CN103883130A - Installation method for small-diameter steel tubes in space grid structure - Google Patents
Installation method for small-diameter steel tubes in space grid structure Download PDFInfo
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- CN103883130A CN103883130A CN201410113605.1A CN201410113605A CN103883130A CN 103883130 A CN103883130 A CN 103883130A CN 201410113605 A CN201410113605 A CN 201410113605A CN 103883130 A CN103883130 A CN 103883130A
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Abstract
The invention discloses an installation method for small-diameter steel tubes in a space grid structure. Each steel tube is segmented into two sections, wherein the length of one section is one third that of the original steel tube, and the length of the other section is two thirds that of the original steel tube. In the installation process, the long section of the steel tube is firstly welded, and then the short section of the steel tube is welded after the short section of the steel tube and the long section of the steel tube are bound. The installation method has the advantages that when web members are installed, each web member is cut off and divided into two sections which are 1/3 long and 2/3 long respectively, so that the welding positions are stressed little, breakage is not prone to happening, after the long sections, with the length two third that of the original steel tubes, of the steel tubes are firstly welded, the short sections of the steel tubes are convenient to install directly, and weld points are arrayed in a crossing mode, so that the stress effect is guaranteed; through straightening parts, the long sections of the steel tubes and the short sections of the steel tubes can be installed on the same line and can be convenient to weld after binding.
Description
Technical field
The present invention relates to Steel Structure Installation field, specifically a kind of spatial mesh structure medium-small diameter penstock installation method.
Background technology
Under the continuous exploration in building and structure design people of light-duty, firm, the large space of spatial mesh structure and the feature of transparency and innovation, be more and more applied.In spatial mesh structure, use in a large number the minor diameter seamless steel tube of diameter 60 ~ 140mm, to make web member to use, web member is arranged in truss, as Fig. 1, in truss, generally comprise chord member and web member (9), chord member is generally mobile jib, in one group of chord member, be divided into upper chord (7) and lower chord (8), upper chord (7) and lower chord (8) be arranged in parallel, between each group chord member, row's web member (9) being set supports, the two ends that are web member (9) connect respectively upper chord (7) and lower chord (8), chord member carries out the support of vertical direction like this, web member (9) carries out the support of horizontal direction, web member (9) in structure because great majority are locus, and because diameter is less, usually install in high empty position again everywhere, add length when longer, personnel need to move up and down, abnormally dangerous, so generally web member (9) can be truncated into two sections, install respectively, shorter being just easy to installed, but existing mounting method is all that web member is truncated into isometric two sections, although install so fairly simple, do not need to consider erection sequence, but this to install soundness inadequate, because when a straight tube is stressed at two ends, when straight tube is carried out to bending, the suffered Stress non-homogeneity of straight tube, it is positioned at the stressed in fact maximum of center, be easier to like this fracture at the pad place at center, thereby cause the consequence that is difficult to expectation.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of spatial mesh structure medium-small diameter penstock installation method is provided, solve existing web member because be divided into two sections of welding, cause the bad defect of support effect.
Object of the present invention is achieved through the following technical solutions: spatial mesh structure medium-small diameter penstock installation method, comprises the following steps:
A, web member is divided into two sections, one section is raw footage 1/3rd, is called short section of steel pipe, and another section is 2/3rds of raw footage, is called a long section steel pipe;
B, make a straightening support, this straightening support comprises alignment part and multiple support, described alignment part is vertical bar shape, and on alignment part, there is one side to be provided with the groove running through along its bearing of trend, described support comprises rack body and hold down gag, described rack body takes the shape of the letter U, be on rack body, to be provided with a U-shaped groove, the bottom land of this U-shaped groove is provided with the groove coordinating with alignment part, the degree of depth of the groove of described rack body is less than the thickness of alignment part, and the bearing of trend of groove is consistent with the bearing of trend of U-shaped groove, described hold down gag is removably mounted on the U-shaped opening part of rack body, it is just provided with compressing member to the position at groove center, compressing member is perpendicular to groove, and can move along its bearing of trend,
C, first length section steel pipe is welded and fixed on chord member, then by the short section of steel pipe of one side laminating of alignment part band groove, the width of the groove of alignment part is less than the diameter of steel pipe, the position of short section of steel pipe and the laminating of alignment part should be absorbed in groove, a part for alignment part and short section of steel pipe laminating, another part exceeds short section of steel pipe, then use support that alignment part and short section of steel pipe colligation are fixed together, the part that exceeds short section of steel pipe of last alignment part, adopting uses the same method is fixed together with the colligation of long section steel pipe, and cutting off place's seamless link between short section of steel pipe and long section steel pipe,
D, short section of steel pipe is welded and fixed on chord member, then carries out the welding of junction between short section of steel pipe and long section steel pipe, after welding is good, disassemble straightening support.
