CN110306673B - A multi-storey large space building structure - Google Patents
A multi-storey large space building structure Download PDFInfo
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- CN110306673B CN110306673B CN201910593663.1A CN201910593663A CN110306673B CN 110306673 B CN110306673 B CN 110306673B CN 201910593663 A CN201910593663 A CN 201910593663A CN 110306673 B CN110306673 B CN 110306673B
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- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
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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
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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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
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/344—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
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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
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/344—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
- E04B1/3441—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts with articulated bar-shaped elements
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
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Abstract
一种多层大空间建筑结构，适用于对绝对跨度需求不高的多层大空间建筑，包括复合的建筑结构主体，所述建筑结构主体包括：墙体，所述墙体为混凝土侧向受力平衡墙体，用于提供竖向建筑空间的同时承受所述建筑结构主体的水平力；多层无梁楼板，位于所述墙体之间且与所述墙体连接；以及多个支撑柱，每个所述支撑柱均为自由分布型摇摆柱，用于承担垂直方向的竖向力，每个所述支撑柱的两端分别与所述无梁楼板铰接。本发明提高了空间的使用效率，减小了对空间通透性的视觉影响，解决了建筑的水平受力问题。
A multi-storey large-space building structure, which is suitable for multi-storey large-space buildings with low absolute span requirements, includes a composite building structure main body, and the building structure main body includes: a wall body, and the wall body is a concrete lateral receiving structure. a force balance wall for providing vertical building space while bearing the horizontal force of the building structure main body; a multi-layer beamless floor slab between and connected to the wall; and a plurality of support columns , each of the support columns is a freely distributed rocking column, used to bear the vertical force in the vertical direction, and the two ends of each of the support columns are respectively hinged with the beamless floor. The invention improves the use efficiency of the space, reduces the visual impact on the permeability of the space, and solves the problem of the horizontal force of the building.
Description
Technical Field
The invention relates to a building structure, in particular to a multi-layer large-space building structure.
Background
For a multi-storey large-space building, a column-free large-span structure and a beam column framework structure are generally adopted in the prior art. The adoption of a large-span structure requires a larger structural beam height, and particularly in a multi-storey building, the space utilization efficiency is not high; the frame structure is limited by the regular column net, the selectable space modes of the building are limited, and the size of the column can limit the space penetrating effect under the requirement of the column on lateral force resistance.
Disclosure of Invention
The present invention aims at solving the above-mentioned problems in the prior art and provides a multi-storey large space building structure.
In order to achieve the above object, the present invention provides a multi-storey large space building structure, which is suitable for a multi-storey large space building with low absolute span requirement, wherein the multi-storey large space building structure comprises a composite building structure main body, and the building structure main body comprises:
the wall body is a concrete lateral stress balance wall body and is used for providing a vertical building space and simultaneously bearing the horizontal force of the building structure main body;
the multi-layer beamless floor slab is positioned between the walls and connected with the walls; and
the support columns are freely distributed swing columns and are used for bearing vertical force in the vertical direction, and two ends of each support column are hinged to the beamless floor respectively.
In the above multi-storey large-space building structure, the support columns are freely arranged according to the requirement of the building space, and the length-thin ratio of the support columns can reduce the visual influence on the permeability of the building space.
In the multilayer large-space building structure, each layer of the beamless floor slab is perpendicular to the wall, and the hinge joint of the beamless floor slab and the support column is provided with the anti-cutting steel plate.
In the above multi-storey large-space building structure, each layer of the beamless floor slab is provided with two layers of bidirectional steel bars for transmitting horizontal load, and the tensile stress of the concrete of each layer of the beamless floor slab is less than or equal to zero.
The multilayer large space building structure is characterized in that the axial compression ratio of the support columns is 0.5-1.0, and the slenderness ratio of the support columns is less than or equal to 150.
The multi-storey large space building structure comprises supporting columns, wherein the axial compression ratio of the supporting columns is 0.8.
In the above multi-storey large space building structure, the thickness of the wall body is 200-700 mm, and at least two layers of bidirectional reinforcing steel bars are arranged in the wall body.
