CN101280629A - Super sized iron piece high precision mounting construction method - Google Patents
Super sized iron piece high precision mounting construction method Download PDFInfo
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- CN101280629A CN101280629A CNA2008100160151A CN200810016015A CN101280629A CN 101280629 A CN101280629 A CN 101280629A CN A2008100160151 A CNA2008100160151 A CN A2008100160151A CN 200810016015 A CN200810016015 A CN 200810016015A CN 101280629 A CN101280629 A CN 101280629A
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- ironware
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- piecemeal
- iron piece
- steel plate
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Abstract
The invention discloses a highly precise construction method for ultra-large steel pieces, which is characterized in that the construction method comprises the steps as follows: partitioning steel piece and opening hole ---> fixing and installing anchor ---> hoisting steel piece plate in position ---> welding anchor pieces and each blocked steel piece plate ---> casting concrete; the construction method lowers construction cost, ensures the precision of installation and has good use effect.
Description
Technical field:
The present invention relates to a kind of high precision mounting construction method of super sized iron piece, be applicable to the installation of super sized iron piece in industry and the civilian construction, the engineering of the ironware installation accuracy being had relatively high expectations as roofing steel work built-in fitting, main equipment built-in fitting etc.
Background technology:
At present, super sized iron piece is used for the significant points of important structure or structure more in industry and the civilian construction, installation accuracies such as ironware levelness, axial location are had relatively high expectations, but because characteristics such as size is big, Heavy Weight, anchor is many, reinforcing bar is intensive, difficulty is all compared in ironware processing, installation, will increase considerably construction cost if consider the ironware integral hoisting, simultaneously ironware easy deformation in the hoisting process, difficulty is moved in ironware back in place, causes installation accuracy to guarantee.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art and a kind of construction cost that reduced is provided, guaranteed installation accuracy, the high precision mounting construction method of the super sized iron piece for building that result of use is good.
Purpose of the present invention can reach by following measure: the high precision mounting construction method of super sized iron piece, it is characterized in that its comprise the steps: ironware piecemeal, perforate → anchor fixed installation → ironware hoisting steel plate in place → welding anchor and each piecemeal ironware steel plate → concreting; Concrete steps are as follows:
(1) ironware piecemeal, perforate:
With super sized iron piece steel plate piecemeal, and open preformed hole on the ironware surface;
(2) anchor fixed installation:
Use is made one and the unidimensional template of super sized iron piece steel plate than steel sheet, the surface perforate is with the super sized iron piece unanimity, after treating that reinforcement installation is finished, be lifted on the scope of operation and locate temporary fixedly, various anchors are installed on successively in the preformed hole of this template and reinforce; Concreting is carried out in anchor bottom after the reinforcing of location; At last template is taken off;
(3) ironware hoisted in position:
Piecemeal ironware hoisting steel plate is located on the anchor, and anchor places in the preformed hole of ironware steel plate, treat that the ironware steel plate is all in place after, check and correction iron piece ax line position and planeness;
(4) anchor and each piecemeal ironware steel plate welding:
Earlier ironware steel plate part is connected with anchor spot welding before the welding, the polishing of groove place is clean, begins welding towards periphery from the ironware center, and the layering welding will often be proofreaded levelness and axial location in the welding process;
(5) concreting:
Build the concrete at ironware steel plate place, and vibration compacting.
In order further to realize purpose of the present invention, adopt cutting machine to cut out plate during described ironware piecemeal, stay the curve shape notch between each piecemeal.
In order further to realize purpose of the present invention, the curve shape notch between described each piecemeal is a zigzag.
In order further to realize purpose of the present invention, when described cutting machine was cut out the plate piecemeal, the cut place can not be retained in the stressed concentrated position of ironware, avoids reinforcing bar comparatively dense place under anchor and the ironware simultaneously, avoids the preformed hole on ironware surface.
In order further to realize purpose of the present invention, described preformed hole is welding anchor hole, concrete casting grout, steam vent.
In order further to realize purpose of the present invention, described concrete casting grout will be kept somewhere according to building direction, and the quantity of concrete casting grout increases at reinforcing bar, anchor comparatively dense place.
For further realization purpose of the present invention, described steam vent spacing 0.5-2m, the quantity of steam vent increases at the anchor place of the intensive place of anchor, semi-closed.
In order further to realize purpose of the present invention, ironware piecemeal place is welded to connect with 2～3 blocks of steel sheets temporarily in described anchor and each the piecemeal ironware steel plate welding step;
In order further to realize purpose of the present invention, described concreting order is passed to the less place of anchor from ironware anchor comparatively dense place, builds in the process and must not collide ironware and anchor; Layering is vibrated, and adopts secondary vibration technology.
