CN103883130B - Spatial mesh structure medium-small diameter penstock installation method - Google Patents
Spatial mesh structure medium-small diameter penstock installation method Download PDFInfo
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- CN103883130B CN103883130B CN201410113605.1A CN201410113605A CN103883130B CN 103883130 B CN103883130 B CN 103883130B CN 201410113605 A CN201410113605 A CN 201410113605A CN 103883130 B CN103883130 B CN 103883130B
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Abstract
The invention discloses a kind of spatial mesh structure medium-small diameter penstock installation method, steel pipe is carried out being divided into two sections, one section is 1/3rd of raw steel length of tube, another section is 2/3rds of raw steel length of tube, long joining section steel pipe is first welded during installation, then by after short section of steel pipe and the colligation of long section steel pipe, shorter section of steel pipe is welded.The invention has the beneficial effects as follows: the present invention is when 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 then very convenient to be installed straight row, and pad cross arrangement of the present invention, ensure that stressed effect; By alignment part, make along straight line, after colligation, can conveniently to weld when long section steel pipe and short section of penstock installation.
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
Light-duty, firm, the large space of spatial mesh structure and the feature of transparency are being built and continuous exploration in structure design people and being more and more applied under innovating.In spatial mesh structure, use the minor diameter seamless steel tube of diameter 60 ~ 140mm in a large number, make web member to use, namely web member is arranged in truss, as Fig. 1, chord member and web member (9) is generally comprised in truss, chord member is generally mobile jib, upper chord (7) and lower chord (8) is divided in one group of chord member, upper chord (7) and lower chord (8) be arranged in parallel, namely arrange row's web member (9) between each group chord member to support, namely the two ends of web member (9) connect upper chord (7) and lower chord (8) respectively, such chord member carries out the support of vertical direction, web member (9) then carries out the support of horizontal direction, web member (9) is in the structure because great majority are locus, and because diameter is less, usually install in high empty position again everywhere, add length longer time, 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 is installed, but existing mounting method is all web member is truncated into isometric two sections, although install fairly simple like this, do not need to consider erection sequence, but this to install soundness inadequate, because a straight tube is when two ends are stressed, when carrying out bending to straight tube, the suffered Stress non-homogeneity of straight tube, it is positioned at the stressed in fact maximum of center, fracture is easier to like this at the pad place at center, thus cause the consequence being difficult to expect.
Summary of the invention
The object of the invention is to the shortcoming and defect overcoming above-mentioned prior art, provide a kind of spatial mesh structure medium-small diameter penstock installation method, solve existing web member because be divided into two sections of welding, cause the defect that support effect is bad.
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, carried out being divided into two sections by web member, one section is 1/3rd of raw footage, and be called short section of steel pipe, another section is 2/3rds of raw footage, is called 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 alignment part has one side be provided with the groove run 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, namely rack body is provided with a U-type groove, the bottom land of this U-type groove is provided with the groove coordinated with alignment part, the degree of depth of the groove of described rack body is less than the height of alignment part along groove depth direction, and the bearing of trend of groove is consistent with the bearing of trend of U-type 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 the direction perpendicular to groove,
C, first long section steel pipe is welded and fixed on chord member, then the one side of alignment part band groove to be fitted short section of steel pipe, the width of the groove of alignment part is less than the diameter of steel pipe, the position that short section of steel pipe and alignment part are fitted should be absorbed in groove, a part and the short section of steel pipe of alignment part are fitted, another part exceeds short section of steel pipe, then support is used alignment part and short section of steel pipe colligation to be fixed together, the part exceeding 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 to be welded and fixed on chord member, then to carry out welding of junction between short section of steel pipe with 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, the i.e. raw footage of 2/3rds, one section is short section, the i.e. raw footage of 1/3rd, shorten installation length like this, degree of safety is improve during installation, and web member blocks at 1/3rd places in the present invention, when web member is stressed in steel work, the moment of flexure at 1/3rd places is minimum, 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 install straight row, because that first installs only needs and chord member is welded and fixed, that then installs needs alignment, namely constantly mobile, the short section of steel pipe installed is like this namely because lightweight, namely staff is facilitated.In the present invention when long section steel pipe docks with short section of steel pipe, provide a good alignment part, ensure that the straightness accuracy between long section steel pipe and short section of steel pipe.
Further, in above-mentioned row's web member, the chord member of short section of fastener for connection of adjacent web member is different, namely 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, when short section of fastener for connection upper chord of the first web member, namely short section of steel pipe of the second web member connect lower chord, and short section of steel pipe of the 3rd web member then connects upper chord, short section of fastener for connection lower chord of the 4th web member, by that analogy.In prior art, pad is centralized arrangement, namely in straight line; when stressed, be easy to along this line interruption, and pad cross weld in the present invention; the pad of two adjacent web members can not be adjacent; protect web member, this principle is just as when building a wall, and fragment of brick intersects to be placed equally; make web member can bear larger power; after tested, case 1/3rd, 2/3rds divides, and the power that this group web member can bear is maximum.
