CN203684405U - Polypropylene fiber reinforcement special-shaped column joint - Google Patents
Polypropylene fiber reinforcement special-shaped column joint Download PDFInfo
- Publication number
- CN203684405U CN203684405U CN201320896322.XU CN201320896322U CN203684405U CN 203684405 U CN203684405 U CN 203684405U CN 201320896322 U CN201320896322 U CN 201320896322U CN 203684405 U CN203684405 U CN 203684405U
- Authority
- CN
- China
- Prior art keywords
- concrete
- special
- shaped column
- polypropylene fiber
- column
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model belongs to the technical field of reinforced concrete building structures, and relates to a polypropylene fiber reinforcement special-shaped column joint used for connecting a special-shaped column and frame beams. Concrete is poured into the special-shaped column and the frame beams connected with the two sides of the special-shaped column, polypropylene fiber reinforced concrete is poured in a special-shaped column area, and the distance from the interface of the polypropylene fiber reinforced concrete and the concrete poured in the frame beams to a beam column interface is twice a beam height. The polypropylene fiber reinforced concrete is used for taking the place of common concrete of a core area of the special-shaped column, so that the problem that earthquake resistance of a concrete special-shaped column joint is poor can be well solved, and besides, the earthquake resistance of a concrete special-shaped column structure is improved by improving local stress performance.
Description
Technical field
The utility model belongs to reinforced concrete buildings technical field, relates to a kind of cast-in-place ordinary reinforced concrete hetermorphiscal column node.
Background technology
Cross-sectional geometry is L shaped, T shape and cross, and the ratio of height to thickness of the each limb in cross section is not more than 4 post and is called hetermorphiscal column.The structure being made up of hetermorphiscal column and beam is called Framed Structure with Special-Shaped Columns.This structure is a kind of structural system progressively forming from the development of the twentieth century housing construction seventies, this type of system obtains increasingly extensive application and concern in recent years, it has following outstanding feature: using the light block as infilled wall, side column is T shape, and center pillar is cross, corner post is L shaped, post limb fills wall with thick with adding, the indoor corner angle that do not occur evagination, thus save architectural space, improve architectural effect, for architectural design and use function flexibility and convenience are provided; Simultaneously in conjunction with wall reform; adopt insulation, heat insulation, lightweight, materials for wall is as infilled wall and the internal partition wall of framework efficiently; replace traditional fired common brick wall, with implement country about energy conservation, save soil, utilize the fundamental state policy of waste material, protection of the environment.
Study and show both at home and abroad, the bean column node of reinforced concrete frame structure is a weak link of structural seismic, and its destruction is the one of the main reasons that causes building destruction.And RC frame with special-shaped is because pillar cross section depth-width ratio is large and beam column junction reinforcing bar is intensive, concrete is not easy the reasons such as vibration compacting, make hetermorphiscal column bean column node seem weaker than rectangular column node, its earthquake is even more serious, has limited the application height of special-shaped column structure.According to national sector standard " concrete profiled pile structure technology code " regulation (JGJ149-2006), providing fortification against earthquakes is that the maximum height of house that 7 degree area special-shaped column structures are suitable for is 18 meters, and providing fortification against earthquakes is that the maximum height of house that 8 degree area special-shaped column structures are suitable for is 12 meters.The problem of these bean column node weaknesses has limited the range of application of special-shaped column structure.
Utility model content
The purpose of this utility model is the above-mentioned deficiency that overcomes prior art, and the hetermorphiscal column node that a kind of anti-seismic performance is good is provided.The technical solution of the utility model is as follows:
A kind of polypropylene fibre strengthens hetermorphiscal column node, be used for connecting hetermorphiscal column and Vierendeel girder, in the Vierendeel girder being connected with both sides in hetermorphiscal column, be cast with concrete, the polypropylene fiber reinforced concrete being cast with in hetermorphiscal column node area, in polypropylene fiber reinforced concrete and Vierendeel girder, the concrete interface of cast is apart from one times of deck-molding of beam column interface.