The present invention can produce following good effect compared with the prior art: the present invention adopts piecemeal processing, the piecemeal lifting, the high-altitude welding, the method of placement layer by layer, that is: the ironware steel plate is reserved the anchor hole, ironware steel plate piecemeal, ironware anchor and ironware steel plate are installed respectively, elder generation's installing and locating ironware anchor, placement layer by layer is fixed in anchor in the concrete, be easy to control the ironware installation accuracy, one time lifting weight is little, the hoisting process light plate can be because of deadweight, wind load or lifting method produce distortion, and rationally made full use of crane gear, reduced construction cost, guaranteed installation accuracy, result of use is good.Maximum monolithic ironware can reach 18800 * 2000 * 50mm, contains anchor and weighs 18 tons, setting height(from bottom) 70m.
The specific embodiment:
Embodiment: the high precision mounting construction method of super sized iron piece, construction technology process: ironware steel plate cutting whole into sections → ironware steel plate perforate → ironware anchor fabrication and installation → concreting fixedly anchor → ironware hoisting steel plate in place → welding anchor and each piecemeal ironware steel plate → concreting; Concrete steps are as follows:
(1) ironware piecemeal, perforate:
The ironware cutting whole into sections:
With super sized iron piece steel plate piecemeal, adopt cutting machine to cut out plate, stay curve shape notches such as zigzag between each piecemeal, when cutting machine is cut out the plate piecemeal, the cut place can not be retained in the stressed concentrated position of ironware, avoid reinforcing bar comparatively dense place under anchor and the ironware simultaneously as far as possible, avoid other preformed holes such as irrigation hole on ironware surface.
The ironware perforate:
Welding anchor hole, concrete casting grout, steam vent, the hole of vibrating are kept somewhere in ironware behind piecemeal surface.The concrete casting grout will be kept somewhere according to building direction, and general reinforcing bar, anchor comparatively dense place will suitably increase, the hole but the irrigation hole double as vibrates, and about steam vent spacing 0.5-2m, the anchor place of the intensive place of anchor, semi-closed will suitably increase.
The order of ironware steel plate cutting whole into sections and ironware perforate is fixing, can the perforate again of first piecemeal, also can first perforate piecemeal again.
(2) anchor fixed installation:
Anchor is installed:
Because size is also bigger behind the ironware steel plate piecemeal, after finishing, hoisting steel plate, guarantee installation accuracy than reasons such as difficulty move, just need elder generation's installation anchor.
Use is made one and the unidimensional template of super sized iron piece steel plate than steel sheet, the surface perforate is with the super sized iron piece unanimity, after treating that reinforcement installation is finished, be lifted on the scope of operation and locate temporary fixedly, various anchors are installed on successively in the welding anchor hole of this template and reinforce.
Concreting is anchor fixedly:
Anchor after the reinforcing of location is carried out concreting, and promptly concreting is to the certain altitude of anchor.
Then template is taken off.
(3) ironware hoisted in position:
Piecemeal ironware steel plate is carried out suspension centre checking computations back suspension ring and Current Collector Sleave are installed, the ironware hoisting steel plate is located on the anchor, anchor places in the welding anchor hole of ironware steel plate.After treating that the ironware steel plate is all in place, check and correction iron piece ax line position and planeness.
(4) anchor and each piecemeal ironware steel plate welding:
Earlier ironware steel plate part is connected with anchor spot welding before the welding, ironware piecemeal place is welded to connect with 2～3 blocks of steel sheets temporarily, and the polishing of groove place is clean, begins welding towards periphery from the ironware center, and levelness and axial location are regularly proofreaded in the layering welding in the welding process.
(5) concreting:
Concrete casting grout by the ironware steel plate carries out concreting, and the concreting order is passed to the less place of anchor from ironware anchor comparatively dense place, guarantees that concreting is closely knit under the ironware, builds in the process and must not collide ironware and anchor.Layering is vibrated, and adopts secondary vibration technology, combines closely to improve between concrete density and ironware and concrete.
Case history:
20,000 tons of fixed gantry crane concrete foundations of Fushi engineering is come in Yantai, the J-4 top board is of a size of 30.6 * 8.6 * 4m, concrete strength C50, the top board embedded iron parts weighs 112 tons altogether, and top board M-D ironware size 18800 * 2000 * 50mm contains anchor and weighs 18 tons, anchor is mainly 400 * 400 * 40 * 40mm welded H section steel (length 2.8m), auxiliary anchor is L160 * 16 angle steel, HRB400 reinforcing bar, setting height(from bottom) 70m, installation requirement levelness ± 2mm, misalignment of axe ± 5mm.The M-D ironware divides three liftings, and length is respectively 6200mm, 6000mm, 6600mm, and anchor hole, irrigation hole, steam vent are reserved in the ironware surface, and each preformed hole is the half way up the mountain mouth, and each piecemeal place is full groove.Adopt numerical control plasma cutting machine processing steel plate, 6t dead man lifting ironware, total powerstation location ironware, CO2 gas shield welding welding ironware, concrete is built at twice and is finished.Compliance test result ironware installation accuracy is good, and ten thousand tons of crane hoisting tests are normal.
