CN100545367C - The net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node - Google Patents

The net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node Download PDF

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Publication number
CN100545367C
CN100545367C CNB2007100548872A CN200710054887A CN100545367C CN 100545367 C CN100545367 C CN 100545367C CN B2007100548872 A CNB2007100548872 A CN B2007100548872A CN 200710054887 A CN200710054887 A CN 200710054887A CN 100545367 C CN100545367 C CN 100545367C
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China
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net
shell
ball
grid
endless belt
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CNB2007100548872A
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Chinese (zh)
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CN101100876A (en
Inventor
焦安亮
翟国政
张银珠
盛文考
黄延铮
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中国建筑第七工程局有限公司
中建七局第一建筑有限公司
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Priority to CNB2007100548872A priority Critical patent/CN100545367C/en
Publication of CN101100876A publication Critical patent/CN101100876A/en
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Publication of CN100545367C publication Critical patent/CN100545367C/en

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Abstract

The present invention relates to a kind of at plane grid, sphere net case, the net-shell net-rack overhanging high altitude bulk construction method of the bolted spherical node of using in the net-shell net-rack construction of cylindrical latticed shell and all the other similar bolted spherical nodes, in two endless belt of net shell periphery, set up steel pipe scaffold, thereon with two endless belt online of method assembling in bulk shell, adopt the method construction in bulk of encorbelmenting since the 3rd endless belt, push up closely linked propelling by outer hoop shell, each endless belt divides grid of two groups of personnel to connect a grid up time direction propelling, each grid clicks string ball node and two rod members of lower edge and one one ball of three web member groups, five bar smallclothes again, winching to the high-altitude is connected with the intact ball node of periphery, again wind up a ball and two upper chords and a web member are formed a ball three bar smallclothes, winch to the high-altitude assembling, next net shell grid is installed, not only less investment after this grid is qualified again, cost is low, and quality is good, and speed is fast, and the advantage of existing method in bulk has the advantage of the method for encorbelmenting again.

Description

The net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node

Technical field

The present invention relates to a kind of plane grid in engineering construction, sphere net case, the net-shell net-rack overhanging high altitude bulk construction method of the bolted spherical node that uses in the net shell construction of cylindrical latticed shell and all the other similar bolted spherical nodes.

Background technology

In existing steel pipe arch of vault structure design, for example: the plane projection diameter is 98m, radius of a ball 56.4m, rise 28.5m, rise in certain engineering for 34.7m, needing steel using amount is 360t, needs cost of materials and steel pipe manufacturing installation fee (bend pipe, intersection making, assembling, lifting etc.), 11700 yuan of expenses per ton, not only expense height but also difficulty of construction are big.Aspect constructure scheme, there are three kinds at present, the one, all adopt steel pipe scaffold to set up full hall scaffold in whole racks plane, thereon with method assembling net shell in bulk, palpus pin hand steel pipe 955t, and also recruitment is many, long in time limit; Another kind method is to set up full hall scaffold on three endless belt of periphery, with method in bulk the net shell is installed thereon, and remainder is assembled into integral body on ground, with the unipods pole it is winched to the high-altitude again and connects with former peripheral net shell.This way needs equipment many, the peopleware height; The third way is assembled at high-altitude overhanging with the smallest assembled rigid unit method exactly, still must cooperate with crane and gin pole.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and a kind of not only less investment of taking smallest assembled rigid unit high altitude bulk construction is provided, cost is low, and quality is good, the net-shell net-rack overhanging high altitude bulk construction method of fireballing bolted spherical node, the advantage of existing method in bulk has the advantage of the method for encorbelmenting again.

The present invention seeks to realize like this: concrete steps are as follows:

At first, in two endless belt of net shell (or being called rack) periphery, set up steel pipe scaffold, thereon with the net shell on two endless belt of method assembling in bulk,

Then, adopt the method construction in bulk of encorbelmenting since the 3rd endless belt, push up closely linked propelling by outer hoop shell, each endless belt is that grid of two groups of personnel of branch connects a grid up time direction propelling, each grid clicks string ball node and two rod members of lower edge and one one ball of three web member groups, five bar smallclothes again, winches to the high-altitude and is connected with the ball node that periphery has finished, again wind up a ball and two upper chords and a web member is formed a ball three bar smallclothes, winch to the high-altitude assembling with crane

Secondly, the grid of next net shell is installed after this grid is qualified by inspection again.

Before the net shell is installed to the absolute altitude of the embedded part that encircles the steel concrete top surface of the beam down with axis is measured and unwrapping wire.

Ball and rod member etc. are reviewed after marching into the arena all at produce in factory, and its material, specification, size, numbering adhere to specification.

