CN113931298A - Low-multilayer assembled light steel and light concrete structural system and construction method thereof - Google Patents
Low-multilayer assembled light steel and light concrete structural system and construction method thereof Download PDFInfo
- Publication number
- CN113931298A CN113931298A CN202111392678.5A CN202111392678A CN113931298A CN 113931298 A CN113931298 A CN 113931298A CN 202111392678 A CN202111392678 A CN 202111392678A CN 113931298 A CN113931298 A CN 113931298A
- Authority
- CN
- China
- Prior art keywords
- prefabricated
- light
- steel
- wall
- light steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 342
- 239000010959 steel Substances 0.000 title claims abstract description 342
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000004904 shortening Methods 0.000 abstract 1
- 238000009417 prefabrication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- 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
-
- 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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
The invention discloses a low-multilayer assembled light steel light concrete structural system and a construction method thereof, and relates to the technical field of assembled light steel light concrete structures. In order to solve the problem of complicated construction, the system comprises a prefabricated wall body, a prefabricated light steel light concrete door and window opening, a light steel beam and a prefabricated floor slab. The prefabricated wall bodies comprise a prefabricated light steel light concrete straight-line-shaped wall body, a prefabricated light steel light concrete L-shaped wall body, a prefabricated light steel light concrete T-shaped wall body, a prefabricated light steel light concrete cross-shaped wall body and a prefabricated light steel light concrete door and window opening wall. The construction method is a matched construction method of a prefabricated wall body and a prefabricated floor slab in a low multi-layer assembled light steel light concrete structural system, the prefabricated floor slab comprises a beam slab type floor slab and a slab type floor slab, and multiple groups of thin-wall light steel beams are arranged in parallel. The invention improves the convenience of construction, thereby greatly shortening the construction period of the building structure.
Description
Technical Field
The invention relates to the technical field of fabricated light steel and light concrete structures, in particular to a low-rise fabricated light steel and light concrete structural system and a construction method thereof.
Background
The light steel and light concrete structure is a structural system which takes thin-wall light steel and light concrete as main materials and combines light steel prefabrication assembly and light concrete cast-in-place. The thin-wall light steel and the light concrete work cooperatively, and the earthquake resistance is excellent; the thin-wall light steel is wrapped by the light concrete, so that the fire resistance is good; the solid wall has no hollow sense, good heat preservation, heat insulation and sound insulation performance and wide application prospect in the field of village and town buildings in China.
However, in the existing construction technology, because the light steel and light concrete structure needs on-site formwork erecting and pouring wet construction, the construction process is complicated, the construction period is long, a large amount of manpower is consumed, and the requirement on the on-site construction technology is higher.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a low-multilayer assembled light steel light concrete structural system and a construction method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a low multi-layer assembly type light steel and light concrete structure system comprises a prefabricated wall body, a prefabricated light steel and light concrete door and window opening, a light steel beam and a prefabricated floor slab, and is characterized in that the prefabricated wall body comprises a prefabricated light steel and light concrete linear wall body, a prefabricated light steel and light concrete L-shaped wall body, a prefabricated light steel and light concrete T-shaped wall body, a prefabricated light steel and light concrete cross-shaped wall body and a prefabricated light steel and light concrete door and window opening wall; the prefabricated light steel light concrete straight-line-shaped wall body, the prefabricated light steel light concrete L-shaped wall body, the prefabricated light steel light concrete T-shaped wall body, the prefabricated light steel light concrete cross-shaped wall body, the prefabricated light steel light concrete door and window opening wall, the prefabricated light steel light concrete door and window opening, the light steel beam and the prefabricated floor slab are mutually fixed by adopting pre-buried connecting boxes.
Preferably: the prefabricated light steel light concrete straight-line-shaped wall body, the prefabricated light steel light concrete L-shaped wall body, the prefabricated light steel light concrete T-shaped wall body and the prefabricated light steel light concrete cross-shaped wall body are all produced by light steel keels matched with the prefabricated light steel light concrete cross-shaped wall bodies in shape and light concrete poured between the light steel keels by utilizing standard modulus or custom modulus.
Further: the light steel keel comprises vertical light steel upright columns, a top guide beam and a bottom guide beam which are matched with the light concrete straight-line-shaped wall body to be prefabricated with a light steel light concrete L-shaped wall body, a prefabricated light steel light concrete T-shaped wall body and a prefabricated light steel light concrete cross-shaped wall body in shape, and the vertical light steel upright columns, the top guide beam and the bottom guide beam are fixed with one another through pre-buried connecting boxes, and the adjacent vertical light steel upright columns are fixedly connected through horizontal steel braces.