Further, above-mentioned hold down gag also comprises mounting rod, the two ends of described mounting rod are detachably arranged on two U-shaped sides of rack body respectively, compressing member is threaded mounting rod, and compressing member runs through mounting rod, turn compressing member, namely 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, facilitates 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 operationally also to provide supporting role, so mounting rod is threaded ensure that the stable of mounting rod.
Further, above-mentioned alignment part is a channel-section steel, and steel tank is the device be often applied in steel work, and comparatively robust, and shape takes the shape of the letter U exactly, can directly draw materials, and eliminates and needs extra trouble of producing.
The invention has the beneficial effects as follows:
1, the present invention is when 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 then very convenient to be installed straight row, and pad cross arrangement of the present invention, ensure that stressed effect;
2 and the present invention by alignment part, can along straight line when making long section steel pipe and short section of penstock installation, after colligation, can conveniently weld, and this apparatus structure is fairly simple, installing/dismounting is also very easy to;
3, in this device, alignment part directly adopts channel-section steel, not only facilitates and draws materials, also reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of steel beam column;
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, 5-short section of steel pipe, the long section steel pipe of 6-, 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, carried out being divided into two sections by web member, one section is 1/3rd of raw footage, and be called short section of steel pipe 5, another section is 2/3rds of raw footage, is called 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 in vertical bar shape, and alignment part 1 has one side be provided with the groove run 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, namely rack body 3 is provided with a U-type groove 301, the bottom land of this U-type groove 301 is provided with the groove 304 coordinated with alignment part 1, the degree of depth of the groove 304 of described rack body 3 is less than the height of alignment part 1 along groove 304 depth direction, and the bearing of trend of groove 304 is consistent with the bearing of trend of U-type groove 301, described hold down gag 4 is removably mounted on U-shaped opening 302 place of rack body 3, 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 the direction perpendicular to groove 304,
C, first long section steel pipe 6 is welded and fixed on chord member, then the one side of alignment part 1 with groove to be fitted short section of steel pipe 5, the width of the groove of alignment part 1 is less than the diameter of steel pipe, the position that short section of steel pipe 5 and alignment part 1 are fitted should be absorbed in groove, a part and the short section of steel pipe 5 of alignment part 1 are fitted, another part exceeds short section of steel pipe 5, then support 2 is used alignment part 1 and the colligation of short section of steel pipe 5 to be fixed together, the part exceeding 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 to be welded and fixed on chord member, then to carry out welding of junction between short section of steel pipe 5 with 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, namely 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, when short section of steel pipe 5 of the first web member connects upper chord 7, namely 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 then connects upper chord the 7, four web member 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 two U-shaped sides 303 of rack body 3 respectively, compressing member 401 is threaded mounting rod 402, and compressing member 401 runs through mounting rod 402, turn compressing member 401, namely 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 operationally also to provide supporting role, so mounting rod 402 is threaded ensure that the stable of mounting rod 402.
In the present embodiment, compressing member 401 is provided with handle 403 away from one end of groove 304, facilitates the turn of compressing member 401.
In the present embodiment, alignment part 1 is a channel-section steel, and steel tank is the device be often applied in steel work, and comparatively robust, and shape takes the shape of the letter U exactly, can directly draw materials, and eliminates and needs extra trouble of producing.
Claims (6)
1. spatial mesh structure medium-small diameter penstock installation method, is characterized in that, comprise the following steps:
A, web member (9) is divided into two sections, one section is 1/3rd of raw footage, and be called short section of steel pipe (5), another section is 2/3rds of raw footage, is called 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 in vertical bar shape, and alignment part (1) has one side be provided with the groove run 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, namely rack body (3) is provided with a U-type groove (301), the bottom land of this U-type groove (301) is provided with the groove (304) coordinated with alignment part (1), the degree of depth of the groove (304) of described rack body (3) is less than the height of alignment part (1) along groove (304) depth direction, and the bearing of trend of groove (304) is consistent with the bearing of trend of U-type groove (301), described hold down gag (4) is removably mounted on U-shaped opening (302) place of rack body (3), 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 the direction perpendicular to groove (304),
C, first long section steel pipe (6) is welded and fixed on chord member, then the one side of alignment part (1) band groove is fitted short section of steel pipe (5), the width of the groove of alignment part (1) is less than the diameter of steel pipe, the position that short section of steel pipe (5) and alignment part (1) are fitted should be absorbed in groove, a part and the short section of steel pipe (5) of alignment part (1) are fitted, another part exceeds short section of steel pipe (5), then support (2) is used alignment part (1) and the colligation of short section of steel pipe (5) to be fixed together, the part exceeding 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) to be welded and fixed on chord member, then to carry out welding of junction between short section of steel pipe (5) with 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 the web member (9) described in a row, the chord member that 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 two U-shaped sides (303) of rack body (3) respectively, compressing member (401) is threaded mounting rod (402), 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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| CN201410113605.1A CN103883130B (en) | 2014-03-25 | 2014-03-25 | Spatial mesh structure medium-small diameter penstock installation method |
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| CN103883130B true CN103883130B (en) | 2015-12-02 |
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| CN112411748B (en) * | 2020-10-28 | 2022-08-09 | 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 |
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| "浅谈火力发电厂管桁钢屋架的现场制作";张平等;《河南机电高等专科学校学报》;20090531;第17卷(第3期);44-46,52 * |
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