CN111851791A - Assembled steel frame-steel sheet shear force wall structure - Google Patents
Assembled steel frame-steel sheet shear force wall structure Download PDFInfo
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- CN111851791A CN111851791A CN202010720221.1A CN202010720221A CN111851791A CN 111851791 A CN111851791 A CN 111851791A CN 202010720221 A CN202010720221 A CN 202010720221A CN 111851791 A CN111851791 A CN 111851791A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 302
- 239000010959 steel Substances 0.000 title claims abstract description 302
- 238000009413 insulation Methods 0.000 claims abstract description 47
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 239000012774 insulation material Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000011372 high-strength concrete Substances 0.000 claims description 3
- 239000011376 self-consolidating concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 19
- 230000035699 permeability Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000011378 shotcrete Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention provides an assembled steel frame-steel plate shear wall structure. The structure is formed by combining columns, steel beams, steel plate shear walls and floor slabs. At least one part of the column is a special-shaped column, the special-shaped column is an L-shaped, T-shaped, cross-shaped or Z-shaped column with a multi-chamber cavity, and concrete can be poured into the cavity of the special-shaped column according to the requirement; the steel beam is an H-shaped steel beam or a sound insulation steel beam; the column cavity of the joint area connected with the beam column is not provided with a diaphragm plate, and the outer surface of the column is not provided with an external reinforcing ring plate; the steel plate shear wall is connected with the steel beam by adopting a Z-shaped, S-shaped, Y-shaped or 7-shaped connecting plate; the floor slab adopts a laminated floor slab or a steel bar truss floor bearing plate; the beam, the column and the wall of the structure are flexibly arranged, the column can be embedded in the building wall, the anti-seismic performance and the sound insulation performance are good, and the beam, the column and the wall are manufactured in a factory and are assembled and constructed, so that the beam, the column and the wall have good economical efficiency.
Description
Technical Field
The invention relates to the technical field of assembly type buildings suitable for multiple high-rise buildings, in particular to an assembly type steel frame-steel plate shear wall structure.
Background
The traditional cast-in-place building construction technology has the defects of low production efficiency, high material consumption, high construction waste, high environmental pollution and the like, and compared with the cast-in-place building, the assembly type building has the main advantages of high assembly efficiency, high precision, reliable quality, environmental protection (less construction waste, energy conservation and water conservation), and capability of greatly reducing manual dependence.
Compared with developed countries, the difference of the permeability of the fabricated building in China is huge. The modernization of the building of mainly developed countries is advanced more mature, the building industry is relatively mature and perfect, and the permeability of the fabricated building in 2017 of the country, such as the United states, Japan, France, Singapore and the like, reaches or exceeds 70 percent, compared with the permeability of China, the permeability is less than 10 percent, the permeability of the fabricated building in China has a large gap, and the promotion space is huge.
Compared with a concrete assembly type (PC) building, the steel structure assembly type building has natural advantages: the assembly is easy to realize, the construction speed is faster, the materials can be recycled, the section of the component is small, the using space is large, the anti-seismic performance is good, the construction quality is easy to control, and the like. Meanwhile, the steel structure assembly type building also has the problems and the current situation that the manufacturing cost is slightly higher than that of a concrete cast-in-place building, the steel structure talents are in short supply, the user acceptance is limited and the like.
The rectangular column is adopted in the building at present, and like this kind of regular cross section in use of rectangular column, the cylinder can be outstanding the wall, not only occupies certain interior space, is unfavorable for putting of furniture article moreover.
In order to solve the problem that indoor steel columns protrude out of the wall surface, some buildings in the prior art adopt a concrete filled steel tube combined special-shaped column, and the section of the column is an L-shaped column, a T-shaped column and a cross-shaped special-shaped column which are formed by connecting a plurality of concrete filled steel tube rectangular columns serving as column limbs through a connecting plate and a rib plate. The connection structure between the connecting plates and the rib plates of the column section and the building wall is complex, and the sound insulation performance needs to be improved.
