CN108412036B - Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node - Google Patents

Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node Download PDF

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Publication number
CN108412036B
CN108412036B CN201810223340.9A CN201810223340A CN108412036B CN 108412036 B CN108412036 B CN 108412036B CN 201810223340 A CN201810223340 A CN 201810223340A CN 108412036 B CN108412036 B CN 108412036B
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China
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concrete
collar tie
tie beam
isolated footing
profile steel
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CN201810223340.9A
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CN108412036A (en
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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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    • 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
    • E04B1/19Three-dimensional framework structures
    • E04B1/1903Connecting nodes specially adapted therefor

Abstract

The invention belongs to fabricated construction node manufacture technology fields in structural engineering, and in particular to a kind of assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node.Element factory is prefabricated in the present invention, assembled in situ, wherein H profile steel column is bolted with concrete isolated footing, concrete collar tie beam is overlapped on respectively on the four edges of isolated footing, form cross connecting node, each collar tie beam indulges binding and fixing between muscle infall reinforcing bar, steel reinforcement cage is formed in cross connecting node area, cross connecting node construction site pours, the connection of its cast-in-place node form is reliable, make adjacent collar tie beam and H profile steel 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

Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node
Technical field:
The invention belongs to fabricated construction node manufacture technology fields in structural engineering, and in particular to a kind of assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node and the practice.
Background technique:
In recent years, structure with assembled lightweight steel house is developed rapidly, and compared with traditional residential structure, assembled is light Steel house has the advantage that 1) light-weight structure residence standard width of a room in an old-style house size is larger, and wall is mostly non-load bearing wall, space layout spirit It lives, integration degree is high.2) from heavy and light, so that the geological process that structure with assembled lightweight steel house is born in earthquake is smaller, energy The feature that steel strength is high, ductility is good, plastic deformation ability is strong is given full play to, the anti-seismic performance of house and safe and reliable is improved Property.Lighter quality can also reduce the expense of foundation cost and transport, installation.3) green, environmental protection, energy conservation, sustainable development Exhibition.Assembling type steel structure house will not generate a large amount of waste entrainment environment instead work in production, building course Factory's processing, assembled in situ reduce the workload and construction noise at scene while reducing energy consumption.4) the light steel knot of assembled The characteristics of structure house prefabrication, in-site installation, mechanization production and installation, construction period is short, product quality is high.
Currently, China is in novel urbanization, new countryside construction flourishes period, as national is vigorously advocated, Develop building industrialization, housing industrialization (especially structure with assembled lightweight steel dwelling house system) is construction industry transformation traditional construction mould Formula there is an urgent need to, even more the villages and small towns agriculture room that has a large capacity and a wide range of adaptation China build there is an urgent need to.Lightweight steel construction system introduces village The low multi-storey building in town industrializes field, using the superior mechanical property of lightweight steel construction, has to the anti-seismic performance for improving agriculture room Very positive meaning.
The main supporting member of structure with assembled lightweight steel house is all made of thin-wall steel tube and light-duty hot-rolled steel section, lightweight steel construction Frame column mostly uses H profile steel column.For structure with assembled lightweight steel, effective anchor of prefabricated buildings and base foundation how is carried out Gu being the key that effectively to transmit load between prefabricated buildings and basis, play structural-load-carrying capacity.Therefore, how H-type is carried out Reliable anchoring between steel column, basis and main structure carries out the effective protection of suspension column, avoids suspension column corrosion of steel, is H profile steel column The key of working performance can be played well in low multilayer rural housing structure.
Summary of the invention
The present invention provides a kind of assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node and works Method, each structural elements prefabrication in the present invention, construction site assembly are poured after node, by the collar tie beam of cross overlap joint arrangement with Column, the reliable anchoring in basis together, while effective protection suspension column, avoiding suspension column corrosion of steel, and simple structure 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 development.
To achieve the above object, the present invention adopts the following technical scheme:
Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node, including H profile steel 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) and cross connecting node (7);The H profile steel column (1) for being welded with suspension column end plate (2) is connect with concrete isolated footing (5) by pre-embedded bolt (6), concrete Collar tie beam (3) is overlapped on respectively on (5) four side of concrete isolated footing, forms cross connecting node;The concrete collar tie beam (3) configuration collar tie beam indulges muscle (4) in, and collar tie beam is indulged muscle (4) from H profile steel column (1) two sides, protruded into cross connecting node (7) region, For four edge laps between the collar tie beam on concrete isolated footing (5), collar tie beam indulges binding and fixing between muscle (4) infall reinforcing bar, is formed Node area steel reinforcement cage is completed cross connecting node (7) filling, is formed assembled H profile steel column-using concrete or grouting material Isolated footing-concrete collar tie beam cross connecting node.
The assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node, it is characterised in that:
The H profile steel column (1) pricks fashioned iron using H-type heat, and the edge of a wing and web height are not less than 100mm.
Suspension column end plate (2) shape is rectangular or rectangle, and thickness takes not less than 6mm, is welded on H profile steel column (1) bottom Portion.Prepared screw-bolt hole on suspension column end plate (2), the pre-embedded bolt (7) on concrete isolated footing (6) pass through on suspension column end plate (2) Prepared screw-bolt hole, H profile steel column (1) and concrete isolated footing (6) are reliably connected.
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 (5) four sides of vertical basis, cross connecting node is formed.
The collar tie beam indulges muscle (4) and uses spiral reinforcement, and collar tie beam indulges muscle (4) along the elongated arrangement of collar tie beam and stretches 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) across H profile steel column (1) node area is goed deep into two sides, and extension is without departing from cross connecting node (7) area size, to guarantee that node area pours When, the not exposed egress area of reinforcing bar.The collar tie beam of each collar tie beam indulges binding and fixing between muscle (4) infall reinforcing bar, connects and saves in cross Point (7) 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).
It is mixed that regeneration can be used according to actual requirement of engineering in the concrete collar tie beam (3) and concrete isolated footing (5) Solidifying soil.
The pre-embedded bolt (6) is embedded in basis when making concrete isolated footing (5), and according to Practical Project Exposed certain anchoring distance.
The cross connecting node (7) is poured using the building packing material such as concrete or grouting material.Filling The strength of materials is not less than concrete strength in concrete collar tie beam (3), concrete isolated footing (5).Cross connecting node (7) is applied H profile steel column (1), concrete collar tie beam (3), concrete isolated footing (5) are firmly poured together, are allowed to by work field cast-in-place It is neat as one, the globality of structure is increased, influence of the foundation uneven settlement to structure is mitigated.Meanwhile effective guarantor Suspension column has been protected, suspension column corrosion of steel is avoided.
Compared with prior art, assembled H profile steel column-isolated footing-concrete collar tie beam cross of the invention connects section Point has the advantage that
(1) present invention is the production method of prefabricated member node, H profile steel 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 construct, and is significantly reduced Worker's operation intensity reduces the engineering amount of labour used, efficiently shortens the construction time, be suitble to promote and apply in low multilayer rural housing structure, 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, is overlapped to form steel reinforcement cage in cross connecting node area, and packing material is cast-in-place, will Bottom structure component H profile steel column, concrete isolated footing, concrete collar tie beam pour integral, form strong node, increase bottom The globality of 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 transmitting 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, 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 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 H profile steel column light steel frame, 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 on collar tie beam.
(6) H profile steel suspension column is wrapped in node region by fill concrete or grouting material etc., and suspension column is made to be isolated from the outside, Suspension column is protected, suspension column corrosion of steel is avoided.Meanwhile the packing materials such as concrete, grouting material have good flameproof effect, it can be with Make up the disadvantage of steel fire resistance property difference.
Detailed description of the invention:
Fig. 1 is assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node manufacturing process fragmentary detail view; (a) collar tie beam overlap joint (b) node pours;
Fig. 2 is prefabricated H profile steel 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 assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node assembling plan view;
Fig. 6 is assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node overall schematic.
In figure: 1-H steel column;2- suspension column end plate;3- concrete collar tie beam;4- collar tie beam indulges muscle;5- concrete isolated footing;6- Pre-embedded bolt;7- cross connecting node.
Specific embodiment:
Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node in invention, in conjunction with attached drawing 1~6 Illustrate the present invention the production method is as follows:
Step 1: prefabrication H profile steel column, concrete collar tie beam and concrete isolated footing.At column bottom when H profile steel column production Welding has the suspension column end plate of bolt hole;When concrete collar tie beam makes, collar tie beam indulges muscle and uses spiral reinforcement, along the elongated arrangement of collar tie beam And overhanging beam end section of going too far, extension is without departing from cross connecting node area size;The production of concrete isolated footing When basis top surface pre-embedded bolt.
Step 2: assembled in situ.Pre-embedded bolt on isolated footing passes through the prepared screw-bolt hole on suspension column end plate, by H-type Steel column is bolted with concrete isolated footing, then concrete collar tie beam is overlapped on to four sides of concrete isolated footing respectively On, cross connecting node is formed, the collar tie beam of each collar tie beam indulges binding and fixing between muscle infall reinforcing bar, in cross connecting node area Form steel reinforcement cage.
Step 3: carrying out pouring for node concrete or grouting material, packing material vibrate using the tool of vibrating close It is real, and smooth out surface conserves, and forms a kind of assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node.
The foregoing is merely a specific implementation case of the invention, but it is of the invention using without being limited thereto.In the present invention The selection of cited each scantling and material can select to use according to actual needs in implementation process, not another herein One enumerates.

