CN215053993U - Prefabricated steel-concrete beam, column and floor combined house - Google Patents
Prefabricated steel-concrete beam, column and floor combined house Download PDFInfo
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- CN215053993U CN215053993U CN202120784207.8U CN202120784207U CN215053993U CN 215053993 U CN215053993 U CN 215053993U CN 202120784207 U CN202120784207 U CN 202120784207U CN 215053993 U CN215053993 U CN 215053993U
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Abstract
The utility model discloses a prefabricated steel-concrete beam, column and floor combined house, which is formed by assembling prefabricated steel-concrete columns, beams, floor bearing plates and/or partition plates on the basis of the house; the prefabricated steel-concrete column and the foundation are connected into a whole through a steel bar cage and a connecting iron component to form a structural upright column; the prefabricated steel-concrete beam integrally connects the top ends of the prefabricated steel-concrete columns to form a structural beam; the column, the beam and the floor bearing plate are firmly fixed through the supporting system, partition boards are arranged among the beam, the column and the floor bearing plate, the structure of the building is stabilized through pouring concrete, and the steel bar cage and the connecting iron member are protected; so as to form a multi-storey building. The utility model has the advantages that: firstly, standardized production and maintenance are carried out by using a mold in a factory, the product quality is good, the production cost is low, and less construction waste is generated; and secondly, the advantages of a steel structure and a concrete structure are combined, so that the bearing capacity is high, the rigidity is high, and the anti-seismic performance is good.
Description
Technical Field
The utility model relates to a building field, specifically speaking relates to a prefabricated steel-concrete beam, post and building carrier plate, prefabricated house construction method that partition plate structure material makes up.
Background
In recent years, in order to create a 'Chinese construction' brand with international competitiveness, the living and construction department combines thirteen ministries and nine departments to issue documents such as guidance opinions about promoting the cooperative development of intelligent construction and building industrialization, nordo opinions about accelerating the industrialized development of novel buildings and the like in sequence, so as to guide the industrialized development of novel buildings and drive the comprehensive transformation and upgrading of the building industry. In order to accelerate the industrial upgrading of buildings and to vigorously develop assembly type buildings, the establishment of specialized, large-scale and information production systems based on standard components is inevitably promoted.
The fabricated building is a building fabricated by prefabricated parts on a construction site, is a great change of a construction mode, and is a main representative of industrialization of a novel building.
Currently, the assembly type building technology adopted in China mainly comes from developed countries such as Europe, America and the like, namely the traditional method of a 'pc' component and a spiral sleeve (a precast concrete component is called as pc for short). Many domestic enterprises participate in the production, various parts and accessories are also completely produced, but the 'pc' component has heavy weight and complex production process, the requirement on a manufactured factory building is high, the requirement on a stacking site is high, hoisting equipment with larger tonnage needs to be selected for installation and construction, and multiple persons cooperate with each other. The size can not be changed on site, only the tailor-made plate can be made, and the splicing precision of the plate is low, so that local mould repairing is often needed. And the pc board is heavy, so that the number of stacked layers is small, and the transportation cost is high. And the like greatly restrict the popularization and the application of the assembly type building. At present, although many domestic institutes and universities have made research in this field and achieved a lot of results, they have not always left the category of pc components.
SUMMERY OF THE UTILITY MODEL
The utility model discloses just design a house construction method that prefabricated steel-concrete roof beam, post and light building carrier plate, partition plate combine in order to solve above-mentioned technical problem.
The utility model provides a technical scheme that its technical problem adopted is:
a prefabricated steel-concrete beam, column and floor combined house is formed by assembling prefabricated steel-concrete columns, prefabricated steel-concrete beams, floor bearing plates and/or partition plates on a house foundation; the prefabricated steel-concrete column and the foundation are connected into a whole through a steel bar cage and a connecting iron member to form a structural upright column of a first floor of the house; the prefabricated steel-concrete beam integrally connects the top ends of the prefabricated steel-concrete columns to form a structural beam of a first floor of the house; the column, the beam and the floor bearing plate are firmly fixed through the supporting system to form a stable house frame structure, partition boards are arranged among the beam, the column and the floor bearing plate, the structure is stabilized through pouring concrete, and the steel bar cage and the connecting iron member are protected; so as to form a multi-storey building.
In the prefabricated steel-concrete beam, column and floor combined house, the prefabricated steel-concrete column is a steel skeleton welded by section steel or steel plates, and composite concrete is poured on, around and/or inside the prefabricated steel-concrete column, so that the section steel and the concrete form an integral structure with common stress and deformation coordination.
The prefabricated steel-concrete column is an L-shaped column, and the L-shaped column comprises: the steel bar fixing device comprises C-shaped steel battens, an L-shaped steel plate, concrete and an L-shaped hoop; c-shaped steel fillets are welded on each longitudinal plane of the L-shaped steel plate at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets; a transverse L-shaped hoop is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; wrapping a layer of concrete on the outer layer of the latticed steel skeleton, wherein the concrete penetrates into gaps among all the parts of the latticed steel skeleton; the steel fillets are hollow C-shaped grooves, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the open C-shaped notches of the steel fillets can play a role in riveting and fixing the steel skeleton and the concrete; the L-shaped anchor ear is formed by processing hollow C-shaped channel steel battens, and the steel battens are attached to the back of the L-shaped anchor ear.
The prefabricated steel-concrete column is a T-shaped column, and the T-shaped column comprises: c-shaped steel battens, T-shaped steel plates, concrete and T-shaped anchor ears; c-shaped steel fillets are welded on each longitudinal plane of the T-shaped steel plate at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets; a transverse T-shaped hoop is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete is wrapped on the outer layer of the latticed steel skeleton, and the concrete penetrates into gaps among all the components of the latticed steel skeleton; the steel fillets are hollow C-shaped grooves, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the open C-shaped notches of the steel fillets can play a role in riveting and fixing the steel skeleton and the concrete; the T-shaped anchor ear is formed by processing hollow C-shaped channel steel fillets and is attached to the back of the steel fillets.
