CN107882235A - A kind of large span cavity floor of assembled without bright beam - Google Patents
A kind of large span cavity floor of assembled without bright beam Download PDFInfo
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- CN107882235A CN107882235A CN201710951280.8A CN201710951280A CN107882235A CN 107882235 A CN107882235 A CN 107882235A CN 201710951280 A CN201710951280 A CN 201710951280A CN 107882235 A CN107882235 A CN 107882235A
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- prefabricated
- cavity
- assembled
- convex
- steel
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
- E04B5/046—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed with distance from another
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B2001/2484—Details of floor panels or slabs
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention provides a kind of large span cavity floor of the assembled without bright beam, and comprising prefabricated post, prefabricated convex beam, prefabricated hollow board member termination cross rib be recessed, longitudinal combination girt strip, joint close；It is characterized in that structure reinforcing bars are reserved at the prefabricated post both ends；The prefabricated convex beam two ends have reserved steel bar stress；Longitudinal combination time beam steel through hole road is prefabricated with the prefabricated convex beam；The prefabricated convex beam reserves the bearing that steel bar stress passes through prefabricated post both ends reserved steel bar junction to be formed, and forms reinforced concrete composite frame structure；The prefabricated hollow board member is by longitudinal bar concrete girt strip, cross reinforcement concrete girt strip, cavity body, bottom wing listrium, prefabricated hollow board member termination cross rib is recessed forms；Recess is arranged on the both sides of prefabricated convex beam under the cavity plate component termination cross rib, and the concavo-convex of recess combines under convex beam and termination cross rib, forms without bright beam；The cavity plate component groups joint close depth≤50mm.
Description
Technical field
The present invention relates to a kind of assembled architecture systems technology, and in particular to a kind of large span cavity of assembled without bright beam
Floor technology.
Background technology
In order to adjust construction industry structure, construction quality is improved, Accelerating The Construction speed, realizes energy-conserving and environment-protective, reduces engineering
Cost, country's proposition widely popularize assembled architecture, specify that specific implementation plan；And require in reinforced concrete frame knot
Extensive use in structure, reinforced concrete frame shear wall structure, steel construction and steel-concrete combined structure system, it specify that China fills
With formula architectural structure system and application field；But the assembled architecture floor ground zero of large span horizontal structure, and use
Be common laminated floor slab, technological system end, which is established, causes cost high, earth-free gas, constrains assembled architecture industry development.
ZL200410082381.9 " a kind of hollow floor slab with small dense ribs " and ZL200820126232.1 such as inventor is " a kind of
Cast-in-situ section steel concrete cavity building roof ", hollow filling body are embedded in formation " T fonts " stress cross-section hollow layer in cast-in-situ floor, solution
Determined large span, large space, big load the problem of.In order that girt strip reinforcing bar forms continuous slab by steel I-beam web in length and breadth
The cast-in-situ hollow floor plate of band, the hole reserved in steel I-beam web is too many and aperture is too small, processing trouble；Meanwhile cement is empty
The heart obturator setting and hardening time is grown, and mould utilization factor is low, the big matter weight of hollow filling volume density, production and transport inconvenience and obturator
The defects of globality poor cracky.
To realize industrialized production, inventor applies for that ZL201310332173.9 " use by a kind of cast-in-situ hollow building roof pore-forming again
Netted box component " and ZL201510331724.X " a kind of Novel steel-mixed combination cast-in-situ hollow building roof ", to cast-in-place hollow building
Lid technology carries out General Promotion, realizes transition and upgrade, updates and significantly reduce the deadweight of cavity building roof, adds certainly
Thermal and insulating performance, safety of structure is strong, solves the problems, such as to realize that large span, large space, the hollow floor of big load are present；
Inventor constantly lifts oneself cast-in-situ hollow building roof background technology, is established for assembled architecture large span, the horizontal structure without bright beam
The basis of hard stone is determined；Although solving the problems, such as into pole industrialized production, all it is that cast-in-site is built with assembled
Build generation contradiction.
Again in order to promote China's housing industrialization development, the ZL201620408935.8 of inventor's application " build by passive type
Energy saving integrated system " and ZL201620409015.8 " one kind exempts from the prefabricated assembled cavity plate of formwork " are cast-in-place concrete hollow
Superstructure, assembled architecture field is expanded to by creating transition, solve assembled arthitecutral structure globality poor, large span without bright
The problems such as beam, component super large, component industrialization, construction quality controllability, work efficiency and environmental protection；These inventions, although being me
State's Process of Housing Industrialization has tamped basis, but also exist the prefabricated assembled cavity plate member stress of long strip type one-way,
The connection space limitation of the crackle in gap, bidirectional stress cavity floor transverse direction reinforcing bar during two pieces of prefabricated assembled cavity plate splits
The problems such as.
Currently, since assembled architecture also has many Ji arts Wen Ti No to have solution, cause construction cost high, popularization is obstructed；
In order to promote building science and technology progress, use is multi-functional, economy, scientific and technological content, energy-conserving and environment-protective and the market demand are big, safety
Coefficient is high, cost is low, meets the architectural structure system of national industrial policies and industrial development direction again.Therefore, inventor exists again
On the basis of existing background technology of controlling oneself, by being applied in assembled arthitecutral structure for cast-in-situ hollow building roof technology creation, shape
Into new assembled cassette ceiling structural system and the combination assembled building floor structural system of steel reinforced concrete；By cast-in-place cavity building
Lid Technology Difficulties problem solves in batch production, and sizing produces prefabricated post, precast beam, cavity board member, other prefabricated structures
Part, steel structure member, floor construction pour top flange plate and combination girt strip or prestressed mode solution after being integrally forced through scene
Certainly, the prefabricated assembled prefabricated components of factorial praluction are combined with steel structure member.And in order to promote China's house
Industrialization develop in a healthy way, recently, inventor oneself production base participate in by Tongji University, civil construction institute of Central South University,
Largest " steel construction cavity floor full scale test of the assembled large span without secondary beam " of national Tianjin fire research hosting,
" assembled large span is without bright joist steel tendon concrete structure full scale test ", " being tested using the fire control smoke exhausting of assembled cavity floor "
To examine inventor's prior art innovative, advanced, reasonability and security；Experiment is added using the multispan load of continuous slab band
Full scale test and Assembled Building plate ultimate load loading full scale test are pressed, the specific data of ultimate load load test are done nothings
Beam assembled experimental model span 8.4m, surrounding are encorbelmented 1.6m, length of side 11.6m, compression area 134.56m2, use dynamic load
2KN, actual loaded load 22KN；Limit crack national standard is 1.5mm, and actual crack only has 0.5mm；By national standard calculating limit amount of deflection
For 168mm, actural deflection 39mm；By verification experimental verification assembled architecture reinforced concrete structure without bright beam or steel construction without
The security of the structure of secondary beam；Single load bearing floor member is changed into bidirectional stress floor, by monolithic freely-supported building by verification experimental verification
Board member is changed into the floor construction of continuous slab band；Thoroughly solves large span floor component bonding crack cracking, fire prevention, sound insulation, normal
The problems such as year maintenance, assembly technology, assembled architecture cost particularly have dropped 20%；Logical structure full scale test, for assembling
Further practical basis has been tamped in innovation to formula building；But experiment disclose the distribution of assembled arthitecutral structure internal force become rule,
Also in the case where ensuring the preceding topic of assembled arthitecutral structure safety requirements, space that assembled architecture technology also much optimizes.Grind
Send out large span cavity floor of the assembled without bright beam a kind of, solve the structure level direction floor globality, fire prevention, it is multi-functional,
The problems such as joint close crackle；It is the important breakthrough for realizing assembled arthitecutral structure system new technology, has become assembled architecture
The urgent need of technical field innovation.
The content of the invention
It is an object of the invention to play the advantage of innovation assembled architecture technology, the shortcomings that overcoming prior art；Work
The prefabricated components such as the prefabricated post of factory metaplasia production, prefabricated convex beam, prefabricated hollow board member, wallboard, pass through assembled in situ rear pouring concrete
Technology combines, and improves the entirety of building structure；Country advocates prefabricated rate and reaches 40% a few days ago, will use of the present invention group
Prefabricated rate reaches 75% after closing frame structure state-of-the-art technology；Cap or haunched beam are formed on the periphery of two pieces prefabricated post junction,
Increase Punching Shear and shear resistance；Prefabricated convex beam uses hollow beam, mitigates the deadweight of beam, takes post stretching to apply in beam pre-
Stress；The connection for being formed as cross rib beam steel of two pieces of cavity plate component assembly combination girt strip dead slots provides space, produces
Regeneration gate beam, by the one-way of member stress is changed into bidirectional stress；The sky of longitudinal combination girt strip is provided for longitudinal stress
Between, solve and simply supported slab is changed into continuous slab band；Longitudinal combination girt strip is applied with bonding crack, and thoroughly solves cavity plate structure
Part engages the reproduction of crackle；A kind of large span cavity floor of assembled without bright beam, saves existing assembled laminated floor slab technology
Benefit caused by shared floor height space, it is rational in infrastructure, reach the existing assembled arthitecutral structure technical system of optimization, overcome existing
A series of defects existing for structure technology.
Technical scheme is as follows, a kind of large span cavity floor of assembled without bright beam, comprising prefabricated post, prefabricated
Convex beam, prefabricated hollow board member termination cross rib are recessed, longitudinal combination girt strip, joint close；It is characterized in that the prefabricated post both ends
Reserved structure reinforcing bars；The prefabricated convex beam two ends have reserved steel bar stress；Longitudinal group is prefabricated with the prefabricated convex beam
Close time beam steel through hole road；The prefabricated convex beam is reserved steel bar stress and formed through prefabricated post both ends reserved steel bar junction
Bearing, form reinforced concrete composite frame structure；The prefabricated hollow board member by longitudinal bar concrete girt strip, cross reinforcement concrete girt strip,
Cavity body, bottom wing listrium, the recessed composition of prefabricated hollow board member termination cross rib；Recess is pacified under the cavity plate component termination cross rib
Mounted in the both sides of prefabricated convex beam, the concavo-convex combination of recess, is formed without bright beam under convex beam and termination cross rib；The cavity plate structure
Part combinated seam depth≤50mm.
The prefabricated post upper end formation steel bar end is docked with prefabricated post lower end structure steel bar end to be docked, will
Prefabricated post raises；Every prefabricated post docking wicking height is building floor height；The docking mode is mechanical splice or slip casting
Docking；Every prefabricated post reserved steel bar is to being connected in dislocation docking.
The prefabricated convex depths of beam of reinforcing bar length ＞ after the docking of prefabricated post reserved steel bar termination, in prefabricated post reserved steel bar
In the reinforcing bar length space formed after the docking of termination, prefabricated convex beam steel is sealed in, to the reinforcing bar length position pour concrete, is formed
Assembled steel reinforced concrete frame structure.
The prefabricated post sets cast-in-place solid cap with prefabricated convex beam binding site；The area of the cast-in-place solid cap
≥1.0m2。
There are deformed bar or the adjacent both sides Cavity structural member girt strip reinforcing bar of the prefabricated convex beam of connection in the prefabricated convex beam
Hole；The prefabricated convex beam upper surface has reinforcing bar or suspension ring exposed.
Cavity body in the cavity board member, is engraved or prefabricated hollow or plastics cavity or foam cement block containing steel mesh with ribbing
Or foam block；The steel mesh with ribbing is engraved to be engraved or fish scale steel mesh with ribbing is engraved for spreading belt rib steel net.
The bottom surface of the cavity board member longitudinal bar concrete girt strip has L shape concrete raised.
Gate beam bar connecting between two pieces of cavity board members forms regeneration gate beam.
It is mutually communicated between the cavity of the cavity board member, forms dark air channel.
The prefabricated post, prefabricated convex beam combination part are applied with haunched beam.
A kind of large span cavity floor of assembled without bright beam of the present invention, is on the basis of Architectural Structure Design drawing
For the physical dimension of horizontal structure superstructure and wallboard, Architectural Structure Design drawing is decomposed, assembling form quantify secondary
Design, drawing resolve into N number of post and beam and assembled cavity board member and wall body construction etc., and factory is by the paper organization life decomposed
Produce into the prefabricated member of the specifications and models, by component be transported to engineering site assembling and after pour and form.
Large span cavity floor of a kind of assembled without bright beam of specific implementation, by prefabricated post base reinforcing bar and building foundation
Post reserved steel bar is connected, and prefabricated post upper end steel bar stress termination is connected with prefabricated post lower end steel bar stress termination to be docked
Connect, prefabricated post is raised；Every prefabricated post connection wicking height is building floor height；Connected mode connects for mechanical connection or slip casting
Connect；It is required that every prefabricated post, which reserves steel bar stress, is connected as dislocation connection, its tie point should not be on a plane of constraint；Every
Prefabricated post reserves the prefabricated convex depths of beam of reinforcing bar length ＞ after the connection of steel bar stress termination, for the ease of connection construction,
The thinner thickness of prefabricated convex beam or it is thicker when, prefabricated post reserve steel bar stress termination connection after reinforcing bar length can adjust,
Open tubular column can be used in prefabricated post；Covered again in order to allow prefabricated post concrete interface to be prefabricated convex beam rear pouring concrete, lower end prefabricated post is pre-
After staying steel bar stress termination to dock connection with the reserved steel bar stress termination of upper end prefabricated post, the concrete of upper end prefabricated post is less than prefabricated convex
The upper surface of ellbeam；In order to mitigate deadweight, prefabricated convex beam can use hollow beam, can also use the porous hollow beam of small-bore；
When using solar heating air-supply, open tubular column is connected in post beam junction with hollow beam with more siphunculus moulds by hollow, is formed dark
Pipeline；Again in order to strengthen the ability of shearing and Punching Shear, prefabricated convex beam is solid with being formed around prefabricated post interface infall
Cap, reinforcing bar and relative thickness are set up by force request in cap, sleeper cap is typically identically formed with cantilever thickness, shape during higher than beam
Into bright cap；When in assembled architecture in order to ensure that beam column center is misaligned, influence of the beam bias to beam column node core area,
Haunch is poured after taking level, haunched beam is poured after formation；Again in order to increase the shearing resistance of beam column center and bearing capacity requirement, preferably in beam
Column border node core pours beam rest after taking vertically, pour vertical haunched beam after forming beam, the anti-seismic performance of buttress brace, realize assembled
Building is without bright beam；Haunched beam is poured in order to after and organically combines face with prefabricated convex beam, is made during prefabricated convex beam that its bottom is inside
Tilt；In prefabricated post, the structural member interface of out-hung panel is also prefabricated with；Prefabricated convex soffit is by major diameter they sup-port
On the prefabricated convex beam of lower floor's floor；Prefabricated convex beam is the prefabricated convex beam without bright beam or has the prefabricated convex beam of bright beam, institute
State the prefabricated convex beam without bright beam and use spill termination cavity plate component, bumps engagement is realized without bright beam；There is the prefabricated convex of bright beam
Cavity board member is directly placed on upper position at the convex of prefabricated convex beam by ellbeam；Prefabricated hollow board member is by longitudinal bar concrete rib
Beam, cross reinforcement concrete girt strip, cavity body, bottom wing listrium composition；Vertical and horizontal side girt strip in cavity board member it is wide 50mm~
Between 100mm, vertical and horizontal girt strip is wide between 150mm~200mm, the longitudinal direction of every cavity board member contacted with beam and
The first half headspace of horizontal girt strip, full concrete is not poured during prefabricated cavity member, is poured after staying segment space favourable；When using without bright
During the prefabricated convex beam of beam, cavity plate component termination lower end is concave, and now longitudinal rib beam bottom reinforcement bars upwarps；Cavity plate member end
Head is rest directly upon on prefabricated convex beam bottom protrusion width, and realization has bright beam floor；The upper reinforcement of cavity plate longitudinal rib beam across
More prefabricated convex beam upper surface, and with adjacent longitudinal rib beam upper reinforcement bind；Cavity board member can also use formwork erection mode system
Make, be mainly mould external reinforcement to formwork erection requirement, it is to be ensured that large span cavity plate structure manufacture timeinvariance；Moulding in mould, mainly
Being related to the bottom surface of cavity board member longitudinal bar concrete girt strip has the raised formation of L shape concrete, and cavity board member forms upper surface
The processing of mould internal model, the closure when reinforcing steel bars exposed and local caburizing of reserved steel bar and suspension ring to concrete；Sky in cavity board member
Cavity is engraved by steel mesh with ribbing or prefabricated hollow or plastics cavity or foam cement block or foam block；Most preferably it is to use spreading belt rib steel
Net is engraved or fish scale steel mesh with ribbing is engraved；The bottom surface of two pieces of cavity board member longitudinal bar concrete girt strips there are into L shape concrete projection split, shape
Into split notch, longitudinal rib reinforcement is set up in notch, it is longitudinal group to be formed freely-supported cavity board member change continuous floor key
Girt strip notch space is closed, while thoroughly solves the problems, such as that combinated seam ftractures during split again；The other split notch space is also for again
Raw gate beam provides connection space, by the cross rib reinforcing bar of adjacent two pieces of cavity board members using welding or mechanical connection or slip casting
Method connects, and forms regeneration gate beam, and it is empty that cavity board member single load bearing plate is changed into a kind of large span of assembled without bright beam
Chamber floor bi-directional pressured plate；In order to reduce regeneration gate beam connection, also can in cavity board member girt strip it is preset it is elongated it is pre- should
Power reinforcing bar or prestress steel twist cord hole deferent, during assembled in situ, deformed bar is sealed in the pipe of duct, takes post stretching to apply
Prestressing force；By prefabricated post vertical applied force bar connecting, prefabricated convex beam bottom mother plate support, cap or haunch beam mould be installed,
Cavity board member is placed on beam bottom mother plate, the excessively prefabricated convex beam of the elongated reinforcing bar string of longitudinal combination girt strip and Peng are tied, carried out
Set aside pre-embedded pipeline, cavity board member cavity between be mutually communicated to form closed conduit；For fire control smoke exhausting closed conduit, in order to subtract
Few fire control smoke exhausting resistance, steel mesh with ribbing engrave in put Jiong shape thin-walled air channel or thin plate air channel again, steel mesh with ribbing is engraved along Jiong shape thin-walled
The termination perforate in air channel, local dark air channel is formed, resistance caused by participating in smoke evacuation due to whole cavity body when reducing smoke evacuation, again
Improve smoke discharging effect；After the reserved stretching cross rib reinforcing bar of connection forms regeneration cross rib reinforcing bar, a kind of assembled is re-layed without bright beam
Large span cavity floor floor top flange plate reinforcing bar, thereafter to above-mentioned each headspace property pour concrete again；Pre-
Pole is connected in the prefabricated out-hung panel structural member device interface of post processed, prefabricated Self-insulation wall plate is placed on rod rest；Wall
Plate frame containing armored concrete, enhancing durability with steel mesh body with ribbing, the wallboard appearance composite bed containing steel mesh body with ribbing and contain
Table composite bed, heat-insulation layer in the wallboard of steel mesh body with ribbing, with reference to Liu Kou；In the presence of formwork erection, by the reinforcing bar of reinforcing bar frame
Keel and steel mesh body with ribbing are placed in formwork erection, and first by pour concrete in reinforcing bar frame, mortar is poured into a mould in wallboard appearance and Nei Biao,
Mortar and steel mesh bluk recombination with ribbing, form the wallboard appearance and Nei Biao composite beds of durability, then hair is injected in steel mesh body with ribbing
Steep concrete thermal-insulating material and form heat-insulation layer, formwork erection upper end is closed with concrete；To prevent wall from seeping water, phase is set on wallboard longitudinal direction both sides
Anti- combination willow mouth waterproof, the maintenance demoulding obtain wallboard；Rear pouring concrete form removal obtains a kind of required large span of assembled without bright beam
Cavity floor building.
Brief description of the drawings
Fig. 1 is the prefabricated convex beam of the present invention without bright beam floor cross section.
Fig. 2 is prefabricated post node diagram of the present invention.
Fig. 3 is cavity floor longitudinal combination girt strip explosion views of the present invention.
Fig. 4, Fig. 5, Fig. 6 are front view, stereogram and the side view of cavity board member of the present invention.
Fig. 7 is that steel mesh with ribbing engraves structure chart in cavity board member of the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 be the prefabricated convex beam of the present invention without bright beam floor cross-sectional embodiment, when the present invention is implemented, factory is made
Good prefabricated convex beam 2, the bottom width of prefabricated convex beam 2 within 600mm, the height of prefabricated convex beam 2 600mm with
It is interior；In order to mitigate weight, hollow beam 26 can be formed；When forming the prefabricated convex beam without bright beam floor, under cavity plate component termination
Hold concave, the prefabricated bottom protrusion height of convex beam 2 is usually within 100mm, longitudinal rib beam direction stress is now ensured, by longitudinal rib
Beam bottom reinforcement bars termination upwarps 100mm；The prefabricated bottom protrusion width of convex beam 2 is usually 100mm, cavity plate component termination lower end
Concave size matches with beam, and bumps combine, and realize without bright beam floor；Cavity board member 3 is transported to after job site respectively,
The prefabricated bottom of convex beam 2 is supported with heavy caliber support bar 24 again, between the assembly of support bar 24 and the prefabricated bottom of convex beam 2, most
Handy supporting plate 23 balances；The prefabricated bottom protrusion height of convex beam 2 is usually most preferably 100mm within 200mm；Prefabricated convex beam 2
Bottom protrusion width is usually most preferably 100mm within 150mm；The prefabricated middle and upper part ledge width of convex beam 2 is usually 400mm
Within, height ＞ 300mm；The extension of reinforcing bar 21 waits to go here and there prefabricated post and prefabricated post steel bar stress connection space, and prefabricated post connects
The part of cap is set up in socket part position；Cavity board member 3 is placed in the both sides of the prefabricated hoop reinforcing steel bar 22 of convex beam 2；In order to hold
By the partial pressure of cavity board member 3, N root hyphens reinforcing bar 25 is additionally arranged at the bottom of to strengthen in prefabricated convex beam 2, but it is pre- in order to reduce
The thickness of the bottom projection of convex beam 2 processed, N root hyphen reinforcement fabrications are into two concave shape 25, by the prefabricated bottom of convex beam 2
The reinforcing bar on both sides is placed on concave shape position, and the reinforcing bar on the bottom both sides of convex beam 2 is chosen with N root hyphen reinforcing bars, in N root hyphen steel
The prefabricated hoop reinforcing steel bar of convex beam 2 that muscle is fabricated to the position of two concave shape 25 is bigger than the diameter of other hoop reinforcing steel bars；It is pre- in order to mitigate
The deadweight of convex beam 2 processed and solar energy, fire control smoke exhausting multipotency pipeline are realized using prefabricated convex beam 2, prefabricated convex beam 2 is formed
Hollow beam 26.
Fig. 2 is prefabricated post node diagram of the present invention, the reinforcing bar 11 of the two sections prefabricated post 1 contour with floor is vertically connected, even
Connect and typically use slip casting method joint 12, upper section prefabricated post reinforcing bar 11 should not be in same level with lower section prefabricated post reinforcing bar 11 every
On face, joint 12 should misplace 13 connections, upper section prefabricated post reinforcing bar 11 and lower section prefabricated post reinforcing bar 11 every misplace 13 be connected after, shape
Stretch to the space 14 of bar connecting into precast main beam；In order to allow the concrete of upper section prefabricated post 1 to be combined with rear pouring concrete, upper section is prefabricated
The concrete of post 1 should be less than the surface of floor top flange plate rear pouring concrete.
Fig. 3 is cavity floor longitudinal combination girt strip explosion views of the present invention, is the globality of reinforcement structure stress and from basic
The upper combinated seam 29 solved between two pieces of cavity board members 3 ftractures, and the bottom surface on cavity board member longitudinal rib beam side has L shape concrete convex
211, ledge width 70mm are played, raised high width is within 30mm；By the adjacent longitudinal bar concrete girt strip side of two pieces of cavity board members 3
Raised 211 splits of the L shape concrete of 27 bottom surfaces, form split notch 25 and combinated seam 29, longitudinal direction are disposed in split notch 25
Girt strip reinforcing bar 26 is combined, and longitudinal combination girt strip hole is reserved by prefabricated convex beam, forms elongated reinforcing bar；In split notch 25
Connect transverse steel and formed and regenerate horizontal girt strip；Engrave and superstructure is laid above 28 in cavity plate member upper surface and steel mesh with ribbing again
Top flange plate reinforcing bar, thereafter property pour concrete again；In order to exclude open type cavity board member in time in accumulating and installation process
In casual water, in the bottom wing listrium of cavity board member set row casual water N number of aperture 212.
Fig. 4, Fig. 5, Fig. 6 are front view, stereogram and the side view of cavity board member of the present invention, and cavity board member 3 is by indulging
To girt strip 214, longitudinal girt strip side 27, the L shape concrete projection 211 of longitudinal edge rib, horizontal girt strip 215, the horizontal girt strip of regeneration
Reinforcing bar stretching, termination transverse direction girt strip 213, steel mesh with ribbing are engraved 216, closed conduit hole 315 and formed；In crisscross girt strip grid
Lay steel mesh with ribbing and engrave 216, in order to reduce fire control smoke exhausting resistance, set up in steel mesh with ribbing engraves 216 the small closed conduit of plate system with it is dark
Pipe hole 315 penetrates；Surface is provided with suspension ring and rib reinforcement and reserves exposed, and concrete or mortar are prefabricated with girt strip and bottom wing listrium 314；
During used in floor without bright beam, the lower end of two ends cross rib 213 concave 313 of cavity board member 3.
Fig. 7 is that steel mesh with ribbing engraves structure chart, with ribbing steel mesh of the cavity board member into cavity in cavity board member of the present invention
Engrave 5 and body 54 is engraved by steel mesh body with ribbing, built-in bar-mat reinforcement supporter net 53, plug 57 and impression corner 56 are formed；In order to reduce
Engraved as exhaust resistance during fire control smoke exhausting pipeline in steel mesh with ribbing in 5 in the space 55 that steel mesh with ribbing is engraved into structure whole cavity
Jiong shape sheet-metal duct 52 is put again, allows the wind with smog directly to engrave to put again in 5 in Jiong shape sheet-metal duct 51 from steel mesh with ribbing and discharge；Band
Rib steel net is engraved 5 and is used along the termination perforate in Jiong shape thin-walled air channel 51 as fire-fighting smoke controlling pipeline or solar energy air supply duct, real
Cavity floor multifunctional application is showed.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that still
The embodiment of the present invention can be modified or equivalent substitution, and end departs from any of spirit and scope of the invention
Modification or equivalent substitution, it all should cover among scope of the presently claimed invention.
Claims (10)
1. a kind of large span cavity floor of assembled without bright beam, include prefabricated post, prefabricated convex beam, prefabricated hollow board member end
Head cross rib is recessed, longitudinal combination girt strip, joint close；It is characterized in that structure reinforcing bars are reserved at the prefabricated post both ends；It is described prefabricated convex
Ellbeam two ends have reserved steel bar stress；Longitudinal combination time beam steel through hole road is prefabricated with the prefabricated convex beam；It is described
Prefabricated convex beam reserves the bearing that steel bar stress passes through prefabricated post both ends reserved steel bar junction to be formed, and forms reinforced concrete combo box
Frame structure；The prefabricated hollow board member is by longitudinal bar concrete girt strip, cross reinforcement concrete girt strip, cavity body, bottom wing listrium, prefabricated hollow
The recessed composition of board member termination cross rib；Recess is arranged on the both sides of prefabricated convex beam under the cavity plate component termination cross rib, convex
The concavo-convex combination of recess, is formed without bright beam under ellbeam and termination cross rib；The cavity plate component groups joint close depth≤50mm.
2. large span cavity floor of a kind of assembled without bright beam as claimed in claim 1, its spy are in the prefabricated post
End structure steel bar end is docked with prefabricated post lower end structure steel bar end to be docked, and prefabricated post is raised；It is described every
Prefabricated post docking wicking height is building floor height；The docking mode is that mechanical splice or slip casting are docked；Every prefabricated post
Reserved steel bar is to being connected in dislocation docking.
A kind of 3. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that the prefabricated post
The prefabricated convex depths of beam of reinforcing bar length ＞ after the docking of reserved steel bar termination, formed after being docked in prefabricated post reserved steel bar termination
Reinforcing bar length space in, seal in prefabricated convex beam steel, to the reinforcing bar length position pour concrete, form assembled steel reinforced concrete frame
Frame structure.
A kind of 4. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that the prefabricated post
Cast-in-place solid cap is set with prefabricated convex beam binding site；Area >=1.0m of the cast-in-place solid cap2。
5. large span cavity floor of a kind of assembled without bright beam as claimed in claim 1, it is characterised in that described prefabricated convex
There is the hole of deformed bar or the adjacent both sides Cavity structural member girt strip reinforcing bar of the prefabricated convex beam of connection in ellbeam；The prefabricated convex
Beam upper surface has reinforcing bar or suspension ring exposed.
A kind of 6. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that the cavity plate
Cavity body in component, is engraved or prefabricated hollow or plastics cavity or foam cement block or foam block containing steel mesh with ribbing；It is described with ribbing
Steel mesh is engraved to be engraved or fish scale steel mesh with ribbing is engraved for spreading belt rib steel net.
A kind of 7. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that the cavity plate
The bottom surface of component longitudinal bar concrete girt strip has L shape concrete raised.
A kind of 8. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that two pieces of skies
Gate beam bar connecting between cavity plate component forms regeneration gate beam.
A kind of 9. large span cavity floor of assembled without bright beam as claimed in claim 1, it is characterised in that the cavity plate
It is mutually communicated between the cavity of component, forms dark air channel.
10. large span cavity floor of a kind of assembled without bright beam as claimed in claim 1, it is characterised in that described prefabricated
Post, prefabricated convex beam combination part are applied with haunched beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951280.8A CN107882235A (en) | 2017-10-13 | 2017-10-13 | A kind of large span cavity floor of assembled without bright beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710951280.8A CN107882235A (en) | 2017-10-13 | 2017-10-13 | A kind of large span cavity floor of assembled without bright beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882235A true CN107882235A (en) | 2018-04-06 |
Family
ID=61781576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710951280.8A Pending CN107882235A (en) | 2017-10-13 | 2017-10-13 | A kind of large span cavity floor of assembled without bright beam |
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| Country | Link |
|---|---|
| CN (1) | CN107882235A (en) |
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