CN104453248B - 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 PDF

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Publication number
CN104453248B
CN104453248B CN201310436434.1A CN201310436434A CN104453248B CN 104453248 B CN104453248 B CN 104453248B CN 201310436434 A CN201310436434 A CN 201310436434A CN 104453248 B CN104453248 B CN 104453248B
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module
construction
modules
assembled
junior unit
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CN201310436434.1A
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CN104453248A (en
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孙飞
李鸿骏
朱卫军
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上海宝冶集团有限公司
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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

The Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process

Technical field

The present invention relates to Multilayered net frame construction method, more particularly, to a kind of Complex Different Shape Multilayered net frame construction method.

Background technology

Since the 2008 Chinese main competition fields of the Olympic Games " Bird's Nest ", the large stadium of the steel construction of China gets more and more.These are new In order to pursue the visual effect of building, its structure becomes increasingly complex the steel building built, and shape is more and more peculiar.

For these buildings, the construction of its steel structure net rack mainly has following method whole hanging method, Integral Lifting, high-altitude Sliding method, Assembly in pieces at height, piecemeal Method for Installation etc. is several.

Overall (piecemeal) lift-on/lift-off system: according to structural condition, grid structure entirety hoisting utilizes during Steel Structure Installation Existing bearing or setting Auxiliary support moulding bed auxiliary are installed.Scheme advantage: rack piecemeal installation on ground, construction quality is high, work Face is many, short construction period, big machinery hoisting technology maturation, and efficiency of construction is high, safe and reliable, overall construction economy benefit High.Scheme shortcoming: occupancy assembled place in ground is many, and increased main equipment input.

Integral Lifting: be first according to the projected area position of rack, the lower chord plane according to rack passes through scaffold Set up platform and carry out levelling, the overall assembly on platform of grid structure (piecemeal), grid node design three during assembly In dimension coordinate, the z value of nearly vertical direction reduces, and horizontal direction x and y value are constant.Lifting process adopts hoist engine or hydraulic synchronization machine Device people's technology, does measure for improvement at steel column top, overall in place to the rack (piecemeal) after assembled welding.Scheme advantage: assembled Podium level is effectively reduced, and saves full hall frame measure amount, make use of ground or flooring, improve working security.Lifting Operation technique is advanced, high in technological content, after lifting, decreases the input of big machinery.Consolidation service face is big, construction period Short.Scheme shortcoming: on the basis of using existing ground or flooring platform, be still to substantial amounts of full hall scaffold, construction cost is high; Measure amount is big, and full hall scaffold is set up and the cycle of removing is long, is unfavorable for the overall duration;Consolidation service or the landing stage of scaffold take field The ground time is long, and other specialties cannot be constructed completely.

Aerial sliding methed: first set up bracing members, set up sliding beam at bracing members top, first from one end, start construction and set up Mobile platform for lining, rack is after assembly completes a unit on a mobile platform, unloading, mobile platform for lining, assembled next list Unit, is sequentially completed Construction of The Grids.Scheme advantage: rack accumulation slippage mode in place favorably reduces measure amount, the benefit of maximum It is to reduce amount of high-altitude operation, construction technology is advanced, and high in technological content, working security is higher.Scheme shortcoming: support jig and cunning Move beam measure amount and put into higher, construction cost height;Operation side is little, only works at one end, is unfavorable for the overall duration;Refer to corridor room Lid is longer, and skidding distance is larger, and cumulative error is big.

Assembly in pieces at height: full hall support scaffolding platform is set up on the ground of the underface of grid structure or flooring, so Utilize support platform roof system rack original position assembly, welding afterwards.After the completion for the treatment of top roof structure and berm execution, to roof system Rack is unloaded, then removes full hall scaffold support platform.Scheme advantage: the mode that full hall scaffold sets up support platform has The precision adjustment that sharp high-altitude is installed, mounting platform area is big, is conducive to the safety of workmen, is easy to ensure welding quality.Side Case shortcoming: setting up of the landing stage of scaffold needs longer time, the time length, the space that take inner space are big, are unfavorable for inside Civil engineering and dynamo-electric install, this engineering so short duration cannot complete;Although scaffold can have enough to meet the need, machinery throwing can be increased Enter and elongate the duration;According to the landing stage of scaffold of so large volume, big 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, facade is in Double (many) layers and be side surface modeling, cannot construct according to conventional construction method.In view of construction featuress and company technique advantage, beat Broken general invention modularity, the complicated abnormal shape Multilayered net frame construction method of unitized multi-layered modular.

Content of the invention

Present invention seek to address that the problems referred to above of prior art, provide a kind of Complex Different Shape of delamination modularization assembling process Multilayered net frame construction method.The present invention can construct complicated different Multilayered net frame and simplify, and improve efficiency of construction.

For solving the above problems, a kind of Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process, it wraps Include:, high-altitude module hoisting assembled using earth module, adopt high altitude bulk between module and module, Specific construction step is as follows:

Step one, first carries out plane junior unit on ground assembled;Require ground welding, ball accurate positioning, using total powerstation Carry out the point location of putting of solder sphere, in a horizontal plane, pipe fitting and ball connect between two parties, set in bulb docking port for ball, tube hub line Packing ring stays gap;

Step 2, carries out module after the completion of junior unit assembly assembled;

Step 3, module is welded: after the completion of assembly, welding sequence is welded to both sides according to from middle main chord, web member, from Interior to external welding, same pipe fitting avoids two ends to weld simultaneously;

Step 4, module hoisting, each module sets five suspension centres, suspension centre of restricting based on, and main rope suspension centre passes through module weight The heart, in addition 4 suspension centres by chain block, module is carried out with the regulation of relative pose;

Step 5, module hoisting, module is lifted using crawler crane, is slowly to fall when module falls directly over moulding bed Hook, module differs off the hook during 2mm with the moulding bed strong point and stops, and uses total powerstation three-dimensional localization, and module positions errorless rear off the hook, is lifted into Position.

The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, described step one also includes little The division of unit:

First, divide formal approximation between the junior unit being formed, processing length is approximate

Secondly, divide the gradual change that the junior unit being formed utilizes reticulated shell curved surface, accomplish that structure is substantially uniform, assembled complexity Close, it is easy to reduce the difficulty of field technician and workmen's manipulation, improve quality.

Finally, junior unit will consider when dividing at utmost to reduce the consumption of auxiliary moulding bed.

The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, in the middle of described step 3, mould Block relative pose is not by being adjusted in 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 in assembly When, first mark assembled rigid unit ground line-transect, then set up platform for lining, the chord member made girder unit is combined according to unit Position goes up tire successively, is finally connected girder with time beam element.

The Complex Different Shape Multilayered net frame construction method of described delamination modularization assembling process, in described step 5, little list When unit divides, formulate unique erection sequence, numbered in order during installation and install one by one.

The present invention with modular dividing elements rack region, lifting elements assembled when, first assembly plane junior unit, The assembled each layer junior unit of recombinant forms the mode of lifting module, completes the molding of final modularity lifting elements, modularity is spelled Dress, lifting, solve the installation of Complex Different Shape rack, integral construction efficiency is substantially improved.The present invention adequately achieves modern big Type mechanized construction operation;Effectively complete the construction of double (many) the layer racks of Complex Different Shape;Engineering practice proves the method pair Lifting in double (many) the layer grid structures of Complex Different Shape has and simplifies, and carries efficient obvious effect.

Specific embodiment

With reference to specific embodiment, the present invention is further illustrated:

A kind of Complex Different Shape Multilayered net frame construction method of present invention delamination modularization assembling process, double (many) including abnormity Layer Construction of The Grids adopts earth module assembled, and high-altitude module hoisting adopts high altitude bulk between module and module, Specific construction walks Suddenly as follows:

The division of junior unit:

First, divide formal approximation between the junior unit being formed, processing length is approximate;

Secondly, divide the gradual change that the junior unit being formed utilizes reticulated shell curved surface, accomplish that structure is substantially uniform, assembled complexity Close, it is easy to reduce the difficulty of field technician and workmen's manipulation, improve quality.

Finally, junior unit will consider when dividing at utmost to reduce the consumption of auxiliary moulding bed.

First carry out plane junior unit on ground assembled;Technical essential is: ground welding ball accurate positioning, is entered using total powerstation Row solder sphere put point location, in a horizontal plane, pipe fitting and ball connect bulb centrage between two parties, set packing ring in bulb docking port Stay gap: in assembly, first mark assembled rigid unit ground line-transect, then set up platform for lining, by the chord member made girder unit Position according to unit combination goes up tire successively, is finally connected girder with time beam element.

Carry out module assembly, technical essential is: moulding bed three-dimensional coordinate is accurate after the completion of junior unit assembly;Welding skill Art requires: after the completion of assembly, welding sequence is welded to both sides according to from middle main chord, web member, from inside to outside welds, same Pipe fitting avoids two ends to weld simultaneously;

Module hoisting, each module sets 5 suspension centres, suspension centre of restricting based on, and main rope suspension centre passes through module center of gravity, and in addition 4 Individual suspension centre carries out the regulation of relative pose by chain block to module;Technical essential: module relative pose passes through module lower edge Be not adjusted in three centre of sphere relative reliefs of the same face;

When junior unit divides, formulate unique erection sequence, numbered in order during installation and install one by one.

