CN104314235A - Steel bone-steel tube recycled concrete combination post with L-shaped section - Google Patents

Steel bone-steel tube recycled concrete combination post with L-shaped section Download PDF

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Publication number
CN104314235A
CN104314235A CN201410590556.0A CN201410590556A CN104314235A CN 104314235 A CN104314235 A CN 104314235A CN 201410590556 A CN201410590556 A CN 201410590556A CN 104314235 A CN104314235 A CN 104314235A
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CN
China
Prior art keywords
steel
post
shaped
concrete
recycled concrete
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.)
Pending
Application number
CN201410590556.0A
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Chinese (zh)
Inventor
徐亚丰
吕丛丛
朱绍杰
王晓龙
陈谦
翟章琳
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Shenyang Jianzhu University
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Shenyang Jianzhu University
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Publication date
Application filed by Shenyang Jianzhu University filed Critical Shenyang Jianzhu University
Priority to CN201410590556.0A priority Critical patent/CN104314235A/en
Publication of CN104314235A publication Critical patent/CN104314235A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to a combination post with an L-shaped section in civil engineering. A steel bone-steel tube recycled concrete combination post with the L-shaped section consists of steel bones, a steel tube, a reinforcing steel bar skeleton and recycled concrete, wherein the steel bone is formed by welding steel plates and is positioned on a limb of an L-shaped post enclosed by stirrups; the steel tube is positioned in the core of the L-shaped post; the recycled concrete is filled in the L-shaped post enclosed by the stirrups 4 and in the steel tube; the steel bone 5 is welded into an L shape. A longitudinal reinforcing steel bar 1 is arranged at a corner part of the L-shaped post enclosed by the stirrups 4. The recycled concrete is positioned in and out of the steel tube, so that the aims of saving resources and protecting the environment are achieved; the reinforcing steel bar skeleton has a restraining effect on the concrete, so that the bearing capacity of the post is enhanced. The steel bone-steel tube recycled concrete combination post is a main component of a framework structure in a high-rise and large-span building, and has the characteristics of high bearing capacity, high rigidity, light weight, high plasticity, good toughness, impact resistance, fatigue resistance and seismic performance, high durability, energy conservation, environment friendliness and the like.