Polypropylene fibre is highly stable under concrete alkali condition, there is good dispersiveness, be better than other fibers in all many-sides such as mechanical performance, operating performance, the ratios of performance to price, polypropylene fiber concrete is compared ordinary concrete and is had the advantages such as tensile strength is high, density is good, is conducive to improve concrete cracking resistance and anti-seismic performance.The utility model utilizes polypropylene fiber concrete to replace the ordinary concrete of hetermorphiscal column joint cores, not only can well improve the weak problem of concrete profiled pile Seismic Behavior, and can be by improving local pressure performance, improve the anti-seismic performance of concrete profiled rod structure, significant to expanding the range of application that is applied in antidetonation area of concrete profiled rod structure.
Brief description of the drawings
Fig. 1 is the side cross-sectional view of the utility model fibre reinforced concrete hetermorphiscal column node.
Fig. 2 is the sectional top view of the utility model fibre reinforced concrete hetermorphiscal column node.
Note: filling hetermorphiscal column beam column node area, position and adjacent one times of deck-molding scope adopt fibrous concrete to build, does not fill position beam column and adopts ordinary concrete to build
1: hetermorphiscal column 2: hetermorphiscal column node area 3: Vierendeel girder 4: ordinary concrete
5: polypropylene fiber reinforced concrete 6: post is indulged muscle 7: column tie-bar
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described.
Fibre reinforced concrete hetermorphiscal column bean column node of the present utility model is used for connecting ordinary concrete hetermorphiscal column 1 and Vierendeel girder 3(Fig. 1 does not fill position), fibrous concrete hetermorphiscal column bean column node 1 and adjacent one times of deck-molding scope (Fig. 1,2 fills position) simultaneously pouring construction form.When construction, first press ordinary concrete hetermorphiscal column bean column node 1 construction method colligation template, while building, ordinary concrete 4 is jointly built and is vibrated with fibrous concrete 5, after vibration compacting, remove the reserved baffle plate of both boundarys, after the two freely mixes, be pre-fibre reinforced concrete hetermorphiscal column bean column node 1(Fig. 1,2).
Construction sequence is as follows: first assembling reinforcement, in reinforcing bar binding process, should note ensureing reinforcing bar model, quantity, position correct and " Code for design of concrete structures " (GB50010-2010) and " concrete profiled pile structure technology code " connection anchoring structure measure of (JGJ149-2006) requiring etc.
Carry out afterwards the making of template, because hetermorphiscal column post limb is thinner, template size is less, and also compared with normal construction is restive for protective layer thickness, therefore construction precision is had relatively high expectations.
After template support, carry out concrete building.In construction, notice that bean column node ordinary concrete and fibrous concrete intersection adopt baffle plate to isolate in advance, baffle plate is apart from one times of deck-molding of beam column interface, and the ordinary concrete of the Vierendeel girder that hetermorphiscal column is connected with both sides adopts commercial concrete directly to build.
When building ordinary concrete, prepare fibrous concrete.Need to prepare separately one, metal bucket, in building ordinary concrete, by fiber and ordinary concrete in proportion (fiber volume rate 0.1%) throw in to metal bucket, fiber layering is sprinkled into, stir and evenly scatter to fiber for 5-10 minute, manually build fibrous concrete, after fibrous concrete and ordinary concrete are built respectively and vibrated, extract baffle plate, the two is fully mixed.
Make respectively the fiber reinforcement hetermorphiscal column specimen joints of same size, arrangement of reinforcement and with same condition under the test of ordinary concrete hetermorphiscal column specimen joints under Frequency Cyclic Static Loading, the identical test loading method that code requirement specifies is to having or not fiber reinforcement hetermorphiscal column node to test respectively.Have or not the pseudo-static experimental of fibre-reinforced hetermorphiscal column node under same condition found that by contrast, after fiber reinforcement, hetermorphiscal column shear bearing capacity of joint is significantly improved, fiber has obvious humidification to shear bearing capacity of joint, and polypropylene fibre improves 25%～42% to shear bearing capacity of joint (cutting pressure ratio).The displacement Ductility of hetermorphiscal column node under course under cyclic loading is general all more than 3.5, can meet shockproof requirements.
