CN110565808B - Building structure prefabricated with ultra-narrow flange steel and building with building structure - Google Patents
Building structure prefabricated with ultra-narrow flange steel and building with building structure Download PDFInfo
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- CN110565808B CN110565808B CN201910929566.5A CN201910929566A CN110565808B CN 110565808 B CN110565808 B CN 110565808B CN 201910929566 A CN201910929566 A CN 201910929566A CN 110565808 B CN110565808 B CN 110565808B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 161
- 239000010959 steel Substances 0.000 title claims abstract description 161
- 238000010276 construction Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 8
- 238000009417 prefabrication Methods 0.000 claims description 7
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 abstract description 7
- 239000011819 refractory material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 13
- 239000011159 matrix material Substances 0.000 description 11
- 230000007547 defect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 108700041286 delta Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
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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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7629—Details of the mechanical connection of the insulation to the wall
-
- 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
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/762—Exterior insulation of exterior walls
- E04B1/7637—Anchoring of separate elements through the lining to the wall
-
- 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
- E04B1/941—Building elements specially adapted therefor
- E04B1/943—Building elements specially adapted therefor elongated
- E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
Abstract
The invention discloses a building structure prefabricated with ultra-narrow flange steel and a building with the same, wherein the building structure comprises: the steel structure column consists of two groups of ultra-narrow flange steels which are mutually and vertically connected; the steel structure beam consists of a group of ultra-narrow flange steels; the boundary prefabricated structure is used for partially prefabricating steel structural columns or steel structural beams; the column side precast slab can be arranged on a concrete floor slab and is used for being connected with a boundary precast structure; wherein, one end of the boundary prefabricated structure and the adjacent column side prefabricated plate have the same first edge line and second edge line on two sides of the section width of the two, and the first edge line and the second edge line are parallel to each other; the invention can effectively solve the cold bridge problem, and reasonably utilizes the structural arrangement of refractory materials and heat-insulating materials, thereby improving the utilization rate between the structures.
Description
Technical Field
The invention relates to the technical field of building structures and assembly system engineering, in particular to a building structure prefabricated with ultra-narrow flange steel and a building with the same.
Background
In the prior art, in building structures and assembly systems, the constructed steel structures and buildings have the following technical problems; firstly, the steel structure column and the steel structure beam in the building assembly structure have large specification and size, and when an outer wall is constructed or prefabricated, the steel structure column and the steel structure beam protrude out of the outer wall, the cold bridge phenomenon of the building under the structure is prominent, and especially the building structure at the flange and web of the section steel adopted by the steel structure column and the steel structure beam is obvious; thirdly, the flanges and webs of the section steel occupy more effective building area, and the effective area of the building is relatively reduced after the wall surface is built; further, the actual use amounts of heat insulating materials, fireproof materials, prefabricated materials and heat insulating materials in the building construction process are increased, and the corresponding construction work amount is also increased, which is a main reason why the construction cost is high.
Based on the above, a building structure for solving the above problems is not proposed in the prior art, so that the functionality of the building structure in the prior art is not perfect enough, the fusion is low, and the cost of construction engineering cannot be effectively reduced.
Disclosure of Invention
The invention aims to solve the problems in the building structure and the assembly system in the prior art, and provides a building structure prefabricated with ultra-narrow flange steel and a building with the same.
In order to solve the technical problems, the technical scheme of the invention is as follows:
in a first aspect, the present invention provides a construction structure prefabricated with ultra-narrow flange steel, including: the steel structure column consists of two groups of ultra-narrow flange steels which are mutually and vertically connected; the steel structure beam consists of a group of ultra-narrow flange steels; a plurality of construction units each formed by connecting a plurality of the steel structural columns and a plurality of the steel structural beams to each other; a first side plane located between the two sets of steel structural columns in one pre-arrangement direction; a second side plane located between two sets of steel structural columns in another prearranged direction, the second side plane being perpendicular to the first side plane;
wherein any one of the building units comprises at least: a concrete floor slab mountable on the steel structural beam, the concrete floor slab being perpendicular to the first and second side planes, respectively; a boundary prefabrication structure to prefabricate partially in the steel structural column or the steel structural beam; column side prefabricated panels mountable to said concrete floor slab and adapted to be connected to said boundary prefabricated construction;
wherein, one end of any one group of the boundary prefabricated structures and the adjacent column side prefabricated plate have the same first edge line and second edge line on two sides of the section width of the two, and the first edge line and the second edge line are parallel to each other;
wherein the flange width of the ultra-narrow flange steel is less than or equal to 100mm;
wherein, the boundary prefabricated structure is at least integrated with one or more of a heat preservation material layer, a heat insulation material layer or a fireproof material layer.
Specifically, the boundary preform structure includes:
and the first boundary prefabricated structure is prefabricated between the two flanges of the steel structure beam and is distributed on two sides of the waist plate.
Specifically, the column side prefabricated panel includes: a first column side prefabricated panel disposed on the second side plane; a concave groove which is formed along the width direction of the first column side precast slab;
wherein the concrete floor slab and the first boundary prefabricated structure are assembled in the concave groove;
wherein, the first boundary prefabricated structure and the first column side prefabricated plate form a first side line and a second side line at the two sides of the width of the first column side prefabricated plate in the height direction of the first column side prefabricated plate;
the first edge line and the second edge line are parallel.
Specifically, the steel structure column is constructed by two groups of ultra-narrow flange steels which are mutually perpendicular to each other:
a first ultra-narrow flange steel column structure comprising: a first narrow flange steel; one end of the first waist plate is fixedly connected to the waist plate of the first narrow flange steel; the other end of the first waist plate is fixedly connected with the first flange.
Specifically, the boundary prefabricated structure further includes: and a second boundary prefabrication structure, part of which is prefabricated between two flanges of the first narrow flange steel, and the other part of which is prefabricated at two sides of the first waist panel.
Specifically, the column side prefabricated panel further includes: a second column side prefabricated panel disposed on the first plane; a third column side prefabricated panel, the second boundary prefabricated structure connecting the second column side prefabricated panel and the third column side prefabricated panel;
wherein the second column side prefabricated panel and the third column side prefabricated panel are perpendicular to each other.
Specifically, the end part of the second boundary prefabricated structure connected with the second column side prefabricated plate forms a third side line and a fourth side line on two sides of the cross section width of the second boundary prefabricated structure and the second column side prefabricated plate;
the end part of the second boundary prefabricated structure connected with the third column side prefabricated plate forms a fifth side line and a sixth side line on two sides of the cross section width of the second boundary prefabricated structure and the third column side prefabricated plate;
wherein the third edge line and the fourth edge line are parallel to each other;
wherein the fifth edge line and the sixth edge line are parallel to each other;
wherein the third side line and the fifth side line are perpendicular to each other.
Preferably, the first waist plate is fixedly connected to the center of the waist plate of the first narrow flange steel; or alternatively
The first waist plate is fixedly connected to one end of the waist plate of the first narrow flange steel and is adjacent to a flange of one end of the first narrow flange steel.
Preferably, the column side prefabricated panel may be divided into a plurality of preset panels;
wherein, the post side prefabricated plate can be divided into: at least two groups of first connecting prefabricated plates, wherein two groups of adjacent boundary prefabricated structures are respectively connected in one building unit; at least one group of second connecting prefabricated panels for prefabricating between the two groups of first connecting prefabricated panels;
wherein, in one of the construction units, the second connection prefabricated panels are disposed at a height lower than the heights of the two groups of first connection prefabricated panels connected thereto.
In another aspect, the present invention also provides a building, comprising: the building structure is prefabricated with ultra-narrow flange steel; an outer wall heat insulation layer;
when the building structure prefabricated with the ultra-narrow flange steel is arranged at the periphery or the corner of the house, the outer wall heat insulation layer can be arranged on the building structure prefabricated with the ultra-narrow flange steel along the periphery or the corner of the house.