On the basis of the scheme: the embedded connection box comprises a connection box A, a connection box B and a connection box C, the connection box A is located at the corner of the light steel keel and is fixedly connected with the light steel keel through bolts or screws, the connection box B is located at the upper end part and the lower end part of the vertical light steel upright in the light steel keel and is fixedly connected with the light steel keel through bolts or screws, and the connection box C is located in the middle of the vertical light steel upright in the light steel keel and is fixedly connected with the light steel keel through bolts or screws.
The better scheme in the scheme is as follows: the prefabricated light steel light concrete door and window opening wall is composed of prefabricated wall bodies, prefabricated light steel light concrete connecting beams and a prefabricated door and window opening steel frame, wherein the prefabricated wall bodies are positioned on two sides, the prefabricated light steel light concrete connecting beams are positioned at the top and the bottom, and the prefabricated door and window opening steel frame is positioned in the middle.
As a further scheme of the invention: the prefabricated light steel and light concrete connecting beam consists of a light steel keel and light concrete, and the prefabricated door and window opening steel frame consists of a pair of section steel upright posts and a pair of section steel girders which are mutually and vertically fixed.
A building method of a low multi-layer assembly type light steel and light concrete structural system is a matched building method of a prefabricated wall and a prefabricated floor slab in the low multi-layer assembly type light steel and light concrete structural system, wherein the prefabricated floor slab comprises a beam slab type floor slab and a slab type floor slab.
As a preferable aspect of the present invention: the beam slab type floor slab mainly comprises thin-wall light steel beams, thin-wall light steel transverse supports, connecting angle pieces, floor slab horizontal steel bars and prefabricated light floor slabs, wherein the thin-wall light steel beams are arranged in parallel, two adjacent thin-wall light steel beams are fixedly connected through the floor slab horizontal steel bars, two groups of adjacent thin-wall light steel beams at the most end parts are fixedly connected through the thin-wall light steel transverse supports, and the connecting positions of the thin-wall light steel beams and the thin-wall light steel transverse supports are fixed through the connecting angle pieces. The construction method of the prefabricated wall and the beam slab type floor slab specifically comprises the following steps:
a1: fixing the thin-wall light steel beam and the prefabricated wall body, firstly placing a steel connecting plate in a wall seam between the prefabricated wall bodies, and fixing the steel connecting plate and the steel connecting plate by penetrating a connecting box A through bolts;
a2: placing the horizontal steel bars between the thin-wall light steel beams, and fixing two ends of each horizontal steel bar on the thin-wall light steel beams at two sides through bolts;
a3: the thin-wall light steel beams are transversely supported between the two groups of thin-wall light steel beams at the end parts and are fixed at the right-angle joint by connecting angle pieces through bolts or screws;
a4: laying prefabricated light floor slabs on the structure in A3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
Meanwhile, the plate type floor slab is a prefabricated light plate type floor slab, reserved holes are formed in the positions, located at the connecting positions of the two ends of the prefabricated light plate type floor slab and the embedded connecting boxes in the prefabricated wall body, and the construction method of the prefabricated wall body and the plate type floor slab specifically comprises the following steps:
b1: after the prefabricated wall body of the next layer is installed in place, the prefabricated light plate type floor slabs are conveyed to the installation positions among the prefabricated wall bodies by hoisting or jacking, and then the connecting bolts are placed in the pre-buried connecting boxes of the reserved pore channels of the plate type floor slabs and the prefabricated wall body of the next layer in advance;
b2: b1, hoisting the upper layer of prefabricated wall, and fixing the connecting bolts through the pre-embedded mounting boxes in the upper layer of prefabricated wall, so that the upper and lower prefabricated walls are connected with the prefabricated light plate type floor;
b3: and finally, the embedded connection box is filled with light concrete or mortar to realize sealing.
As a more preferable scheme of the invention: the prefabricated floor slab comprises beam slab floors and slab floors, the beam slab floors mainly comprise thin-wall light steel beams, crossed steel belt supports, horizontal steel bars of the floors and the prefabricated light floor, multiple groups of the thin-wall light steel beams are arranged in parallel, two adjacent thin-wall light steel beams are fixedly connected through the horizontal steel bars of the floors, two groups of the thin-wall light steel beams which are positioned at the most end parts are adjacent and are fixedly connected through the crossed steel belt supports, the joints of the thin-wall light steel beams and the crossed steel belt supports are fixed through bolts or screws, and the construction method of the prefabricated wall body and the beam slab floors specifically comprises the following steps:
a1: fixing the thin-wall light steel beam with the prefabricated wall; firstly, placing a steel connecting plate in a wall gap between prefabricated walls, and fixing the steel connecting plate with a bolt penetrating through a connecting box A;
a2: placing the horizontal steel bars between the thin-wall light steel beams, and fixing two ends of each horizontal steel bar on the thin-wall light steel beams at two sides through bolts;
a3: two crossed steel belt supports in one group are crossed and then are arranged between two groups of thin-wall light steel beams at the end parts, and two ends of the two crossed steel belt supports and the thin-wall light steel beams are fixed through bolts or screws;
a4: laying prefabricated light floor slabs on the structure in A3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
The invention has the beneficial effects that:
1. this low multilayer assembled lightweight steel light concrete structural system, through to prefabricated lightweight steel light concrete straight type wall body, prefabricated lightweight steel light concrete L type wall body, prefabricated lightweight steel light concrete T type wall body, the prefabrication of prefabricated lightweight steel light concrete cross wall body, satisfy the plane among the building structure, the right angle, the wall structure demand of trident angle and quadridentate angle, and through the prefabrication to prefabricated assembly lightweight steel light concrete door and window entrance to a cave wall, satisfy the door in the building construction, the window headspace, the prefabricated wall body that utilizes multiple shape function can realize building structure's modularization and build, and through pre-buried junction box cooperation bolt as standard mounting between the prefabricated wall body, realize prefabricated wall body's connection, building structure's building, construction's convenience has been improved, thereby to a great extent has shortened building structure's construction period.