Claims (9)
1, the high precision mounting construction method of super sized iron piece, it is characterized in that its comprise the steps: ironware piecemeal, perforate → anchor fixed installation → ironware hoisting steel plate in place → welding anchor and each piecemeal ironware steel plate → concreting; Concrete steps are as follows:
(1) ironware piecemeal, perforate:
With super sized iron piece steel plate piecemeal, and open preformed hole on the ironware surface;
(2) anchor fixed installation:
Use is made one and the unidimensional template of super sized iron piece steel plate than steel sheet, the surface perforate is with the super sized iron piece unanimity, after treating that reinforcement installation is finished, be lifted on the scope of operation and locate temporary fixedly, various anchors are installed on successively in the preformed hole of this template and reinforce; Concreting is carried out in anchor bottom after the reinforcing of location; At last template is taken off;
(3) ironware hoisted in position:
Piecemeal ironware hoisting steel plate is located on the anchor, and anchor places in the preformed hole of ironware steel plate, treat that the ironware steel plate is all in place after, check and correction iron piece ax line position and planeness;
(4) anchor and each piecemeal ironware steel plate welding:
Earlier ironware steel plate part is connected with anchor spot welding before the welding, the polishing of groove place is clean, begins welding towards periphery from the ironware center, and the layering welding will often be proofreaded levelness and axial location in the welding process;
(5) concreting:
Build the concrete at ironware steel plate place, and vibration compacting.
2, the high precision mounting construction method of super sized iron piece according to claim 1 adopts cutting machine to cut out plate when it is characterized in that described ironware piecemeal, stay the curve shape notch between each piecemeal.
3, the high precision mounting construction method of super sized iron piece according to claim 2 is characterized in that the curve shape notch between described each piecemeal is a zigzag.
4, the high precision mounting construction method of super sized iron piece according to claim 1 and 2, when it is characterized in that described cutting machine is cut out the plate piecemeal, the cut place can not be retained in the stressed concentrated position of ironware, avoids reinforcing bar comparatively dense place under anchor and the ironware simultaneously, avoids the preformed hole on ironware surface.
5, the high precision mounting construction method of super sized iron piece according to claim 1 is characterized in that described preformed hole is welding anchor hole, concrete casting grout, steam vent.
6, the high precision mounting construction method of super sized iron piece according to claim 5 is characterized in that described concrete casting grout will be according to building the direction indwelling, and the quantity of concrete casting grout increases at reinforcing bar, anchor comparatively dense place.
7, the high precision mounting construction method of super sized iron piece according to claim 5 is characterized in that described steam vent spacing 0.5-2m, and the quantity of steam vent increases at the anchor place of the intensive place of anchor, semi-closed.
8, the high precision mounting construction method of super sized iron piece according to claim 1 is characterized in that ironware piecemeal place is welded to connect with 2～3 blocks of steel sheets temporarily in described anchor and each the piecemeal ironware steel plate welding step;
9, the high precision mounting construction method of super sized iron piece according to claim 1 is characterized in that described concreting order passes to the less place of anchor from ironware anchor comparatively dense place, builds in the process and must not collide ironware and anchor; Layering is vibrated, and adopts secondary vibration technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2008100160151A CN100510296C (en) | 2008-05-08 | 2008-05-08 | High precision mounting construction method of super sized iron piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2008100160151A CN100510296C (en) | 2008-05-08 | 2008-05-08 | High precision mounting construction method of super sized iron piece |
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| CN101280629A true CN101280629A (en) | 2008-10-08 |
| CN100510296C CN100510296C (en) | 2009-07-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561692A (en) * | 2010-12-22 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method and template for pouring concrete beam or column with embedded part at top |
| CN102704693A (en) * | 2012-06-06 | 2012-10-03 | 绍兴县现代建筑工程有限公司 | Construction method of ultra-high layer steel structure in low-temperature environment |
| CN103469812A (en) * | 2013-09-10 | 2013-12-25 | 东风设计研究院有限公司 | Stamping device civil engineering installation level control device and installing method |
| CN114809653A (en) * | 2022-05-22 | 2022-07-29 | 山西一建集团有限公司 | Precise positioning, mounting and constructing process for large-diameter conical embedded part |
-
2008
- 2008-05-08 CN CNB2008100160151A patent/CN100510296C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561692A (en) * | 2010-12-22 | 2012-07-11 | 贵阳铝镁设计研究院有限公司 | Method and template for pouring concrete beam or column with embedded part at top |
| CN102704693A (en) * | 2012-06-06 | 2012-10-03 | 绍兴县现代建筑工程有限公司 | Construction method of ultra-high layer steel structure in low-temperature environment |
| CN103469812A (en) * | 2013-09-10 | 2013-12-25 | 东风设计研究院有限公司 | Stamping device civil engineering installation level control device and installing method |
| CN114809653A (en) * | 2022-05-22 | 2022-07-29 | 山西一建集团有限公司 | Precise positioning, mounting and constructing process for large-diameter conical embedded part |
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| Publication number | Publication date |
|---|---|
| CN100510296C (en) | 2009-07-08 |
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