In the aforementioned multi-storey large-space building structure, the supporting column is a concrete structural column, a hinge joint between the supporting column and the girderless floor slab is a concrete hinge joint, the concrete hinge joint includes a plurality of longitudinal stressed steel bars and column stirrups, the longitudinal stressed steel bars are arranged in a cross manner with the hinge joint as a center, one end of each longitudinal stressed steel bar is connected with a reinforcement of the supporting column, the other end of each longitudinal stressed steel bar is connected with an anti-shear steel plate of the girderless floor slab, the column stirrups are arranged in parallel between the longitudinal stressed steel bars below the hinge joint, and a distance from the hinge joint to the supporting column is half of a diameter of the supporting column.
Foretell big space building structure of multilayer, wherein, the support column is the steel construction post, the support column with the pin joint of no beam floor is the steel hinge, the steel hinge is including outer joint, spherical festival and connecting portion, outer joint sets up in the no beam floor, the spherical festival is installed in the outer joint, be provided with on the spherical festival be used for with the connecting portion that the support column is connected, the height of connecting portion equals half of the diameter of support column.
In the above multi-storey large-space building structure, the wall body of the elevator hall of the building structure main body is a cylindrical structure.
The invention has the technical effects that:
in a multi-storey large-space building, the structure height of a composite adaptive multi-storey large-space building structure system of 'free distribution type swinging columns + concrete lateral stress balance walls' is obviously reduced compared with that of a large-span system in the prior art, and the use efficiency of the space is improved; compared with a beam column frame structure in the prior art, the swing column can be freely arranged according to space requirements, and the visual influence on the permeability of the space is reduced due to the ultra-large slenderness ratio of the swing column. The concrete wall provides the horizontal stress problem of having solved the building when vertical building space, and the nimble overall arrangement that gives the building when free thin post solves the gravity problem brings probably, and the complex of two kinds of different systems has the rationality of structure, provides the system guarantee for the innovation of building mode, has important realistic value.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic view of a building structure according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a concrete hinge according to an embodiment of the present invention;
FIG. 3 is a schematic view of a steel hinge according to an embodiment of the present invention.
Wherein the reference numerals
1 wall body
2 beamless floor
3 support column
4 hinge point
5 ground base
6 anti-punching steel plate
7 longitudinal stress steel bar
8 column stirrup
9 outer joint
10 ball joint
11 connecting part
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
referring to fig. 1, fig. 1 is a schematic view of a main body of a building structure according to an embodiment of the present invention. The invention relates to a multi-layer large-space building structure which is suitable for multi-layer large-space buildings with low absolute span requirements, and comprises an adaptive building structure main body compounded by a free distribution type swinging column and a concrete lateral stress balance wall body 1, wherein the building structure main body is built on a foundation 5 and comprises: the wall body 1 is a concrete lateral stress balance wall body 1 and is used for providing a vertical building space and bearing the horizontal force of the building structure main body; the multi-layer beamless floor slabs 2 are positioned between the wall bodies 1 and connected with the wall bodies 1, and reinforcing steel bars for transmitting horizontal load are arranged in each layer of the beamless floor slabs 2; and the supporting columns 3 are freely distributed swing columns and are used for bearing vertical force (constant load and live load) in the vertical direction, and two ends of each supporting column 3 are hinged to the beamless floor slab 2 respectively. The support columns 3 can be freely arranged according to the requirement of the building space, and the slenderness ratio of the support columns 3 can reduce the visual influence on the permeability of the building space. The axial compression ratio of the support column 3 is 0.5-1.0, preferably 0.8, the slenderness ratio of the support column 3 is less than or equal to 150, and the horizontal load (earthquake load and wind load) of the whole structure is not borne. When the lateral movement of the whole structure is ensured to be below 1/1000, the structure is judged to be a structure without lateral movement, and the support column 3 carries out stable analysis according to the Euler formula. And the effective transmission of the beamless floor 2 is ensured, and the index control mainly ensures that the beamless floor 2 is not pulled.
In this embodiment, each layer of the girderless floor 2 is perpendicular to the wall 1, and an anti-shear steel plate 6 is arranged at a hinge point between each layer of the girderless floor 2 and the support column 3. And double layers of bidirectional steel bars are arranged in each layer of the beamless floor 2 and used for transmitting horizontal load, and the tensile stress of the concrete of each layer of the beamless floor 2 is less than or equal to zero. The beamless floor 2 can be a general floor, is provided with double layers of bidirectional steel bars, plays a role in transmitting horizontal load, and controls the tensile stress of the beamless floor 2 to meet the requirement of a standard limit.
The wall body 1 is preferably arranged into a cylindrical structure and bears horizontal loads (earthquake loads and wind loads) of the whole structure. The wall body 1 can be 200-700 mm thick, preferably 300-400 mm thick according to the height of the building, at least two layers of bidirectional reinforcing steel bars are arranged in the wall body 1, the reinforcing steel bar arrangement of the wall body 1 is required to execute the current relevant specification requirements of the state, and the top and bottom end structure does not need to be processed, so that the wall body is a conventional shear wall structure system structure. The wall 1 of the building-lift-cabin of the building construction body is preferably of a tubular construction.
Referring to fig. 2, fig. 2 is a schematic diagram of concrete hinge according to an embodiment of the present invention. The support column 3 of this embodiment is a concrete structure column, the hinge joint 4 between the support column 3 and the girderless floor 2 is a concrete hinge joint, the concrete hinge joint includes a plurality of longitudinal stressed steel bars 7 and column stirrups 8, the longitudinal stressed steel bars 7 are arranged in a cross manner with the hinge joint 4 as a center, one end of the longitudinal stressed steel bar 7 is connected with the reinforcement of the support column 3, the other end of the longitudinal stressed steel bar 7 is connected with the anti-cutting steel plate 6 of the girderless floor 2, the column stirrups 8 are arranged in parallel between the longitudinal stressed steel bars 7 below the hinge joint 4, the distance between the column stirrups 8 is preferably 50mm, and the distance between the hinge joint 4 and the support column 3 is half of the diameter of the support column 3. During construction, the position of the steel bar can be fixed as shown in the figure, and the steel bar is ensured not to be displaced and deviated. The upper end node steel bar and the lower end node steel bar ensure anchoring and a concrete floor slab, and the tensile length LA is met; pouring concrete, wherein the grade of the concrete is not lower than C30; and repeating the steps until the hinged connection of the support columns 3 and the beamless floor 2 is completed. When the structure is used in earthquake, the concrete support column 3 and the upper and lower hinged nodes of the beamless floor slab 2 rotate, so that deformation cracks can be generated, and the structure can be repaired in time after the earthquake.
Referring to fig. 3, fig. 3 is a schematic view of a steel hinge according to an embodiment of the present invention. This embodiment the support column 3 is the steel construction post, support column 3 with the pin joint 4 of no beam floor 2 is the steel articulated, the steel articulated including outer joint 9, spherical joint 10 and connecting portion 11, outer joint 9 sets up in no beam floor 2, spherical joint 10 is installed in outer joint 9, be provided with on the spherical joint 10 be used for with the connecting portion 11 that support column 3 is connected, connecting portion 11 highly equals the half of the diameter of support column 3. During construction, the steel structure supporting column 3 can be firstly processed, the spherical joint 10 at the end of the steel structure column is processed, the outer joint 9 of the spherical joint 10 is processed, and the gap distance between the spherical joint 10 and the outer joint 9 is ensured to be 1 mm; the outer joint 9 can be installed in a two-section mode by buckling left and right, and the spherical joint 10 and the outer joint 9 are preassembled; and after the upper end and the lower end of the support column 3 are respectively positioned and installed with the corresponding spherical joints 10 on site through the connecting parts 11, the concrete beamless floor 2 is constructed and poured. The connecting point of the support column 3 and the beamless floor slab 2 can be ensured to be in a hinged connection mode, the support column 3 can be ensured not to absorb horizontal force during earthquake action, the rotation of the connecting node of the support column 3 is ensured, and the bending moment is not resisted.
The invention can determine the main body of the building structure according to the building function requirements, the structural seismic intensity and the number of layers, and selects a multi-layer large-space building structure system of 'freely distributed swinging columns + concrete lateral shear walls'; the structural parameters of the building structure main body are calculated through simulation of structural calculation software, the calculation software only needs a finite element analysis module, the support columns 3 are simulated by adopting rod units, the wall body 1 and the girderless floor slab 2 are simulated by adopting shell units, namely a three-dimensional solid model of the structure is established, the support columns 3 are defined as the rod units, and the wall body 1 is defined as the shell units; the support columns 3 are freely distributed according to the requirement of a building space, the slenderness ratio of the support columns 3 is less than or equal to 150, the thickness of the wall body 1 can be 200-400 mm, at least two layers of bidirectional reinforcing steel bar reinforcements are arranged in the wall body 1, and the wall body 1 of the elevator room of the building structure main body is set to be a cylindrical structure; the building structure main body meets the condition that the limit value of the displacement angle between the elastic layers of the whole structure is smaller than 1/800, the axial compression ratio of the supporting columns 3 is 0.5-1.0, the axial compression ratio is controlled to be less than 1.0, preferably 0.8, the earthquake-resistant section checking calculation of the wall body 1 meets SR/Gamma RE, and the concrete tensile stress of the beamless floor slab 2 is guaranteed to be smaller than or equal to zero. And the reinforcement ratio of the reinforcement of the beamless floor 2 is increased by 0.05 according to the calculation result and the requirement of the building earthquake-resistant design specification. The analysis and calculation results of other components are guaranteed to be within the current national standard requirements.
The invention adopts a multi-layer large-space building structure system of 'freely distributed swinging support columns 3+ concrete lateral stress balance wall 1', and is derived from space limitation of model selection of the multi-layer large-space building structure. The supporting columns 3 in this building system are arranged in a freely random manner, and are designed as sway columns that bear only vertical forces in the system, since their thin column cross-section cannot bear sufficient lateral stiffness. Since the support column 3 does not carry any horizontal forces, its slenderness ratio can far exceed that of a column in a conventional structure. The supporting columns 3 which are randomly arranged can form an adaptive arrangement scheme according to different requirements, and the permeability of a large space is ensured, so that an innovative building space intention is created.
The space formed by the concrete wall body 1 with balanced lateral stress can provide vertical members for vertical traffic and pipe wells in the building system. As an integral component of the composite structure, the concrete wall 1 becomes the primary lateral force resistant system. The concrete wall body 1 can be internally provided with profile steel embedded columns and steel rib embedded beams, and the anti-seismic ductility performance of the lateral force resisting system under medium and large earthquakes is guaranteed according to the design of the medium-earthquake unconformable performance target, so that the sufficient lateral resistance is provided for the integral structure, and the support column 3 is guaranteed to be a lateral-movement-free gravity column. In order to ensure the effective lateral support of the concrete wall 1 to all the support columns 3, the beamless floor slab 2 is designed into an integral rigid force transfer system, and the horizontal force transfer path of the floor is systematically designed, so that the integrity and the force transfer reliability of the structure under medium and large earthquakes are ensured.
The arrangement mode of the support columns 3 as the distributed swing columns is determined according to the size of vertical (constant load + live load) load and the using space of a building, the axial pressure ratio can be 0.5-1.0, and the optimal value is 0.8. The slenderness ratio is controlled below 150, and the horizontal load (earthquake load + wind load) of the whole structure is not borne. The concrete lateral shear wall body 1 is preferably arranged in a cylindrical structure. And the horizontal load (earthquake load + wind load) of the whole structure is borne. The wall body 1 can be 200-700 mm thick according to the height of the building, the steel bar configuration of the wall body 1 is required to execute the current relevant standard requirements of the state, at least two layers of bidirectional steel bars are arranged, the top and bottom end structure of the wall body does not need to be processed, and the wall body is a conventional shear wall structure system structure. The structure of the beamless floor slab 2 is a normal floor slab, and the beamless floor slab can be provided with double layers of bidirectional reinforcing steel bars, plays a role in transmitting horizontal load and controls the tensile stress of the floor slab concrete to be less than zero.