Among the current steel structure system, often can use the steel shotcrete to constitute anti lateral force component, because the stability problem ratio of steel shotcrete is more outstanding, the support cross-section can be bigger, often still need go into building wall internal hiding with the steel shotcrete package except that with the steel volume big, this brings a lot of difficulties with regard to the construction for building wall, the wall body that the steel shotcrete belonged to simultaneously can be than thicker, is unfavorable for pleasing to the eye on the one hand, on the other hand also occupies indoor usage space.
The assembled steel structure system is applied to civil residential buildings, particularly the positions of the steel beams and the inner partition walls have the problems of poor sound insulation performance, easy limitation on decoration and fitment and the like, and the steel beam height range of the wall body cannot be nailed and hung with decorative components, so that the habitability of a steel structure house is poor.
The connected node of steel core concrete column and H shape girder steel among the prior art mainly includes: column wall flitch thickening connection, inner baffle type connection, reinforced outer ring plate type connection and the like. The node forms have some disadvantages in the aspects of construction quality, transportation, construction complexity, comprehensive cost and the like. The welding volume of column wall flitch thickening connected mode is great and construction quality is difficult to guarantee, and traditional interior diaphragm formula connected node structure is more complicated to need built-in baffle, bring the difficulty for concrete placement, be difficult to guarantee the quality of pouring concrete, be difficult to be applicable to little section post. The reinforced outer ring plate type connecting node is large in size, not beneficial to component transportation, attractive in appearance and not suitable for residential buildings. Therefore, beam-column connection nodes which are simple in structure, convenient to transport and easy to cast concrete are needed in the market.
In the prior art, for the design of the steel plate shear wall, the existing specifications all assume that the steel plate shear wall does not bear vertical load, and in order to ensure that the steel plate shear wall bears the vertical load as little as possible, the steel plate shear wall and the steel beam are often welded in the rear direction in the prior art, so that inconvenience is brought to construction, and the vertical load of the steel plate shear wall in the structural deformation process cannot be completely and effectively released.
The composite floor slab is produced by combining prefabrication and cast-in-place, and the prefabricated bottom plate and the upper cast-in-place concrete layer are combined into an integral composite floor slab. The composite floor slab has the integrity of a cast-in-place concrete slab, and also has the advantages of high rigidity, good crack resistance, no increase of reinforcing steel bar consumption, no need of bottom die removal, short construction period and the like. In an assembled steel structural system, typically, the composite floor is supported on the top of the beam; at column plate handing-over department, the unable normal support of coincide floor often adopts cast in situ reinforced concrete floor to solve this problem, and manpower and materials not only are wasted so, still can the time limit for a project.
Disclosure of Invention
The invention provides a steel structure system, which solves the technical problems of small structural rigidity, low component bearing capacity, poor anti-seismic performance, low assembly degree, high manufacturing cost, exposed indoor beams and columns, locally thickened wall bodies, poor sound insulation performance, unsatisfactory connection effect of steel plate shear walls and steel beams, easiness in limitation of decoration and fitment, difficulty in construction of local floor slabs and the like in the conventional assembly type building technology.
The technical solution of the invention is as follows:
the assembled steel frame-steel plate shear wall structure is formed by combining steel columns, steel beams, steel plate shear walls and floor slabs: the steel columns and the steel beams are rigidly connected to form a frame structure, and the frame structure mainly plays a role in bearing vertical force and assisting the steel plate shear wall in bearing horizontal effects such as earthquake and wind load; the steel plate shear wall connected with the steel beam is arranged at a proper position to enhance the integral rigidity of the structure, and the steel plate shear wall mainly plays a role in bearing horizontal actions such as earthquake and wind load; the floor slabs are laid on the top surfaces of the steel beams and are reliably connected with the steel beams and the steel columns, and the floor slabs are mainly used for bearing vertical loads at the floor and transmitting the loads to the steel beams.
The column of the system can be completely composed of special-shaped columns according to the structural requirements, or can be formed by mixing part of rectangular columns and part of special-shaped columns, and the columns can be embedded into a wall body and are not exposed.
Furthermore, the rectangular column of the system is a rectangular cavity steel pipe formed by directly splicing and forming steel plates or splicing and forming the steel plates after bending, and concrete can be poured into the section of the cavity according to needs.