Web member is divided into two sections by the present invention, one section is long section, i.e. 2/3rds raw footage, one section is short section, i.e. 1/3rd raw footage, shorten like this installation length, when installation, improve degree of safety, and in the present invention, web member blocks at 1/3rd places, in the time that web member is stressed in steel work, the moment of flexure minimum at 1/3rd places, this weld is stressed little, be difficult to fracture, and after the long section steel pipe of first welding 2/3rds, short section of steel pipe is easy to directly installing, because first install only need to chord member on be welded and fixed, that then installs needs alignment, constantly mobile, the short section of steel pipe of installing is like this because lightweight, facilitated staff.In the present invention, in the time that long section steel pipe docks with short section of steel pipe, provide a good alignment part, ensured the straightness accuracy between long section of steel pipe and short section of steel pipe.
Further, in above-mentioned row's web member, the chord member that short section of steel pipe of adjacent web member connects is different, row's web member is divided into the first web member, the second web member, the 3rd web member by putting in order ... N web member, in the time that short section of steel pipe connecting of the first web member connects chord member, short section of steel pipe of the second web member connect lower chord, and short section of steel pipe of the 3rd web member connects upper chord, short section of steel pipe of the 4th web member connects lower chord, by that analogy.In prior art, pad is centralized arrangement, is straight line; when stressed, be easy to along this straight line fracture, and pad cross weld in the present invention; the pad of two adjacent web members can be not adjacent; protected web member, this principle when building a wall, fragment of brick intersect place the same; make web member can bear larger power; after tested, case 1/3rd, 2/3rds is divided, the power maximum that this group web member can bear.
Further, above-mentioned hold down gag also comprises mounting rod, the two ends of described mounting rod are detachably arranged on respectively on two U-shaped sides of rack body, the compressing member mounting rod that is threaded, and compressing member runs through mounting rod, turn compressing member, compressing member can move towards groove, or away from groove.
Further, above-mentioned compressing member is provided with handle away from one end of groove, has facilitated the turn of compressing member.
Further, the two ends of above-mentioned mounting rod are threaded with two U-shaped sides of rack body respectively, and mounting rod is is easily mounted and dismounted, and mounting rod is also to provide supporting role in the time of work, have ensured the stable of mounting rod so mounting rod is threaded.
Further, above-mentioned alignment part is a channel-section steel, and steel tank is the device being often applied in steel work, and comparatively robust, and shape takes the shape of the letter U exactly, can directly draw materials, and has removed from and has needed extra trouble of producing.
The invention has the beneficial effects as follows:
1, the present invention is in the time that web member is installed, first web member is cut off, be divided into two sections, web member of the present invention is divided into 1/3rd and 2/3rds, makes weld stressed little, is difficult to fracture, and after the long section steel pipe of first welding 2/3rds, short section of steel pipe is easily to directly installing, and pad cross arrangement of the present invention, has ensured stressed effect;
2 and the present invention by alignment part, while making long section steel pipe and short section of penstock installation, can, along straight line, after colligation, can conveniently weld, and this apparatus structure be fairly simple, installing/dismounting is also very easy to;
3, in this device, alignment part directly adopts channel-section steel, has not only facilitated and has drawn materials, and has also reduced cost.