2. The low multi-layer assembly type light steel light concrete structure system adopts the light steel keel as a strength supporting framework and light concrete as filling to form a prefabricated wall with a solid surface, and the framework-filling type building structure ensures the bending resistance and the seismic strength and improves the stability of structural connection.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural view of a prefabricated light steel and light concrete straight-line wall body according to the invention;
FIG. 2 is a schematic structural view of the prefabricated light steel and light concrete L-shaped wall body of the invention;
FIG. 3 is a schematic structural view of a prefabricated light steel and light concrete T-shaped wall body of the invention;
FIG. 4 is a schematic structural view of a prefabricated light steel and light concrete cross-shaped wall body according to the present invention;
FIG. 5 is a schematic view of the prefabricated light steel lightweight concrete door and window opening wall structure of the present invention;
FIG. 6 is a schematic view of the structure of the light steel beam of the present invention;
FIG. 7 is a schematic view of a precast floor slab structure according to the present invention;
FIG. 8 is a schematic view of the structure of the prefabricated wall according to the present invention;
FIG. 9 is a schematic structural view of the light gauge steel of the present invention;
FIG. 10 is a schematic structural view of a junction box A of the present invention;
FIG. 11 is a schematic structural view of a junction box B of the present invention;
FIG. 12 is a schematic view of the construction of a junction box C according to the present invention;
FIG. 13 is a view of a prefabricated opening wall according to the present invention;
fig. 14 is a schematic view of a prefabricated doorway wall structure of the present invention;
FIG. 15 is a schematic structural view of the precast lightweight steel and concrete coupling beam of the present invention;
FIG. 16 is a first structural view of a beam slab floor slab according to the present invention;
FIG. 17 is a second structural view of a beam slab floor of the present invention;
FIG. 18 is a view of the construction of the connection gusset of the present invention;
FIG. 19 is a connecting structure diagram of the prefabricated wall and the thin-walled light steel beam according to the present invention;
fig. 20 is a connecting structure of the slab floor slab and the prefabricated wall according to the invention.
In the figure: 1-prefabricated light steel light concrete straight-line-shaped wall body, 2-prefabricated light steel light concrete L-shaped wall body, 3-prefabricated light steel light concrete T-shaped wall body, 4-prefabricated light steel light concrete cross-shaped wall body, 5-prefabricated light steel light concrete door and window opening wall, 6-light steel beam, 7-prefabricated floor slab, 8-light steel keel, 9-light concrete, 10-vertical light steel upright post, 11-top guide beam, 12-bottom guide beam, 13-horizontal steel brace, 14-connecting box A, 15-connecting box B, 16-connecting box C, 17-light steel light concrete connecting beam, 18-prefabricated door and window opening steel frame, 19-thin wall light steel beam, 20-thin wall light steel transverse support, 21-cross steel belt support, 22-connecting angle piece, 23-horizontal steel bars of a floor slab, 24-prefabricated light floor slabs, 25-steel connecting plates and 26-light plate type floor slabs.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
a low multi-layer assembled light steel light concrete structure system is shown in figures 1-20 and comprises a prefabricated wall body, a prefabricated light steel light concrete door and window opening, a light steel beam 6 and a prefabricated floor slab 7, wherein the prefabricated wall body comprises a prefabricated light steel light concrete straight-line-shaped wall body 1, a prefabricated light steel light concrete L-shaped wall body 2, a prefabricated light steel light concrete T-shaped wall body 3, a prefabricated light steel light concrete cross-shaped wall body 4 and a prefabricated light steel light concrete door and window opening wall 5, the light steel light concrete straight-line wall body 1, the prefabricated light steel light concrete L-shaped wall body 2, the prefabricated light steel light concrete T-shaped wall body 3, the prefabricated light steel light concrete cross-shaped wall body 4, the prefabricated light steel light concrete door and window opening wall 5, the prefabricated light steel light concrete door and window opening, the light steel beam 6 and the prefabricated floor slab 7 are mutually fixed by adopting pre-buried connecting boxes.
