CN101864840B - Construction method for spatial special multi-curved surface netlike shell formed by connecting gusset plates - Google Patents
Construction method for spatial special multi-curved surface netlike shell formed by connecting gusset plates Download PDFInfo
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- CN101864840B CN101864840B CN2010101762343A CN201010176234A CN101864840B CN 101864840 B CN101864840 B CN 101864840B CN 2010101762343 A CN2010101762343 A CN 2010101762343A CN 201010176234 A CN201010176234 A CN 201010176234A CN 101864840 B CN101864840 B CN 101864840B
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Abstract
The invention provides a construction method for a spatial special multi-curved surface netlike shell formed by connecting gusset plates. The method comprises the following steps of: arranging the spatial special multi-curved surface netlike shell by using a high-altitude bulk-way assembling method during the arrangement; welding members by using the gusset plates to form the spatial special multi-curved surface netlike shell, wherein the step comprises a sub-step of previously inputting a coordinate parameter of each joint of the arranged netlike shell, storing the parameter in an electronic total station and fixing the gusset plates to a jack of a support respectively; arranging the support for fixing the gusset plates at a planar position determined by the total station under the control of the total station; and adjusting the height of the support to make the gusset plate reach the specified height and the like. The construction method for the spatial special multi-curved surface netlike shell formed by connecting the gusset plates has the advantages of accurate positioning of each joint, low cost, simple manufacturing, convenient operation and the capability of increasing the working efficiency and ensuring the construction quality.
Description
Technical field
The present invention relates to the realm of building construction, particularly utilize the method for total powerstation control steel work space mounting location.
Background technology
Total powerstation, promptly full site type electronic tachometer (Electronic Total Station).Being a kind of light harvesting, mechanical, electrically being the high-tech measuring apparatus of one, is to catchment the straight angle, vertical angle, distance (oblique distance, flat apart from), vertical survey function in the instrument of surveying and mapping system of one.Once settle instrument because of it and just can finish whole surveying works on this survey station, so be referred to as total powerstation.Be widely used in precise engineering survey or deformation monitoring fields such as heavy construction on the ground and construction of underground tunnel.
Along with improving constantly of people's living standard, people are more and more higher to the requirement of building, constantly pursue appearance and modeling on economic, practical basis.The steel screen structure is as a kind of novel building structure, particularly to spatial special multi-curved surface net shell, not only have characteristics such as novel structure, when satisfying safety of structure, rolled steel dosage is less, have better economic, and all kinds of moulding of long span building roofing are had unique compliance, in engineerings such as large-scale utilities building stadiums, conference and exhibition center, obtained using widely.
Spatial special multi-curved surface net shell adopts the construction technology of high altitude bulk method substantially, drop into turnover materials such as a large amount of scaffolds, and the construction period is longer, and the working measure expense is bigger; Because the net shell is the spatial special structure, and each three-dimensional coordinate point position is all different, the problem that how to solve accurate location is the technological difficulties of this type of latticed shell structure construction on the construction technology.
In the spatial special multi-curved surface net shell construction prior art, adopt the space coordinates of total powerstation with net shell node mostly, survey is set on the locating rack that is welded on the steel pipe moulding bed, carry out the net shell node positioning and fixing again and be connected net shell rod member with welding, efficiency of construction is low, and the construction period is longer, the operating expenses height.
Summary of the invention:
For overcoming the location defective of net shell node in the prior art, the present invention discloses a kind of spatial special multi-curved surface net shell job practices that is connected and composed by gusset plate.
The technical scheme that the present invention is adopted for its technical purpose of realization is: a kind of spatial special multi-curved surface net shell job practices that is connected and composed by gusset plate, this method is an installing space at the construction field (site), in spatial special multi-curved surface net shell work progress, the method of on-site consolidation is carried out in employing at installing space, after adopting the gusset plate positioning and fixing, with described gusset plate and rod member welding, form spatial special multi-curved surface net shell, it is characterized in that:
A, X, Y with each node of installation net shell, the input of Z three-dimensional coordinate parameter also are stored in the total powerstation;
B, respectively gusset plate is fixed to eyelid retractor the top on;
C, described total powerstation are determined the accurate position on the plane, node place on each eyelid retractor according to the X, the Y coordinate figure that store each gusset plate within it;
D, described total powerstation are determined the accurate height of the node place Z coordinate figure on each eyelid retractor according to the Z coordinate figure that stores each gusset plate within it;
Connect by corresponding rod member between E, all gusset plates that will determine through step C, D, form spatial special multi-curved surface net shell;
After the spatial special multi-curved surface net shell overall fixed that F, step e form, remove the eyelid retractor of support node plate.