The prefabricated steel-concrete column is a hollow circular column, and the circular column comprises: c-shaped steel battens, round steel plates, concrete and round hoops; c-shaped steel fillets are welded on the longitudinal outer plane of the circular steel plate at intervals, and the steel plate is attached to the back of each C-shaped steel fillet; a transverse round hoop is welded on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete is wrapped on the outer circle surface of the latticed steel skeleton, and the concrete penetrates into gaps among all the components of the latticed steel skeleton; the steel fillet is hollow "C" shape groove, the circular staple bolt is that hollow "C" shape channel-section steel fillet processing forms, pastes the steel fillet on the back.
The prefabricated steel-concrete column is a hollow square column, and the square column comprises: c-shaped steel battens, square steel plates, concrete and square anchor ears; c-shaped steel fillets are welded on the longitudinal outer plane of the square steel plate at intervals, and steel plates are attached to the backs of the C-shaped steel fillets; a transverse square hoop is welded on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete is wrapped around the latticed steel skeleton, and the concrete penetrates into gaps among all the components of the latticed steel skeleton; the square hoop is formed by processing hollow C-shaped channel steel fillets, and the steel fillets are attached to the back of the square hoop.
The prefabricated steel-concrete beam, the column and the floor combined house is characterized in that the prefabricated steel-concrete beam is a hollow beam, and the hollow beam comprises: c-shaped steel battens, pressed steel plates, concrete and battens hoops; the pressed steel plate is formed by folding the longitudinal outer edge of a groove-shaped steel plate into a rib, C-shaped steel fillets are welded on the longitudinal outer plane of the pressed steel plate at intervals, and the steel plate is attached to the back of each C-shaped steel fillet; welding a horizontal fillet hoop on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete is wrapped on the three outer layers of the grid-shaped steel skeleton, and the concrete penetrates into gaps among all the parts of the grid-shaped steel skeleton; the steel fillet (1) is a hollow C-shaped groove, the fillet hoop is formed by processing hollow C-shaped channel steel fillets, and the steel fillet is attached to the back of the hoop.
Prefabricated steel-concrete beam, post, the house that the floor combines, the partition plate is light partition plate, includes: c-shaped steel battens, steel wire meshes, cement composite mortar and foam boards; the method comprises the steps of sticking a glass fiber net on a pressed foam board, smearing cement mortar in the edge grooves and on two sides of the pressed foam board, embedding C-shaped steel edges of the pressed C-shaped grooves in the mortar of the edge grooves and the grooves on the two sides of the foam board, paving a steel wire net on the outer layer, and paving anti-crack cement composite mortar on the outer layer of the foam board on which the steel wire net is paved through a mortar passing machine.
In the prefabricated house combining the steel-concrete beam, the column and the floor slab, the floor bearing plate is a light floor bearing plate which consists of a steel bar truss and a strong rib steel mesh cement plate;
the steel bar truss is a precast concrete component of a reinforced structure and is formed by welding an upper dazzle steel bar, two lower dazzle steel bars and web member steel bars on two sides;
the strong rib steel mesh cement board comprises: the concrete composite mortar comprises L-shaped steel battens, a steel wire mesh, reinforcing steel bars, a steel bar truss and cement composite mortar; the bottom layer of the high-rib steel mesh cement board is a cement composite mortar layer, the middle layer of the cement composite mortar is paved with a steel wire mesh, rib edges of 30mm are arranged on two sides of the wide edge of the high-rib steel mesh cement board, and L-shaped steel fillets are embedded in the rib edges to increase the strength of the rib edges; a plurality of steel bars are uniformly distributed above the cement composite mortar layer, two ends of each steel bar are arranged in the rib edges and fixed above the cement composite mortar layer to form continuous stress points, and a steel bar truss is welded on the steel bars to connect the steel mesh cement board with the steel bar truss;
the L-shaped steel fillet is a fastener which is formed by pressing a steel sheet with the thickness of 0.5-1mm into an L-shaped groove, namely the L-shaped steel fillet is 25-35mm wide at the lower edge, 20-25mm high and 8-12mm wide at the upper edge;
the steel wire mesh is a galvanized electric welding mesh with the wire diameter of about 0.5-1mm and the aperture of 10-20 mm.
The prefabricated steel-concrete beam, column, floor bearing plate and partition wall combined house is characterized in that the cement composite mortar is prepared by doping polypropylene fibers, an expanding agent, a water reducing agent and superfine admixtures of silica fume and fly ash into common cement mortar.
The utility model has the advantages that:
the prefabricated steel-concrete beam, column, floor bearing plate and partition plate combined house is produced and maintained in a standardized mode by using a mold in a factory, so that the product quality is improved, the production cost is reduced, the construction waste is reduced, and the building quality is greatly improved.
The steel-concrete composite structure is an important structural form developed after a steel structure and a concrete structure, and the advantages of the steel structure and the concrete structure can be integrated by the steel-concrete through a reasonable combination mode, so that the steel-concrete composite structure has the advantages of high bearing capacity, high rigidity, good anti-seismic performance, quickness and convenience in construction, steel consumption saving and the like.
The concrete implementation of the steel-concrete combined structure is that the steel sections or steel plates are welded into a steel skeleton, and concrete is poured on the steel skeleton, the periphery and/or the interior of the steel skeleton, so that the steel sections or the steel skeleton and the concrete form a whole structure with stress and deformation coordination. The steel-concrete combined structure can give full play to the respective superiority of two materials and overcome the respective disadvantages, so that the working performance of the steel-concrete combined structure is more superior than that of a structure made of a single material.
Drawings
FIG. 1 is a schematic diagram of the rear structure of the house pillar of the present invention;
FIG. 2 is a schematic diagram of the structure of the house after beam erection;
FIG. 3 is a schematic structural view of the house covering a floor deck of the present invention;
FIG. 4 is a schematic view of the whole structure of the house with partition boards;
FIG. 5 is a schematic view of the partition board structure of the present invention;
FIG. 6 is a schematic cross-sectional structure of the partition board of the present invention;
fig. 7 is a schematic structural view of a fillet a which is a component used in the present invention;
FIG. 8 is a schematic view of the foam board structure used in the present invention;
fig. 9 is a schematic structural view of the prefabricated steel-concrete combined column-circular column of the present invention;
fig. 10 is a schematic diagram of a pressed steel plate structure for a prefabricated steel-concrete combined column-circular column according to the present invention;
fig. 11 is a schematic structural view of a prefabricated steel-concrete combined column-circular column fillet reinforced pressed steel plate of the present invention;
fig. 12 is a schematic cross-sectional view of the prefabricated steel-concrete composite column-circular column according to the present invention;
fig. 13 is a schematic structural view of the prefabricated steel-concrete combined column-L-shaped column of the present invention;
fig. 14 is a schematic cross-sectional structure view of the prefabricated steel-concrete composite column-L-shaped column of the present invention;
fig. 15 is a schematic diagram of a pressed steel plate structure for a prefabricated steel-concrete combined column-L-shaped column according to the present invention;
fig. 16 is a schematic diagram of a prefabricated steel-concrete combined column-L-shaped column fillet reinforced pressed steel plate structure of the present invention;
fig. 17 is a schematic structural view of the prefabricated steel-concrete composite column-T-shaped column of the present invention;
fig. 18 is a schematic cross-sectional structure view of the prefabricated steel-concrete composite column-T-shaped column of the present invention;
FIG. 19 is a schematic diagram of a pressed steel plate structure for a prefabricated steel-concrete composite column-T-shaped column according to the present invention;
fig. 20 is a schematic diagram of a prefabricated steel-concrete combined column-T-shaped column fillet reinforced pressed steel plate structure of the present invention;
fig. 21 is a schematic view of the structure of the prefabricated steel-concrete composite column-square column of the present invention;
fig. 22 is a schematic cross-sectional structure view of a prefabricated steel-concrete composite column-square column according to the present invention;
fig. 23 is a schematic diagram of a pressed steel plate structure for a prefabricated steel-concrete combined column-square column according to the present invention;
fig. 24 is a schematic diagram of a prefabricated steel-concrete combined column-square column fillet reinforced pressed steel plate structure of the present invention;
fig. 25 is a schematic structural view of the prefabricated steel-concrete composite beam of the present invention;
fig. 26 is a schematic cross-sectional structure view of the prefabricated steel-concrete composite beam of the present invention;
fig. 27 is a schematic view of a pressed steel plate structure used for the prefabricated steel-concrete composite beam of the present invention;
fig. 28 is a schematic diagram of the structure of the precast steel-concrete composite beam fillet reinforced pressed steel plate of the present invention;
fig. 29 is a schematic structural view of a floor support plate of the present invention;
FIG. 30 is a side sectional view of the floor deck according to the present invention;
fig. 31 is a schematic structural view of a fillet B, which is a component used in the present invention;
fig. 32 is a schematic structural view of the floor deck-fillet combined truss of the present invention;
fig. 33 is a schematic view of the structure of the floor support plate pre-mold of the present invention.
FIGS. 1-4 Overall: the steel bar-type building floor comprises steel bars (5), rectangular columns (10), T-shaped columns (11), L-shaped columns (12), square columns (13), hollow beams (14), floor bearing plates (15) and partition plates (16).
Fig. 5-8 partition panel (16): c-shaped steel battens (1), a steel wire mesh (4), cement composite mortar (8) and a foam board (9).
FIGS. 9-12 circular columns: c shaped steel stupefied strip (1), round steel sheet (22), concrete (3), circle staple bolt (24).
FIGS. 13-16L-shaped post (12): c shaped steel fillet (1), L steel sheet (32), concrete (3), L staple bolt 34).
FIGS. 17-20T-shaped post (11): the steel bar concrete formwork comprises C-shaped steel battens (1), a pressed T-shaped steel plate (42), concrete (3) and a T hoop (44).
FIGS. 21-24 Square columns: c shaped steel stupefied (1), square steel sheet (52), concrete (3), square staple bolt (54).
Hollow beam (14) of fig. 25-28: c shaped steel fillet (1), pressing steel plate (62), concrete (3), fillet staple bolt (64).
Fig. 29-33 floor deck (15): the steel bar reinforced concrete composite concrete slab comprises L-shaped steel battens (71), a steel wire mesh (74), steel bars (75), a mold (76), a steel bar truss (77) and cement composite mortar (78).
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Description of the invention in general and of the components in accordance with the drawings
As shown in fig. 1-4, a prefabricated steel-concrete beam, column, floor deck plate and partition plate combined house is formed by assembling prefabricated steel-concrete columns, prefabricated steel-concrete beams, floor deck plates and/or partition plates on the basis of the house; the prefabricated steel-concrete column and the foundation are connected into a whole through a steel bar cage and a connecting iron member to form a structural upright column of a first floor of the house; the prefabricated steel-concrete beam integrally connects the top ends of the prefabricated steel-concrete columns to form a structural beam of a first floor of the house; the column, the beam and the floor bearing plate are firmly fixed through the supporting system to form a stable house frame structure, partition boards are arranged among the beam, the column and the floor bearing plate, the structure is stabilized through pouring concrete, and the steel bar cage and the connecting iron member are protected; so as to form a multi-storey building.
The prefabricated steel-concrete column is a steel skeleton welded by section steel or steel plates, and composite concrete is poured on, around and/or inside the steel skeleton welded by section steel or steel plates, so that the section steel and the concrete form a structure which is integrally stressed and deforms coordinately.
As shown in fig. 13 to 16, the prefabricated steel-concrete beam, column, floor deck and partition wall combined house is characterized in that the prefabricated steel-concrete column is an L-shaped column, and the L-shaped column 12 includes: the steel bar comprises a C-shaped steel fillet 1, an L-shaped steel plate 32, concrete 3 and an L anchor ear 34; c-shaped steel fillets 1 are welded on each longitudinal plane of the L-shaped steel plate 32 at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets 1; a transverse L-shaped anchor ear 34 is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; wrapping a layer of concrete 3 on the outer layer of the latticed steel skeleton, and enabling the concrete 3 to penetrate into gaps among all the parts of the latticed steel skeleton; the steel fillet 1 is a hollow C-shaped groove, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the opened C-shaped notch of the steel fillet can play a role in riveting a steel skeleton and concrete; the L-shaped anchor ear 34 is formed by processing a hollow C-shaped channel steel fillet and is attached to the back of the steel fillet 1.
As shown in fig. 17 to 20, the prefabricated steel-concrete beam, column, floor deck plate and partition plate combined house is characterized in that the prefabricated steel-concrete column is a T-shaped column, and the T-shaped column 11 includes: c-shaped steel battens 1, T-shaped steel plates 42, concrete 3 and T hoops 44; c-shaped steel fillets 1 are welded on each longitudinal plane of the T-shaped steel plate 42 at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets 1; a transverse T-shaped hoop 44 is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete 3 wraps the outer layer of the latticed steel skeleton, and the concrete 3 penetrates into gaps of all the parts of the latticed steel skeleton; the steel fillet 1 is a hollow C-shaped groove, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the opened C-shaped notch of the steel fillet can play a role in riveting a steel skeleton and concrete; the T-shaped anchor ear 44 is formed by processing hollow C-shaped channel steel fillet strips, and is attached to the steel fillet strip 1.
As shown in fig. 9 to 12, the prefabricated steel-concrete beam, column, floor deck plate and partition plate combined house is characterized in that the prefabricated steel-concrete column is a hollow circular column, and the circular column comprises: c-shaped steel battens 1, round steel plates 22, concrete 3 and round hoops 24; c-shaped steel fillets 1 are welded on the longitudinal outer plane of the circular steel plate 22 at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets 1; a transverse round hoop 24 is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete 3 is wrapped on the outer circle surface of the grid-shaped steel skeleton, and the concrete 3 permeates into gaps among all the components of the grid-shaped steel skeleton; the steel fillet 1 is a hollow C-shaped groove, the round hoop 24 is formed by processing hollow C-shaped channel steel fillet, and the back of the round hoop is attached to the steel fillet 1.
As shown in fig. 21 to 24, in the prefabricated steel-concrete beam and column and floor deck plate and partition plate combined house, the prefabricated steel-concrete column is a hollow square column, and the square column 13 includes: c-shaped steel battens 1, square steel plates 52, concrete 3 and square anchor ears 54; c-shaped steel fillets 1 are welded on the longitudinal outer plane of the square steel plate 22 at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets 1; a transverse square hoop 54 is welded on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete 3 is wrapped around the latticed steel skeleton, and the concrete 3 permeates into gaps of all the parts of the latticed steel skeleton; the steel fillet 1 is a hollow C-shaped groove, the square hoop 54 is formed by processing a hollow C-shaped channel steel fillet, and the back of the square hoop is attached to the steel fillet 1.
As shown in fig. 25 to 28, the prefabricated steel-concrete beam, column, floor deck and partition wall combined house is a hollow beam 14, and includes: c-shaped steel battens 1, pressed steel plates 62, concrete 3 and battens hoops 64; the pressed steel plate 62 is formed by folding the longitudinal outer edge of a groove-shaped steel plate into a rib, C-shaped steel fillets 1 are welded on the longitudinal outer plane of the pressed steel plate 62 at intervals, and the steel plate is attached to the back of each C-shaped steel fillet 1; welding a transverse fillet hoop 64 on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete 3 wraps the three outer layers of the grid-shaped steel skeleton, and the concrete 3 penetrates into gaps of all the parts of the grid-shaped steel skeleton; the steel fillet 1 is a hollow C-shaped groove, the fillet hoop 64 is formed by processing hollow C-shaped channel steel fillets, and the back of the fillet hoop is attached to the steel fillet 1.
As shown in fig. 29-33, the prefabricated steel-concrete beam, column, floor deck and partition wall plate combined house, the partition wall plate 16 is a light partition wall plate, and includes: c-shaped steel battens 1, steel wire meshes 4, cement composite mortar 8 and foam boards 9; pasting glass fiber nets on the pressed foam boards 9, smearing cement mortar in the edge grooves and on two sides of the pressed foam boards 9, embedding the C-shaped steel edges 1 of the pressed C-shaped grooves in the mortar of the edge grooves and the groove seams on the two sides of the foam boards, paving steel wire meshes 4 on the outer layers, and paving anti-crack cement composite mortar 8 on the outer layers of the foam boards 9 paved with the steel wire meshes 4 through a mortar passing machine.
The prefabricated steel-concrete beam, the prefabricated steel-concrete column, the prefabricated steel-concrete floor bearing plate and the prefabricated partition wall plate are combined, the prefabricated steel-concrete floor bearing plate 15 is a light floor bearing plate, and the light floor bearing plate consists of a steel bar truss 77 and a strong rib steel mesh cement plate;
the steel bar truss 77 is a precast concrete member of a reinforced structure and is formed by welding an upper dazzling steel bar, two lower dazzling steel bars and web member steel bars on two sides;
the strong rib steel mesh cement board comprises: the concrete comprises L-shaped steel battens 71, a steel wire mesh 74, steel bars 75, steel bar trusses 77 and cement composite mortar 78; the bottom layer of the strong rib steel mesh cement board is a cement composite mortar 78 layer, a steel wire mesh 74 is laid on the middle layer of the cement composite mortar 78, rib edges of 30mm are arranged on two sides of the wide edge of the strong rib steel mesh cement board, and L-shaped steel fillets 71 are embedded in the rib edges, so that the strength of the rib edges is increased; a plurality of steel bars 75 are uniformly distributed above the 78 layers of the cement composite mortar, two ends of the steel bars 75 are arranged in rib edges and fixed above the 78 layers of the cement composite mortar to form continuous stress points, a steel bar truss is welded on the steel bars 75, and a steel mesh cement plate with a strong rib and the steel bar truss are connected together;
the L-shaped steel fillet 71 is a fastener which is formed by pressing steel sheets with the thickness of 0.5-1mm into an L-shaped groove, namely the L-shaped steel fillet 71, the width of the lower edge is 25-35mm, the height is 20-25mm, and the width of the upper edge is 8-12 mm;
the steel wire mesh 74 is a galvanized electric welding mesh with the wire diameter of about 0.5-1mm and the aperture of 10-20 mm.
The cement composite mortar is prepared by doping polypropylene fiber, an expanding agent, a water reducing agent, and superfine admixtures of silica fume and fly ash into common cement mortar.
Second, the description of the processing procedure of the present invention with reference to the drawings and the construction process
As shown in fig. 1, the present invention relates to a house with a combination of prefabricated steel-concrete beam, column, floor support plate and partition plate, which is assembled by combining the prefabricated steel-concrete beam, the prefabricated steel-concrete column, the floor support plate and/or the partition plate on the basis of the house. The specific implementation is as follows: firstly, excavating and binding reinforcing steel bars on a construction land according to a designed drawing, and pouring concrete to finish foundation construction. A fabricated foundation may also be used. During basic construction, set up the pre-buried connection iron component in the position that needs set up the structure post according to the drawing, the position that sets up hollow post is except pre-buried connection iron component, still needs vertical reinforcement to reserve, convenient later with the welding of the reinforcing bar cage in the hollow post. The position of the pre-buried connecting iron component is made into a groove, so that the iron component can be conveniently poured with concrete after being connected.
After the foundation is finished, mounting a prefabricated steel-concrete combined structure solid column and a structure hollow column according to positions set by a drawing, firmly fixing by using an inclined support, connecting a reserved iron framework at the lower ends of the structure solid column and the structure hollow column with an iron component pre-embedded on the foundation by welding, and connecting a steel bar pre-embedded in the iron component of the structure hollow column foundation with a steel bar cage in the hollow column by welding; firstly welding the steel bar cage, and then sleeving the hollow column for welding. And after welding and fixing, refilling high-performance cement composite mortar, and connecting the structural column, the hollow column and the foundation into a whole.
Then, a structural hollow beam is installed at the upper ends of the prefabricated steel-concrete composite structure solid column and the structural hollow column, the prefabricated steel-concrete structural hollow beam is placed according to the set position and specification, a steel framework reserved at the two ends of the structural hollow beam is welded with the structural solid column and a steel framework reserved at the upper end of the structural hollow column, a pre-tied steel reinforcement cage is placed in the structural hollow beam, and the steel reinforcement cage in the structural hollow beam is welded with the steel reinforcement cage in the structural hollow column and the steel framework at the upper end of the structural solid column.
And after the installation of the cross beams is finished, installing the light floor support plate at a vacant position between the cross beams. Arrange the portion according to set position, specification with light building carrier plate, the steel bar truss that light building carrier plate both ends stretched out and the steel bar cage welded connection in the hollow beam, the connection owner reinforcing bar that passes in the follow steel bar truss also with the steel bar cage welded connection in the hollow beam of structure. Then, the columns, the beams and the floor bearing plates are firmly fixed by using the quick assembly type supporting system, then the concrete of c30 is poured on the columns, the floors, the beams and the columns are poured into a whole, and the stable house frame structure is formed.
After the frame is completed, light partition boards are installed among the beams, the columns and the floor. The installation of light partition plate is according to outer wall position installation outer wall wallboard, and the principle of interior wall partition plate is installed at interior wall position, and interior wall partition plate installation is arranged according to the distribution and the direction of the structure post that has installed, lets the rib of structure post hide in partition plate, forms stealthy post to reach pleasing to the eye effect.
With the installation of the partition wall board, the building structure of one floor is built. More than two floors are constructed according to the method, and the house is completely constructed.
1. The integral scheme of house construction:
firstly, mounting prefabricated steel-concrete columns on a house foundation, wherein the prefabricated steel-concrete columns comprise rectangular columns 10, T-shaped columns 11, L-shaped columns 12 and square columns 13, the square columns 13 are hollow columns which are sleeved on a reinforcement cage, and reinforcing steel bars 5 are exposed at the upper ends of the square columns, as shown in figure 1; the rectangular column 10 is similar to the T-shaped column 1 in structure and processing mode, but the shape of the steel plate is different, and the cross section of the rectangular column is a solid or hollow column inside; the round column is similar to the square column 13 in function and function, and can be replaced with each other according to the field requirement.
And secondly, mounting a prefabricated steel-concrete beam on the prefabricated steel-concrete column, wherein the prefabricated steel-concrete beam adopts a structural hollow beam 14, as shown in figure 2.
Thirdly, mounting floor support plates 15 among the prefabricated steel-concrete beams, wherein the floor support plates 15 are light floor support plates, as shown in fig. 3.
Fourthly, after the frame is completed, the partition boards 16 are installed among the beams, the columns and the floor, and the partition boards 16 are light partition boards, as shown in fig. 4.
2. Partition plate technical scheme
Partition boards have become more and more widely used as internal partitions for buildings instead of red bricks and building blocks, and partition boards of various materials and different processes are widely used. The partition board produced by the scheme has the advantages of light weight, high strength, water resistance, fire resistance, sound insulation, heat insulation, simple production process, less equipment investment and easy popularization.
As shown in figures 5-8, the scheme adopts a light partition board combining steel battens, iron nets, foam and high-performance cement composite mortar, and the partition board 16 has the length of 3000mm, the width of 600mm and the thickness of 60-100 mm. The concrete components are steel fillets with C-shaped grooves pressed by steel sheets, a steel wire mesh with more than one centimeter of aperture, a pressed foam board with edge grooves and high-performance cement composite mortar.
The steel fillet is a C-shaped steel fillet 1 formed by pressing steel into a C-shaped groove, the thickness of the steel is 0.5-1mm, the width of the C-shaped steel fillet 1 is 30-50mm, the height of the C-shaped steel fillet is 10-15mm, and the folded edge is 3-5 mm.