Claims (1)
1. a polypropylene fibre strengthens hetermorphiscal column node, be used for connecting hetermorphiscal column and Vierendeel girder, in the Vierendeel girder being connected with both sides in hetermorphiscal column, be cast with concrete, the polypropylene fiber reinforced concrete being cast with in hetermorphiscal column node area, in polypropylene fiber reinforced concrete and Vierendeel girder, the concrete interface of cast is apart from one times of deck-molding of beam column interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320896322.XU CN203684405U (en) | 2013-12-31 | 2013-12-31 | Polypropylene fiber reinforcement special-shaped column joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320896322.XU CN203684405U (en) | 2013-12-31 | 2013-12-31 | Polypropylene fiber reinforcement special-shaped column joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684405U true CN203684405U (en) | 2014-07-02 |
Family
ID=51006328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320896322.XU Expired - Fee Related CN203684405U (en) | 2013-12-31 | 2013-12-31 | Polypropylene fiber reinforcement special-shaped column joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908844A (en) * | 2016-04-15 | 2016-08-31 | 浙江工业大学 | Method for improving anti-seismic property of RC Z-shaped cross section column frame node |
| CN107842107A (en) * | 2017-11-29 | 2018-03-27 | 长安大学 | A kind of part uses the profile steel concrete column steel beam joint of fibre reinforced concrete |
-
2013
- 2013-12-31 CN CN201320896322.XU patent/CN203684405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908844A (en) * | 2016-04-15 | 2016-08-31 | 浙江工业大学 | Method for improving anti-seismic property of RC Z-shaped cross section column frame node |
| CN107842107A (en) * | 2017-11-29 | 2018-03-27 | 长安大学 | A kind of part uses the profile steel concrete column steel beam joint of fibre reinforced concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103343572B (en) | The agriculture of prefabricated combined wall board earthquake-proof energy-saving occupies structural system | |
| CN103046665B (en) | Insulating mortar strengthening layer rowlock wall with steel wire mesh for setting hose tooth constructional column and manufacturing method thereof | |
| CN103741958B (en) | A kind of peripheral hardware assembled minor structure reinforces the method for existing building | |
| CN103850350A (en) | Prefabricated, assembled and integrated type special-shaped column structure and jointing construction method thereof | |
| CN201809864U (en) | Anti-seismic superimposed slab shear wall with T-shaped connecting member | |
| CN105839813A (en) | Assembly type thermal insulation energy saving wall board with groovechannel steel connection piece, and manufacture method thereof | |
| CN203393895U (en) | Novel prefabricated composite reinforced concrete wall board member | |
| CN207110165U (en) | A kind of prefabricated superimposed sheet of cast-in-place concrete for filling Cavity structural member | |
| CN106869567A (en) | A kind of energy-dissipating type cold-formed thin-walled steel pipe concrete Lateral Resistant System | |
| CN203808235U (en) | Integral fabricated precast special-shaped column structure | |
| Baker et al. | The design and construction of the world’s tallest building: the Burj Khalifa, Dubai | |
| CN202202412U (en) | Rectangular steel pipe concrete special-shaped column-steel beam framework middle node | |
| KR20120115641A (en) | Form-free both insulation wall | |
| CN208056095U (en) | I-shaped precast concrete and its compound soil-baffling structure of assembled cabin format | |
| CN203684405U (en) | Polypropylene fiber reinforcement special-shaped column joint | |
| CN205776349U (en) | A kind of stand alone type brick setting antidetonation cave dwelling | |
| CN201649354U (en) | Anti-seismic laminated plate type shear wall with I-shaped connecting component | |
| CN107816126A (en) | A kind of embedded prefabricated post of assembly concrete and prefabricated balcony | |
| CN104818784B (en) | Thin-wall steel pipe concrete frame-light steel light concrete combined shear wall and construction method thereof | |
| CN203684406U (en) | Steel fiber reinforcing special-shaped column joint | |
| CN108625491B (en) | Assembled H profile steel column-isolated footing-concrete collar tie beam L shape connecting node | |
| CN208884845U (en) | A kind of steel core concrete column that side plate is put more energy into | |
| CN103556754A (en) | Single-line reinforcement thermal insulation bearing shear wall with T-shaped hidden posts at end parts and manufacturing method of shear wall | |
| CN103556755A (en) | Single-line reinforcement thermal insulation bearing shear wall with L-shaped hidden posts at end parts and manufacturing method of shear wall | |
| CN203514534U (en) | Steel channel web inserted type connection joint structure between steel girders and square concrete-filled steel-tubular column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |