CN103806672B - A kind of existing beam and lacing formula lattice steel column are collided the reinforcement of node - Google Patents
A kind of existing beam and lacing formula lattice steel column are collided the reinforcement of node Download PDFInfo
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- CN103806672B CN103806672B CN201410025606.0A CN201410025606A CN103806672B CN 103806672 B CN103806672 B CN 103806672B CN 201410025606 A CN201410025606 A CN 201410025606A CN 103806672 B CN103806672 B CN 103806672B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 195
- 239000010959 steel Substances 0.000 title claims abstract description 195
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 238000005728 strengthening Methods 0.000 claims abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 52
- 238000003466 welding Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
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Abstract
The invention discloses a kind of existing beam and lacing formula lattice steel column to collide the reinforcement of node, lacing formula lattice steel column is made up of 4 quadrate steel pipe columns and lacing, and existing beam is through the center of lacing formula lattice steel column.For the center making existing beam pass through lacing formula lattice steel column, do not arrange lacing colliding on Nodes lacing formula lattice steel column, the shear stiffness of Nodes of therefore colliding is weakened to a certain extent.The each quadrate steel pipe column strengthening steel plate and lacing formula lattice steel column is utilized to form box reinforced structure system to strengthen shear stiffness and the intensity of Nodes lacing formula lattice steel column of colliding.This technology effectively can improve lacing formula lattice steel column and collide the shearing resistance stress performance of Nodes with existing beam, and the design force transfer system of this node is clear and definite, reasonable stress, be convenient to site operation.
Description
Technical field
The present invention relates to structural steelwork extension project field, particularly relate to a kind of existing beam and lacing formula lattice steel column of being applicable to and to collide the reinforcement of node.
Background technology
Along with the development of national economy, structural steelwork is used widely in productive life.In existing structural steelwork, the factors such as the fault of construction that Long-Time Service produces, production technology changes, natural calamity causes structural damage make structure can not meet the requirement such as safety, applicability, and this just needs to reinforce respective steel Structural Engineering and reconstruct.
In steel structure reinforcing and extension project, existing beam passes through the important step that the new design of node founding structural column is structure design, and the stress performance of crossed node directly affects supporting capacity and the stability of structural system.Laced of battened compression member not only has the advantages such as reasonable stress, anti-side rigidity are large, economic, attractive in appearance, again can in the impregnable situation of existing post in former post position newly vertical laced of battened compression member carry out reinforcing and reorganization and expansion.The intensity of lacing formula lattice column is better than comparatively batten plate formula lattice column simultaneously, and its economic performance is also better than batten plate formula lattice column, and this just makes lacing formula lattice steel column be with a wide range of applications in structural steelwork.In existing structural steelwork, shorter mention is collided to existing beam and lacing formula lattice steel column the method for designing of node, and the structure design of node of therefore reasonably colliding has great significance to the reinforcing of steel work and extension project.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the reinforcement that a kind of existing beam and lacing formula lattice steel column collide node is provided.
The object of the invention is to be achieved through the following technical solutions: a kind of existing beam and lacing formula lattice steel column are collided the reinforcement of node, and the method comprises the following steps:
(1) lacing formula lattice steel column is formed by first party steel pipe column, second party steel pipe column, third steel tubing string, the 4th quadrate steel pipe column and lacing.Connected by square steel pipe beam and lacing to strengthen the cooperative bearing between lacing formula lattice steel column between quadrate steel pipe column.Existing beam passes from the center of lacing formula lattice steel column.
(2) corresponding position, inner and outer of two square steel pipe beams that the existing beam between first party steel pipe column and second party steel pipe column passes is docked welding first respectively and is strengthened steel plate and second and strengthen steel plate.First reinforcement steel plate and second is strengthened steel plate and is docked the annular reinforcement steel plate welding and formed and close by U-shaped reinforcement steel plate, all has square central hole.For ease of Site Welding construction, the second width strengthening the square central hole of steel plate strengthens steel plate square central hole width than first is wide, and stand out is greater than the thickness that the 3rd strengthens steel plate.Strengthen first the left side in square central hole that steel plate and second strengthens steel plate weld the 3rd of longitudinal direction with right-hand corner and strengthen steel plate, the 3rd reinforcement steel plate and first is strengthened steel plate and second and is strengthened steel plate welded corner joint and be connected; Strengthen steel plate and second first and strengthen the upside in square central hole of steel plate and the 4th of downside welded corner joint transverse direction strengthens steel plate.The thickness that first strengthens steel plate, the second reinforcement steel plate, the 3rd strengthens steel plate and the 4th reinforcement steel plate is identical.
