CN104727446A - Construction method of large aluminum alloy formwork at settlement joint - Google Patents
Construction method of large aluminum alloy formwork at settlement joint Download PDFInfo
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- CN104727446A CN104727446A CN201310709415.1A CN201310709415A CN104727446A CN 104727446 A CN104727446 A CN 104727446A CN 201310709415 A CN201310709415 A CN 201310709415A CN 104727446 A CN104727446 A CN 104727446A
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Abstract
The invention discloses a construction method of a large aluminum alloy formwork at a settlement joint. According to the arrangement, in a high-rise building with expansion joints or seismic joints, the aluminum alloy formwork is matched with special bolts to perform effect construction on the expansion joints or the seismic joints, to be specific, the aluminum alloy formwork, compared with the steel plate formwork, is lower in density, larger in production area and equal in performance. The aluminum alloy formwork has the advantages that dead weight is light, bearing capacity is high, construction is easy, maintenance cost is low, a formwork after assembly is double than the steel plate formwork in area, construction and external wall increasing requirements are met, construction efficiency is high, concrete surface quality is excellent, turnover frequency is high and the like; through the aluminum formwork design and the bolt design, the high-rise building construction with the expansion joints or the seismic joints is facilitated, thus formwork turnover frequency and construction efficiency are greatly increased, and material and construction cost is decreased.
Description
Technical field
The present invention
relate to one and be used in settlement joint place large formwork construction method in aluminum alloy formwork system, belong to technical field of building construction.
Background technology
because shrinkage joint is most between two buildings, for highrise building, shrinkage joint can regard the gap of two adjacent architectural exterior walls as, when exterior wall length is larger, limit by environment, people can not carry out pointwise reinforcing to template, exterior wall outboard template is constructed and has great difficulty, and the quality of construction is produced a very large impact with safety, thus certain delay and infringement are caused to progress and cost.In work progress, often run into shrinkage joint, aseismatic joint etc., the template construction individual nerve-wracking problem often at this position, frame column and shear wall with short piers also better.Run into long wall just more difficult.Template is often removed to get off.To jump the queue between seam during a lot of wooden model construction now benzene plate.During concreting, can produce huge lateral pressure, with highly different, often every square meter can produce the lateral pressure of 40-60KN, make the internal stress created between component beyond design, and two surface members is tightly adjacent, are also unfavorable for construction quality.Therefore prior art is very undesirable.
Summary of the invention
the object of the present invention is to provide one to be used in settlement joint place large formwork construction method in aluminum alloy formwork system, its construction technology is simple, and can effectively make up in prior art can not very well in the construction at shrinkage joint place, to overcome the deficiencies in the prior art.
content of the present invention:
one is used in settlement joint place large formwork construction method in aluminum alloy formwork system, in the highrise building being provided with shrinkage joint or aseismatic joint, adopt density ratio steel plate Density Density little, make area ratio block out mold large, functional performance differs the bolt of aluminum alloy mould plate and the special facture do not beaten with the use of construction with block out mold; Concrete construction method is as follows:
one, when shrinkage joint or aseismatic joint spacing are greater than 300mm, the production method of aluminum alloy mould plate is consistent with prior art steel form production method, wherein aluminium shuttering panel making method is be all that level and smooth standard size aluminium alloys panel beating assembles by two sides, back of the body rib is arranged on rear side of aluminum alloy mould plate, aluminum alloy mould plate is placed on both sides, shrinkage joint and corresponding wall, constructs by general model sheetinstallat construction technology simultaneously;
two, when shrinkage joint or aseismatic joint spacing are when being less than 150mm ~ 300mm, after improving, the production method of aluminum alloy mould plate is then all that level and smooth standard size aluminium alloys panel beating assembles by two sides, each standard size al alloy joint is connected by steel plate surrounding full weld, no longer install by rib on rear side of it, for height at below 3000mm wall column aluminum alloy mould plate, thick and the welding procedure of the length and width of jigsaw can be determined by calculating, whether can meet the requirements by calculating for the wall column being highly greater than 3000mm, select whether placement layer by layer, reduce the pressure of bottom template, control the risk of mould of rising well, it is thickness of slab+steel jigsaw thickness+bolt thickness that such shrinkage joint inner formword reinforces width requirement, 120mm ~ 180mm can be saved altogether in the one-sided both sides, space can saving nearly 60mm ~ 90mm, the joined together bolt one used is welded with the bolt cylinder of pad for one end, this bolt and can simultaneously the constructing with the use of by prior art operating process of aluminum alloy mould plate after improving.
