CN207469438U - A kind of prefabricated open tubular column - Google Patents

Abstract

The utility model provides a kind of prefabricated open tubular column, is in hollow shape among the precast hollow column；There is steel bar stress stretching at the precast hollow column both ends；The steel bar stress that the precast hollow column both ends are stretched out is different in size；The steel bar stress connects steel bar stress different in size into line misregistration using mechanical connection or the method for slip casting connection；Tapping or end shaping are carried out to steel bar stress end respectively before the dislocation connection；The precast hollow column steel bar stress extension elongation ＞ 200mm；There is steel reinforcement cage insertion in the precast hollow column.

Description

A kind of prefabricated open tubular column

Technical field

The utility model is related to a kind of assembled architecture systems technologies, and in particular to a kind of prefabricated open tubular column skill Art.

Background technology

Country widelys popularize assembled architecture, specifies specific implementation plan；And it requires in reinforced concrete frame knot Extensive use 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 is using common beam slab such as a kind of ZL200410082381.9 " empty stomach little Mi Lei buildings of inventor 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 Into " T fonts " 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 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 it is existing pour it is hollow Superstructure technology carries out General Promotion, realizes transition and upgrade, updates and significantly reduce the dead 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 technology, 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 production, all it is cast-in-site, dress is pushed away by force with country It is not inconsistent with formula spirit.

Again in order to promote China's housing industrialization development, " 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, also there are 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 prefabricated member also has many technical problems not solve, cause 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 assembling 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 factorial praluction and steel construction and the organic knot of reinforced concrete frame Altogether；Again in order to which China's housing industrialization is promoted to develop in a healthy way, recently, inventor participates in big by Tongji University in oneself production base , civil construction institute of 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 assembling at " assembled large span is without bright joist steel tendon concrete structure full scale test " The fire control smoke exhausting experiment of formula cavity floor " examines inventor's prior art innovative, advanced, reasonability and safety；Examination It tests using the multispan load pressurization full scale test of continuous slab band and Assembled Building plate ultimate load loading full scale test, ultimate load The specific data of load test be done without beam assembled experimental model span 8.4m, surrounding overhanging 1.6m, length of side 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；It is 168mm, actural deflection 39mm to calculate limiting flexibility by national standard；By verification experimental verification assembled architecture in reinforcing bar Safety of the concrete structure without the structure of 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, long-term maintenance, assembly technology, particularly assembled architecture cost is had dropped 20%；Logical structure full scale test, further innovates for assembled architecture and has tamped practical basis；But experiment discloses assembled The distribution of building structure internal force becomes rule, and also in the case where ensuring the preceding topic of assembled arthitecutral structure safety requirements, assembled is built Build the space that technology also much optimizes.A kind of prefabricated open tubular column is researched and developed, has become assembled architecture technical field The urgent need of innovation.

Utility model content

The purpose of this utility model is that the prefabricated assembled component of factorial praluction, particularly precast hollow column, Into reinforced concrete frame structure, after pour technology combines Assembling, improves the whole of assembled arthitecutral structure Body；Open tubular column mitigates prefabricated post dead weight and after the assembling of precast hollow column, then pours adding the steel reinforcement cage among open tubular column Note the strong column of concrete.

A kind of following prefabricated open tubular column of the technical solution of the utility model, the precast hollow column centre is in hollow Shape；There is steel bar stress stretching at the precast hollow column both ends；The steel bar stress that the precast hollow column both ends are stretched out is different in size； The steel bar stress connects steel bar stress different in size into line misregistration using mechanical connection or the method for slip casting connection；It is described Tapping or end shaping are carried out to steel bar stress end respectively before dislocation connection；The precast hollow column steel bar stress extension elongation ＞ 200mm；There is steel reinforcement cage insertion in the precast hollow column.

A kind of 2. prefabricated open tubular column as described in claim 1, it is characterised in that the precast hollow column quadrangle Chamfered edge.The precast hollow column quadrangle chamfered edge.

The sub-assembly of external wall structure part built in precast hollow column at least one side.

The steel reinforcement cage and steel reinforcement cage tie point being inserted into the precast hollow column are in the centre of precast hollow column.

The steel reinforcement cage and rear cast concrete being inserted into the precast hollow column, reinforced column is poured after formation.

A kind of prefabricated open tubular column of the utility model is for level on the basis of Architectural Structure Design drawing The geometric dimension of structure superstructure and vertical stratification wallboard decomposes Architectural Structure Design drawing, assembling form quantify secondary Design, drawing resolve into N number of prefabricated member and wall body construction etc., and factory is produced into the specification type by the paper organization of decomposition Number prefabricated member, by prefabricated member be transported to engineering construction assembled in situ and after pour.

