CN101397822A - Assembly of integral flat-plate type or hood face section steel hollow lattice construction and production method - Google Patents

Assembly of integral flat-plate type or hood face section steel hollow lattice construction and production method Download PDF

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Publication number
CN101397822A
CN101397822A CNA2007102019341A CN200710201934A CN101397822A CN 101397822 A CN101397822 A CN 101397822A CN A2007102019341 A CNA2007102019341 A CN A2007102019341A CN 200710201934 A CN200710201934 A CN 200710201934A CN 101397822 A CN101397822 A CN 101397822A
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CN
China
Prior art keywords
steel
chord
double
assembly
unit
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Application number
CNA2007102019341A
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Chinese (zh)
Inventor
马克俭
杨大春
覃士杰
卢压琴
魏艳辉
覃亮
黄首赟
段渝忠
舒丹
田子东
Original Assignee
贵州喀斯特钢结构有限公司
贵州大学空间结构研究中心
贵阳市建筑设计院有限公司
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Application filed by 贵州喀斯特钢结构有限公司, 贵州大学空间结构研究中心, 贵阳市建筑设计院有限公司 filed Critical 贵州喀斯特钢结构有限公司
Priority to CNA2007102019341A priority Critical patent/CN101397822A/en
Publication of CN101397822A publication Critical patent/CN101397822A/en

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Abstract

The invention relates to a wholly assembled flat or curved steel vierendeel grid structure and a producing method thereof. The producing method comprises the steps: firstly, the two ends of a cylinder steel pipe are welded with a supporting plate respectively; the surface of the supporting plate and the pipe wall of the cylinder steel pipe are taken as welding points, 8 chords with T-shaped sections are respectively welded at the two ends of the cylinder steel pipe to form a double-layer assembling crisscross unit; chords of two or more double-layer assembling crisscross units are connected by a double spicing plate on the construction site so as to assemble the flat or curved grid structure. The flat or curved grid structure produced by the method has dexterous and firm structure; the welding technique is finished in factories, thus being capable of improving the precision and quality of production; the grid is formed by a vierendeel beam rather than a vierendeel truss rod so that water pipelines and electrical wires can go through the grids conveniently, takes regular grid shapes and plays a role of hanging floors and roofs.

