CN104453094A

CN104453094A - Steel skeleton-steel tube glass concrete combined column with L-shaped section

Info

Publication number: CN104453094A
Application number: CN201410595093.7A
Authority: CN
Inventors: 徐亚丰; 朱绍杰; 吕丛丛; 陈谦; 翟章琳; 李日亮; 曾俊
Original assignee: Shenyang Jianzhu University
Current assignee: Shenyang Jianzhu University
Priority date: 2014-10-30
Filing date: 2014-10-30
Publication date: 2015-03-25

Abstract

The invention relates to an L-shaped combined column used in civil engineering. A steel skeleton-steel tube glass concrete combined column with an L-shaped section is composed of a steel skeleton, a steel tube, a steel reinforcement framework and glass concrete and is characterized in that the steel skeleton is formed by welding steel plates; the steel skeleton is located on limbs of the L-shaped column enclosed by using a stirrup; the steel tube is located in the core of the L-shaped column; and the L-shaped column enclosed by using the stirrup and the steel tube are filled with the glass concrete containing broken glass serving as an aggregate. The steel skeleton is welded to be T-shaped. The glass concrete contains crude glass aggregates with the particle sizes of 5-30mm and fine glass aggregates with the particle sizes of 0.1-3mm. Due to the adoption of the glass concrete, the corrosion resistance of the column can be effectively improved, the resources are saved, and the environment is protected; and the steel skeleton-steel tube glass concrete combined column with the L-shaped section is used as a main structural member of a frame structure in a high-rise building or a long-span building, and has the characteristics of favorable earthquake resistance, good durability, energy saving, environment friendliness and the like.

Description

Steel frame-steel pipe glascrete 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 pillar 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, because scrap glasses a large amount of in recent years produces, define huge household garbage and industrial waste, the scrap glass that China produces every year has according to statistics accounted for the 3%-5% of municipal refuse total amount, cause the serious wasting of resources, add our environmental pressure.Along with the exhaustion day by day of natural concrete aggregate, becoming increasingly conspicuous of resources and environment problem, using scrap glass as gathering materials to come concrete batching not only Appropriate application resource, and compared with common concrete, glascrete also has good erosion-resisting characteristics, effectively improves concrete durability.

Therefore, herein under above-mentioned background, propose a kind of novel steel frame-steel pipe glascrete L shape coupled column, this kind of combination pillar combines the advantage of L-shaped Reinforced Concrete Column, steel core concrete column, combined steel and concrete column, glascrete post, alleviate 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 glascrete L shape coupled column; this Novel combined column not only improves the stress performance of ordinary reinforced concrete L shape post, and takes full advantage of scrap glass, 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 glascrete L shape 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 glascrete.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; Containing the glass fragment serving as aggregate in concrete, improve concrete corrosion resistance; Due to the existence of peripheral glascrete, improve the fire resistance of coupled column.

Serve as the glass fragment of aggregate in concrete, be divided into particle diameter at 5mm ~ 30mm and the particle diameter glass fragment at 0.1mm ~ 3mm, respectively as coarse aggregate in glascrete and fines.According to every cubic metre of glascrete volume, coarse aggregate glass weight 300kg ~ 1500kg, fines glass weight 300kg ~ 1500kg, cement 400 kg ~ 600 kg, the ratio of water 150 kg ~ 300 kg fully stirs.Glass is too much not all right, can affect the intensity of glascrete, very few also not all right.

Advantage of the present invention and effect are:

1. make full use of scrap glass, accomplish to turn waste into wealth, 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 on the limb of L shape post, improves limb portion stress performance;

5. the erosion-resisting characteristics of glascrete is higher than ordinary concrete, improves durability and the safety of structure;

6. 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, form cast glass concrete after 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 L-shaped Reinforced Concrete Column, beautify architectural appearance.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of steel frame-steel pipe glascrete L shape coupled column.

Be made up of reinforcing bar, steel pipe, glascrete and cage of reinforcement, to be wherein positioned at steel pipe inside and outside for glascrete, and reinforcing bar is positioned on two limbs of L shape post, the center that two limbs that steel pipe is positioned at L shape post intersect, and cage of reinforcement is in the surrounding of L shape post.In figure: 1 is longitudinal reinforcement, 2 is glascrete, and 3 is steel pipe, and 4 is stirrup, and 5 is reinforcing bar.

Detailed description of the invention

3. steel frame-steel pipe glascrete L tee section coupled column of the present invention, be made up of reinforcing bar, steel pipe, cage of reinforcement and glascrete, reinforcing bar is formed by Plate Welding, reinforcing bar is positioned on the limb of the L shape post that stirrup surrounds, steel pipe is positioned at the core of L shape post, is full of the glass fragment glascrete containing serving as aggregate in the L shape post that stirrup surrounds and in steel pipe.Reinforcing bar is welded into T-shaped.Vertical reinforcement 1 is equipped with in bight in the L shape post that stirrup 4 surrounds.Described glascrete comprises particle diameter at the raw glass aggregate of 5mm ~ 30mm and the particle diameter thin glass aggregate at 0.1mm ~ 3mm; According to every cubic metre of glascrete volume, coarse aggregate glass weight 300kg ~ 1500kg, fines glass weight 300kg ~ 1500kg, cement 400 kg ~ 600 kg, the ratio of water 150 kg ~ 300 kg fully stirs; Described glascrete comprises simple substance glass, organic glass and unorganic glass.Above-mentioned concrete ratio is through the ratio that experiment repeatedly draws.Also do not apply the introduction of glascrete.

Concrete technology is as follows:

According to the rules Plate Welding is become reinforcing bar;

1. reinforcing bar and steel-pipe welding or bolt are connected and fixed, and keep vertical or certain angle;

2. assembling reinforcement skeleton;

3. in cage of reinforcement lateral branch template;

4. make particle diameter at 5mm ~ 30mm and the particle diameter glass fragment at 0.1mm ~ 3mm, respectively as coarse aggregate in glascrete and fines;

5. according to every cubic metre of glascrete volume, coarse aggregate glass weight 300kg ~ 1500kg, fines glass weight 300kg ~ 1500kg, cement 400 kg ~ 600 kg, the ratio of water 150 kg ~ 300 kg fully stirs, and forms glascrete;

6. cast glass concrete;

7. periodic maintenance;

8. arrive regulation maintenance day after date, form removal is shaping.

Claims

1. steel frame-steel pipe glascrete L tee section coupled column, be made up of reinforcing bar, steel pipe, cage of reinforcement and glascrete, it is characterized in that: reinforcing bar (5) is formed by Plate Welding, reinforcing bar (5) 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 full of the glass fragment glascrete (2) containing serving as aggregate in the L shape post that stirrup (4) surrounds and in steel pipe (5).

2., according to the steel frame-steel pipe glascrete L tee section coupled column described in claim 1, it is characterized in that: reinforcing bar (5) is welded into T-shaped.

3., according to the steel frame-steel pipe glascrete L tee section coupled column described in claim 1, it is characterized in that: vertical reinforcement (1) is equipped with in the bight in the L shape post that stirrup (4) surrounds.

4. according to the steel frame-steel pipe glascrete L tee section coupled column described in claim 1, it is characterized in that: described glascrete comprises particle diameter at the raw glass aggregate of 5mm ~ 30mm and the particle diameter thin glass aggregate at 0.1mm ~ 3mm.

5. the glascrete in the steel frame-steel pipe glascrete L tee section coupled column as described in right 1, it is characterized in that: according to every cubic metre of glascrete volume, coarse aggregate glass weight 300kg ~ 1500kg, fines glass weight 300kg ~ 1500kg, cement 400 kg ~ 600 kg, the ratio of water 150 kg ~ 300 kg fully stirs.

6. steel frame-steel pipe glascrete L tee section coupled column according to claim 1, is characterized in that: described glascrete comprises simple substance glass, organic glass and unorganic glass.