Specific implementation, the prefabricated assembled component of factorial praluction, particularly precast hollow column, is assembled into steel at the scene Tendon concrete frame structure is combined the binding site of each component by rear pouring concrete technology, improves assembled architecture The globality of structure；Prefabricated post reinforcing bar has been bound, in prefabricated post reinforcing bar keel have been bound, circular mold has been placed, pours into a mould coagulation Garden mould is taken out after native initial condensation, forms open tubular column；Open tubular column is transported to construction site, is first vertically connected steel reinforcement cage, and every section perpendicular It is the radix that open tubular column height adds 1 meter or so to connection length；Vertical lifting open tubular column allows the steel reinforcement cage vertically connected to be inserted in Open tubular column it is hollow in；The steel bar stress of two section open tubular columns is connected using the method for mechanical connection or slip casting even into line misregistration, Enhance the safety of node；Beam steel is connected in the steel bar stress junction of two section open tubular columns, cavity board member is placed in pre- Convex beam two sides processed realize that assembled lowers without bright beam or bright beam；In order to enhance the shearing in beam column crosspoint and Punching Shear Ability adds bolumn cap or haunched beam auxiliary bar in beam column crosspoint, pours into a mould concrete afterwards, realizes a kind of prefabricated hollow Column.

Description of the drawings

Fig. 1 is a kind of prefabricated open tubular column node diagram of the utility model.

Fig. 2 is a kind of prefabricated open tubular column of the utility model and girder and haunched beam combination bottom view.

Fig. 3 is a kind of sectional view of prefabricated open tubular column of the utility model

Specific embodiment

The utility model is further described below in conjunction with the accompanying drawings.

Fig. 1 invents a kind of prefabricated open tubular column node diagram figure embodiment, when the utility model is implemented, first vertical connection Good steel reinforcement cage 13, the steel reinforcement cage 13 connected is than 1 high 1000mm of precast hollow column or so, it is ensured that the connector of steel reinforcement cage 13 is in sky The centre of stem 1；Open tubular column 1 is lifted, hollow hole 12 is directed at steel reinforcement cage 13, steel reinforcement cage 13 is allowed to be inserted into precast hollow column 1 In hollow hole 12；Two section precast hollow columns, 1 vertical applied force reinforcing bar up and down is connected, long reinforcing bar saves in advance with another in vertical applied force reinforcing bar The vertical applied force bar dowel of open tubular column processed is connected, at the tie point of two section open tubular columns, 2 reinforcing bar of girder of both direction in length and breadth Also it is connected at the tie point of the two sections open tubular column；In order to enhance the shearing in beam column crosspoint and punch resistant capability, handed in beam column Crunode adds 22 auxiliary bar of bolumn cap or haunched beam, and the cavity board member 3 at the reserved angle 38 of band is assembled in open tubular column 1 and girder 2 Between, three space forms the bar chair of bolumn cap or haunched beam 22, pours into a mould concrete afterwards, forms the dress with bolumn cap or haunched beam It with formula frame structure bean column node, solves the problems, such as that existing assembled technology beam column crossover node punching resistance is bad, realizes empty Stem 1 and 22 perfect adaptation of bolumn cap or haunched beam of girder 2 and cavity board member 3.

Fig. 2 is a kind of prefabricated open tubular column of the utility model and girder and haunched beam combination bottom view, a kind of assembling Formula precast hollow column 1 is combined with girder 2 and haunched beam 22, beam column crossover node punching resistance and shear resistance enhancing

Fig. 3 is a kind of sectional view of prefabricated open tubular column of the utility model, carries out the precast hollow column of chamfer angle 14 1, the pre-made void 15 of open tubular column 1 is formed, strap steel reinforcement cage 13 is inserted into pre-made void 15, the reinforcing bar contact of steel reinforcement cage is in sky The centre of stem, being equivalent to has uninterrupted elongated column steel bar stress in the space of bean column node, in open tubular column 1 after pour coagulation Soil forms precast hollow column 1 and inserted with 13 coupled column of steel reinforcement cage.

Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited System, although the utility model is described in detail with reference to above-described embodiment, those of ordinary skill in the art should Understand, specific embodiment of the present utility model can be still modified or replaced equivalently, and end is detached from this practicality newly Any modification of type spirit and scope or equivalent replacement should all cover in the right of the utility model.

Claims (5)

1. a kind of prefabricated open tubular column, the precast hollow column centre is in hollow shape；The precast hollow column both ends have by Power reinforcing bar stretches out；The steel bar stress that the precast hollow column both ends are stretched out is different in size；The steel bar stress is using mechanical connection Or the method for slip casting connection connects steel bar stress different in size into line misregistration；Respectively to steel bar stress before the dislocation connection End carries out tapping or end shaping；The precast hollow column steel bar stress extension elongation ＞ 200mm；In the precast hollow column There is steel reinforcement cage insertion.

A kind of 2. prefabricated open tubular column as described in claim 1, it is characterised in that the precast hollow column quadrangle chamfered edge.

A kind of 3. prefabricated open tubular column as described in claim 1, it is characterised in that the precast hollow column at least one side The sub-assembly of built-in external wall structure part.

4. a kind of prefabricated open tubular column as described in claim 1, it is characterised in that be inserted into the precast hollow column Steel reinforcement cage and steel reinforcement cage tie point are in the centre of precast hollow column.

5. a kind of prefabricated open tubular column as described in claim 1, it is characterised in that be inserted into the precast hollow column Steel reinforcement cage and rear cast concrete, reinforced column is poured after formation.