Set up the endless belt steel pipe scaffold of two internodes in outer ring, require the scaffold supporting capacity greater than 2KN/m2, the calculating of vertical rod, cross bar and structure meet the current specifications requirement.

Net shell in bulk on two endless belt scaffolds setting up forms open shell, the requirement of the bearing capacity that the endless belt method of encorbelmenting is constructed after can bearing.

Construct with the 3rd the endless belt method that begins to encorbelment, connecing an endless belt at endless belt radially advances to the shell pushing tow, connecing a grid at grid of hoop advances, and each grid is assembled smallclothes respectively, hang high altitude bulk with crane, in a grid, be node with a lower edge ball E at first on the ground, with lower edge hoop EF, lower edge is EG and three web member EB radially, EC, ED connects to a ball five bar smallclothes, winch to the relevant position with crane, at B, F, C, G, five workmans on the D ball position are with the other end and corresponding B of five rod members, F, C, G, the butt joint of D ball node also tightens bolt, finishes first stage work, and another part is a node with the A ball, with the hoop bar AB that winds up, the radial bars of winding up AD, web member AE links to each other, form a ball three bar smallclothes, winch to the relevant position with crane, same B, E, the binding of D ball also tightens bolt, the assembling of this ABCD grid is finished, and detects and carries out next grid after qualified.

The present invention has the following advantages:

1, adopt the method job practices in bulk of encorbelmenting, the advantage of the existing method in bulk of this method also has the advantage of the method for encorbelmenting,

2, structural performance is good, cost is low, reduction of erection time, difficulty of construction are little.

3, the method for the encorbelmenting construction in bulk of Cai Yonging does not only need upright gin pole again, and only needs a spot of steel pipe scaffold, need not set up platform on the shell top when closing up, and the assembling of smallclothes also is very suitable, and both convenient construction also can be ensured the quality of products.

4, construction costs reduces more than the 30%--40% than conventional construction method.For example, changing former scheme into plane projection is the double-deck sphere net case of 98m bolted spherical node, and total steel using amount can drop to 250t, than adopting steel pipe arch of vault structure to economize on the use of funds 2,300,000 yuan.

Description of drawings

Fig. 1 is a grid drawing of the present invention.

The specific embodiment

In conjunction with the accompanying drawings, concrete job practices of the present invention is as follows:

At first, at the net shell or be called in two endless belt of rack periphery and set up steel pipe scaffold, assemble net shell on two endless belt with method in bulk thereon,

Then; Adopt the method construction in bulk of encorbelmenting since the 3rd endless belt; Push up closely linked propelling by outer hoop shell; Each endless belt is that grid of two groups of personnel of branch connects a grid up time direction propelling; Each grid clicks again string ball node and two rod members of lower edge and one ball of three web member groups five bar smallclothes; Winching to the high-altitude by QY25 (A) truck crane is connected with peripheral complete ball node; Again wind up a ball and two top booms and a web member are formed a ball three bar smallclothes; Winch to assembly with crane

Secondly, the grid of next net shell is installed after this grid is qualified by inspection again.

1, before the net shell is installed to the absolute altitude of the embedded part that encircles the steel concrete top surface of the beam down with axis is measured and unwrapping wire.

2, ball and rod member etc. are reviewed after marching into the arena all at produce in factory, and its material, specification, size, numbering adhere to specification.

3, set up the endless belt steel pipe scaffold of two internodes in outer ring, require the scaffold supporting capacity greater than 2KN/m2, the calculating of vertical rod, cross bar and structure meet the current specifications requirement.

4, net shell in bulk on two endless belt scaffolds setting up forms open shell, the requirement of the bearing capacity that the endless belt method of encorbelmenting is constructed after can bearing.

5, with begin the to encorbelment method construction of the 3rd endless belt, connect an endless belt at endless belt radially and advance to the shell pushing tow, connect a grid at grid of hoop and advance, and each grid is assembled smallclothes respectively, hangs high altitude bulk with crane.

In a grid, be node with a lower edge ball E at first on the ground, with lower edge hoop EF, lower edge is EG and three web member EB radially, EC, ED connects to a ball five bar smallclothes, winch to the relevant position with crane, at B, F, C, G, five workmans on the D ball position are with the other end and corresponding B of five rod members, F, C, G, the butt joint of D ball node also tightens bolt, finish first stage work, another part is a node with the A ball, with the hoop bar AB that winds up, the radial bars of winding up AD, web member AE links to each other, form a ball three bar smallclothes, winch to the relevant position with crane, same B, E, the D ball links and also to tighten bolt, and this ABCD grid assembling is finished, and detects and carries out next grid after qualified.