Description

Assembly of integral flat-plate type or hood face section steel hollow lattice construction and preparation method
Technical field:
The present invention relates to a kind of steel lattice structure for building and preparation method thereof, particularly a kind of assembly of integral flat-plate type or hood face section steel hollow lattice construction and preparation method.
Technical background:
At present, the existing domestic and international huge pillar net (superstructure of high-rise building steel structure of 9m~12m), except steel-frame beam, still need and in the post net, add middle girder steel, cross or groined type girder steel, middle girder steel, cross or groined type girder steel generally adopt H shaped steel, as the post net is the office occupancy in the flexible division room of 12m * 12m, steel frame i shaped cross section deck-molding 800 (L/15) intermediate wells glyph grid beam (grid 4000 * 4000) depth of section 6700 (L/20), cast-in-place (the armored concrete slab of 100mm~120mm) in 4m grid beams top flange, superstructure gross thickness 750 (Vierendeel girder exposes 50) behind the furred ceiling in the post net, such practice increases superstructure thickness, steel using amount is also big, causes adding the edifice floor height.For example general huge pillar net is separated the office premises of multifunctional application flexibly, floor height 3.3m~3.4m, and then clear height is 2.55m~2.65m behind the furred ceiling, and clear height is short partially, and must strengthen floor height is 3.55m~3.6m.The comprehensive cost of building and the influence of construction level High variation are very big, and the height that reduces superstructure is the main means that reduce floor height.If adopt H shaped steel orthogonal spatial ribbed grid-like structure, as adopting 1.5m * 1.5m grid (8 * 8 lattice) in 12m * 12m post net, the armored concrete slab that upper berth 50~60 is thick, H shaped steel grid beams height h=350 this moment (L/34.3) adds the concrete thickness of slab, then the floor structure gross thickness is δ=350+50=400mm, than the former 350mm that descends, guaranteeing office premises headway h 0Under=2.8m~2.85m condition, floor height only needs 3.2m~3.25m, and (the decline 0.1m~0.15m of 3.3m~3.4m), than the former every layer of decline 0.35m, promptly per 10 layers can increase one deck more than conventional floor height.But H shaped steel waffle slab comprehensive cost increases though save the floor height steel using amount than the comprehensive cost height (10%~15%) of middle rood beam of huge pillar net steel frame or middle nine-squares beam structure, and it is as follows to sum up its weak point: one, steel using amount are bigger than normal relatively; Two, building cover structure inside leak water, conduit inconvenience; Three, grid is more, and the solder joint of welding connection node is many, as 12m * 12m waffle slab, during grid 1.5m * 1.5m, this waffle slab has 81 crossover nodes, i.e. 1944 weld seams, not only welding job amount at the scene is big, and since the influence of welding deformation, the also difficult control of quality.
Summary of the invention:
The objective of the invention is to: provide a kind of structure light and handy, install easily, the field Welding amount is few, make higher assembly of integral flat-plate type or hood face section steel hollow lattice construction and the preparation method of precision, to overcome the deficiencies in the prior art.
Technical scheme of the present invention: assembly of integral flat-plate type or curved surface the shaped steel preparation method of grid on an empty stomach are respectively to weld a supporting plate 4 at the two ends of cylindrical steel 3 earlier, and be pad with the surface of supporting plate 4 and the tube wall of cylindrical steel 3,8 cross sectional shapes chord member 2 that is the T font is welded on the supporting plate 4 at cylindrical steel 3 two ends respectively and on the tube wall of cylindrical steel 3, constitute double-layer cross shape assembly unit unit 1, adopt Two bors d's oeuveres fishplate bar 6 and high-strength bolt 7 that the chord member 2 of two or more double-layer cross shape assembly units unit 1 is interconnected again at the construction field (site), promptly can be assembled into assembly of integral flat-plate type or hood face section steel hollow lattice construction.
Assembly of integral flat-plate type or hood face section steel hollow lattice construction are to be interconnected to constitute by two or more double-layer cross shape assembly units unit 1; Double-layer cross shape assembly unit unit 1 is made up of chord member 2, cylindrical steel 3 and supporting plate, respectively be welded with a supporting plate 4 at the two ends of cylindrical steel 3, the chord member 2 that all to be connected with 4 cross sectional shapes on every block of supporting plate 4 be the T font is connected 4 chord members 2 on every block of supporting plate 4 and is cross and arranges; And the connection of per two double-layer cross shape assembly unit unit 1 is that the chord member 2 by Two bors d's oeuveres fishplate bar 6 and two double-layer cross shape assembly unit unit 1 links into an integrated entity with high-strength bolt 7 behind the overlap joint mutually again.
Cross sectional shape is that the top flange of the chord member 2 of T font is a triangle, and the top flange of per four chord members 2 is butt-welded on the supporting plate 4 of cylindrical steel 3 one ends, the web of chord member 2 is welded on the sidewall of cylindrical steel 3, and 4 chord members 2 that are connected on the cylindrical steel 3 are crossing distribution.
Described cylindrical steel 3 is round steel pipe or rectangular steel tube.
Described cross sectional shape is that the chord member 2 of T font is with making after section bar or the steel plate welding.
The length a of each double-layer cross shape assembly unit unit 1 is 1.5~2m.
Compared with the prior art, the present invention is a kind of steel spatial mesh structure of inner no diagonal web member, when utilizing network of the present invention to make superstructure, on chord member, weld pin, make concrete and the acting in conjunction of steel upper chord, can improve the rigidity of network, if make net surfaces shell roof system, after steel Eurya plant bar is set, can lay light roofing materialss such as color-steel composite board, also can make point supported glass daylighting curved surface roof system or cast-in-situ steel reinforced concrete thin plate thereon, form the surface net shell structure.Structure composition of the present invention and aufbauprinciple and the steel concrete open-spandrel sandwich board and the shell that are successfully applied to engineering practice have the effect of " different Qu Tonggong ", difference and relative superiority are mainly reflected in following several respects: one, structure of the present invention are made up of the steel member, the elastic modulus E of steel sBe 6~7 times of modulus of elasticity of concrete, structure height is little, can do lightlyer; Two, basic concatenation unit of the present invention is the double-layer cross shape unit that makes in factory process, its assembling mode connects with high-strength bolt after the chord member employing Two bors d's oeuveres fishplate bar of double-layer cross shape unit overlaps in twos, the junction of cause two double-layer cross shape unit is the inflection point (moment of flexure equals zero point) of double-layer cross shape unit, it is good to connect the back structural integrity, safe and reasonable; Be assembly unit of the present invention unit three, because of double-layer cross shape unit, it is to adopt high-strength bolt to connect at produce in factory, after transporting to the building site at the inflection point place, welding deformation and welding stress had both been eliminated, avoided a large amount of weld seams to weld the influence of many unfavorable factors of being brought at the scene again, architecture quality also can guarantee, and improve work efficiency.
Structural system of the present invention, the huge pillar net is many except that can be applicable to, the high building steel work superstructure, still its aufbauprinciple can be applied to surface net shell structure positive and negative, zero Gaussian curvature.Because of double-layer cross shape of the present invention unit at produce in factory, transport to behind the building site again after inflection point place (chord member tie point in twos) adopts high-strength bolt to connect, the novel hollow sandwich network of space monolithic that forms, this structure also has following different aspect with general steel screen structure: the first, grid is intersected by laced beam and forms, no diagonal web member can be conveniently from middle on an empty stomach water, the conduit worn of grid; The second, the assembly unit node is not on cylindrical steel but at the position (being the inflection point place of upper and lower chord member) that chord member in twos adopts the Two bors d's oeuveres fishplate bar to be connected with the friction-type high-strength bolt, connect more reliable.Three, simple structure of the present invention is made processing and assembling need not specific process equipment; Four, structure height can descend 1/3, because of no diagonal web member, and the clean and tidy no messy sense of grid moulding, indoor grid moulding is neatly generous.Therefore the present invention has excellent popularization and using value.
Description of drawings:
Fig. 1 the present invention is plate hollow sandwich steel lattice schematic diagram;
Fig. 2 the present invention is a curved face type hollow sandwich steel lattice schematic diagram;
Fig. 3 is the diagrammatic sectional view of Fig. 1; Wherein to represent inflection point be splice point to the circle at a/2 place;
Fig. 4 is the diagrammatic sectional view of Fig. 2; Wherein to represent inflection point be splice point to the circle at a/2 place;
Fig. 5 is the structural representation that upper and lower chord member adopts Two bors d's oeuveres fishplate bar 6 and high-strength bolt 7 splicings;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is that the B-B of Fig. 9 is to view;
Fig. 8 is the schematic perspective view of double-layer cross shape concatenation unit 1;
Fig. 9 is double-layer cross shape concatenation unit 1 sectional side view;
Figure 10 is the vertical view of Fig. 9.
The specific embodiment:
Embodiments of the invention: double-layer cross shape of the present invention unit 1 as shown in Figure 8, double-layer cross shape unit 1 is the rigidity weldment, it is to be that a supporting plate 4 is respectively welded at the two ends of square or circular column steel pipe 1 at cross sectional shape, on every block of supporting plate 4, weld 4 chord members 2 that cross sectional shape is the T font again, the top flange of 4 chord members 2 is processed into triangle, after piecing together, be welded on the supporting plate 4, being welded on 4 chord members on the supporting plate 4 is cross and arranges (as shown in figure 10), and the weld seam of joint is milled flat, again at cover plate 5 of the upper end of 4 chord member docking sites welding; The web of chord member 2 is welded in (as shown in Figure 9) on the cylindrical steel 3; And from Fig. 9, can obviously find out (on an empty stomach) at regular intervals between the chord member 2 that is connected cylindrical steel 3 two ends, can make things convenient for so therefrom to penetrate water, conduit.Double-layer cross concatenation unit 1 is all made in the workshop, can guarantee crudy like this, and double-layer cross shape unit 1 length a is preferably 1.5~2m.After double-layer cross assembly unit unit 1 transports the building site to, its connected mode such as Fig. 5, Fig. 6 and shown in Figure 7, the last lower chord 2 alignment backs of two double-layer cross shape assembly unit unit 1 are overlapped with Two bors d's oeuveres fishplate bar 6, and boring on the good Two bors d's oeuveres fishplate bar 6 of overlap joint and chord member 2, penetrate high-strength bolt 7 and be connected, above-mentioned being connected after the job site finishes connection promptly forms waffle slab of the present invention and grid shell.Waffle slab if do superstructure or roof system thereon string establish " pin " or " the S reinforcing bar " 8 that shearing resistance is used, pour into a mould one deck 50~70 thick steel bar concrete thin plates 9 again, promptly form " steel-concrete cooperating type combined hollow sandwich slab ".The steel bar concrete thin plate is as the part of dead load during Intensity Design, do not consider its intensity contribution, but during rigidity Design, the conversion of concrete cross section can be calculated rigidity behind the steel cross section, and promptly concrete is participated in the rigidity of structure and calculated, and increases substantially the rigidity of the big plate of grid.Steel-concrete cooperating type combined hollow sandwich slab is made superstructure, and it makes superstructure than general steel-concrete composite space truss, and following advantage is arranged:
1. the comparable existing space truss structure height drop by half of structure height of the present invention;
2. the present invention does not have diagonal web member, forms groined type grid on an empty stomach, and uniform have furred ceiling appearance U.S..
3. assembly unit of the present invention unit welds the assembly unit manufacturing in factory, on-the-spot bolt assembly unit, and quality is more reliable.

