CN102839774A - Crossed double angle reinforced flat slab structure - Google Patents
Crossed double angle reinforced flat slab structure Download PDFInfo
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- CN102839774A CN102839774A CN201210330351XA CN201210330351A CN102839774A CN 102839774 A CN102839774 A CN 102839774A CN 201210330351X A CN201210330351X A CN 201210330351XA CN 201210330351 A CN201210330351 A CN 201210330351A CN 102839774 A CN102839774 A CN 102839774A
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- crossbeam
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- cross double
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Abstract
The invention discloses a crossed double angle reinforced flat slab structure, comprising flat slab and concrete columns which are cast into a whole, wherein cross double angles are arranged at joint nodes of the flat slab and the concrete columns, wherein each crossed double angle comprises a first cross beam and a second cross beam which are connected perpendicularly, and both the first cross beam and the second cross beam are of an inverted T-shaped structure consisting of two steel angle leg backs which are welded closely or with a gap reserved; therefore, areas of the joint nodes of the flat slab and the concrete columns are reinforced by cross double angles, the punching resistance of the structure can be effectively improved without additional arrangement of column caps, the effect of improving bending resistance and earthquake resistance of connection between the slab and supporting columns is achieved, the joint nodes of the flat slab and the concrete columns can be processed conveniently, and the construction difficulty can be lowered.
Description
Technical field
The present invention relates to the field of civil engineering technology, refer in particular to a kind of cross double angle and strengthen the arch without beam structure.
Background technology
Arch without beam is mainly used in headroom between construction level is had higher requirements and factory building or working platformes such as the conditional building structure of floor height, industrial freezer, oil refinery; These are local because specific (special) requirements such as pipe arrangement or technologies; And the structure of beam can't be set; Be characterized in that the reinforced concrete floor plate directly links to each other with vertical supporting member (like reinforced concrete post or shear wall etc.), superstructure is no beam class A of geometric unitA down, relies on floor structure self to bear moment of flexure and shearing fully.Because the thickness of floor structure is limited; It is relatively poor to cause moment of flexure resistance and the anti-impact of its link position to cut ability, forms weak location, particularly anti-impact down and cuts that to destroy be brittle fracture thereby bear big load or seismic loading at flooring; Destroy suddenly; Before destruction, have only very small deformation, can't observe or send early warning signal in advance, have bigger danger.
In order to address the aforementioned drawbacks, the node location that the floor structure of being everlasting in the engineering is connected with support column is provided with cap, also is column bracket, and the local anti-impact that strengthens the floor structure junction is cut ability.But the column bracket structure tends to increase greatly the difficulty of construction, and can in the finishing in later stage, cause the column bracket position more hard to manage, influences attractive in appearance even influences the layout of technological process or pipeline.
Therefore; Propose power transmission rationally, safety economy, the concrete column of easy construction and the novel connected node of arch without beam; Becoming the advantage of giving full play to reinforcing bar (shaped steel) concrete structure, the key of promoting reinforcing bar (shaped steel) concrete structure, is the problem that engineering circle urgently will solve.
Summary of the invention
In view of this; The present invention is directed to the disappearance of prior art existence; Its main purpose provides a kind of cross double angle and strengthens the arch without beam structure, and it has the anti-bending bearing capacity height, coupling stiffness is big and anti-impact is cut the good advantage of ability, and the template when being convenient to node processing with construction supports.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of cross double angle is strengthened the arch without beam structure; Comprise arch without beam and concrete column that monobloc cast forms; Be provided with the cross double angle in this arch without beam and concrete column connected node position; This cross double angle comprises each other first crossbeam connected vertically and second crossbeam, and first crossbeam and second crossbeam all are near welding or keep the inverted T-shape structure that a determining deviation forms by two legs of angle back ofs the body.
Preferably, said first crossbeam is elongated double angle, and said second crossbeam is two sections welding double angles, and these two sections welding double angle vertical weldings are connected to the both sides of elongated double angle.
Preferably, the top of said first crossbeam and second crossbeam is positioned at same level height, and the bottom of first crossbeam and second crossbeam also is positioned at same level height.
Preferably, to the base of the angle steel of first crossbeam, be provided with the breach of stepping down in the weld seam bottom of two welding double angles of said second crossbeam, the base of this first crossbeam embeds in the breach of stepping down, and the two welding double angles and first crossbeam fit tightly welding.
Preferably, keep at regular intervals between two leg of angle back ofs the body of said first crossbeam or second crossbeam, be welded with some rectangular slabs equally spacedly between this two legs of angle back of the body.