The steel wire mesh 4 is a galvanized electric welding mesh with the wire diameter of about 0.5-1mm and the aperture of about 10-20 mm.
The foam is a foam board 9 with a corrugated edge groove, which is pressed by EPS \ XPS \ SEPS foam.
The high-performance cement composite mortar 8 is prepared by doping polypropylene fibers, an expanding agent, a water reducing agent, and superfine admixtures such as silica fume, fly ash and the like into common cement mortar. The high-performance cement composite mortar 8 not only has very high tensile strength and compressive strength, but also has good bonding strength and toughness. Compared with common cement mortar, the high-performance cement composite mortar has the characteristics of good water retention, fluidity and working degree before curing and high compressive and tensile strength after hardening.
The specific implementation mode is as follows: firstly, the glass fiber is pasted on the pressed foam board, and the effect of the glass fiber is to ensure that cement mortar can be firmly connected with the foam board. And then cement mortar is smeared in the edge grooves and two sides of the pressed foam board, pressed C-shaped steel fillets are embedded in the mortar of the edge grooves and the grooves on the two sides of the foam board, a steel wire mesh is laid, anti-crack cement mortar is laid on the foam board through a grout passing machine, and the finished specification and shape of the wallboard are pulled out to form one surface of the partition board. And after one surface is solidified, finishing the manufacture of the other surface of the partition board by the same method.
3. Technical scheme for prefabricating steel-concrete column and prefabricated steel-concrete beam
The steel-concrete composite structure is an important structural form developed after a steel structure and a concrete structure, and the composite structure can integrate the advantages of the steel structure and the concrete structure through a reasonable combination mode. The prefabricated steel-concrete column is a novel building component, and can greatly improve the strength of the building component, reduce the weight of the building component and improve the production efficiency. The advantages of high bearing capacity, high rigidity, good anti-seismic performance, rapid and convenient construction, steel consumption saving and the like are achieved.
The concrete implementation of the prefabricated steel-concrete column and beam is that the steel skeleton is welded by utilizing section steel or steel plates, and then concrete is poured on, around or in the steel skeleton, so that the section steel and the concrete form a structure which is stressed and deformed coordinately together. The steel and concrete structures are made into prefabricated building components, so that the weight problem of the structural components is solved, and the firmness problem of combination of the steel plates and the concrete is solved.
In order to solve the weight problem of a prefabricated structural member, the weight of a steel plate must be reduced, the thickness of concrete is reduced, the cost of the prefabricated structural member is reduced, a thin steel plate and the thin concrete are firmly connected, the strength is increased, a method for pouring concrete by reinforcing the steel plate through a steel fillet is provided, and the problem can be solved.
The steel concrete composite member with the prefabricated steel battens is divided into a prefabricated steel-concrete solid column and a hollow column,
the prefabricated steel-concrete solid column comprises a T-shaped column, an L-shaped column and a rectangular column.
The prefabricated steel-concrete hollow column comprises: square cavity columns and circular cavity columns.
The processing method of the solid column comprises the following steps of; the steel plate is firstly pressed according to the specification and the shape of a prefabricated part, in order to enhance the stress strength of the steel plate, the longitudinal outer edge of the steel plate is folded into a rib edge, pressed steel fillets are welded on two surfaces of the steel plate, the steel fillets are hollow C-shaped grooves, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the opening C-shaped notches of the steel fillets can play a role in riveting a steel skeleton and concrete. And welding a horizontal fillet at intervals of fifty centimeters or so on the longitudinal fillets to form the anchor ear so as to form the grid steel skeleton. And placing the manufactured steel skeleton into a mold for pouring a concrete member, firmly fixing, pouring fine aggregate concrete, and removing the mold after the concrete is cured and solidified to finish the manufacture of the solid column.
The hollow column is produced through setting longitudinal and transverse steel ribs in the outer frame of pressed steel plate cavity, setting in prefabricated mold, pouring fine aggregate concrete, curing and demolding.
As shown in fig. 25-28, the components of the hollow beam 14 include: the processing method of the C-shaped steel batten 1, the pressed steel plate 62, the concrete 3 and the batten hoop 64 is basically the same as that of the hollow column.
4. Floor support plate technical scheme
Along with the attach importance to and popularization of prefabricated construction in China, the building carrier plate is as the major component part of prefabricated construction, and market is bigger and bigger, and traditional building carrier plate is mainly the popular PC superimposed sheet on the market at present, but the PC superimposed sheet is from great, and every square meter is heavy 150 kilograms, and the installation needs to select hoisting equipment of great tonnage for use, and many people cooperate its construction, leads to the cost of manual work and machinery to be high, and the piece seam precision of board is low moreover, often needs local benefit to establish the template. Although the PC laminated plate is prefabricated in a factory, the production speed is low, the PC laminated plate can only be customized, and the size can not be changed by field cutting. The stacking layer number of the plates is small, the occupied stacking area is large, the investment on equipment and a field is extremely large, and the plate stacking machine can be used by non-ordinary small companies. Because the PC laminated plate is heavy and the number of the stacked layers is small, a large vehicle can not pull several blocks, the transportation cost is very high, and the large-area popularization and use are not facilitated.
In order to solve the problems, a light floor support plate which is light in weight, cuttable, simple in production process, free of large-scale hoisting equipment and convenient to install is provided; a light floor bearing plate combining a strong rib steel mesh cement plate and a steel bar truss. As shown in fig. 29-33, the deck 15 is constructed by: l-shaped steel battens 71, a steel wire mesh 74, steel bars 75, a mould 76, a steel bar truss 77, cement mortar 78 and a foam board 79.
The steel bar truss is a commonly used reinforcing structure in precast concrete members and is generally formed by welding an upper dazzling steel bar, two lower dazzling steel bars and two side web member steel bars. Typically by a numerically controlled automated bar truss production line.
The reinforced steel mesh cement board is produced and manufactured by steel meshes, reinforcing steel bars, ribs pressed by iron sheets and high-performance cement composite mortar through a mould.
The reinforced steel mesh cement board is a rectangular board with standard specification and size, the length of the reinforced steel mesh cement board is 3000mm, the width of the reinforced steel mesh cement board is 600mm, the thickness of the reinforced steel mesh cement board is 12mm temporarily, rib edges with the width of 30mm are arranged on two sides of the wide edge of the cement board, ribs pressed by iron sheets are embedded in the rib edges, and the strength of the rib edges is improved. The steel wire mesh is laid in the plate, the steel wire mesh is a galvanized electric welding mesh with the wire diameter of about 0.5-1mm and the aperture of 10-20mm,
the steel fillet is an L-shaped steel fillet with an L-shaped groove formed by pressing steel skins, the thickness of the iron sheet is 0.5-1mm, the width of the wide side of the L-shaped steel fillet is 25-35mm, the height is 20-25mm, and the width of the narrow side is 8-12 mm.
In order to achieve the effect of high plate thickness and strength, a plurality of six-centimeter steel bars are placed into the rib edges and fixed on the plate surface in production by utilizing the height difference between the rib edges and the plate surface to form continuous stress points, so that the high-strength steel mesh cement plate and the steel bar truss can be conveniently connected together in a welding mode.
Although the specifications of the reinforced rib cement slabs are fixed, the lengths of the steel bar trusses can be set on site, the reinforced bar trusses with the set lengths are utilized, the reinforced rib steel mesh cement slabs can be made into light floor bearing plates meeting the requirements of site construction through simple cutting and bonding, and then concrete is poured to complete floor construction.
The light floor bearing plate combining the strong rib steel mesh cement plate and the steel bar truss is simple in production process, convenient and safe to install and convenient to transport. Particularly, the two materials are connected in a welding mode, the method is simple and feasible, the two materials can be separately transported, the transportation efficiency is greatly improved, the transportation cost is reduced, and the method is favorable for large-area popularization and use.
The present invention is not limited to the above-mentioned best mode, and any other products similar or identical to the present invention, which can be obtained by anyone under the teaching of the present invention, all fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a house that prefabricated steel-concrete beam, post, floor combine which characterized in that: the house is formed by assembling prefabricated steel-concrete columns, prefabricated steel-concrete beams, floor bearing plates and/or partition plates on a house foundation; the prefabricated steel-concrete column and the foundation are connected into a whole through a steel bar cage and a connecting iron member to form a structural upright column of a first floor of the house; the prefabricated steel-concrete beam integrally connects the top ends of the prefabricated steel-concrete columns to form a structural beam of a first floor of the house; the column, the beam and the floor bearing plate are firmly fixed through the supporting system to form a stable house frame structure, partition boards are arranged among the beam, the column and the floor bearing plate, the structure is stabilized through pouring concrete, and the steel bar cage and the connecting iron member are protected; so as to form a multi-storey building.
2. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 1, characterized in that: the prefabricated steel-concrete column is a structure which is formed by welding profile steel or steel plates into a steel skeleton and then pouring composite concrete on, around and/or in the steel skeleton, so that the profile steel and the concrete form a whole body and are stressed and deformed cooperatively.
3. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 2, characterized in that: the prefabricated steel-concrete column is an L-shaped column, and the L-shaped column (12) comprises: the steel bar reinforced concrete composite material comprises C-shaped steel battens (1), L-shaped steel plates (32), concrete (3) and an L-shaped hoop (34); c-shaped steel fillets (1) are welded on each longitudinal plane of the L-shaped steel plate (32) at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets (1); a transverse L-shaped anchor ear (34) is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; wrapping a layer of concrete (3) on the outer layer of the latticed steel skeleton, and enabling the concrete (3) to penetrate into gaps of all parts of the latticed steel skeleton; the steel fillet (1) is a hollow C-shaped groove, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the opened C-shaped notch of the steel fillet can play a role in riveting a steel skeleton and concrete; the L-shaped anchor ear (34) is formed by processing hollow C-shaped channel steel fillets and is attached to the back of the steel fillet (1).
4. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 2, characterized in that: the prefabricated steel-concrete column is a T-shaped column, and the T-shaped column (11) comprises: the steel bar reinforced concrete composite floor slab comprises C-shaped steel battens (1), T-shaped steel plates (42), concrete (3) and T-shaped hoops (44); c-shaped steel fillets (1) are welded on each longitudinal plane of the T-shaped steel plate (42) at intervals, and the steel plates are attached to the backs of the C-shaped steel fillets (1); a transverse T-shaped hoop (44) is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete (3) is wrapped on the outer layer of the latticed steel skeleton, and the concrete (3) penetrates into gaps of all the parts of the latticed steel skeleton; the steel fillet (1) is a hollow C-shaped groove, the back-attached steel plate plays a role in reinforcing the main steel plate, and meanwhile, the opened C-shaped notch of the steel fillet can play a role in riveting a steel skeleton and concrete; the T-shaped anchor ear (44) is formed by processing hollow C-shaped channel steel fillets and is attached to the back of the steel fillet (1).
5. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 2, characterized in that: the prefabricated steel-concrete column is a hollow circular column, and the circular column comprises: the steel bar concrete formwork comprises C-shaped steel battens (1), round steel plates (22), concrete (3) and round hoops (24); c-shaped steel fillets (1) are welded on the longitudinal outer plane of the circular steel plate (22) at intervals, and the steel plate is attached to the back of each C-shaped steel fillet (1); a transverse round hoop (24) is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete (3) is wrapped on the outer circle surface of the latticed steel skeleton, and the concrete (3) penetrates into gaps of all the components of the latticed steel skeleton; the steel fillet (1) is a hollow C-shaped groove, the round anchor ear (24) is formed by processing hollow C-shaped channel steel fillet, and the back of the round anchor ear is attached with the steel fillet (1).
6. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 2, characterized in that: the prefabricated steel-concrete column is a hollow square column, and the square column (13) comprises: the steel bar concrete pile comprises C-shaped steel battens (1), square steel plates (52), concrete (3) and square anchor ears (54); c-shaped steel fillets (1) are welded on the longitudinal outer plane of the square steel plate (52) at intervals, and the steel plate is attached to the back of each C-shaped steel fillet (1); a transverse square hoop (54) is welded on each longitudinal fillet at intervals of about 500mm to form a grid steel skeleton; a layer of concrete (3) is wrapped around the latticed steel skeleton, and the concrete (3) penetrates into gaps of all the components of the latticed steel skeleton; the square anchor ear is characterized in that the steel fillet (1) is a hollow C-shaped groove, the square anchor ear (54) is formed by processing the hollow C-shaped channel steel fillet, and the back of the square anchor ear is attached to the steel fillet (1).
7. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 2, characterized in that: the precast steel-concrete beam is a hollow beam (14) comprising: the steel bar concrete pile comprises C-shaped steel battens (1), a pressed steel plate (62), concrete (3) and a batten hoop (64); the pressed steel plate (62) is formed by folding the longitudinal outer edge of a groove-shaped steel plate into a rib, C-shaped steel fillets (1) are welded on the longitudinal outer plane of the pressed steel plate (62) at intervals, and the steel plate is attached to the back of each C-shaped steel fillet (1); a transverse fillet hoop (64) is welded on each longitudinal fillet at intervals of about 500mm to form a grid-shaped steel skeleton; a layer of concrete (3) is wrapped on the three outer layers of the latticed steel skeleton, and the concrete (3) penetrates into gaps of all the parts of the latticed steel skeleton; the steel fillet (1) is a hollow C-shaped groove, and the fillet hoop (64) is formed by processing hollow C-shaped channel steel fillets and is attached to the back of the steel fillet (1).
8. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 1, characterized in that: the partition board (16) is a light partition board, and comprises: c-shaped steel battens (1), a steel wire mesh (4), cement composite mortar (8) and a foam board (9); glass fiber nets are adhered to the pressed foam boards (9), cement mortar is smeared in the edge grooves and the two sides of the pressed foam boards (9), C-shaped steel edge strips (1) of the pressed C-shaped grooves are embedded in the mortar of the edge grooves and the grooves of the two sides of the foam boards, steel wire meshes (4) are paved on the outer layers, and anti-crack cement composite mortar (8) is paved on the outer layers of the foam boards (9) paved with the steel wire meshes (4) through a mortar passing machine.
9. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 1, characterized in that: the floor bearing plate (15) is a light floor bearing plate, and the light floor bearing plate consists of a steel bar truss (77) and a strong rib steel mesh cement plate;
the steel bar truss (77) is a precast concrete member of a reinforced structure and is formed by welding an upper dazzle steel bar, two lower dazzle steel bars and two side web member steel bars;
the strong rib steel mesh cement board comprises: the steel bar reinforced concrete composite concrete slab comprises L-shaped steel battens (71), a steel wire mesh (74), steel bars (75), a steel bar truss (77) and cement composite mortar (78); the bottom layer of the strong rib steel mesh cement board is a cement composite mortar (78) layer, a steel wire mesh (74) is laid on the middle layer of the cement composite mortar (78), rib edges of 30mm are arranged on two sides of the wide edge of the strong rib steel mesh cement board, and L-shaped steel fillets (71) are embedded in the rib edges to increase the strength of the rib edges; a plurality of steel bars (75) are uniformly distributed above the cement composite mortar (78) layer, rib edges are arranged at two ends of the steel bars (75) and are fixed above the cement composite mortar (78) layer to form continuous stress points, steel bar trusses are welded on the steel bars (75), and the steel bar trusses and the steel mesh cement plate with the strong ribs are connected together;
the L-shaped steel fillet (71) is a fastener which is formed by pressing steel sheets with the thickness of 0.5-1mm into an L-shaped groove, namely the L-shaped steel fillet (71), the width of the lower edge of the L-shaped steel fillet (71) is 25-35mm, the height of the L-shaped steel fillet is 20-25mm, and the width of the upper edge of the L-shaped steel fillet (71) is 8-12 mm;
the steel wire mesh (74) is a galvanized electric welding mesh with the wire diameter of about 0.5-1mm and the hole diameter of 10-20 mm.
10. A prefabricated steel-concrete beam, column, floor-integrated house according to claim 8 or 9, wherein: the cement composite mortar is prepared by doping polypropylene fiber, an expanding agent, a water reducing agent, silica fume and fly ash ultrafine admixture into common cement mortar.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027498A (en) * | 2023-10-10 | 2023-11-10 | 福建建工装配式建筑研究院有限公司 | Residential building structure with floor system free of supporting and construction method thereof |
| CN117306684A (en) * | 2023-11-29 | 2023-12-29 | 中国船舶集团国际工程有限公司 | Box board assembled steel structure-concrete composite floor support plate combined building structure system |
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2021
- 2021-04-16 CN CN202120784207.8U patent/CN215053993U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027498A (en) * | 2023-10-10 | 2023-11-10 | 福建建工装配式建筑研究院有限公司 | Residential building structure with floor system free of supporting and construction method thereof |
| CN117027498B (en) * | 2023-10-10 | 2023-12-08 | 福建建工装配式建筑研究院有限公司 | Residential building structure with floor system free of supporting and construction method thereof |
| CN117306684A (en) * | 2023-11-29 | 2023-12-29 | 中国船舶集团国际工程有限公司 | Box board assembled steel structure-concrete composite floor support plate combined building structure system |
| CN117306684B (en) * | 2023-11-29 | 2024-02-27 | 中国船舶集团国际工程有限公司 | Box board assembled steel structure-concrete composite floor support plate combined building structure system |
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Effective date of registration: 20231226 Address after: 571100 19 # -1, Dalu Village, Hongxing Village Committee, Fengxiang Street, Qiongshan District, Haikou City, Hainan Province Patentee after: Hainan Net Carbon Pre Villa Development and Construction Co.,Ltd. Address before: 570000 No.32, xiaxian'er village, Haifu Yiheng Road, Meilan District, Haikou City, Hainan Province Patentee before: Luo Jianyue |