As shown in fig. 1, the prefabricated light steel lightweight concrete straight-line wall 1, the prefabricated light steel lightweight concrete L-shaped wall 2, the prefabricated light steel lightweight concrete t-shaped wall 3, the prefabricated light steel lightweight concrete cross-shaped wall 4 and the prefabricated light steel lightweight concrete door and window opening wall 5 are all produced by using standard modulus or custom modulus for light steel keels 8 matched with the shapes of the prefabricated light steel lightweight concrete straight-line wall and the light concrete 9 poured between the light steel keels 8.
As shown in fig. 1, the light steel keel 8 comprises vertical light steel upright posts 10, a top guide beam 11 and a bottom guide beam 12 which are matched with and arranged with a light steel concrete straight-line-shaped wall 1, a prefabricated light steel concrete L-shaped wall 2, a prefabricated light steel concrete t-shaped wall 3 and a prefabricated light steel concrete cross-shaped wall 4 in shape, and are fixed with each other through pre-buried connecting boxes, and the adjacent vertical light steel upright posts 10 are fixedly connected through horizontal steel braces 13.
As shown in fig. 1, the pre-buried connection box comprises a connection box a14, a connection box B15 and a connection box C16, the connection box a14 is located at the corner of the light steel keel 8 and is fixedly connected with the light steel keel 8 through bolts or screws, so that connection between the prefabricated light steel concrete walls in the upper direction, the lower direction and the left direction is achieved, and hoisting holes or installation hooks can be arranged on the connection box to serve as hoisting points for transportation hoisting and construction hoisting. The connecting box B15 is located at the upper and lower ends of the vertical light steel upright post 10 in the light steel keel 8, and is fixedly connected with the light steel keel 8 through bolts or screws to realize the connection between the upper and lower walls. The connecting box C16 is located at the middle part of the vertical light steel upright post 10 in the light steel keel 8, and is fixedly connected with the light steel keel 8 through bolts or screws, so that the connection between the left wall body and the right wall body is realized, and the connecting box A14, the connecting box B15 and the connecting box C16 can be planned and arranged according to the actual wall body manufacturing and stress requirements.
As shown in fig. 1, the prefabricated light steel lightweight concrete door and window opening wall 5 is composed of prefabricated wall bodies which are mutually fixed through pre-buried connecting boxes and are positioned at two sides, prefabricated light steel lightweight concrete coupling beams 17 which are positioned at the top and the bottom, and a prefabricated door and window opening steel frame 18 which is positioned in the middle.
The prefabricated light steel and light concrete coupling beam 17 is composed of a light steel keel 8 and light concrete 9.
The prefabricated door and window opening steel frame 18 is formed by mutually vertically fixing a pair of steel section upright posts and a pair of steel section steel beams.
When the prefabricated light steel light concrete wall is used, the prefabricated light steel light concrete I-shaped wall body 1, the prefabricated light steel light concrete L-shaped wall body 2, the prefabricated light steel light concrete T-shaped wall body 3 and the prefabricated light steel light concrete cross-shaped wall body 4 are prefabricated, the requirements of a plane, a right angle, a three-fork angle and a four-fork angle in a building structure are met, the prefabricated light steel light concrete door and window opening wall 5 is prefabricated, the door and window reserved space in building construction is met, the prefabricated wall body with various shape functions can be used for realizing modular construction of the building structure, the prefabricated wall bodies are matched with bolts to serve as standard fixing pieces through pre-buried connecting boxes, connection of the prefabricated wall bodies is achieved, construction of the building structure is achieved, convenience of construction is improved, and the construction period of the building structure is shortened to a large extent. In addition, the prefabricated wall body adopts the light steel keel 8 as a strength supporting framework and the light concrete 9 as filling to form the prefabricated wall body with a solid surface.