Furthermore, the special-shaped concrete-filled steel tube column is an L-shaped, T-shaped, cross-shaped or Z-shaped special-shaped column with a multi-chamber cavity, and is formed by combining part or all of six basic section units, namely a rectangular tube section, a U-shaped section, an L-shaped section, an S-shaped section, an H-shaped section and a straight steel plate section, and a shared side wall is arranged between adjacent cavities of the special-shaped column; concrete can be poured into the cavity section as required, the side wall of the steel column can effectively restrain core concrete, so that the compressive strength and the deformability of the concrete are obviously improved, the side wall of the steel column can be effectively prevented from local buckling due to the existence of the concrete, the steel column and the side wall of the steel column can work together to fully exert the advantages of high tensile property of steel and good compressive property of the concrete, and the bearing capacity and the sound insulation performance of the column are greatly improved.
Further, concrete in the columns of the system is poured from top to bottom or from bottom to top after the steel columns are installed, and the concrete is common concrete, high-strength concrete, light aggregate concrete, self-compacting concrete or micro-expansion concrete.
Furthermore, in a beam-column joint area where the column is connected with the steel beam, no diaphragm plate is arranged in the column cavity, no external reinforcing ring plate is arranged on the outer surface of the column, the wall thickness of the cavity steel column is greater than that of the cavity steel column outside the beam-column joint area, and the wall thickness of the cavity steel column in the beam-column joint area is reinforced to improve the bearing capacity of the cavity steel column and the deformation resistance of the column wall so as to ensure that the bending moment of the steel beam can be effectively transmitted to the steel column; the web plate of the steel beam is connected with the cavity steel column through a connecting plate and a bolt, so that the shearing force of the steel beam is transmitted to the steel column; the flange of the steel beam is directly welded with the column wall of the cavity steel column, so that the bending moment of the steel beam is transmitted to the steel column; the beam end reinforcing steel plates are attached to the outer surface roots of the upper flange and the lower flange of the steel beam, and the plastic hinge of the end part of the steel beam is far away from a beam column joint area, so that the design idea of a strong joint and weak rod piece is realized.
The steel beam of the system adopts an H-shaped steel beam or a sound insulation steel beam, and the sound insulation steel beam is connected with the building wall body by adopting a sound insulation construction method;
furthermore, the sound insulation steel beam specifically comprises an H-shaped or I-shaped steel beam, a sound insulation plate and a split bolt assembly; the sound insulation plates are respectively arranged on two sides of a web plate of the H-shaped or I-shaped steel beam, and the H-shaped or I-shaped steel beam and the sound insulation plates are reliably connected through the split bolt assemblies; holes (web holes) are formed in a web plate of the H-shaped or I-shaped steel beam at certain intervals, bolt holes are formed in the sound insulation plate at certain intervals, countersunk holes are formed in the surface of one side of the mounting nut, and the arrangement positions of the bolt holes and the countersunk holes of the sound insulation material correspond to the positions of the web plate holes of the H-shaped or I-shaped steel beam one by one; the sizes of the bolt holes and the web plate holes are larger than that of the split screws, and the size of the counter bores is larger than that of the nuts;
furthermore, the sound insulation steel beams are connected with the building wall boards through U-shaped or L-shaped connecting pieces, elastic sealing materials are filled in gaps between the sound insulation steel beams and the wall boards, anti-crack mortar is smeared to be smooth after anti-crack fibers are pasted in joint areas of the H-shaped or I-shaped steel beams, the cement-based sound insulation materials and the wall boards, and the beam width is not larger than the thickness of the building wall body; the surface of the H-shaped or I-shaped steel beam is coated with an anti-corrosion and fireproof layer; the sound insulation steel beam and the sound insulation connection between the sound insulation steel beam and the building wallboard improve the sound insulation performance of the partition wall and improve the habitability of steel structure houses.
The steel plate shear wall can adopt a buckling-restrained steel plate shear wall, a stiffened steel plate shear wall, a non-stiffened steel plate shear wall and a slotted steel plate shear wall, the steel plate shear wall is installed between adjacent floors at the same vertical position by selecting a proper position, and the steel plate shear wall can be connected with a steel beam only or can be connected with the steel beam and a steel column.
Furthermore, the steel plate shear wall is connected with the steel beam through a connecting plate, the connecting plate is a Z-shaped, S-shaped, Y-shaped or 7-shaped transition connecting piece with one end connected with the steel plate shear wall and one end connected with the steel beam, and vertical load transmitted to the steel plate shear wall is released through deformation of the connecting plate; the connecting plate is connected with the steel beam in a welding mode and is arranged right below (or right above) a web plate of the steel beam; the connecting plate is connected with the steel plate shear wall by adopting welding connection or high-strength bolt connection; when the welding connection is adopted, the mounting bolts are used for fixing, and then the welding connection is adopted; and a vertical long round hole is formed in the connecting piece or the steel plate shear wall, so that the installation is more convenient. The connecting piece can effectively transmit transverse shear force, the rigidity of the connecting piece can be adjusted by changing the width-thickness ratio of the connecting piece, vertical load transmitted by the steel beam is effectively released through self vertical deformation, and the purpose of reducing the vertical load borne by the steel plate shear wall is achieved.
Wherein the floor slab of the body system adopts a laminated floor slab or a steel bar truss floor bearing plate;
further, the steel beam and the floor slab are reliably connected through the shear-resistant studs;
further, when the floor adopted the coincide floor, coincide floor bottom plate failed the direct support on the roof beam time, at the unable normal support of column casing handing-over department coincide floor, consequently this structure provides a form simple, and convenient operation, the connection mode of the coincide floor that can the reduction of erection time and steel column: the laminated floor slab comprises precast slabs, upper reinforcing steel bars and a cast-in-place concrete layer; the connecting joint at the joint of the composite floor slab and the column comprises an upper connecting plate, a stiffening plate and a lower supporting plate; the upper connecting plate is a steel plate with the top surface corresponding to the lower surface of the upper reinforcing steel bar of the composite floor slab, welded to the side of the column and horizontally placed; the lower supporting plate is a steel plate with the top surface corresponding to the lower surface of the composite floor slab, welded to the column side and horizontally placed; the stiffening plate is a vertically placed steel plate which is arranged between the upper connecting plate and the lower supporting plate at intervals, and is respectively connected with the upper connecting plate, the column and the lower supporting plate; the prefabricated slab of the composite floor slab is supported on the lower supporting plate, the upper reinforcing steel bar of the composite floor slab is connected with the upper connecting plate, and the cast-in-place concrete layer is poured on the top surface of the prefabricated slab to form the composite floor slab.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the mode that the steel column, the steel beam, the steel plate shear wall and the floor slab are combined is adopted, so that the steel column shear wall is suitable for multi-story and high-rise buildings, and the use requirements of people on the buildings can be met. The scheme effectively improves the rigidity of the structure and the bearing capacity of the component, realizes the assembly construction and intelligent management of factory processing and field installation, and can reduce the steel consumption and construction cost of the structure.
The special-shaped column (L-shaped, T-shaped, cross-shaped and Z-shaped) can be embedded into the building wall body without being exposed, so that the problems that a large-section rectangular column protrudes out of the wall surface, the use of residents is influenced and the appearance is not attractive enough are solved;
this patent adopts to have shared lateral wall between the adjacent cavity of special-shaped post, and each cavity arranges in succession for the connection structure of post and building wall is simple, makes the sound insulation performance effectively improve behind the concreting in the cavity of post.