Preferably, said concrete column is reinforcing bar or profile steel concrete column, and it is cylinder or square or rectangular column structure.
Preferably, vertically be provided with some reinforcing ribs in the said concrete column.
Preferably, said reinforcing rib is round steel or angle steel.
Preferably; Said arch without beam is the concrete arch without beam; At least hidden two-layer arrangement of reinforcement in this arch without beam; Every layer of arrangement of reinforcement is all horizontal, vertical to be laid in the same plane, and, the horizontal stroke of each arrangement of reinforcement, be longitudinally set with first crossbeam of putting direction and cross double angle, second crossbeam horizontal stroke, be longitudinally set with that to put direction identical.
Preferably, the arrangement of reinforcement of said arch without beam has two-layer up and down, its at the middle and upper levels arrangement of reinforcement be laid on the surface of cross double angle, this lower floor's arrangement of reinforcement is fixed in the bottom surface of cross double angle.
The present invention compared with prior art has tangible advantage and beneficial effect; Particularly, can know that its node area that mainly is concrete column and arch without beam intersect adopts the cross double angle to strengthen by technique scheme; Can effectively improve its anti-impact and cut ability; Need not to be provided with in addition cap, have vertical, the horizontal bending resistance in raising floor structure and support column junction and the effect of anti-seismic performance, also can make things convenient for the node processing and reduction difficulty of construction of concrete column and floor structure simultaneously.
For more clearly setting forth architectural feature of the present invention and effect, come the present invention is elaborated below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the overall structure sketch map of first embodiment of the invention;
Fig. 2 is partial cross section's three-dimensional view of first embodiment of the invention;
Fig. 3 is the structural representation of cross double angle in the first embodiment of the invention;
Fig. 4 is the structural representation of first crossbeam in the cross double angle of first embodiment of the invention;
Fig. 5 is the structural representation of first crossbeam in the cross double angle of second embodiment of the invention.
The accompanying drawing identifier declaration:
10, concrete column 11, reinforcing rib
20, arch without beam 30, cross double angle
31, first crossbeam 32, second crossbeam
33, angle steel 34, rectangular slab
35, weld seam 36, the breach of stepping down
40, arrangement of reinforcement.
The specific embodiment
Shown in please seeing figures.1.and.2, the concrete structure that it has demonstrated the present invention's first embodiment includes cross double angle 30, arrangement of reinforcement 40 in concrete column 10, arch without beam 20 and the arch without beam 20, this concrete column 10 and arch without beam 20 monobloc casts.
Wherein, as shown in Figure 3, said cross double angle 30 is positioned at the connected node position that concrete column 10 and arch without beam 20 intersect.This cross double angle 30 is concealed in arch without beam 20 planes; It comprises first crossbeam 31 and second crossbeam 32, and wherein, the length of first crossbeam 31 is about the twice of second crossbeam 32; Second crossbeam 32 has two sections; This two section second crossbeam 32 is vertically welded in the both sides of the center of first crossbeam 31 respectively, and through etc. the welding of strong design calculate and guarantee bonding strength, thereby make the crossbeam of superstructure form decussate texture.
In the present embodiment, in conjunction with Fig. 3 and shown in Figure 4, this first crossbeam 31 and second crossbeam 32 all are the inverted T-shape structures of being fitted and being welded together to form by two angle steel 33 limbs back ofs the body, and the back of two angle steel 33 fits tightly does not stay spacing.Certainly, it can also be integrated inverted T-shaped steel bar, not as limit.And said first crossbeam 31 is elongated double angle, and said second crossbeam 32 is two sections welding double angles, and these two sections welding double angle vertical weldings are connected to the both sides of elongated double angle.Also have, the top of said first crossbeam 31 and second crossbeam 32 is positioned at same level height, and the bottom 32 of first crossbeam 31 and second crossbeam also is positioned at same level height.For this reason, the bottom of said second crossbeam 32 is provided with the breach 36 of stepping down, and crossbeam 32 is vertical and fit tightly in the centre position of crossbeam 31, and welding forms weld seam 35.
As shown in Figure 2, said arch without beam 20 is the concrete arch without beam, and the arrangement of reinforcement 40 in this arch without beam 20 has at least two-layer; Its horizontal stroke, vertical being laid in the same plane; And, the horizontal stroke of each arrangement of reinforcement 40, be longitudinally set with first crossbeam 31 of putting direction and cross double angle 30, second crossbeam 32 horizontal stroke, be longitudinally set with that to put direction identical, its at the middle and upper levels arrangement of reinforcement 40 be laid on the upper surface of cross double angle 30; This lower floor's arrangement of reinforcement 40 is passed by the below, bottom surface of cross double angle 30; Thereby behind the arch without beam 20 integrated poured concrete, this cross double angle 30 is embedded in the arch without beam 20, can not expose the superstructure surface.
