CN104453248A - Complex irregular-shaped multi-layer net rack construction method based on layered modular assembling technology - Google Patents
Complex irregular-shaped multi-layer net rack construction method based on layered modular assembling technology Download PDFInfo
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Abstract
The invention relates to multi-layer net rack construction methods, in particular to a complex irregular-shaped multi-layer net rack construction method based on a layered modular assembling technology. The construction method comprises the following steps that (1) firstly, small plane units are assembled on the ground; points where welded balls are placed are positioned through a total station, wherein the center lines of the balls and the center lines of pipes are located on the same horizontal plane, pipe fittings and the balls are in middle connection, gaskets are arranged in ball and pipe butt joint ports, and gaps are reserved in the ball and pipe butt joint ports; (2) after small assembly units are assembled, module assembling is performed; (3) modules are welded, wherein after assembling is completed, the modules are welded according to the sequence of welding from main chord members and web members in the middle to the two sides and from inside to outside; (4) the modules are hoisted, wherein each module is provided with five hoisting points, one hoisting point of the five hoisting points of each module is a main rope hoisting point which passes through the gravity center of the corresponding module, and the remaining four hoisting points adjust relative postures of the modules through chain blocks; (5) the modules are hoisted, wherein the modules are hoisted in place through a crawler crane. The construction method can simplify complex irregular-shaped multi-layer net rack construction and improve construction efficiency.
Description
Technical field
The present invention relates to Multilayered net frame construction method, particularly relate to a kind of Complex Different Shape Multilayered net frame construction method.
Background technology
Since the 2008 main competition fields of the Chinese Olympic Games " Bird's Nest ", the large stadium of the steel work of China gets more and more.These newly-built steel buildings are in order to pursue the visual effect of building, and its structure becomes increasingly complex, and shape is more and more peculiar.
For these buildings, the construction of its steel structure net rack mainly contains following method whole hanging method, Integral Lifting, aerial sliding methed, Assembly in pieces at height, and piecemeal Method for Installation etc. are several.
overall (piecemeal) lift-on/lift-off system:according to structural condition, by overall for space truss structure hoisting, utilize existing bearing during Steel Structure Installation or the auxiliary installation of supplemental support moulding bed is set.Scheme advantage: rack piecemeal installation on ground, construction quality is high, and work plane is many, short construction period, big machinery hoisting technology maturation, and efficiency of construction is high, safe and reliable, overall construction economy high efficiency.Scheme shortcoming: it is many that ground takies assembled place, and add main equipment input.
integral Lifting:first according to the projected area position of rack, undertaken levelling according to the lower edge face of rack by scaffold building platform, space truss structure (piecemeal) entirety assembly on platform, the Z value reduction of nearly vertical direction in grid node design three-dimensional coordinate in assembled process, horizontal direction X and Y value constant.Lifting process adopts hoist engine or hydraulic synchronization Robotics, does measure for improvement, to rack (piecemeal) Integral in-position after assembled welding at steel column top.Scheme advantage: platform for lining height is effectively reduced, saves full hall frame measure amount, make use of ground or flooring, improve working security.Lifting operation technique is advanced, high in technological content, adopts after promoting, decreases the input of big machinery.Consolidation service face is large, short construction period.Scheme shortcoming: on the basis utilizing existing ground or flooring platform, still want a large amount of full hall scaffolds, construction cost is high; Measure amount is large, full hall scaffold set up and the dismounting cycle long, be unfavorable for the entirety duration; Consolidation service or the scaffolding platform occupied ground time long, other specialty cannot be constructed completely.
aerial sliding methed:first set up bracing members, at bracing members top erection slippage beam, first from one end, start construction and set up mobile platform for lining, rack on a mobile platform assembled complete a unit after, unloading, mobile platform for lining, assembled next unit, completes Construction of The Grids successively.Scheme advantage: the mode favourable minimizing measure amount that rack accumulation slippage is in place, maximum benefit reduces amount of high-altitude operation, and construction technology is advanced, and high in technological content, working security is higher.Scheme shortcoming: support jig and slippage beam measure amount drop into higher, and construction cost is high; Operation side is little, only at one end works, and is unfavorable for the overall duration; Refer to that corridor roof system is longer, skidding distance is comparatively large, and accumulated error is large.
