CN211873306U

CN211873306U - Combined floor structure and residential system with combined structure

Info

Publication number: CN211873306U
Application number: CN202020160715.4U
Authority: CN
Inventors: 龚超; 梁伟桥; 姚志东; 刘晓刚; 王晓峰
Original assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; China Jingye Engineering Corp Ltd
Current assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; China Jingye Engineering Corp Ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-11-06
Anticipated expiration: 2030-02-11

Abstract

The utility model provides a combination superstructure structure and integrated configuration house system thereof belongs to building technical field. The utility model discloses a composite floor structure, which comprises a composite steel beam and a concrete floor slab; the combination girder steel includes: the first T-shaped steel, the supporting steel bar piece and the second T-shaped steel are sequentially connected, and a plurality of gaps are formed in the supporting steel bar piece; the concrete floor includes: superimposed sheet, packing box, roof reinforcing bar and concrete layer, superimposed sheet and second T shaped steel are connected, fill the box and set up on superimposed sheet, and the roof reinforcing bar sets up on superimposed sheet, and the space is worn to locate by concrete layer for fixed combination girder steel, superimposed sheet, packing box and roof reinforcing bar. The steel beam and the concrete floor are integrated, the problems of exposure of the steel beam and high cost of corrosion and fire prevention are solved, the cost of corrosion and fire prevention is saved, the on-site efficient assembly construction is realized, and the stress performance, the service performance, the economic performance and the durability of the assembly type steel structure building are improved.

Description

Combined floor structure and residential system with combined structure

Technical Field

The utility model belongs to the technical field of the building technique and specifically relates to a combination superstructure structure and integrated configuration house system thereof is related to.

Background

At present, a cast-in-place concrete shear wall residential structure is the mainstream of the current residential building in China, but the cast-in-place structure has the defects of more field wet operation, low production efficiency, resource waste, environmental pollution, incapability of realizing four-section one-environment protection and the like, and is difficult to adapt to the development requirement of the modernization of the building industry.

The steel structure residential building has many characteristics inherently superior to reinforced concrete buildings, but exists in popularization and application, particularly in the industrialization process: (1) cast-in-place concrete shear wall house has perfect house type design, and steel structure house generally converts the beam column into the steel by the concrete on the basis of concrete house type, and the product lacks the theory innovation, has the problem that the beam column exposes, influences service function and sight. (2) The advantages of earthquake resistance and energy consumption of the pure steel structure system and the connection nodes thereof in the strong earthquake area are not well exerted in the design of the actual engineering, and the weakness of poor corrosion resistance and fire resistance of the steel members is more prominent in residential buildings. In addition, the problem that the effective period of the anti-corrosion fireproof coating is not matched with the service life of the structure exists, and an effective solution is still lacked for how to treat the anti-corrosion fireproof coating after the effective period of the anti-corrosion fireproof coating is expired.

The traditional composite floor system is widely applied to public buildings due to the advantages of reasonable stress, good economy, high construction speed and the like, and the composite floor system usually adopts metal profiled steel plates (or open profiled steel plates, necking profiled steel plates, closed profiled steel plates and the like), the metal profiled steel plates are placed on the first flange of the steel beam, and the metal profiled steel plates and the first flange of the steel beam realize the common work through the studs arranged on the first flange of the steel beam. In a steel structure residential building, the metal profiled steel sheet composite floor system has poor applicability due to the fact that a ceiling is required to be made because the second flange is uneven, the cost of corrosion prevention and fire prevention caused by exposure of steel beams is high, the appearance is influenced and the like, and the problems that steel beams are exposed still exist in the existing cast-in-place concrete floor, steel bar truss floor bearing plates, truss reinforced concrete composite floor plates, prestressed concrete composite slabs, prestressed concrete hollow floor plates and the like which are mostly applied at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a composite floor constructs and integrated configuration house system thereof to the exposed technical problem of steel beam among the composite floor who exists among the solution prior art.

In order to solve the technical problem, the utility model provides a composite floor structure in a first aspect, which comprises a composite steel beam and a concrete floor slab;

the combination girder steel includes: the first T-shaped steel, the supporting steel bar piece and the second T-shaped steel are sequentially connected, and a plurality of gaps are formed in the supporting steel bar piece;

the concrete floor includes: superimposed sheet, packing box, roof reinforcing bar and concrete layer, the superimposed sheet with second T shaped steel is connected, the packing box set up in on the superimposed sheet, the roof reinforcing bar sets up on the superimposed sheet, concrete layer wears to locate the space is used for fixing the combination girder steel the superimposed sheet the packing box with the roof reinforcing bar.

In addition, according to the utility model discloses a combination superstructure structure still can have following additional technical characterstic:

in some embodiments of the present invention, the second T-section includes a second flange and a lower connecting member, the first T-section includes a first flange and an upper connecting member, and the support reinforcing members are connected to the lower connecting member and the upper connecting member, respectively; the superimposed sheet with the second flange is connected.

In some embodiments of the present invention, the width of the second flange is greater than the width of the first flange.

In some embodiments of the utility model, the superimposed sheet includes prefabricated bottom plate and steel bar truss, steel bar truss set up in on the prefabricated bottom plate, prefabricated bottom plate with second T shaped steel is connected, it is adjacent that the packing box is located between the steel bar truss.

In some embodiments of the present invention, the concrete floor further comprises an overlap steel bar, the overlap steel bar is disposed through the gap and the steel bar truss fixed connection.

In some embodiments of the present invention, the combined steel beam further comprises a stud, and the roof reinforcement is fixed on the first T-section steel through the stud.

In some embodiments of the present invention, the second T-shaped steel bottom is provided with a net-hanging plastering layer.

In some embodiments of the present invention, the supporting steel bar member is an M-shaped steel bar member, the M-shaped steel bar member includes two M-shaped steel bars correspondingly disposed, and the first T-section steel and the second T-section steel are located between adjacent M-shaped steel bars; the M-shaped steel bar is bent to form a plurality of gaps, and the gaps are M-shaped.

The utility model discloses an on the other hand has still provided the construction method of a combination superstructure, the construction method of combination superstructure has above-mentioned combination superstructure structure, and concrete step is:

s1, fixing the combined steel beam;

s2, hoisting the laminated slab, and placing the laminated slab on a second flange of the second T-shaped steel;

s3, installing overlap steel bars, and connecting the overlap steel bars penetrating through the gaps of the support steel bar pieces with the steel bar truss of the laminated floor slab;

s4, installing a filling box body, and arranging the filling box body between the adjacent steel bar trusses of the laminated floor slab;

and S5, installing a roof steel bar, fixing the roof steel bar on the first T-shaped steel, and pouring post-cast concrete.

In some embodiments of the present invention, before the S1, the method further includes the following steps:

s01, arranging a temporary support at the bottom of the second T-shaped steel of the combined steel beam; the step S5 is followed by: and removing the temporary support in the S01 by using a suspended net plastering layer.

Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model provides a combination superstructure structure, concrete layer wears to locate the space is used for fixing the combination girder steel the superimposed sheet the packing box with the roof reinforcing bar, girder steel and concrete floor integration have solved the girder steel and have exposed and the high problem of anticorrosive fire prevention expense, have saved anticorrosive fire prevention expense, and the construction of on-the-spot high-efficient assembly improves atress performance, economic performance and the durability of assembled steel construction building.

The third aspect, the utility model also discloses a integrated configuration house system with above-mentioned combination superstructure structure, include: the composite floor slab comprises a cross beam, a column body, a shear wall, the composite floor slab and a cantilever slab;

in a horizontal projection plane, the combined floor is arranged indoors, and the cantilever plate is arranged outdoors; the combined floor system is connected with the cantilever plate through a cold and heat bridge prevention node; the cold and heat bridge prevention node comprises a sandwich plate, a first steel bar base plate and a second steel bar base plate;

the sandwich plate comprises a first metal panel, a second metal panel, a plurality of node connecting pieces, an annular sealing plate and a heat insulating material; the annular sealing plate is fixedly connected between the first metal panel and the second metal panel which are oppositely arranged, and surrounds the first metal panel and the second metal panel to form a sealed cavity; one end of the node connecting piece is fixedly connected with the first metal panel, the other end of the node connecting piece is fixedly connected with the second metal panel, and the node connecting piece is arranged in the sealed cavity; the heat insulation material is filled in the sealed cavity;

the surface of one side, away from the second metal panel, of the first metal panel is welded with the first reinforcing steel bar base plate, and a plurality of floor reinforcing steel bars which extend towards the indoor side and enter the composite floor are welded on the first reinforcing steel bar base plate;

the second metal panel deviates from the surface of one side of the first metal panel is welded with a second steel bar base plate, and a plurality of cantilever plate steel bars which extend to the outdoor side and enter the cantilever plate are welded on the second steel bar base plate.

The cantilever plate can be a cantilever balcony, a cantilever air-conditioning plate, a rain shielding plate and other members.

Preferably, the node connecting piece is a connecting pipe, a connecting rod, a honeycomb plate or a corrugated plate;

when the node connecting piece is a connecting pipe, heat insulation materials are filled in the connecting pipe.

Preferably, the node connectors and the annular sealing plates are made of fibre reinforced composite material or plastic. And preferably, the heat insulating material is rock wool or foamed polyurethane.

Preferably, the first metal panel is a carbon structural steel plate, a low-alloy high-strength structural steel plate or a stainless steel plate; the second metal panel is a carbon structural steel plate, a low-alloy high-strength structural steel plate or a stainless steel plate.

Preferably, the annular sealing plates comprise a bottom surface sealing plate, a first side surface sealing plate, a top surface sealing plate and a second side surface sealing plate which are sequentially connected end to end along the circumferential direction; the bottom surface sealing plate and the top surface sealing plate are oppositely arranged; the first side face sealing plate and the second side face sealing plate are arranged oppositely; the reinforcing steel bars are threaded reinforcing steel bars.

During construction, the first metal panel, the second metal panel, the plurality of node connecting pieces and the annular sealing plate are fixedly connected together, and process holes are reserved on the annular sealing plate;

respectively welding steel bar base plates on the first metal panel and the second metal panel;

welding reinforcing steel bars on each reinforcing steel bar base plate;

placing the steel bar positioned on one side of the first metal panel or the second metal panel into a template (a composite floor or a cantilever template);

binding steel bars on the steel bars in the template to form a steel bar framework;

pouring concrete into the template;

filling a heat insulating material into the sealed cavity through the fabrication hole, and extruding and compacting;

and (4) plugging the process holes to form the prefabricated part with the cold and heat bridge preventing node for the composite floor.

The cold and heat bridge prevention node of the floor system structure has the characteristics of simple and convenient construction and small field workload; the heat insulation materials such as rock wool and foamed polyurethane are filled in the middle of the sandwich plate, and meanwhile, the heat insulation materials are embedded into the sealed cavity of the sandwich plate, so that the sandwich plate is prevented from forming a heat bridge, namely a bridge cut-off structure is formed between the composite floor system and the cantilever plate on the indoor side and the outdoor side, the heat insulation effect is good, the heat insulation materials are good in durability, and no falling risk exists; the reinforcing bar passes through the reinforcing bar backing plate and welds on metal decking to be fixed with a plurality of nodal connection pieces between metal decking, thereby make the structural strength height and the atress performance of anti cold and hot bridge node good.

Further, the column body comprises a round steel pipe and a plurality of T-shaped steels; concrete is poured in the circular steel tube, the T-shaped steels are arranged at intervals along the circumferential direction of the circular steel tube, and one ends, opposite to the web plate and the flange, of the T-shaped steels are fixedly connected with the outer wall of the circular steel tube; the web of the T-shaped steel is located on the diameter extension line of the circular steel tube, and the flange is provided with a bolt hole.

Furthermore, the number of the T-shaped steel is two, and webs of the two T-shaped steel are located on the same diameter of the round steel pipe to form a straight line shape.

Furthermore, the number of the T-shaped steels is more than 3, and the T-shaped steels are uniformly distributed at intervals in the circumferential direction of the circular steel tube.

Further, the number of the T-shaped steel is two, and webs of the two T-shaped steel are perpendicular to form an L shape; or the number of the T-shaped steels is three, and webs of the three T-shaped steels are arranged in a T shape; or, the number of the T-shaped steel is four, and webs of the T-shaped steel are arranged in a cross shape.

Furthermore, a first circular exhaust hole is formed in the position, close to the outer wall of the round steel pipe, of the round steel pipe along the axial direction of the round steel pipe; the diameter of the first circular vent hole is larger than or equal to 12 mm.

The utility model provides a cylinder comprises circular steel tube and a plurality of T shaped steel, and the circular steel tube concrete is located near the main bearing axle power of neutralization axle, and the advantage that full play circular steel tube concrete axle pressure mechanical properties is good, and the neutralization axle setting in the T shaped steel was kept away from, and the arm of force increases, and the bending resistance bearing capacity improves greatly to improve bending resistance mechanical properties greatly. Simultaneously, T shaped steel is located the outside and is convenient for connect, has realized beam column node, post and the vertical concatenation node full bolted connection of post, also promptly, and the cylinder all passes through bolted connection with girder steel and upper and lower post. And during connection, the steel column can be prevented from being exposed outside the wall body, and the aim of hiding the column in the wall body is fulfilled.

Further, the device also comprises a constraint support; two ends of the constraint support are respectively and fixedly connected with the middle part of the column body and the middle part of the cross beam;

the restraint support comprises an outer restraint sleeve, an inner core, a restraint ring and a restraint rod which are all arranged in the outer restraint sleeve;

the restraint rod and the inner core are arranged along the length direction of the outer restraint sleeve, and the restraint ring is fixed with the outer restraint sleeve and sleeved outside the inner core and the restraint rod so as to fix the inner core and the restraint rod.

Further, the inner core is in a strip plate shape; the two sides of the inner core are provided with the restraint rods; or, the inner core is a long strip with a cross-shaped section, and the four cross-shaped intervals are provided with the restraint rods.

Further, the restraint ring comprises a plurality of annular restraint reinforcing steel bars sleeved outside the inner core and the restraint rods; and the annular constraint steel bars are sequentially arranged at intervals along the length direction of the constraint rod.

Further, the restraint ring is an annular restraint reinforcing steel bar spirally wound outside the inner core. Wherein, the annular restraint reinforcing bar is preferably smooth round reinforcing bar.

Further, the restraint rods are steel rods; and the steel bar is welded and fixed with the plain round steel bar.

Further, an anti-friction layer is arranged between the restraint rod and the inner core so as to reduce the frictional resistance between the restraint rod and the inner core.

Furthermore, the outer constraint sleeve is made of mortar, and a reinforcing structure is arranged in the outer constraint sleeve; the reinforcing structure is a steel wire mesh or a glass fiber mesh; the steel wire mesh or the glass fiber mesh is arranged along the circumferential direction of the outer constraint sleeve.

Furthermore, the two ends of the inner core are respectively provided with a connecting end extending out of the outer restraining sleeve; the width of the connecting end is larger than the width of the inner core in the outer constraint sleeve (the middle width of the inner core); the connecting end is provided with a mounting hole. The constraint support piece is respectively connected with the cross beam and the column body through mounting holes in the connecting end.

The utility model provides a bucking restraint is supported, about bar and about collar restraint inner core bucking, the local bucking of restriction inner core to can give full play to the performance of core, simultaneously, add man-hour only need with the restraint ring cover at inner core and about bar outside fixed can, the requirement is low, this operation does not need special mill's processing, consequently processing is simple and convenient, easily operation. The restraint rods are steel rods, the inner cores are steel cores, the restraint rings are made of round optical steel bars which are common materials, and therefore cost is low and economical efficiency is good. The outer constraint sleeve is made of mortar, so that the buckling restrained brace is prevented from being corroded, and the outer constraint sleeve is free of maintenance in the service life.

Furthermore, the flange of the T-shaped steel close to the outdoor side in the column body is an outer side flange, and the outer side flange is arranged in parallel with the wall surface of the wall body; the outer side end surface of the outer side flange is coated with an outer anticorrosive layer; and a plurality of layers of glass wool boards are laid on the outer side of the anticorrosive layer of the outer side flange and used for blocking the heat flow transmitted between the indoor side and the outdoor side of the wall body by the cylinder body as a heat bridge.

The heat bridge effect at the column is effectively eliminated, the overall heat insulation performance of the building is improved, and meanwhile, the influence of external temperature change on the outer anticorrosive coating can be effectively weakened by the plurality of layers of glass wool boards; the effective anticorrosion period of the anticorrosion layer is prolonged.

Furthermore, a flange of the T-shaped steel close to one indoor side in the column body is an inner side flange, the inner side flange is arranged in parallel with the wall surface of the wall body, and an inner anticorrosive layer is coated on the outer side surface of the inner side flange; and no thermal insulation material is laid outside the inner anti-corrosion layer of the inner flange.

Because the indoor humiture changes less, and is comparatively stable, be favorable to the inner anticorrosive coating to keep effective for a long time from this, utilize the heat bridge effect of cylinder self, and combine the cotton board of glass outside the outside edge of a wing to block the heat bridge to weaken the temperature variation fluctuation of outside edge of a wing outer anticorrosive coating department greatly, thereby prolong the effective life-span of outer anticorrosive coating more effectively, thereby improved the corrosion resisting property of cylinder on the whole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 schematically shows a schematic view of a composite floor construction according to embodiment 1 of the present invention;

figure 2 schematically shows a schematic front view of a composite steel beam in a composite floor construction according to embodiment 1 of the present invention;

figure 3 schematically shows a schematic side view of a composite steel beam in a composite floor construction according to embodiment 1 of the present invention;

fig. 4 schematically shows a flow chart of a construction method of a composite floor according to the embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a floor in embodiment 2 of the present invention;

fig. 6 is a schematic structural view of a cold and hot bridge prevention node in embodiment 2 of the present invention;

fig. 7 is a schematic structural view of the ring-shaped sealing plate in embodiment 2 of the present invention;

FIG. 8 is a schematic view showing the arrangement of the constraining supports in example 3;

FIG. 9 is a cross-sectional view AA in FIG. 8;

FIG. 10 is a side view of a cruciform inner core 62 of example 3;

FIG. 11 is a cross-sectional view of FF in FIG. 9;

fig. 12 is a schematic structural view of a linear column provided in embodiment 4 of the present invention;

fig. 13 is a schematic structural view of a cross-shaped column provided in embodiment 4 of the present invention;

fig. 14 is a schematic structural view of an L-shaped column provided in embodiment 4 of the present invention;

fig. 15 is a schematic structural view of a T-shaped column provided in embodiment 4 of the present invention;

fig. 16 is a schematic view of a column bridge cut-off structure in embodiment 5 of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further explained with reference to specific embodiments.

Example 1

The utility model discloses a first aspect provides a combination superstructure structure, and this combination superstructure structure has solved the problem that dew roof beam and anticorrosive fire prevention expense are high.

As shown in fig. 1 to 3, the composite floor structure in the present embodiment includes a composite steel beam 5 and a concrete floor;

the composite steel beam 5 includes: the first T-shaped steel 2, the supporting steel bar piece and the second T-shaped steel 3 are sequentially connected, and a plurality of gaps are formed in the supporting steel bar piece;

the concrete floor includes: superimposed sheet, packing box 10, roof reinforcing bar 8 and concrete layer 11, superimposed sheet and second T shaped steel 3 are connected, fill box 10 and set up on superimposed sheet, and roof reinforcing bar 8 sets up on superimposed sheet, and concrete layer 11 wears to locate the space for fixed combination girder steel 5, superimposed sheet, packing box 10 and roof reinforcing bar 8.

The combined steel beam 5 and the concrete floor can work integrally, the spanning capacity of the combined floor is strong, and the large space of the combined floor is realized; the combined steel beam 5 can enable the concrete on two sides of the steel beam to be communicated, and the structural integrity is strong. The steel beam and the concrete floor are integrated, the problems of exposure of the steel beam and high cost of corrosion and fire prevention are solved, the cost of corrosion and fire prevention is saved, the on-site efficient assembly construction is realized, and the stress performance, the service performance, the economic performance and the durability of the assembly type steel structure building are improved.

The light filling box body 10 is arranged in the composite floor system, so that the self weight of the composite floor system is greatly reduced; the composite floor is made of laminated slabs, light filling boxes 10 produced by shaping, hot-rolled T-shaped steel and hot-rolled support steel bars, and the standardization degree is high.

In some embodiments of the present invention, the second T-section 3 includes a second flange 14 and a lower connecting member, the first T-section 2 includes a first flange 15 and an upper connecting member, and the support reinforcing members are connected to the lower connecting member and the upper connecting member, respectively; the laminate is connected to the second flange 14.

In some embodiments of the present invention, the width of the second flange 14 is greater than the width of the first flange 15. The width of the second flange 14 is 50mm-100mm greater than the width of the first flange 15. To facilitate the resting of the superimposed sheets.

The utility model discloses an in some embodiments, superimposed sheet includes prefabricated bottom plate 6 and steel bar truss 13, and steel bar truss 13 sets up on prefabricated bottom plate 6, and prefabricated bottom plate 6 is connected with second T shaped steel 3, fills box 10 and is located between the adjacent steel bar truss 13. The prefabricated floor 6 rests on the second flange 14.

The utility model discloses an in some embodiments, concrete floor still includes overlap joint reinforcing bar 9, and overlap joint reinforcing bar 9 wears to locate space and 13 fixed connection of steel bar truss. The lap-joint reinforcing steel bars 9 can play a role of a pin bolt, and the concrete layers 11 at two sides of the combined steel beam 5 are connected into a whole, so that the combined steel beam 5 and the concrete floor are connected into a whole conveniently.

In some embodiments of the present invention, the combined steel beam 5 further includes a stud 1, and the top plate steel bar 8 is fixed on the first T-shaped steel 2 through the stud 1. The top plate reinforcing steel bars 8 are fixed on the first flanges 15 through the studs 1, and the studs 1 and the lapping reinforcing steel bars 9 are arranged so that the combined steel beam 5 and the concrete floor can be connected into a whole, so that the combined steel beam 5 and the concrete floor act together, and the stress performance is good.

In some embodiments of the present invention, the bottom of the second T-section steel 3 is provided with a net-hanging plastering layer 12. Can increase inorganic dry powder anticorrosive coating in hanging net plastering layer 12, set up the anticorrosive performance that inorganic dry powder anticorrosive coating can increase combination girder steel 5 bottom. The inorganic dry powder anticorrosive layer is formed by adding flaky antirust filler into inorganic dry powder building paint.

In some embodiments of the present invention, the supporting steel bar member is an M-shaped steel bar member 4, the M-shaped steel bar member 4 includes two M-shaped steel bars correspondingly disposed, and the first T-section steel 2 and the second T-section steel 3 are located between adjacent M-shaped steel bars; m shaped steel muscle is buckled and is formed a plurality of spaces, and the space is the M type.

M shaped steel muscle sets up in the both sides of connecting piece and last connecting piece down, and M shaped steel muscle can be connected with first T shaped steel 2 and second T shaped steel 3 through welding mode. The M-shaped steel bar is formed by bending plain round steel bars or threaded steel bars.

As shown in fig. 4, the other aspect of the present invention further provides a construction method of a composite floor, the construction method of the composite floor has the above composite floor structure, and the concrete steps are as follows:

s1, fixing the combined steel beam 5;

s2, hoisting the laminated slab, and placing the laminated slab on a second flange 14 of the second T-shaped steel 3, wherein the connection length between the laminated slab and the second T-shaped steel 3 is not less than 25 mm; the connecting length is not less than 25mm, so that the laminated plate can not fall off from the second flange 14 of the second T-shaped steel 3 in the construction process and the use process, and the structure is safer.

S3, installing the overlap steel bars 9, and connecting the overlap steel bars 9 penetrating the gaps of the support steel bar pieces with the steel bar trusses 13 of the laminated floor slab;

s4, installing the filling box body 10, and arranging the filling box body 10 between the adjacent steel bar trusses 13 of the laminated floor slab;

and S5, installing the top plate steel bars 8, fixing the top plate steel bars 8 on the first T-shaped steel 2, and pouring post-cast concrete.

In some embodiments of the present invention, before S1, the method further comprises the following steps:

s01, arranging a temporary support at the bottom of the second T-shaped steel 3 of the combined steel beam 5; step S5 is followed by: the removal of the temporary support in S01 employs a suspended net render 12. And (3) dismantling the temporary support, and arranging a net hanging and plastering layer 12 at the gap between the bottom of the combined steel beam 5 and the prefabricated bottom plate 6 after pouring.

Set up the security of temporary support assurance combination girder steel 5 in the work progress, prevent that combination girder steel 5 warp too big in the work progress to bring adverse effect to the security in the use.

The utility model discloses an among the combination superstructure structure, set up two prefabricated bottom plates 6 respectively in the both sides of second T shaped steel 3, shelve prefabricated bottom plate 6 on the second edge of a wing 14 of second T shaped steel 3, be provided with steel bar truss 13 on a prefabricated bottom plate 6, be provided with between two adjacent steel bar truss 13 and fill box 10, set up overlap joint reinforcing bar 9 between two prefabricated bottom plates 6, overlap joint reinforcing bar 9 passes M shaped steel spare 4's of combination girder steel 5 space and is connected with steel bar truss 13 respectively, fix roof reinforcing bar 8 on first T shaped steel 2's first edge of a wing 15 through peg 1, concrete placement carries out at last, concrete layer 11 passes M shaped steel spare 4's space, with combination girder steel 5 and superimposed sheet, fill box 10, overlap joint reinforcing bar 9 and roof reinforcing bar 8 are fixed.

To sum up, the utility model discloses an in the combination superstructure structure, concrete layer 11 wears to locate the space for fixed combination girder steel 5, superimposed sheet, packing box 10 and roof reinforcing bar 8, the girder steel is integrated with concrete floor integration, has solved the girder steel and has exposed and the high problem of anticorrosive fire prevention expense, has saved anticorrosive fire prevention expense, and on-the-spot high-efficient assembly ization construction improves the atress performance, economic performance and the durability of assembled steel construction building.

Example 2

The present embodiments provide a modular construction housing system, comprising: the shear wall comprises a cross beam, a column body, a shear wall, a combined floor system and a cantilever plate; the building roof has the building roof structure disclosed in embodiment 1.

As shown in fig. 5, in the horizontal projection plane, the floor structure 50 of the composite structure residential system includes a composite floor 51 arranged indoors and a cantilever plate 52 arranged outdoors; the composite floor 51 and the cantilever plate 52 are connected through a cold and heat bridge preventing node 53.

As shown in fig. 6 and 7, the cold and hot bridge preventing node 53 includes a sandwich plate, a first steel shim plate 53c and a second steel shim plate 53 d; the sandwich panel includes a first metal panel 53a, a second metal panel 53b, a plurality of node connectors 56, an annular sealing plate 54, and a thermal insulation material 55 (i.e., a heat insulating material); the annular closing plate 54 is fixedly connected between the first metal panel 53a and the second metal panel 53b which are oppositely arranged, and surrounds the first metal panel 53a and the second metal panel 53b to form a sealed cavity; one end of the node connecting piece 56 is fixedly connected with the first metal panel 53a, and the other end is fixedly connected with the second metal panel 53b, and is arranged in the sealed cavity; the heat insulation material is filled in the sealed cavity.

A first reinforcing steel bar base plate 53c is welded on the surface of one side, away from the second metal panel 53b, of the first metal panel 53a, and a plurality of floor reinforcing steel bars 53e extending towards the indoor side and entering the composite floor 51 are welded on the first reinforcing steel bar base plate 53 c; the floor reinforcing steel bars 53e are lapped or welded with the reinforcing steel bar framework in the composite floor 51.

The surfaces of the second metal panels 53b, which are away from the first metal panels 53a, are welded with second steel bar cushion plates 53d, and the second steel bar cushion plates 53d are welded with a plurality of cantilever steel bars 53f which extend to the outdoor side and enter the cantilever plates. The cantilever plate steel bars 53f are lapped or welded with the steel bar framework in the cantilever plate. The cantilever plate can be a cantilever balcony, a cantilever air-conditioning plate, a rain shielding plate and other members.

Preferably, the node connecting members 56 are connecting pipes, connecting rods, honeycomb plates or corrugated plates; when the node connection 56 is a connection pipe, the connection pipe is filled with an insulation material. More preferably, node connectors 56 and annular closure plate 54 are formed from a fiber reinforced composite material or plastic. Wherein the heat insulating material is rock wool or foamed polyurethane.

In the above technical solution, preferably, the first metal panel 53a is a carbon structural steel plate, a low-alloy high-strength structural steel plate, or a stainless steel plate; the second metal panel 53b is a carbon structural steel plate, a low-alloy high-strength structural steel plate, or a stainless steel plate.

The annular sealing plates 54 comprise a bottom surface sealing plate, a first side surface sealing plate, a top surface sealing plate and a second side surface sealing plate which are sequentially connected end to end along the circumferential direction; the bottom surface sealing plate and the top surface sealing plate are oppositely arranged; the first side shrouding and second side shrouding set up relatively.

During construction, the first metal panel 53a, the second metal panel 53b, the node connecting piece 56 and the annular sealing plate 54 are fixedly connected together, and a fabrication hole is reserved on the annular sealing plate 54; welding reinforcing steel bar backing plates on the first metal panel 53a and the second metal panel 53b respectively; welding reinforcing steel bars on each reinforcing steel bar base plate; placing the steel bar positioned on one side of the first metal panel 53a or the second metal panel 53b into a formwork (a floor slab or a cantilever formwork); binding steel bars on the steel bars in the template to form a steel bar framework; pouring concrete into the template; filling a heat insulating material into the sealed cavity through the fabrication hole, and extruding and compacting; and (4) plugging the fabrication holes to form a prefabricated part with the cold and heat resistant bridge node for the floor slab.

Example 3

The embodiment discloses a combined structure house system, which is basically the same as the embodiment 2, except that:

as shown in fig. 8, the modular construction housing system includes a restraint support 60; the two ends of the constraint support 60 are fixedly connected with the middle part of the column and the middle part of the beam respectively.

As shown in FIG. 9, the constraining support 60 comprises an outer constraining sheath 61, and an inner core 62, a constraining ring 63, and a constraining rod 64 all disposed within the outer constraining sheath.

The restraining rod 64 and the inner core 62 are both arranged along the length direction of the outer restraining sleeve, and the restraining ring 63 is fixed with the outer restraining sleeve and sleeved outside the inner core 62 and the restraining rod 64 so as to fix the inner core 62 and the restraining rod 64.

As shown in fig. 9, the core 62 has a long plate shape; both sides of the inner core 62 are provided with restraining rods 64; alternatively, as shown in fig. 10, the inner core 62 is a long strip with a cross-shaped cross section, and the four cross-shaped intervals are provided with the restraint rods 64.

Wherein, the restraint ring 63 comprises a plurality of annular restraint steel bars sleeved outside the inner core 62 and the restraint rods 64; the plurality of annular restraining bars are sequentially arranged at intervals along the length direction of the restraining bar 64. In addition, the restraining ring 63 may also be an annular restraining bar that is helically wound around the inner core 62. Wherein, annular restraint reinforcing bar is preferred plain round reinforcing bar. The restraining bar 64 is preferably a steel bar; and the steel bar is welded and fixed with the plain round steel bar. An anti-friction layer is disposed between the restraining bar 64 and the inner core 62 to reduce the frictional resistance between the restraining bar 64 and the inner core 62.

As shown in fig. 11, the outer restraining sleeve 61 includes a mortar layer 61a, and a reinforcing structure is provided in the mortar layer 61 a; the reinforcing structure is a steel wire mesh 61b (or glass fiber net); the steel wire mesh is arranged along the circumferential direction of the outer constraint casing.

As shown in fig. 8, both ends of the inner core 62 are respectively provided with a connection end 65 extending out of the outer restraining sleeve; the width of the connecting end is greater than the width of the inner core 62 of the outer constraining sheath (the middle width of the inner core 62); the connecting end is provided with a mounting hole. The constraint support piece is respectively connected with the cross beam and the column body through the mounting hole on the connecting end.

The utility model provides a bucking restraint is supported, restraint pole 64 and restraint ring 63 restrain the buckling of inner core 62, and the local buckling of restriction inner core 62 to can give full play to the performance of core, simultaneously, add man-hour only need with restraint ring 63 cover at inner core 62 and restraint pole 64 external fixed can, the requirement is low, this operation does not need special mill's processing, consequently processing is simple and convenient, easily operates. The restraint rods 64 are steel rods, the inner core 62 is steel core, the restraint rings 63 are made of smooth steel bars which are common materials, and therefore cost is low and economical efficiency is good. The outer constraint sleeve is made of mortar, so that the buckling restrained brace is prevented from being corroded, and the outer constraint sleeve is free of maintenance in the service life.

Example 4

This example discloses a combined structure housing system, which is substantially the same as example 2 or 3, except that:

as shown in fig. 12 to 15, the present embodiment provides a column body 30, which includes a

circular steel tube

31 and 2 to 4T-shaped steels 32; concrete 33 is poured in the circular steel tube 31, the T-shaped steels 32 are arranged at intervals along the circumferential direction of the circular steel tube 31, and one ends, opposite to the web plate and the flange of the T-shaped steel 32, are fixedly connected with the outer wall of the circular steel tube 31; the web 32b of the T-section steel 32 is located on the diameter extension line of the circular steel tube 31, and the flange 32a is provided with bolt holes.

Wherein, a plurality of T shaped steel 32 lay the mode various, as shown in fig. 12, T shaped steel 32 is two, and the web of two T shaped steel 32 is located the same diameter of circular steel tube 31 in order to form a font. As shown in FIG. 14, the T-section steel 32 is two, and the webs of the two T-section steels 32 are perpendicular to form an L-shape. As shown in FIG. 15, there are three T-shaped steels 32, and the webs of the three T-shaped steels 32 are arranged in a T-shape. As shown in FIG. 13, the T-section 32 is four, and the webs of the four T-section 32 are arranged in a cross shape.

The utility model provides a cylinder 30 comprises circular steel tube 31 and a plurality of T shaped steel 32, and circular steel tube 31 concrete is located near the main axle power that bears of neutralization axle, and the good advantage of full play circular steel tube 31 concrete axle pressure mechanical properties, neutralization axle setting are kept away from to T shaped steel 32, and the arm of force increases, and the bending resistance bearing capacity improves greatly to improve bending resistance mechanical properties greatly. Meanwhile, the T-shaped steel 32 is located on the outer side and convenient to connect, and achieves full-bolt connection of beam-column joints, columns and column vertical splicing joints, namely, the column body 30 is connected with the steel beam and the upper and lower columns through bolts. And during connection, the steel column can be prevented from being exposed outside the wall body, and the aim of hiding the column in the wall body is fulfilled. The node structure is simple, the node plates do not extend into the circular steel tube 31, and the concrete pouring quality is easy to guarantee. Furthermore, the utility model discloses cylinder 30 adopts finished product section bar processing such as hot rolling section bar and the circular steel pipe of clod wash, and processing is simple, but automated production, low in production cost.

In the above solution, preferably, the circular steel tube 31 is provided with a first circular exhaust hole (not shown) on the side wall or both ends; the diameter of the first circular vent hole is larger than or equal to 12 mm. When meeting with the conflagration, first circular exhaust hole is used for discharging the vapor in the concrete in the circular steel tube 31, prevents the circular steel tube 31 expansion crack.

Example 5

This example is substantially the same as example 4, except that:

as shown in fig. 16, the column 30 is embedded in the wall S4; the flange of the T-shaped steel close to the outdoor side in the column 30 is an outer side flange 3a, and the outer side flange 3a is arranged in parallel with the wall surface of the wall body S4; the outer side end face of the outer flange 3a is coated with an outer anticorrosive layer (not shown); and a plurality of layers of glass wool boards S10 are laid on the outer sides of the anti-corrosion layers of the outer side flanges and used for blocking the heat flow transmitted between the indoor and outdoor sides of the wall body by the column body 30 as a heat bridge.

The heat bridge effect at the position of the column 30 is effectively eliminated, the overall heat insulation performance of the building is improved, and meanwhile, the influence of external temperature change on the outer anticorrosive coating can be effectively weakened through the plurality of layers of glass wool boards S10; the effective anticorrosion period of the anticorrosion layer is prolonged.

In a projection plane parallel to wall S4, the breadth of glass wool panel S10 is sized to not cover the entire wall S4, and the breadth of glass wool panel S10 covers only all or a portion of column 30. Different from whole heated board or the heat preservation that sets up in the wall body outside, the utility model discloses the aim at that well cotton board set up blocks the heat bridge of cylinder department, solves the heat-conduction problem of the local department of cylinder.

The utility model discloses the thermal-insulated effect that keeps warm is showing, and is with low costs, can effectively reduce the heat transfer that the cylinder brought as the heat bridge, and the heat flux of eliminating cylinder department wall body S4 indoor and outdoor both sides is concentrated, has increased substantially wall body S4' S heat-proof quality, and wall body S4 that makes can satisfy 75% energy-conservation of residential architecture, reach the coefficient of heat transfer<0.45W/(m²K) green energy saving design requirements.

And, on the projection plane parallel to the wall body S4, the left and right side ends of the glass wool board S10 are arranged to protrude out of the outer flange 3a and are embedded on the wall body S4. The glass wool board S10 properly extends on the left and right sides of the outer flange 3a, so that the blocking performance of heat transfer of the column heat bridge is further improved, and the heat insulation performance of the wall body S4 is improved. The glass wool board S10 is embedded into the wall body S4, so that the phenomena of edge rising, bulging and the like are not easy to occur, and the installation is firmer.

In the embodiment, 2 layers of glass wool boards are arranged on the outdoor side of the column in the thickness direction of the wall body S4; the adjacent two glass wool panels comprise an inner glass wool panel S11 adjacent the column and an outer glass wool panel S12 remote from the column. On a projection plane parallel to the wall S4, the left side and the right side of the outer glass wool board S12 are arranged to protrude out of the inner glass wool board S11; on the horizontal section of the wall body S4, 2 layers of glass wool boards are respectively embedded on the wall body S4 in an inverted pyramid type (step shape).

On the horizontal section of the wall body S4, a plurality of layers of glass wool boards are arranged in a (inverted pyramid) step shape. The heat transfer efficiency of the column is normally distributed, the heat transfer amount of the central area facing the column is the most intensive, and is the column heat bridge area, while the heat transfer amounts of the left side and the right side are gradually reduced, and are respectively the heat bridge influence areas, wherein the length of the arrow in fig. 14 reflects the heat transfer amount. The glass wool boards are arranged on one side of the cylinder in an inverted pyramid mode, and the transmission rule that heat is normally distributed in a heat bridge is more met, so that heat scattering on two sides of the cylinder can be blocked while heat transfer on the front side of the cylinder can be effectively blocked.

And the plurality of layers of glass wool boards are arranged in an inverted pyramid manner, and the left side and the right side of each glass wool board can be embedded with the wall S4, so that the glass wool boards can be prevented from warping and bulging in the building life of decades after being installed. On the premise of ensuring that the building energy-saving design standard is met, the building energy-saving cost is reduced. The utility model discloses can extensively be used for steel frame construction external wall insulation field.

While single-layer glass wool panels require an increase in the thickness of the glass wool panel if the same thermal bridge blocking effect is achieved, excessively thick glass wool panels are often non-standard and require custom-made by the manufacturer, thereby increasing construction costs. In addition, the excessively thick glass wool board is inconvenient to install due to being excessively heavy, and is easy to fall off after installation. And when the single-layer glass wool board meets the heat insulation effect of the heat bridge column region, the condition that heat insulation measures are excessive exists in the corresponding region of the heat bridge influence region, and material waste exists.

And this application can adopt 2-6 layers of conventional glass cotton board according to the design requirement in a flexible way, and every layer of glass cotton board thickness greatly reduced, the installation of being convenient for, the cotton board of installation back glass is difficult for droing, and is more firm. In addition, excessive waste of materials does not exist, so that the method belongs to a green and energy-saving construction method.

In the above embodiment, it is more preferable that the number of the glass wool boards is 3 to 4, and the width of the outer flange 3a and the width of the 3 to 4 glass wool boards are sequentially arranged in an equal ratio series, wherein the ratio range is preferably 1.6 to 2. Taking 3 layers of glass wool boards as an example, the width of the inner layer of glass wool board is 1.6-2 times of the width of the outer flange 3a, the width of the middle layer of glass wool board is 1.6-2 times of the width of the inner layer of glass wool board, and the width of the outer layer of glass wool board is 1.6-2 times of the width of the middle layer of glass wool board.

Wherein, the inner glass wool board S11 is laid on the outer side surface of the outer flange 3a and the wall body S4 by using adhesive. The outer glass wool board S12 is coated on the inner glass wool board S11 and the wall S4 by using an adhesive 5.

In addition, a connecting anchor bolt is arranged between the wall S4 and the glass wool board S10, and the glass wool board is further fastened by the connecting anchor bolt after being adhered to the wall through adhesive. The glass wool board is fixed by adopting two modes of an adhesive and an anchor bolt, so that the integral performance of the heat-insulating layer and the wall body is ensured.

In the present embodiment, it is more preferable that the flange of the T-section steel near the indoor side in the column 30 is an inner flange 3b, the inner flange 3b is arranged parallel to the wall surface of the wall body, and the outer end surface of the inner flange 3b is coated with an inner anticorrosive coating; and no thermal insulation material is laid outside the inner anti-corrosion layer of the inner flange 3 b.

Because the indoor humiture changes less, and is comparatively stable, be favorable to the inner anticorrosive coating to keep effective for a long time from this, utilize the heat bridge effect of cylinder self, and combine the cotton board of glass outside the outside edge of a wing to block the heat bridge to weaken the temperature variation fluctuation of outside edge of a wing 3a outer anticorrosive coating department greatly, thereby prolong the effective life-span of outer anticorrosive coating more effectively, thereby improved the corrosion resisting property of cylinder on the whole.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A kind of composite floor structure, characterized by, including composite girder steel and concrete floor;

2. The structure of a composite floor according to claim 1, wherein the second T-section includes a second flange and a lower connecting member, the first T-section includes a first flange and an upper connecting member, and the reinforcing brace members are connected to the lower connecting member and the upper connecting member, respectively; the superimposed sheet with the second flange is connected.

3. A modular floor construction according to claim 2, wherein the width of the second flange is greater than the width of the first flange.

4. The composite floor construction of claim 1, wherein the laminated slab includes a prefabricated base plate and steel bar trusses, the steel bar trusses are disposed on the prefabricated base plate, the prefabricated base plate is connected with the second T-shaped steel, and the stuffing box is located between the adjacent steel bar trusses.

5. The composite floor construction of claim 4, wherein the concrete floor further comprises an overlap reinforcement, the overlap reinforcement is disposed through the gap and fixedly connected to the reinforcement truss.

6. The composite floor structure according to claim 1, wherein the supporting reinforcement member is an M-shaped reinforcement member, the M-shaped reinforcement member includes two M-shaped reinforcements correspondingly disposed, and the first T-section and the second T-section are located between the adjacent M-shaped reinforcements; the M-shaped steel bar is bent to form a plurality of gaps, and the gaps are M-shaped.

7. A modular construction dwelling system with a modular floor construction as claimed in any one of claims 1 to 6, comprising: the composite floor slab comprises a cross beam, a column body, a shear wall, the composite floor slab and a cantilever slab;

8. The modular structural housing system according to claim 7, wherein the nodal connections are connecting pipes, connecting rods, honeycomb panels, or corrugated panels; when the node connecting piece is a connecting pipe, heat insulation materials are filled in the connecting pipe.

9. The modular structural housing system according to claim 7, wherein the columns comprise round steel tubes and a plurality of T-sections; concrete is poured in the circular steel tube, the T-shaped steels are arranged at intervals along the circumferential direction of the circular steel tube, and one ends, opposite to the web plate and the flange, of the T-shaped steels are fixedly connected with the outer wall of the circular steel tube; the web of the T-shaped steel is located on the diameter extension line of the circular steel tube, and the flange is provided with a bolt hole.

10. The modular construction housing system according to claim 9, wherein the number of said T-section steels is 3 or more, and said T-section steels are arranged at regular intervals in the circumferential direction of said circular steel pipes.