Said concrete column 10 is reinforcing bar or profile steel concrete column 10, is supporting arch without beam 20, and it can be cylinder or square or rectangular column structure.Vertically be provided with some reinforcing ribs 11 in this concrete column 10, this reinforcing rib 11 can be round steel or angle steel.
Work progress of the present invention is following:
At first, welding cross double angle 30 makes two section second crossbeam 32 be vertically welded in the both sides of the central point of first crossbeam 31 respectively, and calculates through the welding that waits strong design and to guarantee bonding strength, so that the Vierendeel girder of superstructure formation decussate texture.
Then this cross double angle 30 is lifted on the top of concrete column 10 formworks.
Then, lay netted arrangement of reinforcement 40 in the above and below of cross double angle 30, these arrangement of reinforcement 40 horizontal strokes, be longitudinally set with put direction and first crossbeam 31, the horizontal stroke of second crossbeam 32, longitudinal direction is identical.
At last, seal the template of concrete column 10 and arch without beam 20, can form whole arch without beam 20 by concreting, certainly, the concreting in the concrete column 10 should be poured into a mould prior to superstructure, otherwise should keep support, avoids cross double angle 30 stressed.
As shown in Figure 5, it has shown the concrete structure of the present invention's second embodiment, and the present embodiment and first embodiment are basic identical, and its difference is the structure of first crossbeam 31 in the cross double angle 30.In the present embodiment, keep at regular intervals between two angle steel 33 limbs back ofs the body of this first crossbeam 31, be welded with some rectangular slabs 34 equally spacedly between this two angle steel, 33 limbs back of the body, the width of each rectangular slab 34 preferably equates with the wide width of angle steel 33 vertical limbs.Certainly, it is identical with first crossbeam 31 that the structure of second crossbeam 32 also can be designed to, and no longer carefully states at this.
Through experiment showed, in a large number above-mentioned cross double angle 30 is placed between concrete column 10 and the arch without beam 20, the crushing resistance and the anti-impact that can strengthen building are greatly cut ability.
In sum; Design focal point of the present invention is; It mainly is to adopt cross double angle 30 to strengthen in the node area that concrete column 10 and arch without beam 20 intersect, and can effectively improve its anti-impact and cut ability, need not to be provided with in addition cap; Have the floor structure of raising and the bending resistance of support column junction and the effect of anti-seismic performance, also can make things convenient for the node processing and reduction difficulty of construction of concrete column 10 and floor structure simultaneously.
The above; It only is preferred embodiment of the present invention; Be not that technical scope of the present invention is done any restriction, so every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (10)
1. a cross double angle is strengthened the arch without beam structure; Comprise arch without beam and concrete column that monobloc cast forms; It is characterized in that: be provided with the cross double angle in this arch without beam and concrete column connected node position; This cross double angle comprises each other first crossbeam connected vertically and second crossbeam, and first crossbeam and second crossbeam all are near welding or keep the inverted T-shape structure that a determining deviation forms by two legs of angle back ofs the body.
2. cross double angle according to claim 1 is strengthened the arch without beam structure, and it is characterized in that: said first crossbeam is elongated double angle, and said second crossbeam is two sections welding double angles, and these two sections welding double angle vertical weldings are connected to the both sides of elongated double angle.
3. cross double angle according to claim 2 is strengthened the arch without beam structure, and it is characterized in that: the top of said first crossbeam and second crossbeam is positioned at same level height, and the bottom of first crossbeam and second crossbeam also is positioned at same level height.
4. cross double angle according to claim 3 is strengthened the arch without beam structure; It is characterized in that: the base that is directed against the angle steel of first crossbeam; The weld seam bottom of welding double angles in two of said second crossbeam is provided with the breach of stepping down; The base of this first crossbeam embeds in the breach of stepping down, and the two welding double angles and first crossbeam fit tightly welding.
5. cross double angle according to claim 1 is strengthened the arch without beam structure; It is characterized in that: keep at regular intervals between two leg of angle back ofs the body of said first crossbeam or second crossbeam, be welded with some rectangular slabs equally spacedly between this two legs of angle back of the body.
6. cross double angle according to claim 1 is strengthened the arch without beam structure, and it is characterized in that: said concrete column is reinforcing bar or profile steel concrete column, and it is cylinder or square column or rectangular configuration.
7. cross double angle according to claim 6 is strengthened the arch without beam structure, it is characterized in that: vertically be provided with some reinforcing ribs in the said concrete column.
8. cross double angle according to claim 7 is strengthened the arch without beam structure, and it is characterized in that: said reinforcing rib is round steel or angle steel.
9. cross double angle according to claim 1 is strengthened the arch without beam structure; It is characterized in that: said arch without beam is the concrete arch without beam; At least hidden two-layer arrangement of reinforcement in this arch without beam; Every layer of arrangement of reinforcement is all horizontal, vertical to be laid in the same plane, and, the horizontal stroke of each arrangement of reinforcement, be longitudinally set with first crossbeam of putting direction and cross double angle, second crossbeam horizontal stroke, be longitudinally set with that to put direction identical.
10. cross double angle according to claim 9 is strengthened the arch without beam structure, it is characterized in that: the arrangement of reinforcement of said arch without beam has two-layer up and down, its at the middle and upper levels arrangement of reinforcement be laid on the surface of cross double angle, this lower floor's arrangement of reinforcement is layed in the bottom surface of cross double angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330351XA CN102839774A (en) | 2012-09-07 | 2012-09-07 | Crossed double angle reinforced flat slab structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330351XA CN102839774A (en) | 2012-09-07 | 2012-09-07 | Crossed double angle reinforced flat slab structure |
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| CN102839774A true CN102839774A (en) | 2012-12-26 |
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| CN201210330351XA Pending CN102839774A (en) | 2012-09-07 | 2012-09-07 | Crossed double angle reinforced flat slab structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216519A (en) * | 2021-05-06 | 2021-08-06 | 浙江大学 | Steel reinforcement framework and application thereof in floor slab, flat slab and pile foundation bearing platform |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146252A (en) * | 1918-03-09 | 1921-07-21 | Adams Pond Company | Improvements in and relating to a concrete floor or slab construction |
| JPH03241138A (en) * | 1990-02-16 | 1991-10-28 | Mitsui Constr Co Ltd | Jointing structure of steel pipe column and slab in flat slab structure |
| CN2490247Y (en) * | 2001-08-06 | 2002-05-08 | 程文瀼 | Concrete floor column structure without cap |
| KR100948486B1 (en) * | 2009-12-08 | 2010-03-18 | 파슨스 브링커호프 아시아 리미티드 | Shear force reinforcing apparatus of steel tube column-reinforced concrete flat slab joint |
| CN201521049U (en) * | 2009-08-27 | 2010-07-07 | 中国建筑第八工程局有限公司 | Floor #-shaped steel shear connector |
| CN202073319U (en) * | 2011-05-04 | 2011-12-14 | 河南五建第二建筑安装有限公司 | Overhanging type discharging platform secondary beam |
| CN202866075U (en) * | 2012-09-07 | 2013-04-10 | 华侨大学 | Cross double angle reinforced flat slab structure |
-
2012
- 2012-09-07 CN CN201210330351XA patent/CN102839774A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB146252A (en) * | 1918-03-09 | 1921-07-21 | Adams Pond Company | Improvements in and relating to a concrete floor or slab construction |
| JPH03241138A (en) * | 1990-02-16 | 1991-10-28 | Mitsui Constr Co Ltd | Jointing structure of steel pipe column and slab in flat slab structure |
| CN2490247Y (en) * | 2001-08-06 | 2002-05-08 | 程文瀼 | Concrete floor column structure without cap |
| CN201521049U (en) * | 2009-08-27 | 2010-07-07 | 中国建筑第八工程局有限公司 | Floor #-shaped steel shear connector |
| KR100948486B1 (en) * | 2009-12-08 | 2010-03-18 | 파슨스 브링커호프 아시아 리미티드 | Shear force reinforcing apparatus of steel tube column-reinforced concrete flat slab joint |
| CN202073319U (en) * | 2011-05-04 | 2011-12-14 | 河南五建第二建筑安装有限公司 | Overhanging type discharging platform secondary beam |
| CN202866075U (en) * | 2012-09-07 | 2013-04-10 | 华侨大学 | Cross double angle reinforced flat slab structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216519A (en) * | 2021-05-06 | 2021-08-06 | 浙江大学 | Steel reinforcement framework and application thereof in floor slab, flat slab and pile foundation bearing platform |
| CN113216519B (en) * | 2021-05-06 | 2022-04-22 | 浙江大学 | Steel reinforcement framework and application thereof in floor slab, flat slab and pile foundation bearing platform |
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Application publication date: 20121226 |