assembly in pieces at height:full hall support scaffolding platform set up by ground immediately below space truss structure or flooring, then utilizes support platform roof system rack original position assembly, welding.After top roof structure and berm execution complete, roof system rack is unloaded, then remove full hall scaffold support platform.Scheme advantage: the precision adjustment that the favourable high-altitude of mode that full hall scaffold sets up support platform is installed, mounting platform area is large, is conducive to the safety of constructor, is convenient to ensure welding quality.Scheme shortcoming: scaffolding platform set up the needs longer time, the time taking inner space is long, space large, is unfavorable for inner civil engineering and dynamo-electricly installs, and this engineering so short duration cannot complete; Although scaffold can have enough to meet the need, machinery can be strengthened and drop into and elongate the duration; According to the scaffolding platform of so large volume, large density, construction cost is too high, and economy is unreasonable.
This engineering rack is different from traditional rack type, and the solder sphere of upper lower edge all on the same axis, in two (many) layers and be limit surface modeling on facade, traditionally cannot construct by construction method.In view of design feature and company technique advantage, break the normal procedure and invented the complicated abnormal shape Multilayered net frame construction method of modularization, unitized multi-layered modular.
Summary of the invention
The present invention is intended to the problems referred to above solving prior art, provides a kind of Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process.The present invention can simplify different for complexity Multilayered net frame construction, improves efficiency of construction.
For solving the problem, a kind of Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process, it comprises: adopt earth module assembled, high-altitude module hoisting, adopts high altitude bulk between module and module, and Specific construction step is as follows:
Step one, on ground, advanced parallel planes junior unit is assembled; Requirement ground is welded, ball accurate positioning, and what adopt total powerstation to carry out solder sphere puts point location, and ball, tube hub line are at a horizontal plane, and pipe fitting is connected between two parties with ball, establish packing ring to stay gap in bulb docking port;
Step 2, smallest assembled rigid unit is assembled complete after carry out module spliced dress;
Step 3, module weld: assembled complete after welding sequence weld to both sides according to from middle main chord, web member, from inside to outside weld, same pipe fitting avoids two ends to weld simultaneously;
Step 4, module hoisting, each module establishes five suspension centres, and one is main rope suspension centre, and main rope suspension centre is by module center of gravity, and other 4 suspension centres carry out the adjustment of relative pose to module by Chain block;
Step 5, module hoisting, module adopts crawler crane to lift, and is slowly off the hook when module drops on directly over moulding bed, and module differs 2mm during with the moulding bed strong point, off the hook stops, and uses total powerstation three-dimensional localization, and module locates errorless rear off the hook, and lifting puts in place.
The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, described step one also comprises the division of unit:
First, formal approximation between the junior unit that division is formed, processing length is similar to
Secondly, divide the gradual change that the junior unit formed utilizes net shell curved surface, accomplish structure unification substantially, assembled complexity is close, is convenient to the difficulty reducing field technician and constructor's manipulation, improves quality.
Finally, the consumption at utmost reducing auxiliary moulding bed to be considered when junior unit divides.
The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, in the middle of described step 3, module relative pose is not by regulating at the relative relief of three centre ofs sphere of the same face on module lower edge.
The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, described step 4 is when assembled, first mark assembled unit ground line-transect, then platform for lining is set up, the chord member girder unit made is gone up tire successively according to the position of unit combination, finally with time beam element, girder is connected.
The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, in described step 5, when junior unit divides, has formulated unique erection sequence, has numbered in order and install one by one during installation.
The modular dividing elements rack region of the present invention, when lifting elements assembled, first assembled plane smallest assembled rigid unit, the assembled each layer smallest assembled rigid unit of recombinant forms the mode of lifting module, complete the shaping of final modularization lifting elements, modularization assemble, lifting, solve the installation of Complex Different Shape rack, and integral construction efficiency significantly promotes.The present invention adequately achieves Modern Large tool construction operation; Effectively complete the construction of two (many) layers rack of Complex Different Shape; Engineering practice proves that the method has for the lifting of two (many) layers space truss structure of Complex Different Shape and simplifies, the obvious effect of raising the efficiency.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated:
The Complex Different Shape Multilayered net frame construction method of a kind of delamination modularization assembling process of the present invention, comprise two (many) layers Construction of The Grids of abnormity and adopt earth module assembled, high-altitude module hoisting, adopts high altitude bulk between module and module, and Specific construction step is as follows:
The division of junior unit:
First, formal approximation between the junior unit that division is formed, processing length is similar to;
Secondly, divide the gradual change that the junior unit formed utilizes net shell curved surface, accomplish structure unification substantially, assembled complexity is close, is convenient to the difficulty reducing field technician and constructor's manipulation, improves quality.
Finally, the consumption at utmost reducing auxiliary moulding bed to be considered when junior unit divides.
On ground, advanced parallel planes junior unit is assembled; Technical essential is: ground solder sphere accurate positioning, what adopt total powerstation to carry out solder sphere puts point location, bulb center line is at a horizontal plane, pipe fitting is connected between two parties with ball, establish packing ring to stay gap in bulb docking port: when assembled, first mark assembled unit ground line-transect, then set up platform for lining, the chord member girder unit made is gone up tire successively according to the position of unit combination, finally with time beam element, girder is connected.
Smallest assembled rigid unit is assembled complete after carry out module spliced dress, technical essential is: moulding bed three-dimensional coordinate is accurate; Solder technology require be: assembled complete after welding sequence weld to both sides according to from middle main chord, web member, from inside to outside weld, same pipe fitting avoids two ends to weld simultaneously;
Module hoisting, each module establishes 5 suspension centres, and one is main rope suspension centre, and main rope suspension centre is by module center of gravity, and other 4 suspension centres carry out the adjustment of relative pose to module by Chain block; Technical essential: module relative pose not regulating at three centre of sphere relative reliefs of the same face by module lower edge;
When junior unit divides, formulate unique erection sequence, numbered in order during installation and install one by one.
Module adopts 350 tons of crawler cranes to lift, and is slowly off the hook when module drops on directly over moulding bed, and module differs 2mm during with the moulding bed strong point, off the hook stops, and carries out total powerstation three-dimensional localization, and the module errorless rear off the hook in location, lifting puts in place.
Claims (5)
1. a Complex Different Shape Multilayered net frame construction method for delamination modularization assembling process, it comprises: adopt earth module assembled, high-altitude module hoisting, adopts high altitude bulk between module and module, it is characterized in that, Specific construction step is as follows:
Step one, on ground, advanced parallel planes junior unit is assembled; Requirement ground is welded, ball accurate positioning, and what adopt total powerstation to carry out solder sphere puts point location, and ball, tube hub line are at a horizontal plane, and pipe fitting is connected between two parties with ball, establish packing ring to stay gap in bulb docking port;
Step 2, smallest assembled rigid unit is assembled complete after carry out module spliced dress;
Step 3, module weld: assembled complete after welding sequence weld to both sides according to from middle main chord, web member, from inside to outside weld, same pipe fitting avoids two ends to weld simultaneously;
Step 4, module hoisting, each module establishes five suspension centres, and one is main rope suspension centre, and main rope suspension centre is by module center of gravity, and other four suspension centres carry out the adjustment of relative pose to module by Chain block;
Step 5, module hoisting, module adopts crawler crane to lift, and is slowly off the hook when module drops on directly over moulding bed, and module differs 2mm during with the moulding bed strong point, off the hook stops, and uses total powerstation three-dimensional localization, and module locates errorless rear off the hook, and lifting puts in place.
2. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, is characterized in that, described step one also comprises the division of unit:
First, formal approximation between the junior unit that division is formed, processing length is similar to
Secondly, divide the gradual change that the junior unit formed utilizes net shell curved surface, accomplish structure unification substantially, assembled complexity is close, is convenient to the difficulty reducing field technician and constructor's manipulation, improves quality,
Finally, the consumption at utmost reducing auxiliary moulding bed to be considered when junior unit divides.
3. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, it is characterized in that, in the middle of described step 3, module relative pose is not by regulating at the relative relief of three centre ofs sphere of the same face on module lower edge.
4. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, it is characterized in that, described step 4 is when assembled, first mark assembled unit ground line-transect, then platform for lining is set up, the chord member girder unit made is gone up tire successively according to the position of unit combination, finally with time beam element, girder is connected.
5. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, is characterized in that, in described step 5, when junior unit divides, has formulated unique erection sequence, has numbered in order and install one by one during installation.