Compared with the prior art, the beam column rigid connection node adopting a local thick-wall pipe mode does not need to be provided with an inner partition plate in a node area column, simplifies the connection structure of the beam column node, can be used in a concrete filled steel tubular column frame system of an assembly type building, better ensures the construction quality of pouring concrete in a small-section concrete filled steel tubular column and a special-shaped concrete filled steel tubular column, fully utilizes the advantages of two materials of concrete and steel, is convenient to transport and simple to construct;
the steel plate shear wall is used as a main lateral force resistant component, so that the rigidity of the structure and the bearing capacity of the component are effectively improved, and the defects of local increase of building wall thickness, poor practicability and attractiveness and the like caused by large supporting section in a supporting system are overcome;
the steel plate shear wall and the steel beam are connected by the aid of the Z-shaped, S-shaped, Y-shaped or 7-shaped transition connecting pieces, so that horizontal force between the steel plate shear wall and the steel beam can be effectively transmitted, vertical load transmitted to the steel plate shear wall by the steel beam is reduced, the calculation assumption that the steel plate shear wall does not bear the vertical load of the structure is realized, and the connection mode of the steel plate shear wall and the steel beam is simplified;
the sound insulation steel beam and the sound insulation structure connecting mode of the sound insulation steel beam and the building wall are adopted, the sound insulation performance of the steel structure building is improved, decorative components can be nailed and hung on the wall within the height range of the steel beam, and the habitability of a steel structure house is improved;
the coincide floor that this patent adopted and the connected node of steel column are a simple structure, convenient operation's connected mode, have solved the problem of being connected of coincide floor and steel column side among the prior art, have improved the efficiency of construction.
Drawings
The invention will be better understood from the following description of specific embodiments thereof, taken in conjunction with the accompanying drawings. Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings in which like or similar reference characters refer to the same or similar parts.
FIG. 1 is a schematic plan view of an assembled steel frame-steel plate shear wall structure according to the present invention;
FIG. 2 is a schematic elevation view of an assembled steel frame-steel plate shear wall structure according to the present invention;
FIG. 3 is a schematic cross-sectional view of a column according to the present invention;
FIG. 4 is a schematic view of a buckling restrained steel plate shear wall according to the present invention;
FIG. 5 is a schematic view of a beam-column connection according to the present invention;
FIG. 6 is a schematic view of the connection of the steel plate shear wall and steel beams of the present invention;
FIG. 7 is a schematic view of the sound insulation steel beam and the connection thereof with a building wall;
figure 8 is a schematic view of the connection of the composite floor slab with the steel columns according to the present invention;
description of reference numerals:
1-a rectangular column; 2-T-shaped columns; 3-a cross-shaped column; 4-L-shaped columns; 5-a steel beam; 6-steel plate shear wall; 7-a floor slab; 8-embedded steel plate; 9-a buckling-restrained cover plate; 10-a connecting plate; 11-split bolt assembly; 12-steel plate holes; 13-oppositely pulling screw rods; 14-a nut; 15-a gasket; 16-bolt holes; 17-counter sink; 18-shear studs; 19-upper limb; 20 is a thick-wall column section; 21 is an H-shaped or I-shaped steel beam; 22 is a connecting plate; 23-lower limb; 24-beam end reinforced steel plate; 25-bolt; 27-a sound insulation board; 28-building wall panels; 29-a sound insulation steel beam; 30-web holes; 31-a tie rod hole; 32-corrosion and fire resistant layer; 33-U-shaped connectors; 34-L-shaped connectors; 35-a lower support plate; 36-a stiffening plate; 37-precast slab; 38-stressed steel bars on the upper part of the composite floor slab; 39-upper connecting plate.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only a simplified description for the convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The fabricated steel frame-steel plate shear wall structure system is formed by combining columns, steel beams, steel plate shear walls and floor slabs, wherein the columns are rigidly connected with the steel beams to form a frame, the steel plate shear walls are arranged at proper positions to enhance the overall rigidity of the structure, and the floor slabs are laid on the top surfaces of the steel beams and are reliably connected with the steel beams and the steel columns.
Fig. 1 and 2 are plan and elevation views of an assembled steel structure provided in an embodiment of the present invention. As shown in the drawings, the present invention provides an assembled steel structure, comprising: the steel plate shear wall comprises columns (1, 2, 3 and 4), steel beams 5, a steel plate shear wall 6 and a floor slab 7;
the steel column of the structure is formed by mixing a rectangular column and a special-shaped column, and is shown in figure 3.
The rectangular column of the structure is a rectangular steel pipe formed by directly welding or welding after bending steel plates.
The special-shaped column of the structure is formed by welding and combining part or all of the sections of a rectangular pipe, a U-shaped section, an L-shaped section, an S-shaped section, an H-shaped section and a straight steel plate into an L-shaped, T-shaped and cross-shaped multi-chamber cavity section.
This structure adopts beam column rigid connection, and the node area of post and girder steel connection includes: an upper column limb (19), a lower column limb (23) and a nodal region thick-walled column section (20), as shown in figure 5; wherein the thick-wall column section (20) can be spliced in a factory according to the section form of the original lower column limb (23) and is connected with the upper column limb (19) and the lower column limb (23) in the factory, and the columns (1, 2, 3 and 4) can also select a whole steel pipe, and the thick-wall column section is characterized in that the thickness of the partial pipe wall in the beam column node area is larger than that of other parts; the section of the steel beam (21) is H-shaped or I-shaped and is connected with the thick-wall column section (20) through a connecting plate (22). As shown in fig. 5, the column is welded to the flange of the steel beam (21) at the construction site; the webs of the columns and the steel beams (21) are connected by adopting a connecting plate (22), and the connecting plate (22) can be welded to the thick-wall column section (20) in a factory and is connected by welding or bolts in the field; the outer surfaces of the upper and lower flanges at the root of the steel beam (21) are pasted with a beam end reinforcing steel plate (24); the length of the thick-wall column section (20) exceeds the upper and lower surfaces of the steel beam by more than 150 mm.
After the beam column is installed on site, concrete can be poured from top to bottom or from bottom to top in the column cavity, the concrete is ordinary concrete, high-strength concrete, lightweight aggregate concrete, self-compacting concrete or micro-expansion concrete, and the pouring is more convenient to implement and the pouring quality is very easy to ensure because no transverse partition plate is arranged in the column cavity.
The buckling-restrained steel plate shear wall 6 adopted in the embodiment comprises an embedded steel plate 8, a buckling-restrained cover plate 9, a connecting plate 10 and a countersunk head split bolt assembly 11 for connecting the steel plate shear wall and the concrete cover plate, as shown in fig. 4; 2 buckling-restrained cover plates 9 are respectively arranged at two sides of the embedded steel plate 8, and 3 are reliably connected through a countersunk head split bolt assembly 11; the buckling-restrained steel plate shear wall 6 is reliably connected with the H-shaped or I-shaped steel beam 21 through the connecting plate 10.
The embedded steel plate 8 of this structure is a steel plate that has certain thickness, and this steel plate can be a monoblock steel plate, also can be by the concatenation of polylith steel sheet and form, and steel sheet surface is the trompil 12 of interval at every.
The countersunk head split bolt assembly 11 of the structure comprises a split screw 13 with threads on both ends, a nut 14 and a gasket 15.
The buckling-restrained cover plate 9 of the structure is a cement-based precast slab, can improve the stability of the embedded steel plate 8, is arranged on two sides of the embedded steel plate 8, bolt holes 16 and counter bores 17 are formed in the surface of the buckling-restrained cover plate 9 at regular intervals, the size of each bolt hole 16 is slightly larger than that of each counter-pull screw 13, the size of each counter bore 17 is slightly larger than that of each nut 14, and the arrangement positions of the bolt holes 16 and the counter bores 17 correspond to the positions of the open holes 12 of the embedded steel plate 8 one by one.
The connecting plate 10 of the steel plate shear wall is a Z-shaped, S-shaped, Y-shaped or 7-shaped transition connecting piece with one end connected with the embedded steel plate 8 and the other end connected with the flange of the H-shaped or I-shaped steel beam 21, and the connecting plate 10 and the embedded steel plate 8 are connected by adopting welding connection or bolts 25 as shown in FIG. 6; when the H-shaped or I-shaped steel beam 21 is deformed downwards by the vertical load transmitted by the upper structure, the vertical load is released by the connecting plate 10 through the deformation of the connecting plate, the vertical load borne by the steel plate shear wall 6 is effectively reduced, and the vertical load is mainly borne by the H-shaped or I-shaped steel beam 21.