(3) corresponding position, inner and outer of two square steel pipe beams that the existing beam between third steel tubing string and the 4th quadrate steel pipe column passes docks the strong steel plate of welding slender acanthopanax and the 6th reinforcement steel plate respectively.The strong steel plate of slender acanthopanax and the 6th is strengthened steel plate and is docked the annular reinforcement steel plate welding and formed and close by U-shaped reinforcement steel plate, all has square central hole.For ease of Site Welding construction, the width in the square central hole of the 6th reinforcement steel plate is wider than the square central hole width of the strong steel plate of slender acanthopanax, and stand out is greater than the thickness that the 7th strengthens steel plate.Weld the 7th of longitudinal direction in the left side in square central hole that steel plate strengthened by the strong steel plate of slender acanthopanax and the 6th with right-hand corner and strengthen steel plate, the 7th reinforcement steel plate is strengthened steel plate welded corner joint with the strong steel plate of slender acanthopanax and the 6th and is connected; The upside in square central hole of steel plate is strengthened and the 8th of downside welded corner joint transverse direction strengthens steel plate at the strong steel plate of slender acanthopanax and the 6th.The thickness that steel plate strengthened by the strong steel plate of slender acanthopanax, the 6th, steel plate strengthened by the 7th reinforcement steel plate and the 8th is identical.Reinforcement steel plate after welding defines box reinforced structure system, box reinforced structure system improves the shear stiffness of Nodes lacing formula lattice steel column of colliding to a certain extent, effectively prevent lacing formula lattice steel column to weaken in the local of Nodes bonding strength of colliding, thus improve the holistic resistant behavior of Nodes lacing formula lattice steel column of colliding.
The invention has the beneficial effects as follows, the lacing formula lattice steel column adopted in the present invention not only has that anti-side rigidity is large, economic dispatch performance, simultaneously in the reinforcing and extension project of existing structure can when not affecting existing post in former post position new vertical laced of battened compression member.The present invention for the collide connected node Path of Force Transfer that formed in reinforcement that node provides of existing beam and lacing formula lattice steel column clear and definite, effectively can strengthen the shear stiffness of node of colliding, prevent lacing formula lattice steel column collide Nodes due to shear stiffness weakened and produce destruction, and the design site operation of node of colliding is convenient, be a kind ofly can be widely used in existing beam and lacing formula lattice steel column in structural steelwork and to collide the reinforcement of node, have broad application prospects.
Accompanying drawing explanation
Fig. 1 is that the existing beam of the present invention and lacing formula lattice steel column are collided node reinforcement front view;
Fig. 2 is that the existing beam of the present invention and lacing formula lattice steel column are collided node reinforcement rear elevation;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is the B-B sectional drawing of Fig. 1;
Fig. 5 is the C-C sectional drawing of Fig. 1;
Fig. 6 is that closed annular strengthens steel plate;
In figure, first party steel pipe column 11, second party steel pipe column 12, third steel tubing string 13, the 4th quadrate steel pipe column 14, lacing 2, existing beam 3, square steel pipe beam 4, first reinforcement steel plate 51, second reinforcement steel plate 52, the 3rd are strengthened steel plate 53, the 4th and are strengthened steel plate 54, the strong steel plate 55 of slender acanthopanax, the 6th reinforcement steel plate 56, the 7th reinforcement steel plate 57, the 8th reinforcement steel plate 58.
Detailed description of the invention
Lacing formula lattice steel column center is passed through for making existing beam, lacing formula lattice steel column is collided with existing beam position can not arrange lacing, the shear stiffness of Nodes lacing formula of therefore colliding lattice steel column is weakened to a certain extent, and this carries out local reinforcement with regard to needs to node of colliding.A kind of existing beam of the present invention and lacing formula lattice steel column are collided the reinforcement of node, comprise the following steps:
1, as shown in Figure 3, lacing formula lattice steel column is formed by first party steel pipe column 11, second party steel pipe column 12, third steel tubing string 13, the 4th quadrate steel pipe column 14 and lacing 2.Connect to strengthen the cooperative bearing between lacing formula lattice steel column by square steel pipe beam 4 and lacing 2 between quadrate steel pipe column.
As shown in Figure 1, existing beam 3 passes from the center of lacing formula lattice steel column.
2, as shown in Figure 1, the corresponding position, inner and outer of two square steel pipe beams 4 that the existing beam 3 between first party steel pipe column 11 and second party steel pipe column 12 passes is docked welding first respectively and is strengthened steel plate 51 and second and strengthen steel plate 52.First reinforcement steel plate 51 and the second reinforcement steel plate 52 dock welding by U-shaped reinforcement steel plate and form the annular reinforcement steel plate closed, and all have square central hole, shape as shown in Figure 6.