Concrete, utilize among the step B spot welding with described gusset plate be fixed to described eyelid retractor the top.
A kind of spatial special multi-curved surface net shell job practices that connects and composes by gusset plate of the present invention, accurate to each node locating, have superiority with low cost, that making is simple, easy to operate, work efficiency improves, construction quality guarantees.
The specific embodiment
Present embodiment is a kind of spatial special multi-curved surface net shell job practices that is connected and composed by gusset plate, present embodiment is a kind of method that adopts the construction of high altitude bulk method, in total powerstation, store the node location of the working gusset plate of whole spatial special surface net shell, after node is determined, then, by welded mesh shell rod member, each node is connected, the node place generally uses gusset plate, the gusset plate that several forms such as " ten " word gusset plate and " Y " type gusset plate are arranged, in whole construction course, determine that by total powerstation node location is a method commonly used in the art, by the mistake total powerstation or so that the locus of gusset plate is accurately located, difficult point in the actual application is exactly how node is fixed to the place that total powerstation is determined, present embodiment provides a kind of adjustable for height eyelid retractor that utilizes, the support is fixed to definite position with a gusset plate, then, each node is welded to connect with net shell rod member, at last, remove eyelid retractor, the eyelid retractor that present embodiment uses generally can support one to two ton weight, therefore is enough to net shell rod member is on every side welded.
The adjustable supports device of present embodiment is owing to can adjust up and down, and be provided with the top that a location rest steel plate is welded on support bar at the top, after the bearing vertical rod of this adjustable supports device has installed, can do the plane around the bearing pole steel tube rotates, and coordinate point is finely tuned according to total powerstation, make its accurate location, finally meet the three dimensional space coordinate requirement of steel screen node, and be convenient to aim at the three-dimensional coordinate point at the bottom of the steel screen node and locate.Simultaneously, use spot welding in this method, temporarily anchor on the location rest steel plate of adjustable supports device, both guaranteed the steel screen node locating accurately, firmly, can carry out net shell rod member location, connection again immediately and welding is installed, formation net shell integral body the steel screen gusset plate.
In the present embodiment, a kind of spatial special multi-curved surface net shell job practices that is connected and composed by gusset plate, this method are in spatial special multi-curved surface net shell side formula process, adopt the high altitude bulk method to install, utilize gusset plate that rod member is welded, form spatial special multi-curved surface net shell, may further comprise the steps:
A, X, Y with each node of installation net shell, the input of Z three-dimensional coordinate parameter also are stored in the total powerstation;
When design, each definite node coordinate is determined, these X, Y, Z coordinate information are stored in the total powerstation, finishes this step.
B, respectively gusset plate is fixed to eyelid retractor the top on;
Eyelid retractor is a kind of eyelid retractor that can regulate height, a jacking is set on its top, in the present embodiment, a block plate is set on the jacking on eyelid retractor top, certain width is arranged, eyelid retractor also can rotate, and gusset plate is no matter be " ten " word gusset plate or " Y " type gusset plate, all be that node is fixed on the steel plate, after finishing in order constructing, conveniently to discharge, the gusset plate point to be welded on the steel plate.This method can be constructed by the position in work progress, and once all gusset plates with a position all spot weld respectively on the different eyelid retractors.
C, described total powerstation are determined the accurate position on the plane, node place on each eyelid retractor according to the X, the Y coordinate figure that store each gusset plate within it;
At the construction field (site), generally not at same horizontal plane, possible some place is higher, some is local low, as long as this step is determined X, the Y value of the gusset plate on working face, because position by each definite gusset plate of total powerstation, the coordinate information that generally stores the node on the total powerstation into is X, Y, the Z three-dimensional coordinate of a node, on plane easily, it is very easy that nodes X, Y coordinate are marked, and the eyelid retractor of the gusset plate determined is placed to X, Y coordinate point place.
D, described total powerstation are determined the accurate height of the node place Z coordinate figure on each eyelid retractor according to the Z coordinate figure that stores each gusset plate within it;
When regulating the eyelid retractor height, utilize total powerstation to control, can heighten the height of eyelid retractor fast when beginning, finely tune when height, when gusset plate stops during to height that total powerstation is determined, at this moment, the X of gusset plate, Y, Z coordinate are just definite.