Example 2:
a method for constructing a low multi-layer fabricated light steel and light concrete structural system, as shown in fig. 1-20, which is a method for constructing a prefabricated wall and a prefabricated floor slab 7 in a matching manner in embodiment 1, where the prefabricated floor slab 7 includes a beam slab floor and a slab floor, the beam slab floor is mainly composed of thin-wall light steel beams 19, thin-wall light steel transverse supports 20, connecting angle pieces 22, floor slab horizontal steel bars 23 and prefabricated light floor slabs 24, multiple groups of the thin-wall light steel beams 19 are arranged in parallel, two adjacent thin-wall light steel beams 19 are fixedly connected through the floor slab horizontal steel bars 23, two groups of adjacent thin-wall light steel beams 19 located at the extreme end are connected and fixed through the thin-wall light steel transverse supports 20, and the connection positions of the thin-wall light steel beams 19 and the thin-wall light steel transverse supports 20 are fixed through the connecting angle pieces 22; the construction method of the prefabricated wall and the beam slab type floor slab specifically comprises the following steps:
a1: fixing the thin-wall light steel beam 19 with the prefabricated wall; firstly, placing a steel connecting plate 25 in a wall gap between prefabricated walls, and fixing the steel connecting plate 25 by using bolts to penetrate through a connecting box A14;
a2: placing the horizontal steel bars 23 between the thin-wall light steel beams 19, and fixing two ends of the horizontal steel bars 23 on the thin-wall light steel beams 19 at two sides through bolts or screws;
a3: placing a thin-wall light steel transverse support 20 between the two groups of thin-wall light steel beams 19 at the end parts, and fixing the thin-wall light steel transverse support and the bolts at the right-angle joint through connecting angle pieces 22;
a4: subsequently laying prefabricated lightweight floor slabs 24 on the structure in a 3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
The plate type floor slab is a prefabricated light plate type floor slab 26, reserved pore channels are formed in the positions, located at the connecting positions of the prefabricated light plate type floor slab 26 and the embedded connecting boxes in the prefabricated wall, of the two ends of the prefabricated light plate type floor slab, and the construction method of the prefabricated wall and the plate type floor slab specifically comprises the following steps:
b1: after the prefabricated wall body of the next layer is installed in place, the prefabricated light slab floor 26 is conveyed to the installation position between the prefabricated wall bodies by hoisting or jacking, and then the connecting bolts are placed in the pre-buried connecting boxes of the reserved pore channels of the slab floor and the prefabricated wall body of the next layer in advance;
b2: b1, hoisting the upper layer of prefabricated wall, and fixing the connecting bolts through the pre-embedded mounting boxes in the upper layer of prefabricated wall, so that the upper and lower prefabricated walls are connected with the prefabricated light plate type floor slab 26;
b3: and finally, the embedded connection box is filled with light concrete or mortar to realize sealing.
Example 3:
a method for constructing a low multi-layer fabricated light steel lightweight concrete structural system, as shown in fig. 1 to 20, which is a method for constructing a prefabricated wall and a prefabricated floor slab 7 in cooperation in embodiment 1, wherein the prefabricated floor slab 7 includes a beam slab floor and a slab floor, the beam slab floor is mainly composed of thin-wall light steel beams 19, crossed steel strip supports 21, floor slab horizontal steel bars 23 and a prefabricated light floor slab 24, a plurality of groups of the thin-wall light steel beams 19 are arranged in parallel, two adjacent thin-wall light steel beams 19 are fixedly connected through the floor slab horizontal steel bars 23, two groups of adjacent thin-wall light steel beams 19 located at the extreme end are connected and fixed through the crossed steel strip supports 21, and the connection positions of the thin-wall light steel beams 19 and the crossed steel strip supports 21 are fixed through bolts or screws. The construction method of the prefabricated wall and the beam slab type floor slab specifically comprises the following steps:
a1: fixing the thin-wall light steel beam 19 with the prefabricated wall; firstly, placing a steel connecting plate 25 in a wall gap between prefabricated walls, and fixing the steel connecting plate 25 by using bolts to penetrate through a connecting box A14;
a2: placing the horizontal steel bars 23 between the thin-wall light steel beams 19, and fixing two ends of the horizontal steel bars 23 on the thin-wall light steel beams 19 at two sides through bolts or screws;
a3: two crossed steel belt supports 21 in one group are crossed and then are arranged between two groups of thin-wall light steel beams 19 at the end parts, and two ends of the two crossed steel belt supports 21 are fixed with the thin-wall light steel beams 19 through bolts or screws;
a4: subsequently laying prefabricated lightweight floor slabs 24 on the structure in a 3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
The plate type floor slab is a prefabricated light plate type floor slab 26, reserved pore channels are formed in the positions, located at the connecting positions of the prefabricated light plate type floor slab 26 and the embedded connecting boxes in the prefabricated wall, of the two ends of the prefabricated light plate type floor slab, and the construction method of the prefabricated wall and the plate type floor slab specifically comprises the following steps:
b1: after the prefabricated wall body of the next layer is installed in place, the prefabricated light slab floor 26 is conveyed to the installation position between the prefabricated wall bodies by hoisting or jacking, and then the connecting bolts are placed in the pre-buried connecting boxes of the reserved pore channels of the slab floor and the prefabricated wall body of the next layer in advance;
b2: b1, hoisting the upper layer of prefabricated wall, and fixing the connecting bolts through the pre-embedded mounting boxes in the upper layer of prefabricated wall, so that the upper and lower prefabricated walls are connected with the prefabricated light plate type floor slab 26;
b3: and finally, the embedded connection box is filled with light concrete or mortar to realize sealing.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A low multi-layer assembly type light steel light concrete structure system comprises a prefabricated wall body, a prefabricated light steel light concrete door and window opening, a light steel beam (6) and a prefabricated floor slab (7), and is characterized in that the prefabricated wall body comprises a prefabricated light steel light concrete straight-line-shaped wall body (1), a prefabricated light steel light concrete L-shaped wall body (2), a prefabricated light steel light concrete T-shaped wall body (3), a prefabricated light steel light concrete cross-shaped wall body (4) and a prefabricated light steel light concrete door and window opening wall (5); the prefabricated light steel light concrete door and window opening wall comprises a prefabricated light steel light concrete straight-line-shaped wall body (1), a prefabricated light steel light concrete L-shaped wall body (2), a prefabricated light steel light concrete T-shaped wall body (3), a prefabricated light steel light concrete cross-shaped wall body (4), a prefabricated light steel light concrete door and window opening wall (5), a prefabricated light steel light concrete door and window opening, a light steel beam (6) and a prefabricated floor slab (7) which are mutually fixed through pre-buried connecting boxes.