The steel beam of the structure is a sound insulation steel beam, and the sound insulation steel beam is connected with the building wall body by adopting a sound insulation construction method, as shown in fig. 7;
the steel beam is a sound insulation steel beam 29, and the sound insulation steel beam 29 specifically comprises an H-shaped or I-shaped steel beam 21, a sound insulation plate 27 and a split bolt assembly 11; the sound insulation plates 27 are respectively arranged on two sides of a web plate of the H-shaped or I-shaped steel beam 21, and the H-shaped or I-shaped steel beam 21 and the sound insulation plates 27 are reliably connected through the split bolt assemblies 11; the surface of the H-shaped or I-shaped steel beam 21 is coated with an anti-corrosion and fireproof coating 32, holes (web plate holes 30) are formed in web plates at certain intervals, the sound insulation plate 27 is provided with bolt holes 31 at certain intervals, countersunk holes are formed in the surface of one side of the mounting nut, and the arrangement positions of the bolt holes 31 of the sound insulation material correspond to the positions of the web plate holes 30 of the H-shaped or I-shaped steel beam 21 one by one; the bolt hole 31 and the web hole 30 are larger than the pull screw 13, and the counter bore is larger than the nut 14.
The sound insulation steel beams 29 are connected with the building wall boards 28 through U-shaped connecting pieces 33 or L-shaped connecting pieces 34, elastic sealing materials are filled in gaps between the sound insulation steel beams 29 and the building wall boards 28, anti-crack mortar is smeared to be smooth after anti-crack fibers are pasted on joint areas of the H-shaped or I-shaped steel beams 21, the cement-based sound insulation materials 27 and the building wall boards 28, and the beam width is not larger than the thickness of the building wall;
the floor slab 7 of the embodiment is a laminated floor slab, and the H-shaped or i-shaped steel beam 21 and the floor slab 7 are reliably connected through the shear-resistant studs 18.
When the floor used the coincide floor, place the coincide floor in girder steel top surface, failed direct support on the roof beam when the coincide floor, the unable normal support of coincide floor in column casing handing-over department, consequently this structure has provided a connected mode, as shown in fig. 8: determining the bottom elevation of the prefabricated 37 plate and marking according to a design drawing; blanking an upper connecting plate 39 and a lower supporting plate 35 according to the length of the side surface of the steel column, wherein the upper connecting plate 39 is required to be smaller than the lower supporting plate 35 by more than 50mm in width for the convenience of installation of the prefabricated plate 37, and simultaneously blanking a stiffening plate 36; welding the upper connecting plate 39 and the lower supporting plate 35 at corresponding elevations according to design requirements, and welding the stiffening plate 36 between the upper connecting plate 39 and the lower supporting plate 35; during the construction of the floor slab, the precast slabs 37 are placed on the top surfaces of the lower supporting plates 35 welded on the steel columns, then the stressed steel bars 38 of the laminated floor slab are bound and welded with the upper connecting plates 39, and finally concrete is poured to form the integral laminated floor slab; the above-mentioned node scheme of connecting the composite floor slab and the steel column can also cancel the upper connecting plate 39, and weld the stressed steel bar 38 of the composite floor slab directly with the column.
Claims (10)
1. The utility model provides an assembled steel frame-steel sheet shear wall structure, is formed by post, girder steel, steel sheet shear wall and floor assembly, its characterized in that:
the column is connected with the steel beam to form a frame, the steel plate shear wall is arranged at a proper position of the structure, and the floor slab is laid on the top surface of the steel beam and is reliably connected with the steel beam and the column;
at least one part of the column is a special-shaped column which is an L-shaped, T-shaped, cross-shaped or Z-shaped column with a multi-chamber cavity and is formed by combining part or all of six basic section units, namely a rectangular tube section, a U-shaped section, an L-shaped section, an S-shaped section, an H-shaped section and a straight steel plate section, and a shared side wall is arranged between adjacent cavities of the special-shaped column; the steel beam is an H-shaped steel beam, an I-shaped steel beam or a sound insulation steel beam; in the beam-column joint area of the column and the steel beam, the inner cavity of the column is not provided with a diaphragm plate, and the outer surface of the column is not provided with an external reinforcing ring plate; the steel plate shear wall is connected with the steel beam through a connecting plate; the floor slab adopts a laminated floor slab or a steel bar truss floor bearing plate.
2. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: concrete is poured into the cavity, and the concrete is common concrete, high-strength concrete, lightweight aggregate concrete, self-compacting concrete or micro-expansive concrete.
3. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: the steel plate shear wall can adopt a buckling-restrained steel plate shear wall, a stiffened steel plate shear wall, a non-stiffened steel plate shear wall and a slotted steel plate shear wall.
4. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: the sound insulation steel beam specifically comprises an H-shaped or I-shaped steel beam, a sound insulation plate and a split bolt assembly; the sound insulation plates are respectively arranged on two sides of a web plate of the H-shaped or I-shaped steel beam, and the H-shaped or I-shaped steel beam and the sound insulation plates are reliably connected through the split bolt assemblies.
5. The fabricated steel frame-steel plate shear wall structure of claim 4, wherein: the sound insulation steel beam is characterized in that holes are formed in web plates of an H-shaped or I-shaped steel beam of the sound insulation steel beam at regular intervals, namely web plate holes, bolt holes are formed in the sound insulation plates at regular intervals, countersunk holes are formed in the surface of one side of the mounting nut, and the arrangement positions of the bolt holes and the countersunk holes of the sound insulation material correspond to the positions of the web plate holes of the H-shaped or I-shaped steel beam one by one; the sizes of the bolt holes and the web plate holes are larger than the size of the split screw, and the size of the counter sink is larger than the size of the nut.
6. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: the column is connected with the beam-column joint area of the steel beam, the wall thickness of the column is larger than that of the column outside the beam-column joint area, the flanges and the webs of the steel beam are connected with the pipe wall of the column joint area, and the outer surface roots of the upper flange and the lower flange of the steel beam are attached to the beam end reinforcing steel plate.
7. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: the connecting plate is a Z-shaped, S-shaped, Y-shaped or 7-shaped transition connecting piece, one end of the connecting piece is connected with the steel plate shear wall, and the other end of the connecting piece is connected with the steel beam.
8. The fabricated steel frame-steel plate shear wall structure of claim 7, wherein: the steel plate shear wall and the connecting plate connected with the steel beam are connected with the steel beam in a welding mode, and the connecting plate is connected with the steel plate shear wall in a welding mode or in a bolt mode.
9. The fabricated steel frame-steel plate shear wall structure of claim 1, wherein: the laminated floor slab comprises precast slabs, upper reinforcing steel bars and a cast-in-place concrete layer; the connecting joint at the joint of the composite floor slab and the column comprises an upper connecting plate, a stiffening plate and a lower supporting plate; the upper connecting plate is a steel plate with the top surface corresponding to the lower surface of the upper reinforcing steel bar of the composite floor slab, welded to the side of the column and horizontally placed; the lower supporting plate is a steel plate with the top surface corresponding to the lower surface of the composite floor slab, welded to the column side and horizontally placed; the stiffening plate is a vertically placed steel plate which is arranged between the upper connecting plate and the lower supporting plate at intervals, and is respectively connected with the upper connecting plate, the column and the lower supporting plate; the prefabricated slab of the laminated floor slab is supported on the lower supporting plate; the upper reinforcing steel bar of the composite floor slab is connected with the upper connecting plate; and the cast-in-place concrete layer is poured on the top surface of the prefabricated plate.
10. The fabricated steel frame-steel plate shear wall structure of claim 9, wherein: the upper reinforcing steel bar of the composite floor slab is directly connected with the column without an upper connecting plate.
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| CN202010720221.1A CN111851791A (en) | 2020-07-24 | 2020-07-24 | Assembled steel frame-steel sheet shear force wall structure |
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| CN202010720221.1A CN111851791A (en) | 2020-07-24 | 2020-07-24 | Assembled steel frame-steel sheet shear force wall structure |
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| CN112627415A (en) * | 2021-01-29 | 2021-04-09 | 河南聚誉帆工程技术咨询有限公司 | Assembled integral floor connecting device |
| WO2023231827A1 (en) * | 2022-06-02 | 2023-12-07 | 刘旭 | Facade-frame corrugated wall building |
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