CN208023734U - Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node - Google Patents

Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node Download PDF

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Publication number
CN208023734U
CN208023734U CN201820368025.0U CN201820368025U CN208023734U CN 208023734 U CN208023734 U CN 208023734U CN 201820368025 U CN201820368025 U CN 201820368025U CN 208023734 U CN208023734 U CN 208023734U
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concrete
collar tie
node
linear type
column
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CN201820368025.0U
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曹万林
王如伟
殷飞
刘岩
乔崎云
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Beijing University of Technology
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Beijing University of Technology
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Abstract

The utility model belongs to fabricated construction node manufacture technology field in structural engineering, is related to a kind of assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node.Element factory is prefabricated in the utility model, assembled in situ, wherein steel core concrete column is bolted with concrete isolated footing, concrete collar tie beam is overlapped on the opposite side of isolated footing respectively, form linear type connecting node, each collar tie beam indulges banding fixed between muscle infall reinforcing bar, steel reinforcement cage is formed in linear type connecting node area, connecting node construction site pours, the connection of its cast-in-place node form is reliable, make adjacent collar tie beam and steel core concrete column, isolated footing connects into one neatly, increase the globality of structure, mitigate influence of the foundation uneven settlement to structure, effective protection suspension column simultaneously, avoid suspension column corrosion of steel, improve the reliability of house bottom structure, it is suitble to the wide popularization and application in the low multilayer rural housing structure in villages and small towns, push villages and small towns housingization development.