Further, the method for constructing the first ultra-narrow flange steel column structure by the steel structure column through two groups of ultra-narrow flange steels which are connected perpendicularly comprises the following steps:
s101, taking a basic type narrow flange steel structure as a main stress member to obtain first data;
the first data are geometric values of a narrow flange steel structure, and a section characteristic value is calculated;
s102, applying horizontal deformation to the basic type of the narrow flange steel structure based on the first data and the corresponding section characteristic values to obtain a set of variation trend values;
the set is at least four groups of layer defect representative values calculated through addition;
wherein the defect value is used for representing the layer height of each group of defect layers;
s103, obtaining the geometric deformation taking the basic type of the narrow flange steel structure as a main stress member through a first-order buckling mode based on the set of the change trend values, and calculating through a formula delta 0=e0sin (pi x/L);
wherein, the e0 component is initially deformed at the key point, the distance between x and the end of the component is L the total length of the component;
s104, obtaining the basic size of the ultra-narrow flange steel column structure T1 according to geometric deformation, wherein the flange width range of the ultra-narrow flange steel is 120mm;
s105, setting a flange width range offline, and establishing a rigidity matrix for the basic size of the ultra-narrow flange steel column structure T1 based on and with the optimal value of the ultra-narrow flange width of the ultra-narrow flange steel equal to or less than 120mm for static balance calculation;
and S106, obtaining a stress calculation result of the ultra-narrow flange steel column structure T1 through nonlinear analysis by using a stiffness matrix, and determining the lower limit of the range based on the result, wherein the lower limit of the range is 75mm.
The invention has the following beneficial effects:
firstly, the boundary prefabricated structure and the column side prefabricated plates all contain fireproof materials, have the effects of heat preservation and heat insulation, and can effectively reduce the problems of link cold bridges; and the refractory materials and the heat-insulating materials are reasonably arranged by utilizing the structure, so that the utilization rate between the structures is improved.
Secondly, the boundary prefabricated structure is equivalent to being hidden in the structure, so that the extra occupied building area is avoided, the indoor use space of the building is improved, meanwhile, the utilization rate of heat preservation, heat insulation and fireproof prefabricated plate materials is also improved, the engineering cost can be reduced, and the performance of the structure is more stable.
Thirdly, the connection of boundary prefabricated structure, post side prefabricated plate is more continuous, and is neat even, and the surface is level and smooth between each wall body, has further increased the usable floor area of building, and is elegant appearance more.
Fourth, the steps of the method for constructing the first ultra-narrow flange steel column structure from two sets of mutually perpendicular connected ultra-narrow flange steels, which make the structure applicable to engineering practice, further illustrate the advantages and generalizability of the structure in application.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a schematic illustration of a building structure of the present invention prefabricated with ultra-narrow flange steel;
FIG. 2 is a detailed view of the construction of the prefabricated ultra-narrow flange steel construction of the present invention;
FIG. 3 is a schematic view of an embodiment of a first boundary preform structure according to the present invention;
FIG. 4 is a schematic view of an embodiment of a second boundary preform structure according to the present invention;
FIG. 5 is a schematic view of another embodiment of a second boundary preform structure according to the present invention;
FIG. 6 is a schematic view showing an embodiment of the first and second connecting prefabricated panels according to the present invention;
FIG. 7 is an analysis table of the present invention based on narrow flange steel section characteristic values;
FIG. 8 is a schematic diagram of a set of trend values according to the present invention;
FIG. 9 is a diagram showing a set of trend values according to another embodiment of the present invention;
FIG. 10 is a schematic representation of the static balance calculation of the stiffness matrix of the present invention;
reference numerals in the drawings denote:
steel structural columns 100, steel structural beams 200, construction units 300, concrete floors 400, first side planes 1, second side planes 2;
a boundary prefabricated structure 10, a column side prefabricated panel 20;
a first boundary preform structure 11, a first column side preform slab 21, and a recess groove 220;
a first side line A1 and a second side line A2;
a first ultra-narrow flange steel column structure T1, a first narrow flange steel 110;
a first waist plate 111, a first flange 112;
a second boundary preform structure 12;
a second column side prefabricated panel 22, a third column side prefabricated panel 23;
a third line A3 and a fourth line A4;
a fifth edge line A5 and a sixth edge line A6;
the first connection prefabricated panel 201, the second connection prefabricated panel 202 and the external wall insulation layer 500;
layer height (h 1, h2, h3, h 4)
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention relates to a building structure prefabricated with ultra-narrow flange steel and a building with the same, and the technical effect to be realized is to perfect the functionality of the building structure, improve the fusion and effectively reduce the cost of construction engineering; in order to achieve the above technical effects, it is necessary to ensure that the following three aspects are achieved, namely, the effect of the cold bridge effect at the positions of the steel structural columns and the steel structural beams is effectively reduced, and particularly, the whole structure of the flanges and the web is provided with a protruding recess, which is the position where the cold bridge phenomenon is most easy to occur. The method comprises the steps of carrying out a first treatment on the surface of the Secondly, the effective building area is increased, so that the heat insulation material, the fireproof material, the prefabricated material and the heat insulation material can be effectively utilized; thirdly, optimizing the building structure and increasing the effective building area.
