CN208777555U - A kind of prefabricated convex beam - Google Patents

Abstract

The utility model provides a kind of prefabricated convex beam, and the prefabricated convex beam is prefabricated hollow beam；Width in the beam bottom width G T.GT.GT convex beam of the prefabricated convex beam；The horizontal ledge height < 100mm of the convex beam beam bottom width；The width < 200mm of convex beam beam bottom width levels protrusion part；The height > 300mm of the convex beam vertical lug point；There is the stretching of beam stress reinforcing bar at convex beam both ends.

Description

A kind of prefabricated convex beam

Technical field

The utility model relates to a kind of assembled architecture systems technologies, and in particular to a kind of prefabricated convex beam skill Art.

Background technique

Country widelys popularize assembled architecture, specifies specific implementation plan；And it requires in reinforced concrete frame knot It is widely applied in structure, reinforced concrete frame shear wall structure, steel construction and steel-concrete combined structure system, specifies 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, technology existing defects, assembled architecture cost is excessively high, earth-free gas, cause country promote assembled Built speed is obstructed.

The prior art using common beam slab such as inventor a kind of ZL200410082381.9 " building empty stomach little Mi Lei Lid " and ZL200820126232.1 " a kind of cast-in-situ section steel concrete cavity building roof ", hollow filling body is embedded in shape in cast-in-situ floor At " T font " stress cross-section hollow layer, solve the problems, such as large span, large space, big load.In order to make girt strip reinforcing bar in length and breadth By steel I-beam web, the cast-in-situ hollow floor plate of continuous slab band is formed, the too many simultaneously hole in the hole reserved in steel I-beam web Diameter is too small, processing trouble；Meanwhile the cement hollow obturator setting and hardening time is long, mould utilization factor is low, and hollow filling body is close The defects of spending big matter weight, production and transport inconvenience and obturator globality poor cracky.

To realize industrialized production, inventor applies for a kind of ZL201310332173.9 " cast-in-situ hollow building roof pore-forming use again Netted box component " and ZL201510331724.X " a kind of Novel steel-mixed combination cast-in-situ hollow building roof ", to it is existing pour it is hollow Superstructure technology carries out General Promotion, realizes transition and upgrade, updates and significantly reduce the self weight of cavity building roof, add Self-heat preservation heat insulation performance, safety of structure is strong, solve realize large span, large space, big load hollow floor existing for ask Topic；Inventor constantly promotes oneself cast-in-situ hollow building roof background technique, is assembled architecture large span, the horizontal structure without bright beam The basis of hard stone is established；Although solving the problems, such as into pole to produce, all it is cast-in-site, pushes away dress by force with national It is not inconsistent with formula spirit.

Again in order to promote China's housing industrialization to develop, " one kind is for sky by the ZL201620410363.7 of inventor's application The prefabricated component of chamber superstructure " and ZL201620553181.5 " a kind of stress island cavity building roof prefabricated cavity member " Cast-in-place concrete hollow building roof expands to assembled architecture field by creating transition, solves assembled arthitecutral structure entirety The problems such as poor, large span of property is without bright beam, component super large, component industrialization, construction quality controllability, work efficiency and environmental protection；This A little inventions, although having tamped basis for China's Process of Housing Industrialization, there is also the prefabricated assembled cavity plate structures of long strip type The crackle in gap, bidirectional stress cavity floor transverse direction steel when the one-way of part stress, two pieces of prefabricated assembled cavity plate splits The problems such as connection space limitation of muscle.

Currently, since there are also many technical problems not to solve for assembled architecture, causes to promote and be obstructed；In order to promote to build Scientific and technological progress, use is multi-functional, economy, scientific and technological content, energy conservation and environmental protection and the market demand are big, safety coefficient is high, cost It is low, and meet the architectural structure system of national industrial policies and industrial development direction.Therefore, inventor is again in existing background self On the basis of technology, by being applied in assembled arthitecutral structure for cast-in-situ hollow building roof technology creation, novel assembly is formed Formula cassette ceiling structural system；Cast-in-place cavity building roof Technology Difficulties problem is solved in batch production, sizing production prefabricated post, prefabricated Beam, assembled cavity floor component, steel structure member, structure be integrally forced through behind scene pour top flange plate and combination girt strip or Prestressed mode solves, the prefabricated assembled Cavity structural member of the factorial production and steel construction and the organic knot of reinforced concrete frame Altogether；Again in order to promote China's housing industrialization to develop in a healthy way, recently, inventor participates in big by Tongji University in oneself production base , civil construction institute, Central South University, national Tianjin fire research preside over largest " assembled large span is without secondary beam Steel construction cavity floor full scale test ", " utilizes assembly at " assembled large span is without bright joist steel tendon concrete structure full scale test " The fire control smoke exhausting of formula cavity floor is tested " examine inventor's prior art innovative, advanced, reasonability and safety；Examination Test the multispan load pressurization full scale test and Assembled Building plate ultimate load load full scale test using continuous slab band, ultimate load The specific data of load test be done without beam assembled experimental model span 8.4m, surrounding overhanging 1.6m, side length 11.6m, by Pressure surface accumulates 134.56m², use dynamic load 2KN, actual loaded load 22KN；Limit crack national standard is 1.5mm, and practical crack is only There is 0.5mm；Calculating limiting flexibility by national standard is 168mm, actural deflection 39mm；By verification experimental verification assembled architecture in reinforcing bar The safety of structure of the concrete structure without bright beam or steel construction without secondary beam；Verification experimental verification becomes single load bearing floor member Bidirectional stress floor, the floor construction that monolithic freely-supported floor member is become to continuous slab band；Thoroughly solves large span floor structure The problems such as part bonding crack cracking, fire prevention, sound insulation, maintenance, assembly technology throughout the year, especially assembled architecture cost is had dropped 20%；Logical structure full scale test, further innovates for assembled architecture and has tamped practical basis；But test discloses assembled The distribution of building structure internal force becomes rule, and there are also in the case where ensuring the preceding topic of assembled arthitecutral structure safety requirements, assembled is built Building technology, there are also the spaces much optimized.A kind of prefabricated convex beam of assembled architecture is researched and developed, assembled architecture skill is had become The urgent need of art field innovation.

Utility model content

The purpose of this utility model is that the prefabricated assembled component of the factorial production, especially prefabricated convex beam, On-site assembly pours technology after and combines at reinforced concrete frame structure, improves the whole of assembled arthitecutral structure Body；Mitigate cavity plate member dead weight and organically combined with prefabricated convex beam, realizes that assembled lowers without bright beam or bright beam；? Hole, hollow, prefabricated convex beam inclined-plane are set in prefabricated convex beam to reach the self weight and raising safety that mitigate prefabricated convex beam Property, it realizes multi-functional；Save a series of defects such as layer spatial layer height shared by existing assembled laminated floor slab.

The technical solution of the utility model is as follows, a kind of prefabricated convex beam, and the prefabricated convex beam is prefabricated sky Heart beam；Width in the beam bottom width G T.GT.GT convex beam of the prefabricated convex beam；The horizontal ledge of the convex beam beam bottom width Height < 100mm；The width < 200mm of convex beam beam bottom width levels protrusion part；The convex beam vertical lug The height > 300mm divided；There is the stretching of beam stress reinforcing bar at convex beam both ends.

The prefabricated convex beam two ends are in inclined-plane；Its inclined-plane is tilted to beam bottom body.

In the prefabricated convex beam, the hole of longitudinal combination girt strip reinforcing bar break-through is reserved.

The prefabricated convex beam bottom setting laterally overhangs reinforcing bar；The two ends of the overhanging reinforcing bar are recessed, are placed on beam bottom The upper surface of reinforcing bar；The beam stress reinforcing bar on the prefabricated convex beam bottom side be placed in overhanging reinforcing bar two ends it is recessed in.

