-2 of the C-shaped channel steel 1 on the inward side of the axial end of the double-C channel steel combined section column 9 component. Two rows of connecting holes 6 with the diameter of D are reserved in the connecting plate 3, the distance between each connecting hole 6 and the edge of the connecting plate 3 is 1.5D, and the distance between the centers of the adjacent connecting holes 6 is 3D.
Preferably, in the double-C channel steel combined section column 9 of this embodiment, the tie bars 8 with a diameter of 6mm are welded between the two flanges 1-2 of the C-shaped channel steel 1, the distance between the tie bars 8 and the outer sides of the flanges is 10mm, the distance between the tie bars is 60mm, and the positions of the tie bars 8 and the connecting holes 6 are staggered, so that the installation of the high-strength bolt 7 is facilitated.
Preferably, after temporary assembly and fixation, 8 equilateral top and bottom angle steels 4 are arranged at four corners of the front and back surfaces of the built-in steel plate 2 in the edge constraint frame, the cross section L of each top and bottom angle steel 4 is b3 × d3, b3 is the limb length of each top and bottom angle steel 4, and d3 is the thickness. Referring to fig. 3a, 3b and 3C, the width S of two limbs of the top-bottom angle steel 4 is not more than the width of the flange 1-2 of the edge frame channel steel member, a triangular plate 5 is arranged on one side of the side surface enclosed by the two limbs, connecting holes 6 with the diameter of D are reserved in the two limbs of the top-bottom angle steel 4 and the triangular plate 5 along the limb tip direction, and corresponding connecting holes 6 are reserved at the connecting positions of the flange 1-2 of the C-shaped channel steel 1 of the edge constraint frame beam column and the embedded steel plate 2 and the equilateral top-bottom angle steel 4.
It can be understood that, in this embodiment, the double channel steel is adopted as the edge constraint frame to anchor the built-in steel plate 2 through the high-strength bolt 7, specifically referring to fig. 4, fig. 6a and fig. 6b, the two C-shaped channel steels 1 are placed back to back at the set positions where the front and rear sides of the built-in steel plate 2 are connected with the edge constraint frame, the web 1-1 of the two C-shaped channel steels 1 and the connecting hole 6 corresponding to the built-in steel plate 2 are centered, and then the high-strength bolt 7 sequentially penetrates through the web 1-1 of the front C-shaped channel steel 1, the built-in steel plate 2 and the web 1-2 of the rear C-shaped channel steel 1 to be fixedly connected, so as to anchor the built-in steel plate 2.
The embodiment of the invention also provides a steel plate shear wall structure with the semi-wrapped concrete combined column, and the steel plate shear wall structure comprises the anchoring structure shown in fig. 5, wherein concrete 12 is poured into the steel grooves of the two C-shaped channel steel 1 arranged oppositely of the double-C channel steel combined section column 9 to form a semi-wrapped concrete combined column 11.
After all steel members are assembled, concrete 12 is poured into the steel grooves of the two C-shaped channel steels 1 of the double-C-channel steel combined section column 9, after vibration and maintenance in time, a steel plate shear wall structure with a semi-wrapping type concrete combined column 11 is formed, and the edge restraint frame beam is still the double-C-channel steel combined section beam 10. Preferably, the semi-wrapped concrete composite column 11 can use the web 1-1 and the flange 1-2 of the C-channel steel 1 as a template when casting, the concrete mark number should not be lower than C30, and the cross section of the double C-channel steel composite section beam 10 and the semi-wrapped concrete composite column 11 is shown in fig. 6a and 6 b.