Description

Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node
Technical field:
The utility model belongs to fabricated construction node manufacture technology field in structural engineering, and in particular to a kind of dress With formula steel core concrete column-isolated footing-concrete collar tie beam linear type connecting node and the practice.
Background technology:
As the main bearing member in building structure, it is respective with concrete that steel core concrete column has played steel pipe simultaneously Material sexual clorminance has mechanical property outstanding.1) bearing capacity is strong.For thin-wall steel tube, since it is very quick to local defect Sense so that its critical bearing capacity is very unstable, concrete go out to be now able to prevent or delay thin-wall steel tube early stage bend Bent situation.And concrete is constrained by steel pipe, Compression mechanism is three dimension stress, may make that longitudinal cracking obtains during compression To delay.Therefore, concrete filled steel tube has stronger bearing capacity.2) ductility is good.On the one hand core concrete is existed by steel tube confinement It enables to its elastic property to be better during use, larger plastic deformation on the other hand can occur during destruction. 3) fire resistance is excellent.Concrete filled steel tube is made of steel and core concrete, and fire resistance is significantly better than steel construction.
In view of the superior mechanical property of concrete filled steel tube, steel core concrete column starts gradually to apply to emerging structure type dress With in formula light-weight structure residence, there is very positive meaning to the bearing capacity and anti-seismic performance that improve light-weight structure residence.When Before, China is in novel urbanization, new countryside construction flourishes period, with vigorously advocating for country, development building work Industry, housing industrialization (especially structure with assembled lightweight steel dwelling house system) are that construction industry transformation the urgent of traditional construction pattern is essential Want, even more adapt to that the villages and small towns agriculture room that has a large capacity and a wide range of China builds there is an urgent need to.
But in structure with assembled lightweight steel, effective anchoring of node how is carried out, is that prefabricated member plays its bearing capacity Key;The globality for how carrying out bottom structure is the key that improve light-weight structure residence reliability and durability.Therefore, The effective anchoring for how carrying out steel core concrete column improves its globality between basis, collar tie beam substructure, while carrying out column The protection of foot steel, which is the key that light-weight structure residence, preferably to be promoted and applied in new countryside construction.
Invention content
The utility model provides a kind of concrete collar tie beam linear type connection of assembly concrete-filled steel tube column-isolated footing- Node and the practice, each structural elements prefabrication in the utility model, construction site assembly pour after node, linear type are overlapped The collar tie beam of arrangement together, while effective protection suspension column, avoiding suspension column corrosion of steel, construction letter with column, the reliable anchoring in basis It is single, it is easy for construction, it is suitble to the wide popularization and application in the low Multistory Light Steel Structrue Housing in villages and small towns, pushes villages and small towns housingization hair Exhibition.
To achieve the above object, the utility model adopts the following technical solution:
Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node, including steel core concrete column (1), suspension column end plate (2), concrete collar tie beam (3), collar tie beam indulge muscle (4), concrete isolated footing (5), pre-embedded bolt (6), node Formwork for placing (7) and linear type connecting node (8);It is welded with the steel core concrete column (1) and concrete independence base of suspension column end plate (2) Plinth (5) is connected by pre-embedded bolt (6), and concrete collar tie beam (3) is overlapped on respectively on concrete isolated footing (5) opposite side, is formed Linear type connecting node;Configuration collar tie beam indulges muscle (4) in the concrete collar tie beam (3), and collar tie beam indulges muscle (4) from steel core concrete column (1) both sides are stretched into linear type connecting node (8) region, and opposite side is overlapped between the collar tie beam on concrete isolated footing (5), Collar tie beam indulges banding fixed between muscle (4) infall reinforcing bar, forms node area steel reinforcement cage, and setting node formwork for placing (7) uses coagulation Soil or grouting material are completed linear type connecting node (8) and are filled, and assembly concrete-filled steel tube column-isolated footing-coagulation pedosphere is formed Beam linear type connecting node.
Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type the connecting node, feature exist In:
Described steel core concrete column (1) section form be rectangular, rectangle or circle, rectangular, the rectangular steel pipe length of side and Round steel pipe diameter is not less than 100mm.The casting concrete in steel pipe, forms steel core concrete column after maintenance, prefabrication is existing Field is mounted directly, and facilitates construction, reduces the duration.
Described suspension column end plate (2) shape is rectangular or rectangle, and thickness takes not less than 6mm, is welded on steel core concrete column (1) bottom.Prepared screw-bolt hole on suspension column end plate (2), the pre-embedded bolt (6) on concrete isolated footing (5) pass through suspension column end plate (2) steel core concrete column (1) and concrete isolated footing (5) are reliably connected by the prepared screw-bolt hole on.
Configuration collar tie beam indulges muscle (4) in the concrete collar tie beam (3), and it is only that concrete collar tie beam (3) is overlapped on concrete respectively On vertical basis (5) opposite side, linear type connecting node is formed.
The collar tie beam indulges muscle (4) and spiral reinforcement, collar tie beam is used to indulge muscle (4) along the elongated arrangement of collar tie beam and stretch out collar tie beam end Section, after concrete collar tie beam (3) is overlapped on concrete isolated footing (5), overhanging collar tie beam indulges muscle (4) and passes through steel tube concrete Node area is goed deep into earth pillar (1) both sides, and extension is without departing from linear type connecting node (8) area size, to ensure that node area is poured When building, the not exposed egress area of reinforcing bar.The collar tie beam of each collar tie beam indulges banding fixed between muscle (4) infall reinforcing bar, is connected in linear type Node (8) area forms steel reinforcement cage.After the filling of node area, is formed and match rigidity of soft tissues node.