Brief description of the drawings
Fig. 1 is the structural representation of steel member;
Fig. 2 is the mounting structure schematic diagram of alignment part;
The structural representation of this alignment of Fig. 3 part;
In figure, 1-alignment part, 2-support, 3-rack body, 4-hold down gag, short section of steel pipe of 5-, the long section of 6-steel pipe, 7-upper chord, 8-lower chord, 9-web member, 301-U type groove, 302-U shape opening, 303-U shape side, 304-groove, 401-compressing member, 402-mounting rod, 403-handle.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail:
Embodiment:
As shown in Figure 1, Figure 2, Fig. 3, spatial mesh structure medium-small diameter penstock installation method, comprises the following steps:
A, web member is divided into two sections, one section is raw footage 1/3rd, is called short section of steel pipe 5, and another section is 2/3rds of raw footage, is called a long section steel pipe 6;
B, make a straightening support, this straightening support comprises alignment part 1 and multiple support 2, described alignment part 1 is vertical bar shape, and on alignment part 1, there is one side to be provided with the groove running through along its bearing of trend, described support 2 comprises rack body 3 and hold down gag 4, described rack body 3 takes the shape of the letter U, be on rack body 3, to be provided with a U-shaped groove 301, the bottom land of this U-shaped groove 301 is provided with the groove 304 coordinating with alignment part 1, the degree of depth of the groove 304 of described rack body 3 is less than the thickness of alignment part 1, and the bearing of trend of groove 304 is consistent with the bearing of trend of U-shaped groove 301, described hold down gag 4 is removably mounted on U-shaped opening 302 places of rack body 3, it is just provided with compressing member 401 to the position at groove 304 centers, compressing member 401 is perpendicular to groove 304, and can move along its bearing of trend,
C, first length section steel pipe 6 is welded and fixed on chord member, then the short section of steel pipe 5 of the laminating of the one side with groove by alignment part 1, the width of the groove of alignment part 1 is less than the diameter of steel pipe, short section of steel pipe 5 should be absorbed in groove with the position that alignment part 1 is fitted, a part for alignment part 1 and short section of steel pipe 5 are fitted, another part exceeds short section of steel pipe 5, then use support 2 that alignment part 1 and short section of steel pipe 5 colligations are fixed together, the part that exceeds short section of steel pipe 5 of last alignment part 1, adopting uses the same method is fixed together with 6 colligations of long section steel pipe, and cutting off place's seamless link between short section of steel pipe 5 and long section steel pipe 6,
D, short section of steel pipe 5 is welded and fixed on chord member, then carries out the welding of junction between short section of steel pipe 5 and long section steel pipe 6, after welding is good, disassemble straightening support.
In one row's web member 9 of the present embodiment, the chord member that short section of steel pipe 5 of adjacent web member 9 connects is different, row's web member 9 is divided into the first web member, the second web member, the 3rd web member by putting in order ... N web member, in the time that short section of steel pipe 5 of the first web member connects upper chord 7, short section of steel pipe 5 of the second web member connect lower chord 8, the short section of steel pipe 5 that short section of steel pipe 5 of the 3rd web member connects upper chord 7, the four web members connects lower chord 8, by that analogy.
In the present embodiment, hold down gag 4 also comprises mounting rod 402, the two ends of described mounting rod 402 are detachably arranged on respectively on two U-shaped sides 303 of rack body 3, compressing member 401 mounting rod 402 that is threaded, and compressing member 401 runs through mounting rod 402, turn compressing member 401, compressing member 401 can move towards groove 304, or away from groove 304.
In the present embodiment, the two ends of mounting rod 402 are threaded with two U-shaped sides 303 of rack body 3 respectively, mounting rod 402 is is easily mounted and dismounted, mounting rod 402 is also to provide supporting role in the time of work, has ensured the stable of mounting rod 402 so mounting rod 402 is threaded.
In the present embodiment, compressing member 401 is provided with handle 403 away from one end of groove 304, has facilitated the turn of compressing member 401.
In the present embodiment, alignment part 1 is a channel-section steel, and steel tank is the device being often applied in steel work, and comparatively robust, and shape takes the shape of the letter U exactly, can directly draw materials, and has removed from and has needed extra trouble of producing.
Claims (6)
1. spatial mesh structure medium-small diameter penstock installation method, is characterized in that, comprises the following steps:
A, web member (9) is divided into two sections, one section is raw footage 1/3rd, is called short section of steel pipe (5), and another section is 2/3rds of raw footage, is called a long section steel pipe (6);
B, make a straightening support, this straightening support comprises alignment part (1) and multiple support (2), described alignment part (1) is vertical bar shape, and on alignment part (1), there is one side to be provided with the groove running through along its bearing of trend, described support (2) comprises rack body (3) and hold down gag (4), described rack body (3) takes the shape of the letter U, be on rack body (3), to be provided with a U-shaped groove (301), the bottom land of this U-shaped groove (301) is provided with the groove (304) coordinating with alignment part (1), the degree of depth of the groove (304) of described rack body (3) is less than the thickness of alignment part (1), and the bearing of trend of groove (304) is consistent with the bearing of trend of U-shaped groove (301), described hold down gag (4) is removably mounted on the U-shaped opening (302) of rack body (3) and locates, it is just provided with compressing member (401) to the position at groove (304) center, compressing member (401) is perpendicular to groove (304), and can move along its bearing of trend,
C, first the section of length steel pipe (6) is welded and fixed on chord member, then the short section of steel pipe of laminating of the one side with groove (5) by alignment part (1), the width of the groove of alignment part (1) is less than the diameter of steel pipe, short section of steel pipe (5) should be absorbed in groove with the position of alignment part (1) laminating, a part for alignment part (1) and short section of steel pipe (5) laminating, another part exceeds short section of steel pipe (5), then use support (2) that alignment part (1) and short section of steel pipe (5) colligation are fixed together, the part that exceeds short section of steel pipe (5) of last alignment part (1), adopting uses the same method is fixed together with the colligation of long section steel pipe (6), and cutting off place's seamless link between short section of steel pipe (5) and long section steel pipe (6),
D, short section of steel pipe (5) is welded and fixed on chord member, then carries out the welding of junction between short section of steel pipe (5) and long section steel pipe (6), after welding is good, disassemble straightening support.