Claims (9)

1. assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node, it is characterised in that: including H profile steel 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) and cross Shape connecting node (7);The H profile steel column (1) and concrete isolated footing (5) for being welded with suspension column end plate (2) are connected by pre-embedded bolt (6) It connects, concrete collar tie beam (3) is overlapped on respectively on (5) four side of concrete isolated footing, forms cross connecting node;Described is mixed Configuration collar tie beam indulges muscle (4) in solidifying pedosphere beam (3), and collar tie beam indulges muscle (4) from H profile steel column (1) two sides, protrudes into cross connecting node (7) in region, between the collar tie beam on concrete isolated footing (5), collar tie beam is bound four edge laps between indulging muscle (4) infall reinforcing bar It is fixed, node area steel reinforcement cage is formed, using concrete or grouting material, cross connecting node (7) filling is completed, forms assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node.
2. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: H profile steel column (1) edge of a wing and web height are not less than 100mm.
3. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: 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 H profile steel column (1) bottom;The bolt hole in aperture needed for being machined with connection pre-embedded bolt (6) on suspension column end plate (2).
4. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: the collar tie beam indulges muscle (4) and uses spiral reinforcement.
5. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: 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 vertical Muscle (4) protrudes into cross connecting node (7), but length is without departing from cross connecting node (7) area size.
6. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: described concrete isolated footing (5) the top surface pre-embedded bolt (6).
7. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: the pre-embedded bolt (6) is embedded in basis when making concrete isolated footing (5), and exposed anchorage length.
8. assembled H profile steel column according to claim 1-isolated footing-concrete collar tie beam cross connecting node, special Sign is: the cross connecting node (7) is filled using concrete or grouting material;Packing material intensity is not less than concrete Concrete strength in collar tie beam (3), concrete isolated footing (5).
9. assembled H profile steel column according to any one of claims 1 to 8-isolated footing-concrete collar tie beam cross connects Connect node, which is characterized in that its production method is as follows:
Step 1: prefabrication H profile steel column, concrete collar tie beam and concrete isolated footing, the processing bolt hole on suspension column end plate, Suspension column end plate is welded on H profile steel column column bottom, in concrete isolated footing end face pre-embedded bolt;
Step 2: H profile steel column, concrete collar tie beam and concrete isolated footing assembled in situ, the pre-embedded bolt on isolated footing is worn The prepared screw-bolt hole on suspension column end plate is crossed, H profile steel column and concrete isolated footing are bolted, then by concrete collar tie beam point It is not overlapped on four sides of concrete isolated footing, the collar tie beam of each collar tie beam indulges binding and fixing between muscle infall reinforcing bar;
Step 3: carrying out pouring for node concrete or grouting material, vibration compacting is carried out to packing material using the tool of vibrating, and Smooth out surface maintenance, forms a kind of assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node.
CN201810223340.9A 2018-03-19 2018-03-19 Assembled H profile steel column-isolated footing-concrete collar tie beam cross connecting node Active CN108412036B (en)

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Publication number Priority date Publication date Assignee Title
CN113250228B (en) * 2021-05-08 2022-07-15 武汉建工集团股份有限公司 Construction method of embedded foundation fixing device of multi-story building steel reinforced concrete core tube structure

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JP2002129661A (en) * 2000-10-24 2002-05-09 Kajima Corp Structure for connecting reinforced concrete pillar and steel frame beam
CN202248298U (en) * 2011-09-27 2012-05-30 深圳市建筑设计研究总院有限公司 Node of steel reinforced concrete framework
CN202990118U (en) * 2012-12-24 2013-06-12 深圳市市政设计研究院有限公司 Beam-column joint for concrete-filled steel tube composite column and reinforced concrete ring beam
CN203961025U (en) * 2014-05-29 2014-11-26 浙江精工钢结构集团有限公司 The cross reinforcing bar external circular type of SRC post connects muscles and joints-vital links in a speech point
CN204282530U (en) * 2014-11-26 2015-04-22 天津港航工程有限公司 Adopt the industrial premises frame construction of prefabricated concrete column structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002129661A (en) * 2000-10-24 2002-05-09 Kajima Corp Structure for connecting reinforced concrete pillar and steel frame beam
CN202248298U (en) * 2011-09-27 2012-05-30 深圳市建筑设计研究总院有限公司 Node of steel reinforced concrete framework
CN202990118U (en) * 2012-12-24 2013-06-12 深圳市市政设计研究院有限公司 Beam-column joint for concrete-filled steel tube composite column and reinforced concrete ring beam
CN203961025U (en) * 2014-05-29 2014-11-26 浙江精工钢结构集团有限公司 The cross reinforcing bar external circular type of SRC post connects muscles and joints-vital links in a speech point
CN204282530U (en) * 2014-11-26 2015-04-22 天津港航工程有限公司 Adopt the industrial premises frame construction of prefabricated concrete column structure

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