Based on the above, the present invention is implemented by first providing a building structure prefabricated with ultra-narrow flange steel according to the present invention, referring to fig. 1, the structure includes: the steel structure column 100 consists of two groups of ultra-narrow flange steels which are mutually and vertically connected; a steel structural beam 200 composed of a set of ultra-narrow flange steels;
a plurality of construction units 300 formed by connecting a plurality of steel structural columns 100 and a plurality of steel structural beams 200 to each other; the plurality of construction units 300 corresponds to the layout of the overall building structure, and the ultra-narrow flange steel is an improved section steel proposed in the present technical solution, and uses the narrow flange steel as a basic model of the structure.
A first lateral plane 1, which is located between two sets of steel structural columns 100 in one pre-arrangement direction; a second side plane 2 located between the two sets of steel structural columns 100 in the other prearranged direction, and the second side plane 2 is perpendicular to the first side plane 1; it should be understood that the first side plane 1 and the second side plane 2 are virtual planes that are helpful for understanding the present solution, and that one prearranged direction and the other prearranged direction correspond to the lateral and longitudinal directions shown in fig. 1.
Wherein any one of the plurality of building blocks 300 comprises at least: a concrete floor 400 which can be installed on the steel structural beam 200, and the concrete floor 400 is perpendicular to the first side plane 1 and the second side plane 2, respectively; specifically, there is provided an installation of the concrete floor 400.
A boundary prefabricated structure 10 to be partially prefabricated on the steel structural column 100 or the steel structural beam 200;
column side precast slabs 20 mountable on concrete floor slabs 400 and adapted to be connected to the boundary precast structure 10; wherein one end of any one set of boundary prefabricated structures 10 and its adjacent column side prefabricated panel 20 have the same first and second edge lines at both sides of the cross-sectional width of both, and the first and second edge lines are parallel to each other.
The boundary pre-fabricated structure 10 is at least integrated with one or more of a heat insulating material layer, a heat insulating material layer or a fireproof material layer, and is arranged so that the building structure does not need to be painted or pre-fabricated with a fireproof layer, and can realize heat insulating and heat insulating effects, while the boundary pre-fabricated structure 10 is used for partially pre-fabricating the steel structure column 100 or the steel structure beam 200, which corresponds to the position between the flange and the web filled with the steel structure, so that the influence of the cold bridge effect which is most likely to occur at the positions of the steel structure column 100 and the steel structure 200 is greatly reduced, and particularly the boundary pre-fabricated structure 10 can be made into a plate shape; it will be appreciated that, after the above-described structure is installed and prefabricated, it is also possible to ensure that one end of any one set of boundary prefabricated structure 10 and its adjacent column side prefabricated panel 20 have the same first edge line and second edge line on both sides of the cross-sectional width of both, and the first edge line and the second edge line are parallel to each other, which is equivalent to the thickness of the boundary prefabricated structure 10 and the thickness of the column side prefabricated panel 20, so that the whole of the structure is not concave or convex, the influence of the cold bridge effect is further reduced, and the main occurrence position of the cold bridge effect is in fact that the building structure forms a bulge or a recess, and obviously, such a design manner is not realized in the prior art. Further, in order to achieve the above technical object, in one embodiment, the flange width of the ultra-narrow flange steel is 100mm or less, and based on this, the structure does not need to increase the thickness of the column side prefabricated panel 20, thereby saving more building area. Obviously, through the technical scheme, the invention realizes the technical effects, and specifically comprises the following steps:
the boundary prefabrication structure 10 can be prefabricated between a web plate and a flange of the narrow flange steel in a pouring connection mode; the arrangement is equivalent to directly acting the boundary prefabricated structure 10 made of heat preservation and heat insulation materials on the structure of the narrow flange steel which is most outstanding in cold bridge generation, namely between the web plate and the flange, and the arrangement has the effects that the boundary prefabricated structure 10 is equivalent to being hidden in the building structure, the additional occupied building area is avoided, the use space in a building room is improved, meanwhile, the utilization rate of heat preservation, heat insulation and fire prevention prefabricated plate materials is also improved, the engineering cost can be reduced, and the performance of the structure is more stable.