Described concrete isolated footing (5) the top surface pre-embedded bolt (6).
The steel core concrete column (1), concrete collar tie beam (3) and concrete isolated footing (5), according to Practical Project need It wants, regeneration concrete can be used.
The pre-embedded bolt (6) is embedded in when making concrete isolated footing (5) in basis, and according to Practical Project Exposed certain anchoring distance.
The node formwork for placing (7) selects steel form or plank sheathing according to Practical Project.
The linear type connecting node (8) uses concrete or grouting material etc. after arranging node formwork for placing (7) Building packing material pours.Packing material intensity is only not less than steel core concrete column (1), concrete collar tie beam (3), concrete Concrete strength in vertical basis (5).Linear type connecting node (8) construction site is cast-in-place, by steel core concrete column (1), concrete Collar tie beam (3), concrete isolated footing (5) firmly pour together, make one neatly, increase the entirety of structure Property, mitigate influence of the foundation uneven settlement to structure.Meanwhile it being effectively protected suspension column, avoid suspension column corrosion of steel.
Compared with prior art, assembly concrete-filled steel tube column-isolated footing-one word of concrete collar tie beam of the utility model Shape connecting node has following advantage:
(1) the utility model be prefabricated member node production method, steel core concrete column, concrete isolated footing, Concrete collar tie beam component is prefabrication production, and only node area construction site pours, and structural form facilitates formwork, is easy to apply Work significantly reduces worker's operation intensity, reduces the engineering amount of labour used, efficiently shortens the construction time, be suitble in low multilayer rural housing structure Middle popularization and application quickly propel the villages and small towns agriculture room retrofit work having a large capacity and a wide range.
(2) node area, the vertical muscle of collar tie beam is overhanging, and steel reinforcement cage is overlapped to form in linear type connecting node area, and packing material is cast-in-place, will Bottom structure component steel core concrete column, concrete isolated footing, concrete collar tie beam pour integral, form strong node, increase The globality of bottom structure realizes strong bottom structure construction.
(3) strong joint form has been effectively ensured main bearing member column being reliably connected to basis, ensure that load exists Effective transmission that column, collar tie beam are carried to basis, increases the bearing capacity of structure.
(4) strong bottom structure construction, enhances the overall stiffness of building and the stability of wall body, and it is uneven heavy to mitigate basis Influence to structure is dropped, reduces gene basis differential settlement or larger vibration load to the adverse effect of building and its caused Wall body cracking.In area of providing fortification against earthquakes, the low multilayer rural housing structure entirety shock resistance in villages and small towns can be effectively improved.
(5) strong bottom structure forms complete reliable stress system with concrete-filled steel Tubular frame structure, does not need wall Structural load is undertaken as primary structure member, convenient for wall arrangement and the type selecting of wallboard.In the low multilayer rural housing structure in villages and small towns, wall Building block or installation assembled wallboard can directly be built by laying bricks or stones on collar tie beam.
(6) steel tube concrete column feet is wrapped in node region by fill concrete or grouting material etc., makes suspension column and the external world Isolation protects suspension column, avoids suspension column corrosion of steel.Meanwhile there is the packing materials such as concrete, grouting material fire prevention well to imitate Fruit can make up the disadvantage of steel fire resistance property difference.
Description of the drawings:
Fig. 1 is assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node manufacturing process part Detail drawing;(a) assembly (b) formwork (c) pours
Fig. 2 is Prefabricated concrete-filled steel tube column schematic diagram;
Fig. 3 is precast concrete isolated footing schematic diagram;
Fig. 4 is precast concrete collar tie beam schematic diagram;
Fig. 5 is assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node assembling plan view;
Fig. 6 is the whole signal of assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node assembly Figure.
In figure:1- steel core concrete columns;2- suspension column end plates;3- concrete collar tie beams;4- collar tie beams indulge muscle;5- concrete independence bases Plinth;6- pre-embedded bolts;7- node formwork for placing;8- linear type connecting nodes.
Specific implementation mode:
Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node in invention, in conjunction with attached drawing 1~6 to illustrate the utility model production method as follows:
The first step:Prefabrication steel core concrete column, concrete collar tie beam and concrete isolated footing.Steel core concrete column system When making, in steel pipe bottom welded post foot plate after-pouring concrete and conserve;When concrete collar tie beam makes, collar tie beam indulges muscle and uses spiral shell Reinforcing bar is revolved, along the elongated arrangement of collar tie beam and overhanging beam end section of going too far, extension is without departing from linear type connecting node region ruler It is very little;Basis top surface pre-embedded bolt when concrete isolated footing makes.
Second step:Assembled in situ.Pre-embedded bolt on isolated footing passes through the prepared screw-bolt hole on suspension column end plate, by steel pipe Concrete column is bolted with concrete isolated footing, then concrete collar tie beam is overlapped on to pair of concrete isolated footing respectively Bian Shang forms linear type connecting node, and the collar tie beam of each collar tie beam indulges banding fixed between muscle infall reinforcing bar, in linear type connecting node Area forms steel reinforcement cage.
Third walks:Cast in situs node.Arrangement steel tube concrete column feet-isolated footing-concrete collar tie beam node pours mould Plate, progress node concrete or grouting material pour, and vibration compacting, and smooth out surface are carried out to packing material using the tool of vibrating Maintenance, forms a kind of assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node.
One the foregoing is merely the utility model is embodied case, but the application of the utility model is without being limited thereto. The selection of cited each scantling and material can select to transport according to actual needs in the utility model implementation process With will not enumerate herein.

