CN103485549B - Based on the localization method to large-scale built-in fitting - Google Patents

Based on the localization method to large-scale built-in fitting Download PDF

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CN103485549B
CN103485549B CN201310434369.9A CN201310434369A CN103485549B CN 103485549 B CN103485549 B CN 103485549B CN 201310434369 A CN201310434369 A CN 201310434369A CN 103485549 B CN103485549 B CN 103485549B
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buried
iron
fitting
built
steel pipe
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CN201310434369.9A
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Chinese (zh)
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CN103485549A (en
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谭启厚
贺德福
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中国五冶集团有限公司
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Abstract

The invention discloses a kind of based on to the positioner of large-scale built-in fitting and localization method thereof, comprise caging system, pre-buried i iron is fixed with in caging system, the two ends of pre-buried i iron are arranged on the outside of caging system, fixing angle steel is provided with between adjacent pre-buried i iron, fixing angle steel is connected with pre-buried i iron respectively, the top of pre-buried i iron is all fixed with guiding steel pipe, the center line of guiding steel pipe and pre-buried i iron overlaps, insert pre-buried i iron, measureing equipment measurement embedded part supporting steel plate end face is used to equal H1 to the bottom absolute altitude of pre-buried i iron, fixing Bolted angle connection is used between adjacent pre-buried i iron, concreting, guiding steel pipe is installed in the center of embedded part supporting steel plate, and lift built-in fitting with tower crane, built-in fitting is linked on the outer wall of guiding steel pipe, and spot welding is fixed, concreting.Utilize this positioner and localization method to realize horizontal absolute altitude and vertical distribution, accuracy is higher, shorter in time, has saved human and material resources.

Description

Based on the localization method to large-scale built-in fitting
Technical field
The present invention relates to a kind of based on to the positioner of large-scale built-in fitting and localization method thereof, belong to the positioning field to large-scale built-in fitting in building operations.
Background technology
Built-in fitting (prefabricated embedded part) is exactly install (burying) component in concealed work in advance, and the component and fitting settled when structure is built exactly, for building overlap joint during superstructure by laying bricks or stones, the installation being beneficial to external works equipment Foundations is fixed.Built-in fitting is manufactured by metal mostly.In building operations, use the situation of built-in fitting very many, tradition is all small-sized built-in fitting, its volume and weight are all very little, operating personnel can be located easily, locate all more accurate, along with the development of building trade, size and the weight of building required pre-buried parts in large-scale building place also exceed traditional built-in fitting, this large-scale built-in fitting oversize, when weight is overweight, operating personnel cannot manually be positioned, all position after adopting mechanical hoisting, but mechanical hoisting also exists human eye and cannot directly observe, need to position by auxiliary equipment, tradition its position and absolute altitude when pre-buried control inaccurate, and spend more manpower, machinery and time.
The set aside pre-embedded of present large-scale built-in fitting, generally after being lifted by tower crane, be placed directly in the position of surveying setting-out location, and then carry out the adjustment in thin portion, but stock size adjustment is not very accurate, horizontal absolute altitude and vertical distribution control inaccurate, when required precision is high, be difficult to reach designing requirement, and bring very large difficulty for the installation in later stage, particularly run into anchor fluke with in the conflicting situation of reinforcing bar, the adjustment difficulty of reinforcing bar is also very large, waste a large amount of human and material resources and time, effect is but undesirable.
Summary of the invention
The object of the invention is to overcome the existing horizontal absolute altitude to large-scale built-in fitting and vertical distribution controls inaccurate, and lose time, the problem of human and material resources, devise a kind of based on to the positioner of large-scale built-in fitting and localization method thereof, utilize the problem of this positioner and the localization method well horizontal absolute altitude of solution and vertical distribution, accuracy is higher, and shorter in time, save human and material resources.
Object of the present invention is achieved through the following technical solutions: based on the positioner to large-scale built-in fitting, comprise caging system, four pre-buried i iron are fixed with in described caging system, the outside of caging system is arranged on after the two ends of pre-buried i iron all pass perpendicularly through caging system, be parallel to each other between pre-buried i iron, and be provided with fixing angle steel between adjacent pre-buried i iron, fixing angle steel connects and composes rectangular configuration with pre-buried i iron respectively, the top of pre-buried i iron is all fixed with guiding steel pipe, and the center line of guiding steel pipe and the center line of corresponding pre-buried i iron overlap.