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Cited By (11)
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| CN104831939A (en) * | 2015-05-22 | 2015-08-12 | 常州第一建筑集团有限公司 | Bolt ball welding ball mixed node large span cantilever grid structure construction method |
| CN105569358A (en) * | 2015-12-15 | 2016-05-11 | 中国建筑第八工程局有限公司 | Construction method of special-shaped curved surface roof with large span and multiple curvatures |
| CN106609561A (en) * | 2015-10-22 | 2017-05-03 | 江苏沪宁钢机股份有限公司 | A spherical net shell block stacked assembly method |
| CN111005454A (en) * | 2019-12-09 | 2020-04-14 | 中国电建集团河南工程有限公司 | Flue gas purification room net rack block hoisting construction method |
| CN111335648A (en) * | 2020-03-31 | 2020-06-26 | 五冶集团上海有限公司 | Layered and segmented installation method for large-span spherical crown-shaped grid structure |
| CN111335647A (en) * | 2020-03-31 | 2020-06-26 | 五冶集团上海有限公司 | Sectional hoisting construction method for large-span spherical crown-shaped grid structure |
| CN112814247A (en) * | 2021-01-04 | 2021-05-18 | 上海市机械施工集团有限公司 | Method for installing middle-mounted compression ring spoke type tensioning structure |
| CN113123469A (en) * | 2021-03-24 | 2021-07-16 | 中国五冶集团有限公司 | Method for constructing complex curved surface modeling roof grid structure |
| CN113833277A (en) * | 2021-08-26 | 2021-12-24 | 中铁建设集团北京工程有限公司 | Construction method for decomposing primary and secondary beams of steel latticed shell |
| CN114086669A (en) * | 2021-11-30 | 2022-02-25 | 中国五冶集团有限公司 | Large-scale space special-shaped curved surface steel net rack modular rapid construction method |
| CN115162813A (en) * | 2022-07-14 | 2022-10-11 | 中国三冶集团有限公司 | Ground assembling method for cylindrical thin oil tank piston module |
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Cited By (14)
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| CN104831939A (en) * | 2015-05-22 | 2015-08-12 | 常州第一建筑集团有限公司 | Bolt ball welding ball mixed node large span cantilever grid structure construction method |
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| CN105569358A (en) * | 2015-12-15 | 2016-05-11 | 中国建筑第八工程局有限公司 | Construction method of special-shaped curved surface roof with large span and multiple curvatures |
| CN111005454A (en) * | 2019-12-09 | 2020-04-14 | 中国电建集团河南工程有限公司 | Flue gas purification room net rack block hoisting construction method |
| CN111335647A (en) * | 2020-03-31 | 2020-06-26 | 五冶集团上海有限公司 | Sectional hoisting construction method for large-span spherical crown-shaped grid structure |
| CN111335648A (en) * | 2020-03-31 | 2020-06-26 | 五冶集团上海有限公司 | Layered and segmented installation method for large-span spherical crown-shaped grid structure |
| CN112814247A (en) * | 2021-01-04 | 2021-05-18 | 上海市机械施工集团有限公司 | Method for installing middle-mounted compression ring spoke type tensioning structure |
| CN113123469A (en) * | 2021-03-24 | 2021-07-16 | 中国五冶集团有限公司 | Method for constructing complex curved surface modeling roof grid structure |
| CN113833277A (en) * | 2021-08-26 | 2021-12-24 | 中铁建设集团北京工程有限公司 | Construction method for decomposing primary and secondary beams of steel latticed shell |
| CN114086669A (en) * | 2021-11-30 | 2022-02-25 | 中国五冶集团有限公司 | Large-scale space special-shaped curved surface steel net rack modular rapid construction method |
| CN114086669B (en) * | 2021-11-30 | 2024-03-19 | 中国五冶集团有限公司 | Modularized rapid construction method for large-scale space special-shaped curved surface steel net rack |
| CN115162813A (en) * | 2022-07-14 | 2022-10-11 | 中国三冶集团有限公司 | Ground assembling method for cylindrical thin oil tank piston module |
| CN115162813B (en) * | 2022-07-14 | 2024-05-03 | 中国三冶集团有限公司 | Ground assembling method for cylindrical thin oil tank piston module |
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