three, when shrinkage joint or aseismatic joint spacing are when being less than 150mm, aluminum alloy mould plate after aluminum alloy mould plate adopts and improves, if must construct in the shrinkage joint of highrise building or aseismatic joint both sides simultaneously, then adopt the method for filling benzene plate, if do not need, overall moldings formed therefrom bolt then can be adopted to coordinate and to improve rear aluminum alloy mould plate use, this overall moldings formed therefrom bolt is the bolt cylinder that two ends are all provided with pad, and total length is no more than 80mm, after first aluminum alloy mould plate being installed during Specific construction, screw rod passes through shrinkage joint and the aluminum alloy mould plate of both sides, through shrinkage joint, overall moldings formed therefrom bolt sleeve is on screw rod and between the aluminum alloy mould plate being placed on both sides, shrinkage joint, when building complete on the left of shrinkage joint and reaching concrete side and remove after intensity, unclamp screw rod on the left of shrinkage joint, directly pull on the right side of shrinkage joint, then can reinforce on the right side of shrinkage joint at once.
owing to have employed technique scheme, with prior art ratio, be suitable in the high-building construction of shrinkage joint or aseismatic joint in the present invention, all aluminium alloy template in invention is conducive to environmental protection, save timber, the protection woods, can repeatedly recycle, meet national energy-saving and reduce discharging policy, and aluminum dipping form has deadweight gently, bearing capacity is high, construction easily, maintenance cost is low, Construction Plan can be worked out according to the hoisting power of drawing and tower crane, and the template that can assemble compared with the large twice of punching block area, the requirement efficiency of construction meeting construction and exterior wall lifting is high, concrete surface quality is good, the features such as the number of turnover is many, secondly aluminum dipping form design and and bolt design, the high-building construction of shrinkage joint or aseismatic joint can be successfully managed, to greatly improve form cycling rate and efficiency of construction, reduce material cost and construction cost, job site is only by a set of template main system, support at the bottom of three cover floors, support at the bottom of four cover beams, the speed of application that just can realize 3-4 days one decks is supported with at the bottom of six cover cantilevered structures, in the present invention, aluminum alloy mould plate can realize factorial construction again, in the engineering preparation stage, aluminum dipping form producer according to working drawing carried out trying in Deepen Design and factory assembled after transport building site to, thus substantially increase speed of application and precision, aluminum alloy mould plate long service life, reusable 300 times of aluminum dipping form, and its recovery value is high, therefore aluminum alloy pattern plate also has its objective using value in cost accounting.
accompanying drawing illustrates:
accompanying drawing 1 is that in the present invention, expansion joint width is greater than 300mm construction and installation schematic diagram;
accompanying drawing 2 is aluminum alloy mould plate schematic diagram when expansion joint width in the present invention is greater than 300mm;
accompanying drawing 3 is the aluminum alloy mould plate front view improved when expansion joint width is less than 300mm in the present invention;
accompanying drawing 4 is the aluminum alloy mould plate lateral view improved when expansion joint width is less than 300mm in the present invention;
accompanying drawing 5 is bolt one schematic diagram in the present invention;
accompanying drawing 6 is overall moldings formed therefrom bolt schematic diagram in the present invention;
accompanying drawing 7 is for overall moldings formed therefrom bolt schematic diagram in the present invention and improve rear aluminum alloy mould plate scheme of installation.