A kind of prefabricated convex beam of assembled architecture of the utility model, is needle on the basis of Architectural Structure Design drawing To the geometric dimension of horizontal structure superstructure and vertical structure wallboard, Architectural Structure Design drawing is decomposed, to the assembling form amount of progress Change Secondary Design, drawing resolves into N number of prefabricated member and wall body construction etc., and factory is produced into described by the paper organization of decomposition The prefabricated member of specifications and models, by prefabricated member be transported to engineering construction assembled in situ and after pour.

The prefabricated assembled component of specific implementation being the factorial production, especially prefabricated convex beam, at the scene group Reinforced concrete frame structure is dressed up, the binding site of each component is combined by rear pouring concrete technology, improves assembly The globality of formula building structure；Cavity board member is placed in prefabricated convex beam two sides, realizes assembled without bright beam or bright Beam lowers；In prefabricated convex beam be arranged hole, hollow, prefabricated convex beam inclined-plane come reach mitigate prefabricated convex beam self weight and Safety is improved, is realized multi-functional；Save a series of defects such as space layer height shared by existing assembled laminated floor slab；Assembled is built Build width in the beam bottom width G T.GT.GT convex beam with prefabricated convex beam, general span 8400mm assembling frame structure it is prefabricated The beam bottom width of convex beam is 600mm；After floor assembly when not obvious beam, prefabricated convex beam horizontal ledge height 80mm, the width that convex beam beam bottom width levels protrude part is 100mm；Assembling frame structure of the general span in 8400mm Prefabricated convex beam beam bottom width be 550mm；After floor assembly when obvious beam, prefabricated convex beam horizontal ledge height 180mm, the width that convex beam beam bottom width levels protrude part is 100mm；It is described, the height of convex beam vertical lug point 400mm；Prefabricated convex beam is generally solid beam, in order to mitigate prefabricated convex beam self weight and use beam as multi-functional pipeline, in advance Hollow beam is made；In order to pour contact surface after increasing prefabricated convex beam, the crackle of prefabricated convex beam and rear pouring concrete is prevented, it will be prefabricated Convex beam two ends are in inclined-plane, and inclined-plane is tilted to beam bottom body, allow after the more bracketings of concrete for pouring column interface or bolumn cap prefabricated convex Type beam；At the natural axis of prefabricated convex beam, the hole of longitudinal combination girt strip reinforcing bar break-through is reserved, forms continuous slab band and more function It can hole；Prefabricated convex beam bottom setting laterally overhangs reinforcing bar, and when not obvious beam, the two ends for overhanging reinforcing bar are recessed；When obvious beam When, the two ends for overhanging reinforcing bar can not be recessed into down straight reinforcing bar, and prefabricated convex beam bottom portion overhanging reinforcing bar is placed on beam bottom reinforcing bar Above；Prefabricated convex beam bottom edge reinforcement steel bar stress be placed in overhanging reinforcing bar two ends it is recessed in or overhanging reinforcing bar above, it is main It is to ensure that the receiving pressure of assembly cavity board member.Convex beam both ends steel bar stress is connected with mechanical connection with slip casting after stretching out Method be attached；In the space of two beams connection, while it being poured concrete after connecting other function part, realizes a kind of use Constitute assembled architecture.

Detailed description of the invention

Fig. 1 is the prefabricated convex beam of the utility model without bright beam floor cross section.

Fig. 2 is the utility model prefabricated post node diagram.

Fig. 3 is the utility model cavity floor longitudinal combination girt strip explosion views.

Fig. 4, Fig. 5, Fig. 6 are main view, perspective view and the side view of the utility model cavity board member.

Fig. 7 engraves structure chart for steel mesh with ribbing in the utility model cavity board member.

Specific embodiment

The utility model is further described with reference to the accompanying drawing.