In sum, preferred forms is as follows: set up full hall scaffold in outer two endless belt of bolted spherical node net shell, carry out the assembling of net shell thereon with method in bulk.Form a stable open shell, it can bear progressively the inwardly deadweight and the working load of ring assembling net shell, and it is high more to push up its open net shell bearing capacity to shell more, till the shell top forms the sphere net case of sealing.What pay special attention to here is, the little composite member in each grid can form a stable system after must guaranteeing to winch to the high-altitude assembling, and hanging stick that can not the appearance activity could guarantee the personal security of work high above the ground like this.And the duration is short, and expense is low, the good economic and social benefit of obtaining.

Claims (6)

1, a kind of net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node is characterized in that:
(1), in two endless belt of net shell or rack periphery, set up steel pipe scaffold, assemble net shell on two endless belt with method in bulk thereon,
(2), adopt the construction of overhanging high altitude bulk method since the 3rd endless belt, push up closely linked propelling by outer hoop shell, each endless belt is that grid of two groups of personnel of branch connects a grid clockwise direction propelling, each grid clicks string ball node and two rod members of lower edge and one one ball of three web member groups, five bar smallclothes again, winching to the high-altitude is connected with the ball node that periphery has finished, again wind up a ball and two upper chords and a web member are formed a ball three bar smallclothes, winch to the high-altitude assembling with crane
(3), this grid is installed the grid of next net shell after qualified by inspection again.
2, the net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node according to claim 1 is characterized in that: before net shell or rack are installed to the absolute altitude of the embedded part that encircles the steel concrete top surface of the beam down with axis is measured and unwrapping wire.
3, the net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node according to claim 1 is characterized in that: ball and rod member etc. are reviewed after marching into the arena all at produce in factory, and its material, specification, size, numbering adhere to specification.
4, the net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node according to claim 1, it is characterized in that: the endless belt steel pipe scaffold of setting up two internodes in outer ring, require the scaffold supporting capacity greater than 2KN/m2, the calculating of vertical rod, cross bar and structure meet the current specifications requirement.
5, the net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node according to claim 1, it is characterized in that: net shell in bulk on two endless belt scaffolds setting up, form open shell, the requirement of the bearing capacity that the endless belt method of encorbelmenting is constructed after can bearing.
6, the net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node according to claim 1, it is characterized in that: construct with the 3rd the endless belt method that begins to encorbelment, connecing an endless belt at endless belt radially advances to the shell pushing tow, connecing a grid at grid of hoop advances, and each grid is assembled smallclothes respectively, hang high altitude bulk with crane, in a grid, be node with a lower edge ball E at first on the ground, with lower edge hoop EF, lower edge is EG and three web member EB radially, EC, ED connects to a ball five bar smallclothes, winch to the relevant position with crane, at B, F, C, G, five workmans on the D ball position are with the other end and corresponding B of five rod members, F, C, G, the butt joint of D ball node also tightens bolt, finish first stage work, another part is a node with the A ball, with the hoop bar AB that winds up, the radial bars of winding up AD, web member AE links to each other, form a ball three bar smallclothes, winch to the relevant position with crane, same B, E, the binding of D ball also tightens bolt, the assembling of this ABCD grid is finished, and detects and carries out next grid after qualified.
CNB2007100548872A 2007-08-02 2007-08-02 The net-shell net-rack overhanging high altitude bulk construction method of bolted spherical node CN100545367C (en)

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CN102003078A (en) * 2010-12-24 2011-04-06 青建集团股份公司 Assembling method of net rack
CN102345393B (en) * 2011-07-14 2014-02-12 中建八局第四建设有限公司 High-altitude bulk process of bolt ball net frame
CN102425326B (en) * 2011-09-14 2012-11-21 徐州中煤百甲重钢科技有限公司 Installation construction process of bolt net rack cylindrical shell storage bin
CN102619281B (en) * 2012-03-23 2014-07-23 浙江大学 Spherical reticulated shell composed of connected quadrilateral-planed six-rod tetrahedron units
CN102953558A (en) * 2012-11-14 2013-03-06 中冶天工集团有限公司 Splitting method of basic unit of honeycomb-shaped triangular conical mesh shell structure
CN103343610B (en) * 2013-07-25 2015-08-19 中冶天工集团有限公司 Based on irregularly distributed load ground full hall scaffold erection method
CN105178609B (en) * 2015-09-06 2017-07-28 中建二局第三建筑工程有限公司 Steel structure net rack high altitude bulk construction method
CN105386604B (en) * 2015-10-09 2018-03-16 多维联合集团有限公司 A kind of high-altitude wire frame installation method
CN105442854A (en) * 2015-12-15 2016-03-30 安徽伟宏钢结构集团股份有限公司 Construction technology for large-span reticulated shell steel structure roof
CN106592760B (en) * 2016-12-29 2019-03-01 青建集团股份公司 Bolt-ball net frame high-altitude, which dissipates, spells construction method

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