being labeled as in accompanying drawing: 1-common aluminum alloy template, 2-carries on the back rib, 3-bolt one, 3.1-pad, 3.2-bolt cylinder, 4-screw rod, 5-shrinkage joint side wall, 6-wall side, 7-aluminium alloys panel beating, aluminum alloy mould plate after 8-improves, 9-steel plate, 10-plain bolt, the overall moldings formed therefrom bolt of 11-, 11.1-pad, 11.2-bolt cylinder, 12-shrinkage joint.
detailed description of the invention:
below in conjunction with accompanying drawing, the present invention's situation construction in Dong Jianyou shrinkage joint, different building in same highrise building is described in further detail, but not as any limitation of the invention.
one is used in settlement joint place large formwork construction method in aluminum alloy formwork system, in the highrise building being provided with shrinkage joint or aseismatic joint, adopt density ratio steel plate Density Density little, make area ratio block out mold large, functional performance differs the bolt of aluminum alloy mould plate and the special facture do not beaten with the use of construction with block out mold; Concrete construction method is as follows:
one, when shrinkage joint or aseismatic joint spacing are greater than 300mm, the production method of aluminum alloy mould plate is consistent with prior art steel form production method, wherein aluminium shuttering panel making method is be all that level and smooth standard size aluminium alloys panel beating assembles by two sides, back of the body rib is arranged on rear side of aluminum alloy mould plate, aluminum alloy mould plate is placed on both sides, shrinkage joint and corresponding wall, constructs by general model sheetinstallat construction technology simultaneously;
two, when shrinkage joint or aseismatic joint spacing are when being less than 150mm ~ 300mm, after improving, the production method of aluminum alloy mould plate is then all that level and smooth standard size aluminium alloys panel beating assembles by two sides, each standard size al alloy joint is connected by steel plate surrounding full weld, no longer install by rib on rear side of it, for height at below 3000mm wall column aluminum alloy mould plate, thick and the welding procedure of the length and width of jigsaw can be determined by calculating, whether can meet the requirements by calculating for the wall column being highly greater than 3000mm, select whether placement layer by layer, reduce the pressure of bottom template, control the risk of mould of rising well, it is thickness of slab+steel jigsaw thickness+bolt thickness that such shrinkage joint inner formword reinforces width requirement, 120mm ~ 180mm can be saved altogether in the one-sided both sides, space can saving nearly 60mm ~ 90mm, the joined together bolt one used is welded with the bolt cylinder of pad for one end, this bolt and can simultaneously the constructing with the use of by prior art operating process of aluminum alloy mould plate after improving.
three, when shrinkage joint or aseismatic joint spacing are when being less than 150mm, aluminum alloy mould plate after aluminum alloy mould plate adopts and improves, if must construct in the shrinkage joint of highrise building or aseismatic joint both sides simultaneously, then adopt the method for filling benzene plate, if do not need, overall moldings formed therefrom bolt then can be adopted to coordinate and to improve rear aluminum alloy mould plate use, this overall moldings formed therefrom bolt is the bolt cylinder that two ends are all provided with pad, and total length is no more than 80mm, after first aluminum alloy mould plate being installed during Specific construction, screw rod passes through shrinkage joint and the aluminum alloy mould plate of both sides, through shrinkage joint, overall moldings formed therefrom bolt sleeve is on screw rod and between the aluminum alloy mould plate being placed on both sides, shrinkage joint, when building complete on the left of shrinkage joint and reaching concrete side and remove after intensity, unclamp screw rod on the left of shrinkage joint, directly pull on the right side of shrinkage joint, then can reinforce on the right side of shrinkage joint at once.
specific construction process:
1, the following maximum spacing for reinforced concrete structure shrinkage joint is described:
note: 1), the shrinkage joint spacing in cast in place and precast construction house should take by the numerical value of Cast-in-situs type in table;
2), the shrinkage joint spacing in frame shear wall structure or Frame-Shear wall house can get according to the concrete deployment scenarios of structure the numerical value shown between middle frame structure and shear wall structure;
3), when roofing is without insulation or provision for thermal insulation, the shrinkage joint spacing of frame construction, shear wall structure should be taken by the numerical value on outdoor hurdle in table;
4), cast-in-placely to cornice, the shrinkage joint spacing of the exposed structure such as canopy should not be greater than 12m
5), should suitably reduce the expansion joint in table on following situations:
6), post high (from basic end face) counts the bent structure lower than 8m;
7), roofing is without insulation or the bent structure of provision for thermal insulation;
8) dry area, summer hot and the frequent structure in area of heavy rain or the structure under being often in high temperature action, is positioned at;
9) shear wall structure of sliding formwork class construction technology, is adopted;
10), comparatively large, the doors structure of Material shrinkage is longer etc. because construction exposes the time.
11), to following situations as be well grounded and on responsible measures table in expansion joint can suitably increase:
12), concreting adopts ater-casting section construction;
13), special prestressing measure is adopted;
14) measure that can reduce concrete temperature change or shrink, is taked;
15), when increasing shrinkage joint spacing, still should consider that variations in temperature and concrete shrinkage are on the impact of structure;
16), have framed bent, the frame construction of single footing, when arranging shrinkage joint, its twin columns basis can not disconnect;
2, technics institution foundation.
" loading code for design of building structures " (GB 50009-2001);
" concrete structure engineering construction quality accident specification " (GB50204-2002);
" building construction formwork technical specification of security " (JGJ162-2008);
" unified standard for constructional quality " (GB 50300-2001);
" loading code for design of building structures " (GB 5009-2001);
" construction safety check criteria " (JGJ59-2011);
" building operations handbook ";
" high-building construction handbook ";
" combined aluminium mould plate technique specification " (JGJ 214-89);
3. construction technology process and key points for operation are commonly used in shrinkage joint
3.1 surveying setting-out
the good wall column line of bullet and wall column control line on floor, hole line, wherein wall column control line is apart from wall sideline 300mm, can check template whether off normal and Founder; Indulge muscle subscript good floor absolute altitude control point at post, absolute altitude control point is floor+0.50m, and corner and the corner of wall column are all arranged, to check floor face absolute altitude.
3.2 wall column reinforcing bars and water power pre-buried
wall column reinforcing bar and pre-buried water power chamber are installed, spool, reserved opening etc., after handle subsurface work acceptance formality.
3.3 aluminum alloy mould plates are installed
before wall column aluminum dipping form is installed, check whether wall column position floor absolute altitude meets the requirements, and what exceed cuts, timber wedge on low pad, controls within 5mm as far as possible according to absolute altitude control point.
the vertical muscle of wall column root welding spacer bars, having prevented the positioning when reinforcing of post aluminum dipping form; In wall column, set the thick cement inner bracing strip of same wall column or reinforcing bar inner bracing strip, ensure the sectional dimension of aluminum dipping form wall column after reinforcing.
before wall column aluminum dipping form is assembled, must make an overall screening plate face, brushing release agent.Release agent brushing wants thin and even, must not leak brush, during brushing, note surrounding environment, prevent from being scattered on building, facility and personal clothing, more must not brush on reinforcing bar.
by examination assembled drawing number assembled good wall column aluminum dipping form successively, before closing post aluminum dipping form, need on wall column mould fastening screw overcoat pvc pipe in advance, to ensure that sleeve pipe is wanted accurately with wall two cheek board face contact position, can Screw arbor with nut at both-ends be regained after pouring into a mould simultaneously.
in order to remove conveniently, when wall column mould is connected with interior angle mould, the head of pin should be inner at interior angle mould as much as possible.Chock between wall column aluminum dipping form on connecting pin will be inserted from top to bottom, in order to avoid come off when concreting.Wall column aluminum dipping form end and corner connect should be with bolts, with pin wedge connects easy when concreting chock to come off the mould that rises.
for preventing wall column aluminum dipping form end opening running pulp, pouring concrete utilizes cement mortar to carry out shutoff the previous day, forbids to use at the bottom of bag of cement plugging plate, avoids causing " rotten " phenomenon.
4. shrinkage joint exterior wall aluminum alloy mould plate construction recommendation on improvement.
4.1. aluminum alloy mould plate is less than the utilization in 30cm in shrinkage joint distance
4.1.1, when shrinkage joint spacing is when being less than 150mm ~ 300mm, after improving, the production method of aluminum alloy mould plate then uses two sides to be all that level and smooth standard size aluminium alloys panel beating assembles, each standard size al alloy joint is connected by steel plate surrounding full weld, adopt four sides arc welding during welding, welding procedure meets solder technology regulatory requirements, for height at below 3000mm wall column aluminum alloy mould plate, thick and the welding procedure of the length and width of jigsaw can be determined by calculating, whether can meet the requirements by calculating for the wall column being highly greater than 3000mm, select whether placement layer by layer, reduce the pressure of bottom template, control the risk of mould of rising well, it is thickness of slab+steel jigsaw thickness+bolt thickness that such shrinkage joint inner formword reinforces width requirement, 120mm ~ 180mm can be saved altogether in the one-sided both sides, space can saving nearly 60mm ~ 90mm, the joined together bolt one used is welded with the bolt cylinder of pad for one end, this bolt and can simultaneously the constructing with the use of by prior art operating process of aluminum alloy mould plate after improving.
4.1.2, when shrinkage joint spacing is when being less than 150mm, aluminum alloy mould plate after aluminum alloy mould plate adopts and improves, if must construct in the both sides, shrinkage joint of highrise building simultaneously, then adopt the method for filling benzene plate, if do not need, overall moldings formed therefrom bolt then can be adopted to coordinate and to improve rear aluminum alloy mould plate use, this overall moldings formed therefrom bolt is the bolt cylinder that two ends are all provided with pad, and total length is no more than 80mm, after first aluminum alloy mould plate being installed during Specific construction, screw rod passes through shrinkage joint and the aluminum alloy mould plate of both sides, through shrinkage joint, overall moldings formed therefrom bolt sleeve is on screw rod and between the aluminum alloy mould plate being placed on both sides, shrinkage joint, when building complete on the left of shrinkage joint and reaching concrete side and remove after intensity, unclamp screw rod on the left of shrinkage joint, directly pull on the right side of shrinkage joint, then can reinforce on the right side of shrinkage joint at once.
5. shrinkage joint place aluminum alloy mould plate installation steps and method.
5.1 research drawings, determine construction method, calculate template strength and screw strength,
5.2 determine the assembled length of aluminum alloy mould plate, highly, and template.Scene connects, and can rivet, and also can weld, and selects connected mode by actual.Shrinkage joint place template group is dressed up one piece of large form, and gross mass must be less than the hoisting weight of tower crane.Welding hanging ring on large form.
outside 5.3 shrinkage joint, large mould location and straightening are all carried out with bolt, can ensure high-quality and low labour intensity.
5.4 through-wall bolt one bars are dual-purpose, and bolt front end can withstand on axle wall, to ensure verticality and to ensure that expansion joint width is correct; After batten mould is installed, become fastening bolt again simultaneously.In the joist construction stage, for ease of reinforcement installation, use short interim support top positioning bolt, this bolt is welded with T suffix and can regulates by hand twisting screw rod.
assembling outside 5.5 shrinkage joint after hoisted in position, rapidly and shrinkage joint place matched moulds, following step is installed with shrinkage joint place aluminum alloy mould plate.
Claims (1)
1. one kind is used in settlement joint place large formwork construction method in aluminum alloy formwork system, it is characterized in that: in the highrise building being provided with shrinkage joint or aseismatic joint, adopt density ratio steel plate Density Density little, make area ratio block out mold large, functional performance differs the bolt of aluminum alloy mould plate and the special facture do not beaten with the use of construction with block out mold; Concrete construction method is as follows:
One, when shrinkage joint or aseismatic joint spacing are greater than 500mm, the production method of aluminum alloy mould plate is consistent with prior art steel form production method, wherein aluminium shuttering panel making method is be all that level and smooth standard size aluminium alloys panel beating assembles by two sides, back of the body rib is arranged on rear side of aluminum alloy mould plate, aluminum alloy mould plate is placed on both sides, shrinkage joint and corresponding wall, constructs by general model sheetinstallat construction technology simultaneously;
Two, when shrinkage joint or aseismatic joint spacing are at 150mm ~ 500mm, after improving, the production method of aluminum alloy mould plate is then all that level and smooth standard size aluminium alloys panel beating assembles by two sides, each standard size al alloy joint is connected by steel plate surrounding full weld, on rear side of it, back of the body rib is no longer installed, for height at below 3000mm wall column aluminum alloy mould plate, thick and the welding procedure of the length and width of jigsaw can be determined by calculating, whether can meet the requirements by calculating for the wall column being highly greater than 3000mm, select whether placement layer by layer, reduce the pressure of bottom template, control the risk of mould of rising well, it is thickness of slab+steel jigsaw thickness+bolt thickness that such shrinkage joint inner formword reinforces width requirement, 120mm ~ 180mm can be saved altogether in the one-sided both sides, space can saving nearly 60mm ~ 90mm, the joined together bolt one used is welded with the bolt cylinder of pad for one end, this bolt and can simultaneously the constructing with the use of by prior art operating process of aluminum alloy mould plate after improving,
Three, when shrinkage joint or aseismatic joint spacing are when being less than 150mm, aluminum alloy mould plate after aluminum alloy mould plate adopts and improves, if must construct in the shrinkage joint of highrise building or aseismatic joint both sides simultaneously, then adopt the method for filling benzene plate, if do not need, overall moldings formed therefrom bolt then can be adopted to coordinate and to improve rear aluminum alloy mould plate use, this overall moldings formed therefrom bolt is the bolt cylinder that two ends are all provided with pad, and total length is no more than 80mm, after first aluminum alloy mould plate being installed during Specific construction, screw rod passes through shrinkage joint and the aluminum alloy mould plate of both sides, through shrinkage joint, overall moldings formed therefrom bolt sleeve is on screw rod and between the aluminum alloy mould plate being placed on both sides, shrinkage joint, when building complete on the left of shrinkage joint and reaching concrete side and remove after intensity, unclamp screw rod on the left of shrinkage joint, directly pull on the right side of shrinkage joint, then can reinforce on the right side of shrinkage joint at once.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105239777A (en) * | 2015-09-07 | 2016-01-13 | 天津送变电工程公司 | Tie bolt leakage-proof plugging process for frame column formwork |
| CN106320691A (en) * | 2016-08-23 | 2017-01-11 | 中建八局第二建设有限公司 | Aluminum-wood formwork construction method |
| CN109457958A (en) * | 2018-12-24 | 2019-03-12 | 上海建工七建集团有限公司 | Twin columns subsiding crack template and its installation method |
| CN115012663A (en) * | 2022-06-29 | 2022-09-06 | 中冶天工集团有限公司 | Grouting plugging piece and plugging device for prefabricated column root and construction method of grouting plugging piece and plugging device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105239777A (en) * | 2015-09-07 | 2016-01-13 | 天津送变电工程公司 | Tie bolt leakage-proof plugging process for frame column formwork |
| CN106320691A (en) * | 2016-08-23 | 2017-01-11 | 中建八局第二建设有限公司 | Aluminum-wood formwork construction method |
| CN106320691B (en) * | 2016-08-23 | 2019-01-01 | 中建八局第二建设有限公司 | Aluminum wood template construction method |
| CN109457958A (en) * | 2018-12-24 | 2019-03-12 | 上海建工七建集团有限公司 | Twin columns subsiding crack template and its installation method |
| CN115012663A (en) * | 2022-06-29 | 2022-09-06 | 中冶天工集团有限公司 | Grouting plugging piece and plugging device for prefabricated column root and construction method of grouting plugging piece and plugging device |
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Application publication date: 20150624 |