Description

Steel frame-steel pipe regeneration concrete L tee section coupled column
Technical field
The present invention relates to a kind of concrete component, particularly relating to a kind of for the concrete L shape post in civil engineering, is a kind of novel L tee section coupled column.
Background technology
Current social, along with the lifting of expanding economy and Living consumption, the requirement of people to house is more and more higher, especially more and more payes attention to building structure and room layout.Sectional dimension due to common concrete column is often greater than the thickness of body of wall, have impact on the use of the interior space, is difficult to meet building requirement attractive in appearance.In order to address this problem, there is the form of structure of L-shaped Reinforced Concrete Column.The advantage of L-shaped Reinforced Concrete Column structural system is more outstanding, and scholar both domestic and external, expert are to this has been extensive, deep research.The theoretical system of L-shaped Reinforced Concrete Column basically forms, and the provinces and cities such as such as Tianjin, Shenyang, Guangdong, Shanxi have completed writing of local code, and and guide in engineering practice, building area reaches tens million of square metres.
But along with the development of Super High and long span building structure, the shortcoming of pure L-shaped Reinforced Concrete Column is more and more outstanding.As being subject to the restriction of ratio of axial compressive force to axial compressive ultimate capacity of section, if still adopt ordinary reinforced concrete L shape post under larger load, the sectional dimension of post will be caused very large; The limb length of L shape post cannot be oversize, easily can produce shear lag phenomenon after post limb is long, and therefore usual length by the limb of L shape post is extended the deadline in certain proportion with limb; L shape post there occurs change due to section form, causes its mechanical characteristic also to there occurs change, and compared with ordinary rectangular post, supporting capacity and ductility decline all to some extent, and anti-seismic performance is unsatisfactory.
Simultaneously, in the present circumstance, the whole nation just has 1,360 ten thousand tons from the waste concrete in the building waste that old building removes every year, add the waste concrete that the building waste that annual newly constructed house produces 4,000 ten thousand tons produces, its huge disposal cost and the environmental problem caused thus also very outstanding.In order to reduce the exploitation to natural resource to greatest extent, must increase to greatest extent construction refuse regenerated utilization.Therefore the investigation and application of the process of building waste and application technology promote imperative.But, at present due to the inherence damage of regeneration aggregate and due to its adsorption the old mortar of one deck and the water absorption rate that causes is large, the intensity of the regeneration concrete causing it to be made into, comparatively ordinary concrete is poor for shrinkage and endurance quality etc., significantly limit its scope of application.
Therefore, herein under above-mentioned background, in order to promote the utilization of regeneration concrete, by analyzing the achievement in research in early stage, propose a kind of novel steel frame-steel pipe regeneration concrete L tee section coupled column, this kind of coupled column combines the advantage of L-shaped Reinforced Concrete Column, steel core concrete column, combined steel and concrete column, regeneration concrete post, alleviates resource pressure and environmental pressure, widen the application and development space of concrete L shape post greatly, there is very important Research Significance.
Summary of the invention
The object of this invention is to provide a kind of steel frame-steel pipe regeneration concrete L tee section coupled column; this Novel combined column not only improves the stress performance of ordinary reinforced concrete L shape post, and takes full advantage of discarded concrete, has accomplished effective utilization of refuse; save resource, protect environment.The present invention is achieved through the following technical solutions: the T steel bone of steel frame-steel pipe regeneration concrete L tee section coupled column is formed by Plate Welding, be positioned on the limb of L shape post, steel pipe is positioned at the center of post, first reinforcing bar and steel pipe are connected and fixed by welding or bolt when test specimen makes, then assembling reinforcement skeleton, formwork, builds regeneration concrete.It is characterized in that: the reinforcing bar be positioned on L shape post limb improves the stress performance in limb portion; The steel pipe being positioned at core place improves supporting capacity and the ductility of L shape post; Make full use of discarded building waste, form regeneration concrete, accomplish twice laid, energy conservation, environmental protection.
Advantage of the present invention and effect are:
1. make full use of discarded building waste, form regeneration concrete, accomplish twice laid, energy conservation, environmental protection;
2. steel pipe is positioned at the inside of direction concrete crossover sites in length and breadth, is subject to the protection of outer concrete, has good fire-resistant, decay resistance;
3. steel pipe inner concrete is in three-phase pressured state, improve the ultimate bearing capacity of pillar, is the application exhaust space of high-strength concrete;
4. reinforcing bar is positioned at the limb portion of L shape post, improves the stress performance in limb portion;
5. can first construct reinforcing bar, steel pipe, reinforcing bar, steel pipe are connected and fixed at bottom welding or bolt, then muscle and stirrup are indulged in colligation, pour into a mould regeneration concrete after forming skeleton, thus form superposed column;
7., because the existence of reinforcing bar, steel pipe improves the ductility of post, improve the ultimate bearing capacity of post, be conducive to earthquake zone seismic design;
8. widen the application and development space of concrete L shape post, beautify architectural appearance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of steel frame-steel pipe regeneration concrete L tee section coupled column.
Be made up of reinforcing bar, steel pipe, regeneration concrete and cage of reinforcement, to be wherein positioned at steel pipe inside and outside for regeneration concrete, and reinforcing bar is positioned on the four limbs of L shape post, and steel pipe is positioned at the center of L shape post, and cage of reinforcement is in the surrounding of L shape post.In figure: 1 is longitudinal reinforcement, 2 is regeneration concrete, and 3 is steel pipe, and 4 is stirrup, and 5 is reinforcing bar.
Detailed description of the invention
The present invention is that steel frame-steel pipe regeneration concrete L tee section coupled column is made up of reinforcing bar, steel pipe, cage of reinforcement and regeneration concrete, reinforcing bar 5 is formed by Plate Welding, reinforcing bar is positioned on the limb of the L shape post that stirrup 4 surrounds, steel pipe 3 is positioned at the core of L shape post, is filled with regeneration concrete in the L shape post that stirrup 4 surrounds and in steel pipe 3.Reinforcing bar 5 is welded into T-shaped.Longitudinal reinforcement 1 is equipped with in the bight of the L shape post that stirrup 4 surrounds.
Concrete technology is as follows:
1. according to the rules Plate Welding is become reinforcing bar;
2. reinforcing bar and steel-pipe welding or bolt are connected and fixed, and keep vertical or certain angle;
3. assembling reinforcement skeleton;
4. in cage of reinforcement lateral branch template;
5. the regeneration concrete fragment of certain proportion, certain size and cement etc. are fully stirred, form regeneration concrete;
6. pour into a mould regeneration concrete;
7. periodic maintenance;
8. arrive regulation maintenance day after date, form removal is shaping.

Claims (3)

1. steel frame-steel pipe regeneration concrete L tee section coupled column, feature be: be made up of reinforcing bar, steel pipe, cage of reinforcement and regeneration concrete, reinforcing bar (5) is formed by Plate Welding, reinforcing bar is positioned on the limb of the L shape post that stirrup (4) surrounds, steel pipe (3) is positioned at the core of L shape post, is filled with regeneration concrete in the L shape post that stirrup (4) surrounds and in steel pipe (3).
2. the steel frame-steel pipe regeneration concrete L tee section coupled column according to right 1, is characterized in that: reinforcing bar (5) is welded into T-shaped.
3. the steel frame-steel pipe regeneration concrete L tee section coupled column according to right 1, is characterized in that: longitudinal reinforcement (1) is equipped with in the bight of the L shape post that stirrup (4) surrounds.
CN201410590556.0A 2014-10-29 2014-10-29 Steel bone-steel tube recycled concrete combination post with L-shaped section Pending CN104314235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410590556.0A CN104314235A (en) 2014-10-29 2014-10-29 Steel bone-steel tube recycled concrete combination post with L-shaped section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410590556.0A CN104314235A (en) 2014-10-29 2014-10-29 Steel bone-steel tube recycled concrete combination post with L-shaped section

Publications (1)

Publication Number Publication Date
CN104314235A true CN104314235A (en) 2015-01-28

Family

ID=52369536

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410590556.0A Pending CN104314235A (en) 2014-10-29 2014-10-29 Steel bone-steel tube recycled concrete combination post with L-shaped section

Country Status (1)

Country Link
CN (1) CN104314235A (en)

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Application publication date: 20150128