The freely distributed swinging support column 3+ concrete lateral stress balance wall body 1 structure is suitable for multi-layer large space buildings with low absolute span requirements, relatively free column layout can be realized according to space requirements, and visual influence on space permeability is reduced due to the ultrahigh slenderness ratio of the columns. All posts in the building are swing support columns 3 with upper and lower ends hinged, and beams are not arranged between the swing support columns and the floor slab, so that the net height of the building is reduced while the smooth building appearance of the building is ensured. Meanwhile, the shear wall structure of the core barrel of the building elevator room can be fully utilized, namely, the part of the wall body 1 is arranged in the building elevator room as much as possible, and other places are reserved for building functions, so that the utilization efficiency of the building can be effectively improved; when the lateral wall of the elevator room of the building is of a cylindrical structure, the lateral stiffness can be increased.
According to the invention, the free thin swinging column bears vertical force, and the concrete wall body bears a two-part stress model of horizontal force, so that on one hand, the large-scale structural height of a large-span building is avoided, on the other hand, an adaptive space mode is formed by the free thin column according to the building requirement, the space is more transparent due to the ultra-large slenderness ratio, and the problems of large structural height and low space utilization efficiency in a multi-layer large-space large-span building are effectively solved; in addition, the invention overcomes the problems of limited section and insufficient space permeability of the column under the requirement of lateral force resistance of the column in the multi-layer large space frame building; and the problems that the space mode is limited due to the regular arrangement of the column nets in the multi-layer large-space frame building. The concrete wall solves the horizontal stress problem of the building while providing a vertical building space, the free thin column solves the gravity problem and brings possibility to the flexible layout of the building, the composition of two different systems has structural rationality, the system guarantee is provided for the innovation of a building mode, and the concrete wall has important practical value for the space innovation of the building.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a big space building structure of multilayer, is applicable to the big space building of multilayer that the demand for absolute span is not high, its characterized in that, including compound building structure main part, building structure main part includes:
the wall body is a concrete lateral stress balance wall body and is used for providing a vertical building space and simultaneously bearing horizontal loads of all structures of the building structure main body, and at least two layers of bidirectional reinforcing steel bars are arranged in the wall body;
the multi-layer beamless floor slabs are positioned between the walls and connected with the walls, each layer of the beamless floor slabs are arranged perpendicular to the walls and are an integral rigid force transfer system, double-layer bidirectional steel bars are arranged in each layer of the beamless floor slabs and are used for transferring horizontal load, and the tensile stress of the concrete of each layer of the beamless floor slabs is less than or equal to zero; and
each support column is a freely distributed swing column and is used for bearing vertical force in the vertical direction, two ends of each support column are hinged with the beamless floor respectively, and an anti-cutting steel plate is arranged at the hinged point of each layer of the beamless floor and the support column;
the support columns are freely arranged according to the requirement of the building space, the axial pressure ratio of the support columns is 0.5-1.0, and the slenderness ratio of the support columns is less than or equal to 150, so that the visual influence on the permeability of the building space is reduced;
the concrete hinge comprises a plurality of longitudinal stressed steel bars and a column stirrup, the longitudinal stressed steel bars are arranged in a crossed mode by taking the hinge point as a center, one end of each longitudinal stressed steel bar is connected with a reinforcement of the support column, the other end of each longitudinal stressed steel bar is connected with an anti-cutting steel plate of the beamless floor, the column stirrup is arranged between the longitudinal stressed steel bars below the hinge point in parallel, and the distance between the hinge point and the support column is half of the diameter of the support column;
or, the support column is the steel construction post, the support column with the pin joint of no roof beam floor is the steel hinge, the steel hinge includes outer joint, spherical festival and connecting portion, outer joint sets up in the no roof beam floor, the spherical festival is installed in the outer joint, be provided with on the spherical festival be used for with the connecting portion that the support column is connected, the height of connecting portion equals half of the diameter of support column.
2. The multi-storey large space building structure of claim 1 wherein the support columns have an axial compression ratio of 0.8.
3. The multi-storey large space building structure according to claim 1 or 2, wherein the thickness of the wall is 200-700 mm.
4. The multistory large-space building structure according to claim 1 or 2, wherein the wall body of the elevator shaft of the building structure body is a cylindrical structure.
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| CN1294331C (en) * | 2003-12-05 | 2007-01-10 | 胡战波 | In-site prestressed concrete sandwiched composite beamless floor structure system and construction method |
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| CN101215856B (en) * | 2007-12-27 | 2010-08-25 | 河北理工大学 | Steel tube concrete column-plate hinged joint node |
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