2. The low multi-layer assembled lightweight steel lightweight concrete structural system according to claim 1, wherein the prefabricated lightweight steel lightweight concrete straight-line wall body (1), the prefabricated lightweight steel lightweight concrete L-shaped wall body (2), the prefabricated lightweight steel lightweight concrete T-shaped wall body (3) and the prefabricated lightweight steel lightweight concrete cross-shaped wall body (4) are all produced by using standard modulus or custom modulus through a lightweight steel keel (8) matched with the prefabricated lightweight steel lightweight concrete cross-line wall body in shape and lightweight concrete (9) poured between the lightweight steel keels (8).
3. The low multi-layer assembled lightweight steel light concrete structural system of claim 2, wherein the lightweight steel keel (8) comprises vertical lightweight steel columns (10), a top guide beam (11) and a bottom guide beam (12) which are matched with the prefabricated lightweight steel light concrete straight-line-shaped wall body (1), the prefabricated lightweight steel light concrete L-shaped wall body (2), the prefabricated lightweight steel light concrete T-shaped wall body (3) and the prefabricated lightweight steel light concrete cross-shaped wall body (4) in shape and are fixed with each other through embedded connecting boxes, and the adjacent vertical lightweight steel columns (10) are fixedly connected through horizontal steel braces (13).
4. The low multi-layer assembled light steel light concrete structural system of claim 3, characterized in that the embedded connection box comprises a connection box A (14), a connection box B (15) and a connection box C (16), the connection box A (14) is located at a corner of the light steel keel (8) and is fixedly connected with the light steel keel (8) through bolts or screws, the connection box B (15) is located at upper and lower end portions of a vertical light steel upright (10) in the light steel keel (8) and is fixedly connected with the light steel keel (8) through bolts or screws, and the connection box C (16) is located at a middle portion of the vertical light steel upright (10) in the light steel keel (8) and is fixedly connected with the light steel keel (8) through bolts or screws.
5. The low multi-layer assembled lightweight steel lightweight concrete structural system according to claim 3, wherein the prefabricated lightweight steel lightweight concrete door and window opening wall (5) is composed of prefabricated wall bodies positioned at two sides, prefabricated lightweight steel lightweight concrete coupling beams (17) positioned at the top and the bottom and a prefabricated door and window opening steel frame (18) positioned at the middle, which are mutually fixed through pre-buried connecting boxes.
6. The system of claim 5, wherein the prefabricated lightweight steel lightweight concrete coupling beam (17) is composed of a lightweight steel keel (8) and lightweight concrete (9), and the prefabricated door and window opening steel frame (18) is composed of a pair of steel columns and a pair of steel beams which are vertically fixed to each other.
7. A method for constructing a low multi-storey fabricated light steel lightweight concrete structural system, which is characterized in that the method is a method for constructing a prefabricated wall body and a prefabricated floor slab (7) in the low multi-storey fabricated light steel lightweight concrete structural system according to any one of claims 1 to 6 in a matching manner, wherein the prefabricated floor slab (7) comprises a beam slab type floor slab and a slab type floor slab.
8. The construction method of the low multi-layer fabricated light steel and light concrete structural system according to claim 7, characterized in that the beam slab type floor slab is mainly composed of thin-wall light steel beams (19), thin-wall light steel transverse supports (20), connecting angle pieces (22), floor horizontal steel bars (23) and prefabricated light floor slabs (24), multiple groups of the thin-wall light steel beams (19) are arranged in parallel, two adjacent thin-wall light steel beams (19) are fixedly connected through the floor horizontal steel bars (23), two groups of adjacent thin-wall light steel beams (19) at the end part are fixedly connected through the thin-wall light steel transverse supports (20), and the connection part of the thin-wall light steel beams (19) and the thin-wall light steel transverse supports (20) is fixed through the connecting angle pieces (22); the construction method of the prefabricated wall and the beam slab type floor slab specifically comprises the following steps:
a1: fixing the thin-wall light steel beam (19) with the prefabricated wall; firstly, placing a steel connecting plate (25) in a wall gap between prefabricated walls, and fixing the steel connecting plate (25) with a bolt penetrating through a connecting box A (14);
a2: the horizontal steel bars (23) are arranged between the thin-wall light steel beams (19), and two ends of each horizontal steel bar (23) are fixed on the thin-wall light steel beams (19) on two sides through bolts;
a3: placing a thin-wall light steel transverse support (20) between two groups of thin-wall light steel beams (19) at the end parts, and fixing the thin-wall light steel transverse support at the right-angle joint by using bolts or screws through connecting angle pieces (22);
a4: subsequently laying a prefabricated lightweight floor slab (24) on the structure in a 3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
9. The construction method of the low multi-layer assembled light steel and light concrete structural system according to claim 7, wherein the slab floor is a prefabricated light slab floor (26), both ends of the prefabricated light slab floor (26) are provided with reserved holes at the connection parts of the prefabricated light slab floor and pre-embedded connection boxes in a prefabricated wall, and the construction method of the prefabricated wall and the slab floor specifically comprises the following steps:
b1: after the prefabricated wall body of the next layer is installed in place, the prefabricated light slab floor (26) is conveyed to the installation position between the prefabricated wall bodies by hoisting or jacking, and then the connecting bolts are placed in the pre-buried connecting boxes of the reserved pore channels of the slab floor and the prefabricated wall body of the next layer in advance;
b2: b1, hoisting the upper layer of prefabricated wall, and fixing the connecting bolts through the pre-embedded mounting boxes in the upper layer of prefabricated wall, so that the upper and lower prefabricated walls are connected with the prefabricated light plate type floor (26);
b3: and finally, the embedded connection box is filled with light concrete or mortar to realize sealing.
10. The construction method of the low multi-layer fabricated light steel light concrete structural system according to claim 9, characterized in that the precast floor slab (7) comprises a beam slab floor and a slab floor, the beam slab floor is mainly composed of thin-wall light steel beams (19), crossed steel belt supports (21), floor horizontal steel bars (23) and precast light floor slabs (24), multiple groups of the thin-wall light steel beams (19) are arranged in parallel, two adjacent thin-wall light steel beams (19) are fixedly connected through the floor horizontal steel bars (23), two groups of adjacent thin-wall light steel beams (19) at the end part are fixedly connected through the crossed steel belt supports (21), and the connection part of the thin-wall light steel beams (19) and the crossed steel belt supports (21) is fixed through bolts or screws; the construction method of the prefabricated wall and the beam slab type floor slab specifically comprises the following steps:
a1: fixing the thin-wall light steel beam (19) with the prefabricated wall; firstly, placing a steel connecting plate (25) in a wall gap between prefabricated walls, and fixing the steel connecting plate (25) with a bolt penetrating through a connecting box A (14);
a2: the horizontal steel bars (23) are arranged between the thin-wall light steel beams (19), and two ends of each horizontal steel bar (23) are fixed on the thin-wall light steel beams (19) on two sides through bolts;
a3: two crossed steel belt supports (21) in one group are crossed and then are arranged between two groups of thin-wall light steel beams (19) at the end parts, and two ends of the two crossed steel belt supports (21) are fixed with the thin-wall light steel beams (19) through bolts or screws;
a4: subsequently laying a prefabricated lightweight floor slab (24) on the structure in a 3;
a5: and filling the position of the embedded connecting box with light concrete or mortar to realize sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392678.5A CN113931298B (en) | 2021-11-23 | 2021-11-23 | Construction method of low multilayer assembled light steel light concrete structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111392678.5A CN113931298B (en) | 2021-11-23 | 2021-11-23 | Construction method of low multilayer assembled light steel light concrete structure system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113931298A true CN113931298A (en) | 2022-01-14 |