Fig. 1 is the prefabricated convex beam of the utility model without bright beam floor cross-sectional embodiment, will when the utility model is implemented Within 600mm, the height of prefabricated convex beam 2 exists the bottom width of prefabricated convex beam 2, prefabricated convex beam 2 that factory makes Within 600mm；In order to mitigate weight, hollow beam 26 can be formed；When forming the prefabricated convex beam without bright beam floor, cavity plate structure Part end lower end is concave, prefabricated 2 bottom protrusion height of convex beam be usually within 100mm ensure at this time longitudinal rib beam direction by Longitudinal rib beam bottom portion steel bar end is upwarped 100mm by power；Prefabricated 2 bottom protrusion width of convex beam is usually 100mm, cavity plate structure The concave size in part end lower end is matched with beam, and bumps combine, and is realized without bright beam floor；Cavity board member 3 is transported respectively Behind construction site, then with heavy caliber support rod 24 support prefabricated 2 bottom of convex beam, 24 assembly of support rod and prefabricated convex beam 2 Between bottom, most handy supporting plate 23 is balanced；Prefabricated 2 bottom protrusion height of convex beam is usually most preferably 100mm within 200mm； Prefabricated 2 bottom protrusion width of convex beam is usually most preferably 100mm within 150mm；Prefabricated 2 middle and upper part ledge width of convex beam Within usually 400mm, height > 300mm；21 extension of reinforcing bar waits going here and there prefabricated post and with prefabricated post steel bar stress connects sky Between, prefabricated post connecting portion adds the component part of bolumn cap；Cavity board member 3 is placed in prefabricated 2 hoop reinforcing steel bar 22 of convex beam Two sides；In order to bear the partial pressure of cavity board member 3, N root hyphen reinforcing bar 25 is additionally arranged at the bottom of in prefabricated convex beam 2 to reinforce, Again in order to reduce the thickness that part is protruded in prefabricated 2 bottom of convex beam, N root hyphen reinforcement fabrication, will be pre- at both ends concave shape 25 The reinforcing bar on 2 bottom both sides of convex beam processed is placed on concave shape position, and the steel on 2 bottom both sides of convex beam is chosen with N root hyphen reinforcing bar Muscle is more straight than other hoop reinforcing steel bars at prefabricated 2 hoop reinforcing steel bar of convex beam at 25 position of both ends concave shape in N root hyphen reinforcement fabrication Diameter is big；It, will in order to mitigate the self weight of prefabricated convex beam 2 and realize solar energy, fire control smoke exhausting multipotency pipeline using prefabricated convex beam 2 Prefabricated convex beam 2 forms hollow beam 26.

Fig. 2 is the utility model prefabricated post node diagram, and the reinforcing bar 11 of the two sections prefabricated post 1 contour with floor is vertically connected It connects, connection generally uses slip casting method connector 12, and upper section prefabricated post reinforcing bar 11 should not be same with lower section prefabricated post reinforcing bar 11 every On a horizontal plane, connector 12 should misplace 13 connections, and upper section prefabricated post reinforcing bar 11 connects with lower section prefabricated post reinforcing bar 11 every dislocation 13 After connecing, the space 14 that precast main beam stretches to reinforcing bar connection out is formed；In order to allow the concrete of upper section prefabricated post 1 to be combined with rear pouring concrete, The concrete of upper section prefabricated post 1 should be lower than the surface of floor top flange plate rear pouring concrete.

Fig. 3 be the utility model cavity floor longitudinal combination girt strip explosion views, be reinforcement structure stress globality and from The combinated seam 29 fundamentally solved between two pieces of cavity board members 3 cracks, and the bottom surface on cavity board member longitudinal rib beam side has L shape Concrete protrusion 211, ledge width 70mm, the high width of protrusion are within 30mm；By adjacent two pieces of cavity board members, 3 longitudinal bar concrete rib Raised 211 splits of the L shape concrete of 27 bottom surface of beam side, form split notch 25 and combinated seam 29, dispose in split notch 25 Longitudinal combination girt strip reinforcing bar 26, and longitudinal combination girt strip hole is reserved by prefabricated convex beam, form elongated reinforcing bar；Split notch Transverse steel is connected in 25 and is formed regenerates lateral girt strip；The upper surface of 28 pavings are engraved in cavity plate member upper surface and steel mesh with ribbing again If superstructure top flange plate reinforcing bar, property pour concrete again thereafter；In order to exclude open type cavity board member in time in storage and transportation and peace Casual water during dress, N number of aperture 212 of setting row casual water in the bottom wing listrium of cavity board member.

Fig. 4, Fig. 5, Fig. 6 are main view, perspective view and the side view of the utility model cavity board member, cavity board member 3 Laterally by longitudinal girt strip 214, longitudinal girt strip side 27, the L shape concrete protrusion 211 of longitudinal edge rib, lateral girt strip 215, regeneration 216, closed conduit hole 315 composition is engraved in the stretching of girt strip reinforcing bar, end transverse direction girt strip 213, steel mesh with ribbing；In criss-cross girt strip net Steel mesh with ribbing is placed in lattice and engraves 216, in order to reduce fire control smoke exhausting resistance, is engraved in steel mesh with ribbing and is added the small closed conduit of plate system in 216 It is penetrated through with closed conduit hole 315；Surface be equipped with hanging ring and rib reinforcement reserve it is exposed, be prefabricated in girt strip and bottom wing listrium 314 concrete or Mortar；When used in floor without bright beam, 213 lower end of two ends cross rib concave 313 of cavity board member 3.

Fig. 7 engraves structure chart for steel mesh with ribbing in the utility model cavity board member, and cavity board member is at the with ribbing of cavity Steel mesh engraves 5 and engraves body 54, built-in steel mesh supporter net 53 by steel mesh body with ribbing, and plug 57 and impression corner 56 are constituted；In order to It reduces and steel mesh with ribbing is engraved into exhaust resistance of the space 55 of structure whole cavity as fire control smoke exhausting pipeline when, engraved in steel mesh with ribbing Jiong shape sheet-metal duct 52 is set in 5 again, the wind with smog is allowed directly to engrave to set again in 5 in Jiong shape sheet-metal duct 51 from steel mesh with ribbing and arrange Out；Steel mesh with ribbing engrave 5 along Jiong shape thin-walled air duct 51 end aperture as fire-fighting smoke controlling pipeline or solar energy air supply duct it With realizing cavity floor multifunctional application.

Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it System, although the utility model is described in detail referring to above-described embodiment, those of ordinary skill in the art should Understand, specific implementation of the utility model can still be modified or equivalent replacement, and end disengaging is originally practical new Any modification of type spirit and scope or equivalent replacement should all cover in the scope of the claims of the utility model.

Claims (3)

1. a kind of prefabricated convex beam, the prefabricated convex beam is prefabricated hollow beam；The beam bottom of the prefabricated convex beam is wide Spend width in > convex beam；The horizontal ledge height < 100mm of the convex beam beam bottom width；The convex beam beam bottom is wide Spend the width < 200mm of horizontal ledge；The height > 300mm of the convex beam vertical lug point；The convex beam two There is the stretching of beam stress reinforcing bar at end；The prefabricated convex beam two ends are in inclined-plane；Its inclined-plane is tilted to beam bottom body.

2. a kind of prefabricated convex beam as described in claim 1, it is characterised in that in the prefabricated convex beam, reserve vertical To the hole of combination girt strip reinforcing bar break-through.

3. a kind of prefabricated convex beam as described in claim 1, it is characterised in that the prefabricated convex beam bottom setting is horizontal To overhanging reinforcing bar；The two ends of the overhanging reinforcing bar are recessed, are placed on the upper surface of beam bottom reinforcing bar；The prefabricated convex beam bottom side Beam stress reinforcing bar be placed in overhanging reinforcing bar two ends it is recessed in.