The invention adopts two C-shaped channel steels 1 with the same material and geometric dimension as a steel plate shear wall edge restraining component, an internal steel plate 2 is clamped between two webs 1-1 of back-to-back double C-shaped channel steels 1, connecting holes 6 are reserved at corresponding connecting positions of the two webs 1-1 of the double C-shaped channel steels 1 and the edges of the internal steel plate 1, the internal steel plate 2 is fixedly connected through high-strength bolts 7 penetrating through the connecting holes 6, and concrete 12 is poured into steel grooves of the two channel steels of an edge restraining frame column after assembly is completed, so that a steel plate shear wall structure with a high-strength and high-rigidity semi-wrapped concrete combined column 11 is formed. The bolt pretightening force is utilized to provide enough anchoring for the built-in steel plate 2, so that a sufficient and uniform tension field is generated along the diagonal line under the action of an earthquake, and no welding work is carried out on the assembly site; the inner filling concrete 12 can limit the local buckling of the flange of the channel steel, and can also improve the fire resistance of the structure, thereby improving the safety storage of the structure and having good engineering application prospect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the embodiments of the present invention in nature.
Claims (3)
1. The anchoring structure of the steel plate shear wall is characterized by comprising two double-C channel steel combined section columns (9), two double-C channel steel combined section beams (10) and a built-in steel plate (2), wherein the two double-C channel steel combined section columns (9) and the two double-C channel steel combined section beams (10) are arranged in an enclosing mode to form an edge constraint frame, the double-C channel steel combined section columns (9) and the double-C channel steel combined section beams (10) respectively comprise two C-shaped channel steels (1) which are arranged in a back-to-back mode, each C-shaped channel steel (1) comprises a web plate (1-1) and flanges (1-2) arranged on two sides of the web plate (1-1), the web plate (1-1) and the flanges (1-2) on two sides of the C-channel steel (1) of each double-C channel steel combined section column (9) are used as a concrete (12) pouring template, the edge of the built-in steel plate (2) is clamped between the two C-shaped channel steels (1) which are arranged oppositely, and the edge of the built-in steel plate (2) is connected with the C-shaped channel steel (1) in an anchoring mode through a high-strength bolt (7); the web plate (1-1) is provided with a plurality of connecting holes (6) at intervals, the corresponding positions of the edges of the built-in steel plates (2) are also provided with a plurality of connecting holes (6), the two C-shaped channel steel (1) which are arranged in an opposite way are arranged in one-to-one correspondence with the connecting holes (6) of the built-in steel plates (2), and the high-strength bolt (7) penetrates through the two C-shaped channel steel (1) which are arranged in an opposite way and the connecting holes (6) of the built-in steel plates (2) to be connected in an anchoring way; the two axial ends of the double-C channel steel combined section beam (10) are wrapped in the double-C channel steel combined section column (9), the axial end part of the flange (1-2) of the C-shaped channel steel (1) of the double C-shaped channel steel combined section column (9) is fixedly provided with a connecting plate (3), the axial end parts of the web plates (1-1) of the C-shaped channel steel (1) of the connecting plate (3) and the double-C channel steel combined section beam (10), and the corresponding positions of the built-in steel plates (2) are provided with connecting holes (6), high-strength bolts (7) penetrate through the connecting plates (3), the double-C channel steel combined section beam (10) and the connecting holes (6) of the built-in steel plates (2) for anchoring connection, the connecting plate (3) is positioned on the outer side of a web plate (1-1) of the C-shaped channel steel (1) of the double-C channel steel combined section beam (10);
top and bottom angle steels (4) are arranged at the tops of four corners of the edge constraint frame, two limbs of each top and bottom angle steel (4) respectively correspond to flanges (1-2) of the double-C channel steel combined section beam (10) and the double-C channel steel combined section column (9), a triangular plate (5) is fixedly arranged between two limbs of the top-bottom angle steel (4), connecting holes (6) are formed in the two limbs of the top-bottom angle steel (4), the flanges (1-2), the triangular plate (5) and the built-in steel plate (2), a high-strength bolt (7) penetrates through the two limbs of the top-bottom angle steel (4), the double-C channel steel combined section beam (10) and the connecting holes (6) of the flanges (1-2) of the double-C channel steel combined section column (9) to be anchored and connected, and the high-strength bolt (7) penetrates through the triangular plate (5) and the connecting holes (6) of the built-in steel plate (2) to be anchored and connected;
concrete (12) is poured into the steel grooves of the two C-shaped channel steels (1) which are arranged on the opposite sides of the double-C channel steel combined section column (9) to form a semi-wrapped concrete combined column (11);
the diameter of each connecting hole (6) is D, the distance from the center of each connecting hole (6) of the C-shaped channel steel (1) to the edge of the web plate (1-1) is not less than 1.5D, and the center distance between every two adjacent connecting holes (6) is not less than 3D;
the built-in steel plate (2) is a rectangular thin steel plate, the width A is larger than or equal to the height B, the ratio of the height B to the thickness t is larger than 250, the maximum distance between the connecting hole (6) of the built-in steel plate (2) and the edge of the built-in steel plate (2) is smaller than 4D and 8t, and the maximum distance between the centers of two adjacent connecting holes (6) is smaller than 8D and 12 t.
2. The anchoring structure of the steel plate shear wall according to claim 1, wherein a plurality of tie bars (8) are fixedly arranged between flanges (1-2) at two sides of the C-shaped channel (1) of the double-C channel combined section column (9) at intervals.
3. The anchoring structure for a steel plate shear wall according to claim 1, wherein the concrete (12) is not lower than C30.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637792.5A CN112854542B (en) | 2020-12-31 | 2020-12-31 | Steel plate shear wall structure with semi-wrapped concrete combined column and anchoring structure thereof |
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| CN202011637792.5A CN112854542B (en) | 2020-12-31 | 2020-12-31 | Steel plate shear wall structure with semi-wrapped concrete combined column and anchoring structure thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2009100337B4 (en) * | 2009-04-10 | 2009-10-29 | Allan Charles Hockley | Prefabricated interlocking wall construction panel |
| CN102926484B (en) * | 2012-10-31 | 2014-08-06 | 沈阳建筑大学 | Cross reinforced steel plate buckling-preventing energy dissipation wall |
| CN102913002B (en) * | 2012-11-22 | 2015-07-29 | 北京城乡建设集团有限责任公司 | Integral steel structure prefabricated house and mounting method thereof |
| CN104372872A (en) * | 2014-11-06 | 2015-02-25 | 安徽鸿路钢结构(集团)股份有限公司 | Assembling-type multipurpose steel plate shear wall |
| CN204919990U (en) * | 2015-09-09 | 2015-12-30 | 王志强 | Y type structural section |
| CN105780968B (en) * | 2016-03-15 | 2018-09-14 | 兰州理工大学 | Steel plate shear wall structure suitable for highlight lines area high-rise/super high-rise building |
| CN106284788A (en) * | 2016-09-18 | 2017-01-04 | 中核能源科技有限公司 | A kind of unilateral steel plate concrete hollow combination roof system |
| CN107227808B (en) * | 2017-07-04 | 2019-09-17 | 重庆大学 | A kind of buckling-restrained steel plate shear force wall system of full assembled |
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Inventor after: Yin Zhanzhong Inventor after: Liu Xingchen Inventor after: Liu Anfei Inventor after: Li Xinwei Inventor after: Feng Dazhe Inventor after: Mao Yongsheng Inventor after: Yang Bo Inventor after: Chen Chengyue Inventor after: Wang Zhaohui Inventor after: Yan Luyao Inventor after: Lv Wenhui Inventor after: Zhu Youtao Inventor before: Yin Zhanzhong Inventor before: Liu Xingchen Inventor before: Liu Anfei Inventor before: Li Xinwei Inventor before: Feng Dazhe Inventor before: Mao Yongsheng Inventor before: Yang Bo Inventor before: Chen Chengyue Inventor before: Wang Zhaohui Inventor before: Yan Luyao Inventor before: Lv Wenhui Inventor before: Zhu Youtao |
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