As shown in Figure 4, for ease of Site Welding construction, the second width strengthening the square central hole of steel plate 52 strengthens steel plate 51 square central hole width than first is wide, and stand out is greater than the thickness that the 3rd strengthens steel plate 53.
As shown in Figure 1, strengthen left side that steel plate 51 and second strengthens the square central hole of steel plate 52 weld the 3rd of longitudinal direction with right-hand corner and strengthen steel plate 53 first, the 3rd reinforcement steel plate 53 and first is strengthened steel plate 51 and second and is strengthened steel plate 52 welded corner joint and be connected; Strengthen first the upside in square central hole that steel plate 51 and second strengthens steel plate 52 and strengthen steel plate 54 with the 4th of downside welded corner joint transverse direction, the shape of the 4th reinforcement steel plate 54 of the upper side and lower side as shown in Figure 3 and Figure 5.The thickness that first strengthens steel plate 51, second reinforcement steel plate 52, steel plate 54 strengthened by the 3rd reinforcement steel plate 53 and the 4th is identical.
3, as shown in Figure 2, the corresponding position, inner and outer of two square steel pipe beams 4 that the existing beam 3 between third steel tubing string 13 and the 4th quadrate steel pipe column 14 passes docks the strong steel plate 55 of welding slender acanthopanax and the 6th reinforcement steel plate 56 respectively.The strong steel plate of slender acanthopanax 55 and the 6th reinforcement steel plate 56 dock welding by U-shaped reinforcement steel plate and form the annular reinforcement steel plate closed, and all have square central hole, shape as shown in Figure 6.
As shown in Figure 4, for ease of Site Welding construction, the width in the square central hole of the 6th reinforcement steel plate 56 is wider than the square central hole width of the strong steel plate of slender acanthopanax 55, and stand out is greater than the thickness that the 7th strengthens steel plate 57.
As shown in Figure 2, weld the 7th of longitudinal direction in the left side in square central hole that steel plate 56 strengthened by the strong steel plate 55 of slender acanthopanax and the 6th with right-hand corner and strengthen steel plate 57, the 7th reinforcement steel plate 57 is strengthened steel plate 56 welded corner joint with the strong steel plate 55 of slender acanthopanax and the 6th and is connected; Strengthen steel plate 58 at the strong steel plate 55 of slender acanthopanax and the 6th upside in square central hole and the 8th of downside welded corner joint transverse direction strengthening steel plate 56, the shape of the 8th reinforcement steel plate 58 of the upper side and lower side as shown in Figure 3 and Figure 5.The thickness that steel plate 56 strengthened by the strong steel plate of slender acanthopanax the 55, the 6th, steel plate 58 strengthened by the 7th reinforcement steel plate 57 and the 8th is identical.
Reinforcement steel plate after welding defines box reinforced structure system, box reinforced structure system improves the shear stiffness of Nodes lacing formula lattice steel column of colliding to a certain extent, effectively prevent lacing formula lattice steel column to weaken in the local of Nodes bonding strength of colliding, thus improve the holistic resistant behavior of Nodes lacing formula lattice steel column of colliding.