2. spatial mesh structure medium-small diameter penstock installation method according to claim 1, is characterized in that: in described row's web member (9), the chord member that the short section of steel pipe (5) of adjacent web member (9) connects is different.
3. spatial mesh structure medium-small diameter penstock installation method according to claim 1, it is characterized in that: the hold down gag (4) described in step B also comprises mounting rod (402), the two ends of described mounting rod (402) are detachably arranged on respectively on two U-shaped sides (303) of rack body (3), compressing member (401) mounting rod (402) that is threaded, and compressing member (401) runs through mounting rod (402).
4. spatial mesh structure medium-small diameter penstock installation method according to claim 3, is characterized in that: described compressing member (401) is provided with handle (403) away from one end of groove (304).
5. spatial mesh structure medium-small diameter penstock installation method according to claim 3, is characterized in that: the two ends of described mounting rod (402) are threaded with two U-shaped sides (303) of rack body (3) respectively.
6. spatial mesh structure medium-small diameter penstock installation method according to claim 1, is characterized in that: the alignment part (1) described in step B is a channel-section steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410113605.1A CN103883130B (en) | 2014-03-25 | 2014-03-25 | Spatial mesh structure medium-small diameter penstock installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410113605.1A CN103883130B (en) | 2014-03-25 | 2014-03-25 | Spatial mesh structure medium-small diameter penstock installation method |
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| CN103883130A true CN103883130A (en) | 2014-06-25 |
| CN103883130B CN103883130B (en) | 2015-12-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411748A (en) * | 2020-10-28 | 2021-02-26 | 上海二十冶建设有限公司 | Method for assembling through opening of truss structure of spatial curved surface pipe |
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| GB2423111A (en) * | 2005-02-09 | 2006-08-16 | Everett Crack | Arching forming device |
| CN201874233U (en) * | 2010-10-29 | 2011-06-22 | 中建三局建设工程股份有限公司 | Modular integral jacking steel platform formwork system with few support points at low position |
| JP5080754B2 (en) * | 2006-06-29 | 2012-11-21 | 株式会社竹中工務店 | Method for assembling long material and assembly jig used in the method |
| CN103470058A (en) * | 2013-09-06 | 2013-12-25 | 上海市机械施工集团有限公司 | Installation method of upper chord and lower chord of steel truss and temporary support |
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2014
- 2014-03-25 CN CN201410113605.1A patent/CN103883130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2423111A (en) * | 2005-02-09 | 2006-08-16 | Everett Crack | Arching forming device |
| JP5080754B2 (en) * | 2006-06-29 | 2012-11-21 | 株式会社竹中工務店 | Method for assembling long material and assembly jig used in the method |
| CN201874233U (en) * | 2010-10-29 | 2011-06-22 | 中建三局建设工程股份有限公司 | Modular integral jacking steel platform formwork system with few support points at low position |
| CN103470058A (en) * | 2013-09-06 | 2013-12-25 | 上海市机械施工集团有限公司 | Installation method of upper chord and lower chord of steel truss and temporary support |
Non-Patent Citations (2)
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| 张平等: ""浅谈火力发电厂管桁钢屋架的现场制作"", 《河南机电高等专科学校学报》, vol. 17, no. 3, 31 May 2009 (2009-05-31) * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411748A (en) * | 2020-10-28 | 2021-02-26 | 上海二十冶建设有限公司 | Method for assembling through opening of truss structure of spatial curved surface pipe |
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| CN103883130B (en) | 2015-12-02 |
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