Connect by corresponding rod member between E, all gusset plates that will determine through step C, D, form spatial special multi-curved surface net shell;
When a position or whole gusset plates have all arrived anchor point, with net shell rod member with on each spot welding, gusset plate by corresponding rod member welding after, form the spatial special multi-curved surface net shell in the design.
After the spatial special multi-curved surface net shell overall fixed that F, step e form, remove the eyelid retractor of support node plate.
Because the steel plate on the eyelid retractor jacking is that spot welding is connected with gusset plate, remove easily.
Present embodiment uses in the construction of high altitude bulk method to spatial special multi-curved surface net shell, in its top bit is the three dimensional space coordinate of net shell rod member connected node bottom, net shell rod member connected node generally is a cruciform gusset plate, the T-shaped gusset plate is also arranged, and the position of each gusset plate determines it is complicated, unique three dimensional space coordinate.General measure method, the location technology of building operations can't satisfy its requirement, for this reason, adopt the control of adjustable supports device and total powerstation, and the three-dimensional coordinate point of net shell rod member connected node is precisely located.Prior meaning be with low cost, make simple, easy to operate, work efficiency and improve.
The adjustable supports device of the embodiment of the invention with and better embodiment have as advantage:
(1) vertically adjustable, WidFin is precisely located fast;
(2) vertical positioning control steel plate and the welding of U type rest seat had both guaranteed to have certain supporting capacity, can do the plane around adjustable steel support steel pipe again and rotate the best stress point of searching, and solve the problem of misalignment that deviations brings;
(3) conveniently remove as pad the gusset plate intersection area, and the adjustable supports device also can reuse;
(4) it is indeformable support to adopt reinforcing bar to guarantee, can make full use of the engineering bar dowel simultaneously.
Claims (2)
1. spatial special multi-curved surface net shell job practices that connects and composes by gusset plate, this method is an installing space at the construction field (site), in spatial special multi-curved surface net shell work progress, the method of on-site consolidation is carried out in employing at installing space, after adopting the gusset plate positioning and fixing, with described gusset plate and rod member welding, form spatial special multi-curved surface net shell, it is characterized in that: may further comprise the steps:
A, X, Y with each node of installation net shell, the input of Z three-dimensional coordinate parameter also are stored in the total powerstation;
B, gusset plate is fixed on the top of eyelid retractor respectively;
C, described total powerstation are determined the accurate position on the plane, node place on each eyelid retractor according to the X, the Y coordinate figure that store each gusset plate within it;
D, described total powerstation are determined the accurate height of the node place Z coordinate figure on each eyelid retractor according to the Z coordinate figure that stores each gusset plate within it;
Connect by corresponding rod member between E, all gusset plates that will determine through step C, D, form spatial special multi-curved surface net shell;
After the spatial special multi-curved surface net shell overall fixed that F, step e form, remove the eyelid retractor of support node plate.
2. job practices according to claim 1: it is characterized in that: utilize spot welding that described gusset plate is fixed on the top of described eyelid retractor among the step B.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101762343A CN101864840B (en) | 2010-05-14 | 2010-05-14 | Construction method for spatial special multi-curved surface netlike shell formed by connecting gusset plates |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101762343A CN101864840B (en) | 2010-05-14 | 2010-05-14 | Construction method for spatial special multi-curved surface netlike shell formed by connecting gusset plates |
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| CN101864840A CN101864840A (en) | 2010-10-20 |
| CN101864840B true CN101864840B (en) | 2011-09-28 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102953555A (en) * | 2012-11-14 | 2013-03-06 | 中冶天工集团有限公司 | Method for assembling large-area dual-curved-surface reticulated shell on ground |
| CN102943565B (en) * | 2012-11-30 | 2014-12-31 | 中国建筑第八工程局有限公司 | Construction method of large-sized arc-shaped wall |
| CN103556836B (en) * | 2013-07-30 | 2015-11-25 | 永升建设集团有限公司 | Spherical reticulated shells assembling and construction method under restricted clearance condition |
| CN104196247A (en) * | 2014-08-27 | 2014-12-10 | 浙江精工钢结构集团有限公司 | Special-shaped spatial network structure node control installation method |
| CN107060093B (en) * | 2017-03-31 | 2019-03-22 | 中建六局安装工程有限公司 | The support system and assembling method of large-scale oblique braiding gusset plate latticed shell structure |
| CN108731658A (en) * | 2018-08-14 | 2018-11-02 | 河北建设集团股份有限公司 | The method of precise positioning reticulated shell welded spherical node |
| CN109184236A (en) * | 2018-11-07 | 2019-01-11 | 上海宝冶冶金工程有限公司 | Adjustable type locating support |
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