The above structure does not form a protrusion or a recess, so that the connection between the boundary prefabricated structure 10 and the column side prefabricated plate 20 is more continuous, neat and uniform, the surfaces among the walls are flat, the use area of the building is further increased, and the structure is more attractive and elegant, therefore, the technical scheme remarkably improves the material utilization rate, and the construction cost is easier to reduce.
In one specific embodiment, referring to fig. 2 and 3, the boundary preform structure 10 includes: a first boundary prefabrication structure 11, which is prefabricated between two flanges of the steel structural beam 200 and distributed on both sides of the waist plate, is provided in this example as an embodiment at a specific steel structural beam 200.
Further, referring to fig. 2 in this embodiment, the column-side prefabricated panel 20 includes: a first column side prefabricated panel 21 disposed on the second side plane 2; a recess groove 220 opened in the width direction of the first column side prefabricated panel 21;
wherein the concrete floor slab 400 and the first boundary preform structure 11 are assembled in the recess groove 220; wherein the first boundary prefabricated structure 11 and the first column side prefabricated panel 21 form a first side line A1 and a second side line A2 on both sides of the width of the first column side prefabricated panel 21 in the height direction thereof; the first side line A1 and the second side line A2 are parallel, and obviously, the concave groove 220 is also arranged to make the whole structure flat, no bulge or concave is generated, the influence of the cold bridge effect is reduced, and the prefabricated installation is also convenient.
In addition, in the position of the steel structural column 100, the present invention proposes two embodiments to correspond to the position of the building corner, specifically including:
referring to fig. 4 and 5, the steel structure column 100 is constructed of two sets of ultra-narrow flange steels that are vertically connected to each other: a first ultra-narrow flange steel column structure T1 comprising: a first narrow flange steel 110; a first waist plate 111, one end of which is fixedly connected to the waist plate of the first narrow flange steel 110; the first flange 112, the other end of the first waist plate 111 is fixedly connected to the first flange 112.
Referring to fig. 4 and 5, the boundary prefabricated structure 10 further includes: and a second boundary prefabrication structure 12, part of which is prefabricated between two flanges of the first narrow flange steel 110, and the other part of which is prefabricated at both sides of the first waist panel 111.
Referring to fig. 3, the column side prefabricated panel 20 further includes: a second column side prefabricated panel 22 disposed on the first plane 1; a third column side prefabricated panel 23, the second boundary prefabricated construction 12 connecting the second column side prefabricated panel 22 and the third column side prefabricated panel 23; wherein the second column side prefabricated panel 22 and the third column side prefabricated panel 23 are perpendicular to each other.
Referring to fig. 3, the end portion of the second boundary prefabricated structure 12 connected to the second column side prefabricated panel 22 forms a third line A3 and a fourth line A4 on both sides of the cross-sectional width of both; the end of the second boundary preform structure 12 connected to the third column-side preform plate 23 forms a fifth edge line A5 and a sixth edge line A6 on both sides of the cross-sectional width of both;
wherein the third side line A3 and the fourth side line A4 are parallel to each other; wherein the fifth side line A5 and the sixth side line A6 are parallel to each other; wherein the third side line A3 and the fifth side line A5 are perpendicular to each other.
The difference between the two embodiments shown in fig. 4 and 5 is that the first waist plate 111 is fixedly connected to the center of the waist plate of the first narrow flange steel 110; or the first waist plate 111 is fixedly coupled to one end of the waist plate of the first narrow flange steel 110 and is adjacent to the flange of one end of the first narrow flange steel 110.
Obviously, other similar structural variations exist under the guiding ideas of the present technical solution.
In one embodiment, referring to FIG. 3, the column-side prefabricated panel 20 may be divided into a plurality of presets; wherein, the column side prefabricated panel 20 may be divided into: at least two groups of first connecting prefabricated panels 201, respectively connecting two groups of adjacent boundary prefabricated structures 10 in one construction unit; at least one set of second connecting prefabricated panels 202 for being prefabricated between the two sets of first connecting prefabricated panels 202; wherein, in one construction unit, the second connection prefabricated panels 202 are disposed at a lower level than the two sets of first connection prefabricated panels 201 connected thereto. The main purpose of such a design is that the column side prefabricated panel 20 may be divided into a plurality of parts for convenience of construction, so that the prefabricated installation is facilitated.
In a second aspect of the invention, a building is provided, comprising: prefabricating a building structure with ultra-narrow flange steel; an outer wall insulation layer 500;
when the building structure prefabricated with the ultra-narrow flange steel is arranged at the periphery or the corner of the house, the external wall insulation layer 500 can be installed on the building structure prefabricated with the ultra-narrow flange steel along the periphery or the corner of the house.
In addition, in the present technical solution, the reference to the ultra-narrow flange steel specifically refers to the steel structural column 100 or the steel structural beam 200, where the steel structural column 100 is a deformation after two sets of narrow flange steels are connected, it can be understood that one set of narrow flange steels lacks a straight flange, and one end lacking a flange is connected to a waist plate of the other set of narrow flange steels, and the manner of design is to adapt to a corner structure or a beam crossing position, so that the structure can be applied to engineering practice, and the method for constructing the first ultra-narrow flange steel column structure T1 by the steel structural column 100 by two sets of ultra-narrow flange steels connected perpendicularly to each other includes the following steps:
s101, taking a basic type narrow flange steel structure as a main stress member to obtain first data;
the first data are geometric values of a narrow flange steel structure, and a section characteristic value is calculated; in one embodiment, please refer to the following table or fig. 7;
asy: the effective shearing area of the unit local coordinate system in the y-axis direction;
asz: the effective shearing area of the unit local coordinate system in the z-axis direction;
ixx: torsional moment of inertia for the x-axis of the local coordinate system of the cell;
iyy: inertial distance of y axis of unit local coordinate system;
izz: inertial distance of z-axis of local coordinate system of unit;
cyp: along the direction of the cell local coordinate system plus the y axis, the distance from the central axis to the edge fiber in the cell cross section;
cym: along the direction of the local coordinate system-y axis of the unit, the distance from the central axis of the unit section to the edge fiber;
czp: along the direction of the +z axis of the local coordinate system of the unit, the distance from the central axis of the cross section of the unit to the edge fiber;
czm: along the direction of the z axis of the local coordinate system of the unit, the distance from the central axis of the cross section of the unit to the edge fiber;
qyb: shear coefficients along the z-axis direction of the unit local coordinate system;
qzb: shear coefficients along the y-axis direction of the unit local coordinate system;
peri: O: perimeter of outer contour of cross section;
peri: I: the inner perimeter of the box or tube section;
cent: y: the distance from the leftmost side of the cross section to the centroid;
cent: z: the distance from the lowermost end of the cross section to the centroid;
y1, z1: y, z coordinates of the upper left most edge point of the cross section;
y2, z2: y, z coordinates of the upper right most edge point of the cross section;
y3, z3: y, z coordinates of the lower right most edge point of the cross section;
y4, z4: y, z coordinates of the lower left most edge point of the cross section;
s102, applying horizontal deformation to the basic type of the narrow flange steel structure based on the first data and the corresponding section characteristic values to obtain a set of variation trend values;
the set is at least four groups of layer defect representative values calculated through addition;
wherein the defect value is used for representing the layer height of each group of defect layers;
in a specific embodiment, please refer to fig. 8 and 9;
the set of the change trend values is expressed as delta 0, four groups of defects are divided into delta 1, 2, 3 and 4, the calculation formula is delta 0= delta 1 plus delta 2 plus delta 3 plus delta 4, and the layer heights are h1, h2, h3 and h4.
S103, obtaining the geometric deformation taking the basic type of the narrow flange steel structure as a main stress member through a first-order buckling mode based on the set of the change trend values, and calculating through a formula delta 0=e0sin (pi x/L); wherein, the e0 component is initially deformed at the important point, the distance x from the end of the component, the total length of the component L is shown in fig. 10;
s104, obtaining the basic size of the ultra-narrow flange steel column structure T1 according to geometric deformation, wherein the flange width range of the ultra-narrow flange steel is 120mm; the maximum flange width is determined to be 120mm according to the total thickness of the wall minus the thickness of the fireproof materials on two sides;
s105, setting a flange width range offline, and establishing a rigidity matrix for the basic size of the ultra-narrow flange steel column structure T1 based on and with the optimal value of the ultra-narrow flange width of the ultra-narrow flange steel equal to or less than 120mm for static balance calculation;
wherein, the static balance is obtained by the following calculation formula, and the concrete table is shown as follows:
| name of the name | Calculation formula |
| First calculation type | [k]e＝∫v[B]T[D][B]dV； |
| Second calculation type | [K]＝[K]1+[K]2+[K]3+…+[K]n； |
| Third calculation type | ([KE]+[KG]){u}＝{P}； |
| (Code) | Meaning of |
| [k]e | Cell stiffness matrix |
| [B] | Strain matrix |
| [D] | Elastic matrix |
| [K] | Integral stiffness matrix |
| [KE] | Elastic stiffness matrix |
| [KG] | Geometric stiffness matrix |
| {u} | Node displacement vector |
| {P} | Node load vector |
And S106, obtaining a stress calculation result of the ultra-narrow flange steel column structure T1 through nonlinear analysis by using a stiffness matrix, and determining the lower limit of the range based on the result. In a specific embodiment, the minimum width is calculated as phib=phib' to be 75mm. Wherein, the beam integral stability coefficient of phi b is calculated as: phib' =1.07-0.282/phib.
The invention has the following technical advantages:
firstly, the boundary prefabricated structure 10 and the column side prefabricated plates 20 are made of fireproof materials, have the effects of heat preservation and heat insulation, and can effectively reduce the problems of link cold bridges; and the refractory materials and the heat-insulating materials are reasonably arranged by utilizing the structure, so that the utilization rate between the structures is improved.
Second, the boundary prefabricated structure 10 is equivalent to being hidden in the structure, so that the extra occupied building area is avoided, the indoor use space of the building is improved, meanwhile, the utilization rate of heat preservation, heat insulation and fireproof prefabricated plate materials is also improved, the engineering cost can be reduced, and the performance of the structure is more stable.
Third, the connection of the boundary prefabricated structure 10 and the column side prefabricated plates 20 is more continuous, neat and uniform, and the surfaces among the walls are flat, so that the service area of the building is further increased, and the building is more attractive and elegant.
Fourth, making the structure applicable to engineering practice is achieved by the steps of the method by which the steel structural column 100 constructs the first ultra-narrow flange steel column structure T1 from two sets of mutually perpendicular joined ultra-narrow flange steels, further illustrating the advantages and generalizability of the structure in application.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (7)
1. A building structure made of ultra-narrow flange steel, comprising:
the steel structure column (100) consists of two groups of ultra-narrow flange steels which are mutually and vertically connected;
a steel structural beam (200) comprised of a set of ultra-narrow flange steels;
a plurality of construction units (300) each formed by connecting a plurality of the steel structural columns (100) and a plurality of the steel structural beams (200) to each other;
a first lateral plane (1) located between the two groups of steel structural columns (100) in one pre-arrangement direction;
a second lateral plane (2) located between two groups of steel structural columns (100) in the other pre-arrangement direction, the second lateral plane (2) being perpendicular to the first lateral plane (1);
wherein any one of the construction units (300) comprises at least:
a concrete floor (400) mounted on the steel structural beam (200), and the concrete floor (400) is perpendicular to the first side plane (1) and the second side plane (2), respectively;
-a boundary prefabricated structure (10) partially prefabricated on said steel structural column (100) or said steel structural beam (200);
-column side prefabricated panels (20) mounted on said concrete floor slab (400) and adapted to be connected to said boundary prefabricated structure (10);
wherein one end of any one group of the boundary prefabricated structures (10) and the adjacent column side prefabricated panel (20) have the same first edge line and second edge line on both sides of the cross-sectional width of the two, and the first edge line and the second edge line are parallel to each other;
wherein, the width of the flange of the ultra-narrow flange steel ranges from 75mm to 120mm;
wherein the boundary prefabricated structure (10) is at least integrated with one or more of a heat preservation material layer, a heat insulation material layer or a fireproof material layer;
the boundary preform structure (10) comprises:
a first boundary prefabrication structure (11) prefabricated in the two flanges of the steel structural beam (200)
The waist plates are distributed on two sides of the waist plate;
the steel structure column (100) is constructed by two groups of ultra-narrow flange steels which are mutually perpendicular to each other:
a first ultra-narrow flange steel column structure (T1) comprising:
a first narrow flange steel (110);
a first waist plate (111) one end of which is fixedly connected to the waist plate of the first narrow flange steel (110);
the other end of the first waist plate (111) is fixedly connected with the first flange (112);
the boundary preform structure (10) further comprises:
and a second boundary prefabrication structure (12) which is partially prefabricated between two flanges of the first narrow flange steel (110) and the other part of which is prefabricated at two sides of the first waist panel (111).
2. The building structure prefabricated with ultra-narrow flange steel according to claim 1, wherein the column side prefabricated panel (20) comprises:
a first column-side prefabricated panel (21) disposed on the second side plane (2);
a recessed groove (220) which is formed along the width direction of the first column side prefabricated plate (21);
wherein the concrete floor slab (400) and the first boundary preform structure (11) are fitted within the recess groove (220);
wherein the first boundary prefabricated structure (11) and the first column side prefabricated panel (21) form a first side line (A1) and a second side line (A2) on both sides of the width of the first column side prefabricated panel (21) in the height direction thereof;
the first edge (A1) and the second edge (A2) are parallel.
3. The building structure prefabricated with ultra-narrow flange steel according to claim 1, wherein the column side prefabricated panel (20) further comprises:
a second column-side prefabricated panel (22) disposed on the first side plane (1);
a third column side prefabricated panel (23), the second boundary prefabricated structure (12) connecting the second column side prefabricated panel (22) and the third column side prefabricated panel (23);
wherein the second column side prefabricated panel (22) and the third column side prefabricated panel (23) are perpendicular to each other.
4. A building structure prefabricated with ultra-narrow flange steel according to claim 3, characterized in that the end of the second boundary prefabricated structure (12) connected to the second column side prefabricated panel (22) forms a third edge line (A3) and a fourth edge line (A4) on both sides of the cross-sectional width of both;
the second boundary prefabricated structure (12) is connected with the third column side prefabricated plate (23) at two ends
A fifth side line (A5) and a sixth side line (A6) are formed on two sides of the cross section width of the first side line;
wherein the third edge (A3) and the fourth edge (A4) are parallel to each other;
wherein the fifth edge (A5) and the sixth edge (A6) are parallel to each other;
wherein the third edge line (A3) and the fifth edge line (A5) are perpendicular to each other.
5. The building structure prefabricated with ultra-narrow flange steel according to claim 1, characterized in that the first waist panel (111) is fixedly connected to the center of the waist panel of the first narrow flange steel (110); or alternatively
The first waist plate (111) is fixedly connected to one end of the waist plate of the first narrow flange steel (110) and is adjacent to the flange of one end of the first narrow flange steel (110).
6. The building structure prefabricated with ultra-narrow flange steel according to claim 1, wherein the column side prefabricated panel (20) is dividable into a plurality of presets;
wherein the column side prefabricated panel (20) is dividable into:
at least two groups of first connecting prefabricated panels (201) distributed within one of said building units
Two groups of adjacent boundary prefabricated structures (10) are respectively connected;
at least one set of second connecting prefabricated panels (202) for prefabricating between two sets of first connecting prefabricated panels (201);
wherein, in one of the construction units, the second connection prefabricated panels (202) are arranged at a height lower than the heights of the two groups of first connection prefabricated panels (201) connected thereto.
7. A building, comprising:
a building structure prefabricated with ultra-narrow flange steel as claimed in any one of claims 1 to 6; an outer wall insulation layer (500);
when the building structure prefabricated with the ultra-narrow flange steel is arranged at the periphery or a corner of a house, the outer wall heat insulation layer (500) is arranged on the building structure prefabricated with the ultra-narrow flange steel along the periphery or the corner of the house.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204753817U (en) * | 2015-06-24 | 2015-11-11 | 宿迁学院 | Steel structure beam column joint |
| CN110206147A (en) * | 2019-06-19 | 2019-09-06 | 中国航空规划设计研究总院有限公司 | The more high-rise assembling type steel structure systems and construction method of additional exterior wall horizontal rigidity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7497054B2 (en) * | 2001-06-06 | 2009-03-03 | Nippon Steel Corporation | Column-and-beam join structure |
| US6739099B2 (en) * | 2001-06-06 | 2004-05-25 | Nippon Steel Corporation | Column-and-beam join structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204753817U (en) * | 2015-06-24 | 2015-11-11 | 宿迁学院 | Steel structure beam column joint |
| CN110206147A (en) * | 2019-06-19 | 2019-09-06 | 中国航空规划设计研究总院有限公司 | The more high-rise assembling type steel structure systems and construction method of additional exterior wall horizontal rigidity |
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