Claims (2)
1. existing beam and lacing formula lattice steel column are collided a reinforcement for node, and it is characterized in that, the method comprises the following steps:
(1) lacing formula lattice steel column is formed by first party steel pipe column (11), second party steel pipe column (12), third steel tubing string (13), the 4th quadrate steel pipe column (14) and lacing (2); All be connected with the cooperative bearing strengthened between lacing formula lattice steel column by square steel pipe beam (4) and lacing (2) between first party steel pipe column (11) with second party steel pipe column (12), between second party steel pipe column (12) and third steel tubing string (13), between third steel tubing string (13) and the 4th quadrate steel pipe column (14) and between the 4th quadrate steel pipe column (14) and first party steel pipe column (11); Existing beam (3) passes from the center of lacing formula lattice steel column;
(2) corresponding position, inner and outer of two square steel pipe beams (4) that the existing beam (3) between first party steel pipe column (11) and second party steel pipe column (12) passes is docked welding first respectively and is strengthened steel plate (51) and second and strengthen steel plate (52); First reinforcement steel plate (51) and second is strengthened steel plate (52) and is formed the annular reinforcement steel plate closed by U-shaped reinforcement steel plate docking welding, and all has square central hole; Second width strengthening the square central hole of steel plate (52) strengthens steel plate (51) square central hole width than first is wide, and stand out is greater than the thickness that the 3rd strengthens steel plate (53); Strengthen first the left side in square central hole that steel plate (51) and second strengthens steel plate (52) to weld the 3rd of longitudinal direction with right-hand corner and strengthen steel plate (53), the 3rd reinforcement steel plate (53) and first is strengthened steel plate (51) and second and is strengthened steel plate (52) welded corner joint and be connected; First strengthen steel plate (51) and second reinforcement steel plate (52) the upside in square central hole and the 4th of downside welded corner joint transverse direction strengthen steel plate (54); The thickness that first strengthens steel plate (51), steel plate (53) and the 4th reinforcement steel plate (54) are strengthened in the second reinforcement steel plate (52), the 3rd is identical;
(3) corresponding position, inner and outer of two square steel pipe beams (4) that the existing beam (3) between third steel tubing string (13) and the 4th quadrate steel pipe column (14) passes docks the strong steel plate of welding slender acanthopanax (55) and the 6th reinforcement steel plate (56) respectively; The strong steel plate of slender acanthopanax (55) and the 6th is strengthened steel plate (56) and is docked the annular reinforcement steel plate welding and formed and close by U-shaped reinforcement steel plate, and all has square central hole; The width in the square central hole of the 6th reinforcement steel plate (56) is wider than the square central hole width of the strong steel plate of slender acanthopanax (55), and stand out is greater than the thickness that the 7th strengthens steel plate (57); Weld the 7th of longitudinal direction in the left side in square central hole that steel plate (56) strengthened by the strong steel plate of slender acanthopanax (55) and the 6th with right-hand corner and strengthen steel plate (57), the 7th reinforcement steel plate (57) is strengthened steel plate (56) welded corner joint with the strong steel plate of slender acanthopanax (55) and the 6th and is connected; The strong steel plate of slender acanthopanax (55) and the 6th strengthen steel plate (56) the upside in square central hole and the 8th of downside welded corner joint transverse direction strengthen steel plate (58); The thickness that steel plate (56) strengthened by the strong steel plate of slender acanthopanax (55), the 6th, steel plate (58) is strengthened in the 7th reinforcement steel plate (57) and the 8th is identical.
2. existing beam and lacing formula lattice steel column are collided the reinforcement of node according to claim 1, it is characterized in that, first strengthens steel plate (51), the second reinforcement steel plate (52), the strong steel plate of slender acanthopanax (55) and the 6th reinforcement steel plate (56) all can dock by two U-shaped reinforcement steel plates the annular reinforcement steel plate being welded airtight.
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| CN103806672B true CN103806672B (en) | 2016-01-20 |
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| CN104481162B (en) * | 2014-11-18 | 2016-07-06 | 上海岩土工程勘察设计研究院有限公司 | Ruggedized construction and construction method thereof suitable in Punching Shear column |
| CN108716289B (en) * | 2018-05-29 | 2020-04-17 | 中国十七冶集团有限公司 | Installation method of factory building extension steel column located at existing pipeline |
| CN113668691B (en) * | 2021-08-19 | 2022-10-21 | 成都建筑材料工业设计研究院有限公司 | Steel support structure for supporting multi-layer overhead gallery |
| CN114687479B (en) * | 2022-04-18 | 2024-03-26 | 北京工业大学 | Built-in batten type lattice column type double-steel-plate shear wall with wall-beam node domain |
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| JPH0518003A (en) * | 1991-07-09 | 1993-01-26 | Ooki Kensetsu Kk | Joining method of steel pipe concrete column and half-precast reinforced concrete column |
| JP3772320B2 (en) * | 1997-08-18 | 2006-05-10 | 株式会社竹中工務店 | Seismic reinforcement method for existing buildings |
| CN2390933Y (en) * | 1999-06-04 | 2000-08-09 | 同济大学 | Square steel pipe concrete beam and column jointing gusset |
| CN201635188U (en) * | 2010-03-17 | 2010-11-17 | 西南科技大学 | Cold-formed thin-walled steel beam column node |
| CN102383611B (en) * | 2012-01-11 | 2013-11-13 | 浙江大学 | Construction method for steel structure beam penetrating column |
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Address after: 310012 Hangzhou Neusoft building, Huaxing Road, 99, Zhejiang, Hangzhou Patentee after: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee after: ZHEJIANG University Address before: 310012 Hangzhou Neusoft building, Huaxing Road, 99, Zhejiang, Hangzhou Patentee before: ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. Patentee before: Zhejiang University |
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