| CN113931298B CN113931298B (en) | 2023-06-09 |
Family
ID=79287416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111392678.5A Active CN113931298B (en) | 2021-11-23 | 2021-11-23 | Construction method of low multilayer assembled light steel light concrete structure system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113931298B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145839A (en) * | 2022-09-13 | 2023-05-23 | 承德石油高等专科学校 | Energy-saving building assembled wall anti-seismic mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863270A1 (en) * | 1997-03-04 | 1998-09-09 | Paul J. Roth | Set of wall elements for buildings |
| CN104790555A (en) * | 2015-04-22 | 2015-07-22 | 武汉思可达建筑技术有限公司 | Light steel keel and lightweight concrete prefabricated combining wall and construction method thereof |
| CN204983131U (en) * | 2015-06-18 | 2016-01-20 | 北京大工简筑科技有限公司 | DGC modularization prefabricated buildings system |
| WO2017028476A1 (en) * | 2015-08-19 | 2017-02-23 | 周兆弟 | Prefabricated hoisting wall of assembly-type building |
| CN106836468A (en) * | 2016-12-22 | 2017-06-13 | 清华大学建筑设计研究院有限公司 | A kind of low multilayer assembled heat insulation energy saving building |
| CN206769092U (en) * | 2017-04-28 | 2017-12-19 | 沈阳建筑大学 | The light steel of half assembled-foam concrete assembled wall |
| CN110424598A (en) * | 2019-08-09 | 2019-11-08 | 中国水利水电第八工程局有限公司 | A kind of assembling frame out-hung panel technical system and its construction method |
-
2021
- 2021-11-23 CN CN202111392678.5A patent/CN113931298B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0863270A1 (en) * | 1997-03-04 | 1998-09-09 | Paul J. Roth | Set of wall elements for buildings |
| CN104790555A (en) * | 2015-04-22 | 2015-07-22 | 武汉思可达建筑技术有限公司 | Light steel keel and lightweight concrete prefabricated combining wall and construction method thereof |
| CN204983131U (en) * | 2015-06-18 | 2016-01-20 | 北京大工简筑科技有限公司 | DGC modularization prefabricated buildings system |
| WO2017028476A1 (en) * | 2015-08-19 | 2017-02-23 | 周兆弟 | Prefabricated hoisting wall of assembly-type building |
| CN106836468A (en) * | 2016-12-22 | 2017-06-13 | 清华大学建筑设计研究院有限公司 | A kind of low multilayer assembled heat insulation energy saving building |
| CN206769092U (en) * | 2017-04-28 | 2017-12-19 | 沈阳建筑大学 | The light steel of half assembled-foam concrete assembled wall |
| CN110424598A (en) * | 2019-08-09 | 2019-11-08 | 中国水利水电第八工程局有限公司 | A kind of assembling frame out-hung panel technical system and its construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145839A (en) * | 2022-09-13 | 2023-05-23 | 承德石油高等专科学校 | Energy-saving building assembled wall anti-seismic mechanism |
| CN116145839B (en) * | 2022-09-13 | 2023-09-19 | 承德石油高等专科学校 | Energy-saving building assembled wall anti-seismic mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113931298B (en) | 2023-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6101779A (en) | Construction unit for a modular building | |
| CN207063170U (en) | The house that a kind of shear wall slab by steel square tube and steel plate splicing is assembled | |
| CN114232843B (en) | Fully assembled building and construction method thereof | |
| JP2001512198A (en) | Building panels used for building construction | |
| CN110670722A (en) | Implementation method of beam-column connecting node of fabricated building | |
| CN106894504B (en) | Light assembled steel structure house and construction method thereof | |
| CN202125104U (en) | Residential building system formed by cast-in-place beam columns and prefabricated sandwich concrete wall slabs | |
| CN216276132U (en) | Low multilayer assembled light steel light concrete structural system | |
| CN113931298A (en) | Low-multilayer assembled light steel and light concrete structural system and construction method thereof | |
| CN112459238A (en) | Integrated module wallboard, steel structure assembly type building and installation method thereof | |
| WO2020214086A1 (en) | Precast building | |
| CN108193800B (en) | Assembled composite shear wall and connection structure thereof with steel beam and floor slab | |
| CN216920899U (en) | Profiled steel sheet floor structure with grid beam and bidirectional stress | |
| US11692341B2 (en) | Lightweight concrete modular integrated construction (MIC) system | |
| CN215717541U (en) | Modular integrally-assembled building system, building module unit and connecting node | |
| CN214364235U (en) | Assembled steel sheet compound shear wall body structure | |
| CN210164103U (en) | Mixed prefabricated multi-cavity reinforced concrete wall and underground space structure system | |
| CN106760115B (en) | Light assembled composite floor slab and construction method thereof | |
| CN112726942A (en) | Concrete prefabricated shear wall structure with sandwich steel plates and construction method | |
| CN112942898A (en) | Modular integrally-assembled building system, building module unit and connecting node | |
| CN220580211U (en) | Prefabricated frame module and module building | |
| CN212926452U (en) | Joint connecting device for assembly type building frame | |
| CN115045390B (en) | Construction method of fully-assembled light steel and light concrete structural system | |
| CN220414582U (en) | Precast concrete bay window, precast wall body, precast room module and modularized building | |
| JP7178730B2 (en) | Frame unit and simple structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |