CN107675824A - Cavity board member for stress island superstructure - Google Patents

Cavity board member for stress island superstructure Download PDF

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Publication number
CN107675824A
CN107675824A CN201710952050.3A CN201710952050A CN107675824A CN 107675824 A CN107675824 A CN 107675824A CN 201710952050 A CN201710952050 A CN 201710952050A CN 107675824 A CN107675824 A CN 107675824A
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CN
China
Prior art keywords
prefabricated
board member
cavity board
cavity
post
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Pending
Application number
CN201710952050.3A
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Chinese (zh)
Inventor
李国强
王本淼
王海崴
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Hunan BDF Energy Saving Technology Co Ltd
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Hunan BDF Energy Saving Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hunan BDF Energy Saving Technology Co Ltd filed Critical Hunan BDF Energy Saving Technology Co Ltd
Priority to CN201710952050.3A priority Critical patent/CN107675824A/en
Publication of CN107675824A publication Critical patent/CN107675824A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/48Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21Connections specially adapted therefor

Abstract

The present invention is provided to the cavity board member of stress island superstructure, includes prefabricated post, prefabricated convex beam, cap, cavity board member, longitudinal combination girt strip, regeneration cross rib reinforcing bar, joint close;The hole that two longitudinal combination girt strip reinforcing bar strings are crossed at least is reserved in the prefabricated convex beam, forms the longitudinal combination girt strip of continuous slab band;The cap is located at prefabricated post, the periphery of prefabricated convex beam junction prefabricated post;The cap is by prefabricated post and convex beam joint space, cavity board member corner, auxiliary bar, Combined concrete;The cap takes the corner of prefabricated convex beam and the adjacent four pieces of cavity board members of prefabricated post contact;There is 0.15m in the corner of the cavity board member2Space above does not have precast concrete, but there is girt strip reinforcing steel bars exposed in length and breadth in corner;The cavity board member includes longitudinal bar concrete girt strip, cross reinforcement concrete girt strip, cavity body and bottom wing listrium;The cavity board member is arranged on the both sides of prefabricated convex beam;The cavity board member is without insertion joint close.

Description

Cavity board member for stress island superstructure
Technical field
The present invention relates to a kind of assembled architecture systems technology, and in particular to the cavity board member skill for stress island superstructure Art.
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 Hair solves structure level direction floor globality, fire prevention, the multi-functional, joint close in the cavity board member of stress island superstructure The problems such as crackle;It is the important breakthrough for realizing assembled arthitecutral structure system new technology, has become assembled architecture technology neck The urgent need of domain 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;Precast hollow convex beam and open tubular column are employed, mitigates the deadweight of beam column, after being taken in beam The method of opening applies prestressing force;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, regeneration gate beam is generated, the one-way of member stress is changed into bidirectional stress;Longitudinal combination is provided for longitudinal stress The space of girt strip, solve and simply supported slab is changed into continuous slab band;Longitudinal combination girt strip is applied with bonding crack, and is thoroughly solved Cavity board member engages the reproduction of crackle;For the cavity board member of stress island superstructure, existing assembled laminated floor slab skill is saved Benefit caused by floor height space shared by art, it is rational in infrastructure, reach the existing assembled arthitecutral structure technical system of optimization, overcome existing There are a series of defects existing for structure technology.
Technical scheme is as follows, for the cavity board member of stress island superstructure, includes prefabricated post, prefabricated convex Beam, cap, cavity board member, longitudinal combination girt strip, regeneration cross rib reinforcing bar, joint close;It is at least reserved in the prefabricated convex beam The hole that two longitudinal combination girt strip reinforcing bar strings are crossed, form the longitudinal combination girt strip of continuous slab band;The cap be located at prefabricated post, The periphery of prefabricated convex beam junction prefabricated post;The cap by prefabricated post and convex beam joint space, cavity board member corner, Auxiliary bar, Combined concrete;The cap takes the angle of prefabricated convex beam and the adjacent four pieces of cavity board members of prefabricated post contact Portion;There is 0.15m in the corner of the cavity board member2Space above does not have precast concrete, but there is girt strip reinforcing bar in length and breadth in corner It is exposed;The cavity board member includes longitudinal bar concrete girt strip, cross reinforcement concrete girt strip, cavity body and bottom wing listrium;The cavity plate Component is arranged on the both sides of prefabricated convex beam;The cavity board member is without insertion joint close.
The prefabricated post upper end steel bar stress termination is docked with prefabricated post lower end steel bar stress termination 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 prefabricated post reserved steel bar termination docking, are reserved in prefabricated post In the reinforcing bar length space formed after steel bar end docking, prefabricated convex beam reserved steel bar is sealed in, the reinforcing bar length position is poured Concrete is noted, forms group frame.
The prefabricated post is open tubular column;The face of the open tubular column assembling Side fascia, is reserved with structural member attachment means.
The prefabricated post is open tubular column, in precast hollow post, is mounted with the scene during construction assembling by the connection of floor section Elongated (height) steel reinforcement cage.
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 cavity board member is assemblied in the first half or whole of prefabricated convex beam;Formed with bright beam floor or without Ming Liang buildings Plate.
The bottom surface of the cavity board member longitudinal bar concrete girt strip has L shape concrete raised.
It is mutually communicated between the cavity of the cavity board member, forms dark air channel;Thin metal is set up again in the dark air channel Plate or inorganic board form the dark smokejack of fire-fighting.
The cavity board member for stress island superstructure of the present invention, is that water is directed on the basis of Architectural Structure Design drawing The physical dimension of flat structure superstructure and wallboard, Architectural Structure Design drawing is decomposed, quantization Secondary Design is carried out to assembling form, schemed Paper resolves into N number of post and beam and assembled cavity board member and wall body construction etc., and factory is produced into institute by the paper organization of decomposition State the prefabricated member of specifications and models, by component be transported to engineering site assembling and after pour and form.
The cavity board member for stress island superstructure of specific implementation, prefabricated post base reinforcing bar and building foundation post are reserved Bar connecting, prefabricated post upper end steel bar stress termination are attached with prefabricated post lower end steel bar stress termination to be docked, will be pre- Post rise processed;Every prefabricated post connection wicking height is building floor height;Connected mode is mechanical connection or slip casting connection;It is it is required that every Part prefabricated post reserves steel bar stress and is connected as dislocation connection, and its tie point should not be on a plane of constraint;Every prefabricated post is pre- The prefabricated convex depths of beam of reinforcing bar length > after the connection of steel bar stress termination are stayed, for the ease of connection construction, in prefabricated convex The thinner thickness of beam or it is thicker when, prefabricated post reserve steel bar stress termination connection after reinforcing bar length can adjust;Prefabricated post can Using open tubular column, precast hollow post, elongated (high) steel reinforcement cage disposed by floor section is connected during construction assembling at the scene;Again Covered to allow prefabricated post concrete interface to be prefabricated convex beam rear pouring concrete, lower end prefabricated post reserves steel bar stress termination and upper end is prefabricated After post reserves the docking connection of steel bar stress termination, the concrete of upper end prefabricated post is less than the upper surface of prefabricated convex beam;In order to mitigate certainly Weight, 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, forms closed conduit;Shear and resist to strengthen again Solid cap is formed around the ability of punching, prefabricated convex beam and prefabricated post interface infall, is increased in cap by force request Bright cap is formed if reinforcing bar and relative thickness, sleeper cap is typically identically formed with cantilever thickness, during higher than beam;In assembled architecture During 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, after formation Pour haunched beam;Again in order to increase the shearing resistance of beam column center and bearing capacity requirement, preferably poured after bean column node core is taken vertically Beam rest, vertical haunched beam is poured after forming beam, the anti-seismic performance of buttress brace, realizes assembled architecture without bright beam;Pour and add in order to after Armpit beam organically combines face with prefabricated convex beam, and its bottom slopes inwardly when making prefabricated convex beam;It is also prefabricated in prefabricated post There is the structural member interface of out-hung panel;Prefabricated convex soffit is by major diameter they sup-port in the prefabricated convex beam of lower floor's floor On;Prefabricated convex beam is the prefabricated convex beam without bright beam or has the prefabricated convex beam of bright beam, the prefabricated convex beam without bright beam Using spill termination cavity plate component, bumps engagement is realized without bright beam;The prefabricated convex beam for having bright beam directly puts cavity board member The upper position at the convex of prefabricated convex beam;Prefabricated hollow board member is by longitudinal bar concrete girt strip, cross reinforcement concrete girt strip, cavity Body, bottom wing listrium composition;Vertical and horizontal side girt strip in cavity board member is wide between 50mm~100mm, vertical and horizontal Girt strip is wide between 150mm~200mm, and the first half of the vertical and horizontal girt strip of every cavity board member contacted with beam is reserved Space, full concrete is not poured during prefabricated cavity member, is poured after staying segment space favourable;It is empty when using the prefabricated convex beam without bright beam Cavity plate component termination lower end is concave, and now longitudinal rib beam bottom reinforcement bars upwarps;Cavity plate component termination is rest directly upon prefabricated convex On ellbeam bottom protrusion width, realization has bright beam floor;The upper reinforcement of cavity plate longitudinal rib beam crosses over prefabricated convex beam upper surface, And with adjacent longitudinal rib beam upper reinforcement bind;Cavity board member can also be made using formwork erection mode, be mainly to formwork erection requirement Mould external reinforcement, it is to be ensured that large span cavity plate structure manufacture timeinvariance;Moulding in mould, it is mainly concerned with cavity board member and indulges steel The bottom surface of muscle concrete girt strip has the raised formation of L shape concrete, and cavity board member forms the mould internal model processing of upper surface, reserved steel bar And suspension ring reinforcing steel bars exposed and local caburizing when closure to concrete;Cavity body in cavity board member is engraved or prefabricated by steel mesh with ribbing Cavity or plastics cavity or foam cement block or foam block;Most preferably it is to be engraved using spreading belt rib steel net 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 is into L shape concrete projection split, split notch is formed, increases in notch If longitudinal rib reinforcement, it is longitudinal combination girt strip notch space to be formed freely-supported cavity board member change continuous floor key, while again Thoroughly solve the problems, such as that combinated seam ftractures during split;It is empty that the other split notch space also provides connection for regeneration gate beam Between, the cross rib reinforcing bar of adjacent two pieces of cavity board members is connected using welding or mechanical connection or grouting method, it is horizontal to form regeneration Girt strip, cavity board member single load bearing plate is changed into the cavity board member bi-directional pressured plate for stress island superstructure;In order to reduce Regenerate gate beam connection, also can in cavity board member girt strip preset elongated deformed bar or prestress steel twist cord hole road Pipe, during assembled in situ, deformed bar is sealed in the pipe of duct, take post stretching to apply prestressing force;By prefabricated post vertical applied force Bar connecting, prefabricated convex beam bottom mother plate support, install cap or haunch beam mould, and cavity board member is placed in beam bottom mother plate Upper, the excessively prefabricated convex beam of the elongated reinforcing bar string of longitudinal combination girt strip and Peng tie, carry out set aside pre-embedded pipeline, cavity board member It is mutually communicated to form closed conduit between cavity;For fire control smoke exhausting closed conduit, in order to reduce fire control smoke exhausting resistance, steel mesh with ribbing is engraved Jiong shape thin-walled air channel or thin plate air channel are inside put again, and steel mesh with ribbing engraves the termination perforate along Jiong shape thin-walled air channel, is formed local dark Air channel, resistance caused by participating in smoke evacuation due to whole cavity body when reducing smoke evacuation, improves smoke discharging effect again;Connection is reserved to stretch After going out cross rib reinforcing bar formation regeneration cross rib reinforcing bar, the top flange slab of the cavity board member floor for stress island superstructure is re-layed Muscle, thereafter to above-mentioned each headspace property pour concrete again;In the prefabricated out-hung panel structural member device interface of prefabricated post Middle connection pole, prefabricated Self-insulation wall plate are placed on rod rest;Wallboard frame containing armored concrete, enhancing durability are used Table composite bed in steel mesh body with ribbing, the wallboard appearance composite bed containing steel mesh body with ribbing and the wallboard containing steel mesh body with ribbing, heat-insulation layer, With reference to Liu Kou;In the presence of formwork erection, the reinforcing bar keel of reinforcing bar frame and steel mesh body with ribbing are placed in formwork erection, first by steel Pour concrete in muscle frame, mortar, mortar and steel mesh bluk recombination with ribbing are poured into a mould in wallboard appearance and Nei Biao, forms the wall of durability Plate appearance and Nei Biao composite beds, then inject foamed concrete insulation material in steel mesh body with ribbing and form heat-insulation layer, closed with concrete Formwork erection upper end;To prevent wall from seeping water, opposite combination willow mouth waterproof is set on wallboard longitudinal direction both sides, the maintenance demoulding obtains wallboard;Afterwards Pour concrete form removal and obtain the required cavity board member building for stress island superstructure.
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 (9)

1. for stress island superstructure cavity board member, comprising prefabricated post, prefabricated convex beam, cap, cavity board member, longitudinal group Close girt strip, regeneration cross rib reinforcing bar, joint close;At least reserve what two longitudinal combination girt strip reinforcing bar strings were crossed in the prefabricated convex beam Hole, form the longitudinal combination girt strip of continuous slab band;The cap is located at prefabricated post, the week of prefabricated convex beam junction prefabricated post Side;The cap is by prefabricated post and convex beam joint space, cavity board member corner, auxiliary bar, Combined concrete;The post Cap takes the corner of prefabricated convex beam and the adjacent four pieces of cavity board members of prefabricated post contact;The corner of the cavity board member has 0.15m2Space above does not have precast concrete, but there is girt strip reinforcing steel bars exposed in length and breadth in corner;The cavity board member includes vertical Reinforced concrete girt strip, cross reinforcement concrete girt strip, cavity body and bottom wing listrium;The cavity board member is arranged on the two of prefabricated convex beam Side;The cavity board member is without insertion joint close.
2. being used for the cavity board member of stress island superstructure as claimed in claim 1, its spy is prefabricated post upper end stress Steel bar end is docked with prefabricated post lower end steel bar stress termination to be docked, and prefabricated post is raised;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 reserves steel Muscle is to being connected in dislocation docking.
3. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the prefabricated post reserves steel The prefabricated convex depths of beam of reinforcing bar length > after the docking of muscle termination, the reinforcing bar formed after being docked in prefabricated post reserved steel bar termination In length space, prefabricated convex beam reserved steel bar is sealed in, to the reinforcing bar length position pour concrete, forms group frame.
4. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the prefabricated post is hollow Post;The face of the open tubular column assembling Side fascia, is reserved with structural member attachment means.
5. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the prefabricated post is hollow Post, in precast hollow post, elongated (height) steel reinforcement cage by the connection of floor section is mounted with during construction assembling at the scene.
6. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that in the cavity board member Cavity body, engraved containing steel mesh with ribbing or prefabricated hollow or plastics cavity or foam cement block or foam block;The steel mesh with ribbing is engraved Engraved for spreading belt rib steel net or fish scale steel mesh with ribbing is engraved.
7. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the cavity board member dress Fit over the first half or whole of prefabricated convex beam;Formed with bright beam floor or without bright beam floor.
8. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the cavity board member is indulged The bottom surface of reinforced concrete girt strip has L shape concrete raised.
9. it is used for the cavity board member of stress island superstructure as claimed in claim 1, it is characterised in that the cavity board member It is mutually communicated between cavity, forms dark air channel;Metal sheet is set up in the dark air channel again or inorganic board forms fire-fighting and secretly discharged fume Road.
CN201710952050.3A 2017-10-13 2017-10-13 Cavity board member for stress island superstructure Pending CN107675824A (en)

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US3918222A (en) * 1974-06-03 1975-11-11 Bahram Bahramian Prefabricated modular flooring and roofing system
CN201206328Y (en) * 2008-05-28 2009-03-11 霍起家 Preform formwork of cast-in-place concrete rib floor
CN202194059U (en) * 2011-05-25 2012-04-18 龚友平 Prestress steel bar concrete tight rib hollow lamination box beam
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CN110569544A (en) * 2019-08-06 2019-12-13 湖北大成空间科技股份有限公司 Method for determining space stress of prefabricated combined type cavity floor

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Application publication date: 20180209