Claims (8)

1. assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node, it is characterised in that:Including steel Pipe concrete column (1), suspension column end plate (2), concrete collar tie beam (3), collar tie beam indulge muscle (4), concrete isolated footing (5), pre-buried spiral shell Bolt (6), node formwork for placing (7) and linear type connecting node (8);It is welded with the steel core concrete column (1) of suspension column end plate (2) and mixes Solidifying soil isolated footing (5) is connected by pre-embedded bolt (6), and it is right that concrete collar tie beam (3) is overlapped on concrete isolated footing (5) respectively Bian Shang forms linear type connecting node;Configuration collar tie beam indulges muscle (4) in the concrete collar tie beam (3), and collar tie beam indulges muscle (4) from steel Pipe concrete column (1) both sides are stretched into linear type connecting node (8) region, and opposite side is overlapped on concrete isolated footing (5) Between collar tie beam, collar tie beam indulges banding fixed between muscle (4) infall reinforcing bar, forms node area steel reinforcement cage, node formwork for placing is arranged (7), it using concrete or grouting material, completes linear type connecting node (8) and fills, form assembly concrete-filled steel tube column-independence Basis-concrete collar tie beam linear type connecting node.
2. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:The steel core concrete column (1) is formed by the casting concrete in steel pipe after maintenance;Steel pipe used Section form be rectangular, rectangle or circle, rectangular, the rectangular steel pipe length of side and round steel pipe diameter are not less than 100mm.
3. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:Steel plate thickness used in the suspension column end plate (2) is not less than 6mm, and shape is rectangular or rectangle, is welded on Steel core concrete column (1) bottom;The bolt hole in aperture needed for connection pre-embedded bolt (6) is machined on suspension column end plate (2).
4. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:The collar tie beam indulges muscle (4) and uses spiral reinforcement.
5. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:The collar tie beam indulges muscle (4) along the elongated arrangement of collar tie beam and overhanging beam end section of going too far;When collar tie beam assembles, Collar tie beam is indulged muscle (4) and is stretched into linear type connecting node (8), but length is without departing from linear type connecting node (8) area size.
6. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:Described concrete isolated footing (5) the top surface pre-embedded bolt (6).
7. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:The pre-embedded bolt (6) is embedded in when making concrete isolated footing (5) in basis, and exposed anchor Gu length.
8. assembly concrete-filled steel tube column according to claim 1-isolated footing-concrete collar tie beam linear type connection section Point, it is characterised in that:The linear type connecting node (8) uses concrete or filling after arranging node formwork for placing (7) Filled therewith;Packing material intensity is not less than in steel core concrete column (1), concrete collar tie beam (3), concrete isolated footing (5) Concrete strength.
CN201820368025.0U 2018-03-19 2018-03-19 Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node Active CN208023734U (en)

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Application Number Priority Date Filing Date Title
CN201820368025.0U CN208023734U (en) 2018-03-19 2018-03-19 Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820368025.0U CN208023734U (en) 2018-03-19 2018-03-19 Assembly concrete-filled steel tube column-isolated footing-concrete collar tie beam linear type connecting node

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CN208023734U true CN208023734U (en) 2018-10-30

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