Module is lifted using 350 tons of crawler cranes, is slowly off the hook, module and moulding bed when module falls directly over moulding bed Off the hook during strong point difference 2mm stops, and carries out total powerstation three-dimensional localization, module positions errorless rear off the hook, lifting puts in place.

Claims (5)

1. the Complex Different Shape Multilayered net frame construction method of a kind of delamination modularization assembling process, it includes: is spelled using earth module Dress, high-altitude module hoisting, adopt high altitude bulk between module and module it is characterised in that Specific construction step is as follows:
Step one, first carries out plane junior unit on ground assembled;Require ground welding, ball accurate positioning, carried out using total powerstation Solder sphere put point location, in a horizontal plane, pipe fitting and ball connect between two parties, set packing ring in bulb docking port for ball, tube hub line Stay gap;
Step 2, carries out module after the completion of junior unit assembly assembled;
Step 3, module is welded: after the completion of assembly, welding sequence is welded to both sides according to from middle main chord, web member, from introversion External welding, same pipe fitting avoids two ends to weld simultaneously;
Step 4, module hoisting, each module sets five suspension centres, suspension centre of restricting based on, and main rope suspension centre passes through module center of gravity, separately Outer four suspension centres carry out the regulation of relative pose by chain block to module;
Step 5, module hoisting, module is lifted using crawler crane, is slowly off the hook when module falls directly over moulding bed, mould Block differs off the hook during 2mm with the moulding bed strong point and stops, and uses total powerstation three-dimensional localization, and module positions 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, its feature It is, described step one also includes the division of junior unit:
First, divide formal approximation between the junior unit being formed, processing length is approximate
Secondly, divide the gradual change that the junior unit being formed utilizes reticulated shell curved surface, accomplish that structure is substantially uniform, assembled complexity phase Closely, it is easy to reduce the difficulty of field technician and workmen's manipulation, improve quality,
Finally, junior unit will consider when dividing at utmost to reduce the consumption of auxiliary moulding bed.
3. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, its feature Be, in the middle of described step 3, module relative pose pass through module lower edge on not the same face three centre ofs sphere relatively high Difference is adjusted.
4. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, its feature It is, described step 2, in assembly, first marks assembled rigid unit ground line-transect, then sets up platform for lining, by the chord member made Girder unit goes up tire successively according to the position that unit combines, and is finally connected girder with time beam element.
5. the Complex Different Shape Multilayered net frame construction method of delamination modularization assembling process according to claim 1, its feature It is, in described step one, when junior unit divides, formulated unique erection sequence, numbered in order one by one during installation Install.
CN201310436434.1A 2013-09-24 2013-09-24 Complex irregular-shaped multi-layer net rack construction method based on layered modular assembling technology CN104453248B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104831939B (en) * 2015-05-22 2017-06-30 常州第一建筑集团有限公司 Bolt sphere solder sphere mixed node Long-span Cantilever spatial mesh structure construction method
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
CN105569358B (en) * 2015-12-15 2017-09-29 中国建筑第八工程局有限公司 The construction method on the special-shaped curved roof of large span multi-curvature

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH06180029A (en) * 1992-12-15 1994-06-28 Takenaka Komuten Co Ltd Lift-up construction method of single layer truss roof
CN101519913A (en) * 2008-12-29 2009-09-02 青建集团股份公司 Construction method for lifting whole steel structural roof with large span and complicated design
CN101988308A (en) * 2010-09-30 2011-03-23 中国华西企业有限公司 Non-support installation method of long-span spatial bolt ball steel reticulated shell dome
CN102102445A (en) * 2011-03-09 2011-06-22 中国建筑第八工程局有限公司 Partitioning lifting construction method for huge weld ball net rack
CN102179651A (en) * 2011-04-06 2011-09-14 中国建筑第八工程局有限公司 On-site plane trusses of extra-large welded ball net frame and method for splicing three-dimensional sections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06180029A (en) * 1992-12-15 1994-06-28 Takenaka Komuten Co Ltd Lift-up construction method of single layer truss roof
CN101519913A (en) * 2008-12-29 2009-09-02 青建集团股份公司 Construction method for lifting whole steel structural roof with large span and complicated design
CN101988308A (en) * 2010-09-30 2011-03-23 中国华西企业有限公司 Non-support installation method of long-span spatial bolt ball steel reticulated shell dome
CN102102445A (en) * 2011-03-09 2011-06-22 中国建筑第八工程局有限公司 Partitioning lifting construction method for huge weld ball net rack
CN102179651A (en) * 2011-04-06 2011-09-14 中国建筑第八工程局有限公司 On-site plane trusses of extra-large welded ball net frame and method for splicing three-dimensional sections

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