In technique scheme, to be interweaved formation caging system by several reinforcing bars, gap is had between every root reinforcing bar, the pre-buried i iron that four root architectures are identical is inserted in the gap in caging system, four pre-buried i iron adopt sustained height to insert, and to be welded and fixed with caging system, realize the fixing of horizontal and vertical position, increase the stability of location, pre-buried i iron can be strengthened with the globality of caging system, fixed by angle steel between pre-buried i iron simultaneously, the two ends of angle steel are welded with corresponding pre-buried i iron respectively, angle steel forms a rectangular configuration, add the resistance to overturning between pre-buried i iron, and define the position of pre-buried i iron in the horizontal direction, solve the problem of horizontal absolute altitude, utilize pre-buried i iron find range from, achieve the problem of vertical distribution, utilize the guiding steel pipe in the pre-buried i iron welded top of each root, built-in fitting accurately can be imported, accuracy is higher, and built-in fitting only need aim the place when entering and inserts, shorter in time, and tradition is all position built-in fitting being lifted on initial unwrapping wire location to the locate mode of large-scale built-in fitting, such step is lifted on by built-in fitting the position finding location in the air again, efficiency is low, and it is inaccurate, and the built-in fitting long long period is hung in the aerial position finding location, the probability met accident is large, and be lifted on the interference being easily subject to wind speed in the air, easy generation swings, the error of location is large, and pass through this programme, first locate on the ground, again by guiding and the insertion of guiding steel pipe, determine the position of built-in fitting, save manpower, material resources.
The top of described pre-buried i iron is provided with embedded part supporting steel plate, and the center of embedded part supporting steel plate is arranged on the center line of this pre-buried i iron, and the top of guiding steel pipe and embedded part supporting steel plate is fixed.Embedded part supporting steel plate is employing one piece of end face is foursquare steel plate, and the size of end face is greater than the top end face size of pre-buried i iron, the end face of pre-buried i iron could to be covered completely like this, embedded part supporting steel plate is as guiding steel pipe stationary device, make guiding steel pipe can be connected for overall with pre-buried i iron, guiding steel pipe is owing to being finally be inserted in built-in fitting, so the parts that can not arrange other between guiding steel pipe are interconnected, avoid causing interference, so guiding steel pipe and the fixing of embedded part supporting steel plate must firmly and be stablized, adopt between pre-buried i iron and embedded part supporting steel plate and be welded and fixed, strengthen its stability, to ensure that the center of embedded part supporting steel plate is arranged on the center line of this pre-buried i iron simultaneously, and the top end face of embedded part supporting steel plate keeps level, center of gravity can not be offset, the center line of steel pipe of can ensureing when installing guiding steel pipe to lead is parallel with plumb line, after making built-in fitting pass through guiding steel pipe location, can ensure that the position of its horizontal direction is accurate.Guiding steel pipe, by being welded on after on embedded part supporting steel plate, after built-in fitting lifting, directly through the passage that built-in fitting relevant position is arranged, can be inserted in built-in fitting, utilizes more than three location not achieving built-in fitting at conplane guiding steel pipe.
The top of described embedded part supporting steel plate is provided with through hole, and the center of embedded part supporting steel plate is arranged on the axis of through hole, and the bottom of guiding steel pipe is arranged in through-holes, and the guiding center line of steel pipe and the dead in line of through hole.Guiding steel pipe is the hollow tubular structures adopting metal material to make, and lead between steel pipe and embedded part supporting steel plate if adopt end contact, there is the effect that is easily subject to cross shear and cause coming off between guiding steel pipe and embedded part supporting steel plate, so we have employed arrange through hole on embedded part supporting steel plate, the bottom of guiding steel pipe is inserted in through hole, through hole runs through embedded part supporting steel plate, with the tip contact of pre-buried i iron after making guiding steel pipe insert, in order to ensure the smooth of insertion, the diameter of through hole is greater than the outer diameter of guiding steel pipe, gap between the wall of through hole and the outer wall of guiding steel pipe can not be too large, easily cause too greatly guiding steel pipe rocking in through-holes, the diameter of general through hole is greater than the outer diameter 10mm of guiding steel pipe for best, in fact the wall distance of the outer wall of steel pipe and through hole of leading is 5mm, namely this distance can ensure the insertion of guiding steel pipe, can prevent again guiding steel pipe from violent rocking occurring in through-holes, and the distance of 5mm can carry out landfill by the mode of welding, achieve the connective stability of guiding steel pipe and embedded part supporting steel plate, form overall structure.
Described caging system comprises the spacing net of some layers, and spacing net is that vertical superposes setting successively, there is gap between adjacent spacing net, and pre-buried i iron passes all spacing nets and fixes with it.The spacing net of every one deck is all form by cross one another reinforcing bar, and caging system is spacing net is superposing formation vertically, and leave gap between adjacent spacing net, as concreting, also ensure simultaneously pre-buried i iron through thus spacing net after be welded and fixed time stability higher, pre-buried i iron has certain length, if spacing net is only fixed with the latter half of pre-buried i iron, the first half of pre-buried i iron is so easily caused to rock, so need to arrange enough gaps by between spacing net, the spacing net of multilayer can be fixed with pre-buried i iron top and the bottom respectively, reduce rocking of pre-buried i iron, make the stability of pre-buried i iron when positioning higher.
Based on the localization method to large-scale built-in fitting, comprise the following steps:
(1) by arranging fixing reinforcing bar as spacing net, inserting pre-buried i iron in the relevant position of built-in fitting four angle end anchor poles, using measureing equipment, is generally use transit survey, transit, is the instrument measuring horizontal angle and vertical angle.Design according to angle measuring principle.Architectural be a kind of relatively conventional equipment, adopt transit survey and adjust the embedded part supporting steel plate end face on pre-buried i iron and equal H1 to the bottom absolute altitude of pre-buried i iron, afterwards pre-buried i iron is welded with spacing net, pre-buried i iron position and absolute altitude are fixed, then between adjacent pre-buried i iron, use fixing Bolted angle connection, last concreting, concrete thickness is h1, the bottom of H1 and h1 is at grade, is so just decided by the vertical distribution of built-in fitting;
(2) guiding steel pipe is set on the top of embedded part supporting steel plate, the center of embedded part supporting steel plate is reserved with the installation site of the through hole more bigger than guiding outer wall of steel pipe diameter as guiding steel pipe, the bottom of guiding steel pipe is inserted in through hole, and the center line of guiding steel pipe overlaps with the center line of embedded part supporting steel plate, then welding manner is adopted guiding steel pipe and embedded part supporting steel plate to be fixed, realize guiding steel pipe and pre-buried i iron to constitute integrated connection, so just accurately located the horizontal level of built-in fitting;
(3) after the horizontal level of built-in fitting and vertical distribution are all determined, just can lift built-in fitting by direct tower crane, built-in fitting is lifted into directly over guiding steel pipe, utilize pre-buried by the hole offered, built-in fitting correspondence is linked on the outer wall of each root guiding steel pipe, and after finely tuning, spot welding is fixed, concreting again, achieves the location of built-in fitting.Adopt this localization method, the problem of horizontal absolute altitude and vertical distribution can be solved, positioned by plug-in type mode, and the position of the steel pipe that leads is vertical fixing, built-in fitting after such insertion accuracy is higher, and it is shorter in time, decrease that to find when location is put in unwrapping wire orientation after tradition adopts lifting error, and stop the consumption being lifted on the human and material resources caused for a long time in the air, the lifting of disposable short time can be realized put in place, save man power and material, achieve marked improvement and outstanding technique effect.
The concrete top of building in described step (1) is between fixing angle steel and spacing net.In order to ensure that the location of pre-buried i iron and spacing net is added strong stability, so need concreting, due in step (1), also guiding steel pipe is not set, installed surface for the ease of the steel pipe that leads cleans, so need during first time concreting to control concrete building highly, concrete both covered fleece completely, reserve the space of guiding penstock installation again, so the concrete top of building is between fixing angle steel and spacing net.
The quantity of the guiding steel pipe of described step (2) is three, respectively the corresponding center being arranged on wherein one piece of embedded part supporting steel plate.Because guiding steel pipe is the center being vertically fixed on embedded part supporting steel plate, the axis of the guiding steel pipe so on embedded part supporting steel plate is not in same plane, just triangle is formed after being connected at the center of three guiding steel pipes like this, triangle is utilized to have the principle of stability, built-in fitting cover is incorporated on guiding steel pipe, just can in the horizontal direction built-in fitting be positioned, certainly, three guiding steel pipes are optimal numbers, if all embedded part supporting steel plates are all arrange guiding steel pipe, be exactly four guiding steel pipes, form rectangular configuration, also can in the horizontal direction built-in fitting be positioned, guiding steel pipe quantity be more than three and three.
In sum, the invention has the beneficial effects as follows:
(1) utilize the connection of spacing net and pre-buried i iron and fix, fine position net is passed perpendicularly through by pre-buried i iron, pre-buried i iron and spacing net form overall structure, horizontal and vertical position between them can both be fixed, and can measure in advance due to the height of pre-buried i iron, in the follow-up location to large-scale built-in fitting, setting height(from bottom) can both be calculated accurately, the error existed when decreasing tradition location;
(2) equipment and materials of the present invention is all the obsolete material splicing adopted on building site, without specialized designs manufacture, only need the structure of the material ensureing same position and be of the required size, achieving the recycling of material, decrease the consumption of cost, reduce the cost of integrated engineering;
(3) the guiding steel pipe of welding is utilized, after built-in fitting is lifted, the hole arranged on built-in fitting in advance is directly linked on corresponding guiding steel pipe, three and the above positioning steel tube just location of realization to built-in fitting, process is simple and accuracy is high, decreases the consumption of a large amount of man power and materials that traditional locate mode occurs, relative to the mode of bracing wire location again after traditional lifting, efficiency and the accuracy of nested location of the present invention are all very high, shorten construction period;
(4) steel pipe that leads is connected for overall structure by embedded part supporting steel plate with pre-buried i iron, the stability of whole positioner is improved, and when the location and installation of built-in fitting, the embedded part supporting steel plate that each root guiding steel pipe is connected with it, the center of pre-buried i iron are all point-blank, the weight of large-scale built-in fitting can be born and do not produce mobile or skew, making registration.
Accompanying drawing explanation
Fig. 1 is angle steel scheme of installation of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is that the A-A of Fig. 2 is to sectional view;
Fig. 4 is the B place enlarged drawing of Fig. 3;
Fig. 5 is installation of embedded parts schematic diagram;
Fig. 6 is the C place enlarged drawing of Fig. 5.
Mark and corresponding component title in accompanying drawing: 1-concrete construction joint; 2-fixing angle steel; 3-embedded part supporting steel plate; 4-pre-buried i iron; 5-spacing net one; 6-spacing net two; 7-guiding steel pipe; 8-anchor pole bottom sealing plate; 9-built-in fitting top board; 10-built-in fitting anchor pole.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment 1:
As Fig. 1, shown in Fig. 2, based on the positioner to large-scale built-in fitting, comprise caging system, four pre-buried i iron 4 are fixed with in described caging system, the outside of caging system is arranged on after the two ends of pre-buried i iron 4 all pass perpendicularly through caging system, be parallel to each other between pre-buried i iron 4, and be provided with fixing angle steel 2 between adjacent pre-buried i iron 4, fixing angle steel 2 connects and composes rectangular configuration with pre-buried i iron 4 respectively, the top of pre-buried i iron 4 is all fixed with guiding steel pipe 7, and the center line of guiding steel pipe 7 and the center line of corresponding pre-buried i iron 4 overlap.Utilize the connection of spacing net and pre-buried i iron 4 and fix, fine position net is passed perpendicularly through by pre-buried i iron 4, pre-buried i iron 4 and spacing net form overall structure, horizontal and vertical position between them can both be fixed, and can measure in advance due to the height of pre-buried i iron 4, in the follow-up location to large-scale built-in fitting, setting height(from bottom) can both be calculated accurately, the error existed when decreasing tradition location, the length of guiding steel pipe 7 also can be measured, the height of whole device can both be measured, the height of fixing angle steel 2 also can be measured, so the horizontal dimension of device also can realize determining, location for built-in fitting can accurately be measured, reduce error.
Embodiment 2:
As shown in Figure 3, Figure 4, on the basis of embodiment 1, the top of described pre-buried i iron 4 is provided with embedded part supporting steel plate 3, and the center of embedded part supporting steel plate 3 is arranged on the center line of this pre-buried i iron 4, and guiding steel pipe 7 is fixed with the top of embedded part supporting steel plate 3.Embedded part supporting steel plate 3 adopts the discarded steel plate on building site to use, improve the recycling rate of waterused of material, and reduce cost consumption, the face area of embedded part supporting steel plate 3 is greater than the apex area of pre-buried i iron 4, the top of pre-buried i iron 4 could be covered completely, the top of pre-buried i iron 4 can be welded on embedded part supporting steel plate 3 completely, simultaneously in order to ensure the stable of center of gravity, need the center of embedded part supporting steel plate 3 to be arranged on the center line of this pre-buried i iron 4, make when carrying out the location and installation of built-in fitting, stressed can be point-blank, the stability of positioner is improved, and there will not be the situation of inclination.
Embodiment 3:
As shown in Figure 3, Figure 4, on the basis of above-described embodiment, the top of described embedded part supporting steel plate 3 is provided with through hole, and the center of embedded part supporting steel plate 3 is arranged on the axis of through hole, the bottom of guiding steel pipe 7 is arranged in through-holes, and the guiding center line of steel pipe 7 and the dead in line of through hole.Get three pieces of embedded part supporting steel plates 3, measure thereon and draw the cross hairs of center, as shown in Figure 4, through hole is offered in the center of cross hairs, the diameter of through hole is greater than the external diameter 10mm of guiding steel pipe 7, guiding steel pipe 7 is inserted in through hole, and adopt wlding guiding steel pipe 7 and through hole to be welded together, the resistance to overturning of guiding steel pipe 7 is improved, because guiding steel pipe 7 inserts as guiding built-in fitting, so bracing or strutting arrangement can not be arranged again between guiding steel pipe 7, this just needs each root to lead steel pipe 7 when fixing with embedded part supporting steel plate 3, stable fixed structure can be had, through hole is set and finally welds together, by guiding steel pipe 7 best way fixing with embedded part supporting steel plate 3.
Described caging system comprises the spacing net of some layers, and spacing net is that vertical superposes setting successively, there is gap between adjacent spacing net, and pre-buried i iron 4 passes all spacing nets and fixes with it.As shown in Figure 1, under normal circumstances, two-layer spacing net is set and just can meets fixing pre-buried i iron 4, for convenience of description, by spacing for spacing for upper strata net called after net 1, the spacing net 26 of lower floor's spacing net called after, spacing net 1 is arranged on directly over spacing net 26, pre-buried i iron 4 is simultaneously through spacing net 1 and spacing net 26, and the bottom of pre-buried i iron 4 and the bottom of spacing net 26 are arranged in same plane, the distance of spacing net 1 and spacing net 26 is 2/3rds length of pre-buried i iron 4, can ensure so pre-buried i iron 4 with spacing net weld after, can not produce and rock, resistance to overturning improves, built-in fitting is when location and installation, pre-buried i iron 4 and the spacing entirety formed of netting can keep fixing and not move.
Embodiment 4:
As shown in Figure 5, Figure 6, based on the localization method to large-scale built-in fitting, comprise the following steps:
(1) by arranging fixing reinforcing bar as upper and lower two-layer spacing net, pre-buried i iron 4 is inserted in the relevant position of built-in fitting four angle end anchor poles, use transit survey and adjust embedded part supporting steel plate 3 end face on pre-buried i iron 4 and equal H1 to the bottom absolute altitude of pre-buried i iron 4, H1 is 1500mm, afterwards pre-buried i iron 4 is welded with two-layer spacing net simultaneously, the bottom of pre-buried i iron and the bottom of spacing net two are at grade, distance between spacing net one and spacing net two is 2/3rds of the length of pre-buried i iron, prevent from pre-buried i iron from producing to swing, pre-buried i iron 4 position and absolute altitude are fixed, the absolute altitude of pre-buried i iron 4 is 1450mm, then between adjacent pre-buried i iron 4, use fixing angle steel 2 to connect, last concreting, concrete thickness is h1, h1 is 1200mm, concrete covers spacing net completely, this time concrete end face called after concrete construction joint 1, so just the vertical distribution of built-in fitting is decided,
(2) top of three pieces of embedded part supporting steel plates 3 all arranges guiding steel pipe 7 wherein, the center of embedded part supporting steel plate 3 is reserved with the installation site of through hole as guiding steel pipe 7, and the center line of guiding steel pipe 7 overlaps with the center line of embedded part supporting steel plate 3, the length of guiding steel pipe 7 is 3600mm, external diameter is 48mm, the through-hole diameter that the center of embedded part supporting steel plate 3 is reserved is 58mm, guiding steel pipe 7 can be inserted in through hole smoothly, and weld, just accurately located the horizontal level of built-in fitting like this;
(3) after the horizontal level of built-in fitting and vertical distribution are all determined, direct tower crane lifts built-in fitting, anchor pole bottom sealing plate 8 in four angle end built-in fitting anchor poles 10 on built-in fitting offers the through hole that diameter is 48mm, built-in fitting is lifted into after directly over positioner, through hole runs through whole built-in fitting anchor pole 10, each root guiding steel pipe 7 correspondence is through the through hole on a wherein built-in fitting anchor pole 10, the top of guiding steel pipe 7 is arranged on 200mm place above built-in fitting top board 9, the height h3 of built-in fitting just can calculate, after finely tuning, spot welding is fixed, on concrete construction joint 1, concreting covers built-in fitting again, achieve the location of built-in fitting.
Adopt and locate in this way, need by utilizing pre-buried i iron 4 to insert in the relevant position of built-in fitting four angle end anchor poles in advance, four angle end built-in fitting anchor poles 10 of simultaneously built-in fitting offer through hole, correspondence is arranged on the guiding steel pipe 7 on pre-buried i iron 4, position fixing process is quick and accurate, relative to traditional locate mode, improves location efficiency, decrease the consumption of man power and material, improve regular accuracy.
The above; it is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention, every according to technology of the present invention, method in fact to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.

Claims (3)

1. based on the localization method to large-scale built-in fitting, it is characterized in that, comprise the following steps:
(1) caging system is comprised, four pre-buried i iron (4) are fixed with in described caging system, the two ends of pre-buried i iron (4) all pass perpendicularly through caging system, pre-buried i iron is parallel to each other between (4), and be provided with fixing angle steel (2) between adjacent pre-buried i iron (4), fixing angle steel (2) connects and composes rectangular configuration with pre-buried i iron (4) respectively, the top of pre-buried i iron (4) is all fixed with guiding steel pipe (7), and the center line of the center line of guiding steel pipe (7) and corresponding pre-buried i iron (4) overlaps, the top of described pre-buried i iron (4) is provided with embedded part supporting steel plate (3), and the center of embedded part supporting steel plate (3) is arranged on the center line of this pre-buried i iron (4), and guiding steel pipe (7) is fixed with the top of embedded part supporting steel plate (3), the top of described embedded part supporting steel plate (3) is provided with through hole, and the center of embedded part supporting steel plate (3) is arranged on the axis of through hole, and the bottom of guiding steel pipe (7) is arranged in through-holes, and the center line of guiding steel pipe (7) and the dead in line of through hole, the diameter of described through hole is greater than the outer diameter of guiding steel pipe (7), described caging system comprises the spacing net of some layers, and spacing net is that vertical superposes setting successively, there is gap between adjacent spacing net, and pre-buried i iron (4) is through all spacing nets and fix with it, by arranging fixing reinforcing bar as spacing net, pre-buried i iron (4) is inserted in the relevant position of built-in fitting four angle end anchor poles, use measureing equipment to measure and adjust embedded part supporting steel plate (3) end face on pre-buried i iron (4) and equal design load H1 to the bottom absolute altitude of pre-buried i iron (4), afterwards pre-buried i iron (4) is welded with spacing net, pre-buried i iron (4) position and absolute altitude are fixed, then between adjacent pre-buried i iron (4), use fixing angle steel (2) to connect, last concreting, concrete thickness is design load h1, so just the vertical distribution of built-in fitting is decided,
(2) guiding steel pipe (7) is set on the top of embedded part supporting steel plate (3), the center of embedded part supporting steel plate (3) is reserved with the installation site of through hole as guiding steel pipe (7), and the center line of guiding steel pipe (7) overlaps with the center line of embedded part supporting steel plate (3), so just accurately located the horizontal level of built-in fitting;
(3), after the horizontal level of built-in fitting and vertical distribution are all determined, just adopt tower crane lifting built-in fitting, built-in fitting correspondence is linked on the outer wall of each root guiding steel pipe (7), after finely tuning, spot welding is fixed, again concreting, achieves the location of built-in fitting.
2. according to claim 1 based on the localization method to large-scale built-in fitting, it is characterized in that: the concrete top of building in described step (1) is between fixing angle steel (2) and spacing net.
3. according to claim 1 based on the localization method to large-scale built-in fitting, it is characterized in that: the quantity of the guiding steel pipe (7) of described step (2) is three, and correspondence is arranged on the center of wherein one piece of embedded part supporting steel plate (3) respectively.
CN201310434369.9A 2013-09-23 2013-09-23 Based on the localization method to large-scale built-in fitting CN103485549B (en)

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