Claims (6)

  1. The preparation method of [claim 1] a kind of assembly of integral flat-plate type or hood face section steel hollow lattice construction, it is characterized in that: this method is respectively to weld a supporting plate (4) at the two ends of cylindrical steel (3) earlier, and be pad with the surface of supporting plate (4) and the tube wall of cylindrical steel (3), the supporting plate (4) that 8 cross sectional shapes chord member (2) that is the T font is welded on cylindrical steel (3) two ends respectively go up and the tube wall of cylindrical steel (3) on, constitute double-layer cross shape assembly unit unit (1), adopt Two bors d's oeuveres fishplate bar (6) and high-strength bolt (7) that the chord member (2) of two or more double-layer cross shape assembly unit unit (1) is interconnected again at the construction field (site), promptly can be assembled into assembly of integral flat-plate type or hood face section steel hollow lattice construction.
  2. [claim 2] a kind of assembly of integral flat-plate type or hood face section steel hollow lattice construction is characterized in that: it is interconnected to constitute by two or more double-layer cross shape assembly unit unit (1); Double-layer cross shape assembly unit unit (1) is made up of chord member (2), cylindrical steel (3) and supporting plate (4), respectively be welded with a supporting plate (4) at the two ends of cylindrical steel (3), the chord member (2) that all to be connected with 4 cross sectional shapes on every block of supporting plate (4) be the T font is connected 4 chord members (2) on every block of supporting plate (4) and is cross and arranges; And the connection of per two double-layer cross shape assembly unit unit (1) is to use high-strength bolt (7) to link into an integrated entity again behind the overlap joint mutually by the Two bors d's oeuveres fishplate bar (6) and the chord member (2) of two double-layer cross shape assembly unit unit (1).
  3. [claim 3] assembly of integral flat-plate type according to claim 2 or hood face section steel hollow lattice construction, it is characterized in that: cross sectional shape is that the top flange of the chord member (2) of T font is a triangle, and the top flange of per four chord members (2) is butt-welded on the supporting plate (4) of cylindrical steel (3) one ends, the web of chord member (2) is welded on the sidewall of cylindrical steel (3), and 4 chord members (2) that are connected on the cylindrical steel (3) are crossing distribution.
  4. [claim 4] assembly of integral flat-plate type according to claim 2 or hood face section steel hollow lattice construction is characterized in that: described cylindrical steel (3) is round steel pipe or rectangular steel tube.
  5. [claim 5] assembly of integral flat-plate type according to claim 2 or hood face section steel hollow lattice construction is characterized in that: described cross sectional shape is that the chord member (2) of T font is with making after section bar or the steel plate welding.
  6. [claim 6] assembly of integral flat-plate type according to claim 2 or hood face section steel hollow lattice construction is characterized in that: the length (a) of each double-layer cross shape assembly unit unit (1) is 1.5~2m.
CNA2007102019341A 2007-09-30 2007-09-30 Assembly of integral flat-plate type or hood face section steel hollow lattice construction and production method CN101397822A (en)

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Application Number Priority Date Filing Date Title
CNA2007102019341A CN101397822A (en) 2007-09-30 2007-09-30 Assembly of integral flat-plate type or hood face section steel hollow lattice construction and production method

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635243A (en) * 2012-05-11 2012-08-15 唐山建华工程质量检测有限公司 Method for constructing high-rise residential building with assembled integrated spatial steel grid box type structure
CN103291004A (en) * 2013-06-27 2013-09-11 贵州大学 Assembly type rectangular plane roof and manufacturing method thereof
CN103669573A (en) * 2013-11-25 2014-03-26 中国建筑第二工程局有限公司 Curling steel structure and construction method thereof
CN104763054A (en) * 2015-04-17 2015-07-08 南京中建化工设备制造有限公司 Assembly integral type orthogonal spatial mixed steel grid box type structure
CN104775521A (en) * 2015-04-17 2015-07-15 南京中建化工设备制造有限公司 Assembled integral type orthogonal-diagonal mixed type steel grid box type structure
CN104775557A (en) * 2015-04-17 2015-07-15 南京中建化工设备制造有限公司 Large-span assembly integral type open-web sandwich plate building floor
CN104831851A (en) * 2015-04-29 2015-08-12 潍坊昌大建设集团有限公司 Reinforced concrete orthogonal-diagonal space lattice box structure and production method thereof
CN105275121A (en) * 2014-05-28 2016-01-27 南京中建化工设备制造有限公司 Three-layer T-shaped steel vierendeel beam and manufacturing method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635243A (en) * 2012-05-11 2012-08-15 唐山建华工程质量检测有限公司 Method for constructing high-rise residential building with assembled integrated spatial steel grid box type structure
CN103291004A (en) * 2013-06-27 2013-09-11 贵州大学 Assembly type rectangular plane roof and manufacturing method thereof
CN103291004B (en) * 2013-06-27 2016-08-10 贵州大学 A kind of assembled rectangular plane roof and preparation method thereof
CN103669573A (en) * 2013-11-25 2014-03-26 中国建筑第二工程局有限公司 Curling steel structure and construction method thereof
CN103669573B (en) * 2013-11-25 2015-11-18 中国建筑第二工程局有限公司 Curling stone steel structure and construction method thereof
CN105275121B (en) * 2014-05-28 2018-06-19 中建五洲工程装备有限公司 Three layers of T-steel laced beam and preparation method thereof
CN105275121A (en) * 2014-05-28 2016-01-27 南京中建化工设备制造有限公司 Three-layer T-shaped steel vierendeel beam and manufacturing method thereof
CN104775521A (en) * 2015-04-17 2015-07-15 南京中建化工设备制造有限公司 Assembled integral type orthogonal-diagonal mixed type steel grid box type structure
CN104763054A (en) * 2015-04-17 2015-07-08 南京中建化工设备制造有限公司 Assembly integral type orthogonal spatial mixed steel grid box type structure
CN104775557B (en) * 2015-04-17 2017-01-04 南京中建化工设备制造有限公司 A kind of large span assembled integral hollow sandwich panel ceiling for storied building
CN104775557A (en) * 2015-04-17 2015-07-15 南京中建化工设备制造有限公司 Large-span assembly integral type open-web sandwich plate building floor
CN104831851A (en) * 2015-04-29 2015-08-12 潍坊昌大建设集团有限公司 Reinforced concrete orthogonal-diagonal space lattice box structure and production method thereof

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