CN102392540A - High-precision method and structure for positioning high-precision precast beam - Google Patents

High-precision method and structure for positioning high-precision precast beam Download PDF

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Publication number
CN102392540A
CN102392540A CN2011103245030A CN201110324503A CN102392540A CN 102392540 A CN102392540 A CN 102392540A CN 2011103245030 A CN2011103245030 A CN 2011103245030A CN 201110324503 A CN201110324503 A CN 201110324503A CN 102392540 A CN102392540 A CN 102392540A
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China
Prior art keywords
precast beam
location
alignment pin
locating
high accuracy
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CN2011103245030A
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CN102392540B (en
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葛以衡
陈立生
黄永春
赵国强
叶可炯
蔡烨
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Shanghai No2 Municipal Engineering Co Ltd
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Shanghai No2 Municipal Engineering Co Ltd
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Abstract

The invention belongs to the field of constructional engineering and in particular relates to a high-precision method and structure for positioning a high-precision precast beam. The method comprises the following steps: installing at least one stop pin on the bottom of the end part of a precast beam; installing one locating rack on one side surface, opposite to the other beam column, of at least one beam column, wherein the locating rack is provided with a locating plate; the locating plate is horizontally extended and arranged and is provided with a locating hole; the precast beam is hoisted above the beam column; the horizontal position of the precast beam is adjusted to cause the stop pin to correspond to the locating hole; the precast beam is fallen to cause the precast beam to be arranged on the upper end of the beam column; and the stop pin is inserted in the locating hole. The method has the advantages of high positioning precision during installation, simplicity and convenience in construction and capability of greatly saving the days for construction, manpower and material resources; and the structure provided by the invention is stable, and the positioning tool is simple in structure, can be reused and is low in cost.

Description

High accuracy precast beam localization method and location structure
Technical field
The invention belongs to building engineering field, be specifically related to a kind of high accuracy precast beam localization method and location structure.
Background technology
Mostly increasing employing precast beam structure in present building structure, the fabricated precast beam of this kind are to pour into a mould the structural member as the beam body in advance at system Liang Chang, again it are transferred to the job site and assemble, so can significantly save the engineering time.After precast beam is transported to the job site from system Liang Chang; Just need it be put in place with the precision lifting of setting up that allows; And during actual hanging often because the precision of apparatus is limited; And the surrounding enviroment factor affecting, precast beam basically can not be with the predetermined precision position that falls of setting up, and this just need carry out trickle adjustment to the position that precast beam falls behind the position.And common way be with the position that roughly coincide with the precast beam position that falls, carry out trickle adjustment through instruments such as jack more afterwards.Above-mentioned job practices has following drawback: increased construction sequence first, wasted lot of manpower and material resources, and prolonged construction period; Second in the adjustment process after precast beam falls the position, if misoperation is prone to cause security incident; Three precast beams back, position that falls is less with the beam column contact surface, and the precast beam deadweight is very big, and precast beam and beam column all adopt reinforced concrete structure, is in course of adjustment and very easily damages the local surfaces of precast beam and beam column.
Summary of the invention
The objective of the invention is weak point according to above-mentioned prior art; A kind of high accuracy precast beam location structure and localization method are proposed; This localization method through be fixed on locating rack on the beam column, alignment pin is fixed on the precast beam; Locate to realize quick high accuracy through the cooperation between locating rack and alignment pin, thereby constitute a kind of high accuracy precast beam location structure.
The object of the invention is accomplished by following technical scheme:
A kind of high accuracy precast beam localization method relates to two beam columns and a precast beam, it is characterized in that comprising the steps:
At least certain position pin is installed on the bottom surface of precast beam end; One locating rack is installed on the side of relative another beam column of at least one beam column, and said locating rack has the location-plate that a horizontal-extending is provided with, and offers a locating hole on the said location-plate;
The extremely said beam column of hoisting prefabricated beam top, and adjust its horizontal level so that the corresponding said locating hole of said alignment pin;
Fall said precast beam so that it is held on said beam column upper end, and alignment pin is plugged in the said locating hole.
The quantity of said alignment pin and locating rack is one, and said method comprises the steps: that also with this alignment pin be the relative position that the said precast beam other end and beam column are adjusted in rotating shaft.
The quantity of said alignment pin and locating rack is two, and described two locating racks are located at two sides that beam column is relative respectively, and described two alignment pins are located at the bottom surface at precast beam both ends respectively.。
Said method comprises the steps: to dismantle said locating rack and alignment pin after accomplish said precast beam location.
Said alignment pin comprises coaxial circular cone body and the cylinder part that joins, said cylinder part end face and said precast beam bottom surface bolt, and said locating hole is a circular hole, and its diameter is identical with said cylinder part diameter.
A kind of high accuracy precast beam location structure; Comprise two beam columns and a precast beam, it is characterized in that: also comprise at least one by the positioner that locating rack and alignment pin constitute, the detachable beam column side of another beam column relatively of being fixed in of said locating rack; And has a location-plate that a horizontal-extending is provided with; Offer a locating hole on the said location-plate, said alignment pin is detachable to be fixed on the bottom surface of said precast beam end, and can be plugged in the said locating hole/from said locating hole, extract out.
The quantity of said location structure is two, and the locating rack in said two location structures is located at two sides that beam column is relative respectively, and the alignment pin in said two location structures is located at the bottom surface at precast beam both ends respectively.
Said locating rack comprises a fixed head, said fixed head fit said beam column side and bolt, and said location-plate vertical fixing is in this fixed head upper limb.
The both side edges of said fixed head and location-plate is provided with floor.
Be embedded with at least one on the said precast beam and be used for the nut with said alignment pin bolt, be embedded with some nuts that are used for said locating rack bolt at least one beam column.
Advantage of the present invention is: the positioning accuracy during installation is high, Stability Analysis of Structures; It is simple and convenient to construct, and has saved duration and manpower and materials greatly; Orientation tool is simple in structure, reusable, and is with low cost.
Description of drawings
Fig. 1 is embodiment 1 a location structure general illustration;
Fig. 2 is the local enlarged diagram of embodiment 1 positioner part;
Fig. 3 is embodiment 1 a positioner right view;
Fig. 4 is embodiment 2 location structure general illustration.
The specific embodiment
Through embodiment characteristic of the present invention and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-4, mark 1-14 is respectively among the figure: first beam column 1, second beam column 2, precast beam 3, positioner 4, locating rack 5, fixed head 6, location-plate 7, locating hole 8, alignment pin 9, circular cone body 10, cylinder part 11, bolt 12, nut 13, floor 14.
Be elaborated for high accuracy precast beam location structure below in conjunction with embodiment:
Embodiment 1:
Shown in Fig. 1-3, the related location structure of present embodiment mainly is made up of first beam column 1, second beam column 2, precast beam 3 and two positioners 4.Wherein first beam column 1 and second beam column 2 are provided with perpendicular to ground, and the two ends of precast beam 3 are held on respectively on first beam column 1 and second beam column 2.The upper end of the two sides that wherein first beam column 1 is relative with second beam column 2 is embedded with some nuts 13, and the bottom surface at the two ends of precast beam 3 is embedded with a nut 13 respectively.
Positioner 4 is made up of a locating rack 5 and an alignment pin 9.Locating rack 5 by a fixed head 6 and vertical fixing in these fixed head 6 upper limbs location-plate 7 constitute; The fit side of relative second beam columns 2 of first beam column 1 (or second beam column 2) (or first beam column 1) of said fixed head 6, and be fixed on two beam columns through bolt 12 and nut 13 bolts.When fixing the completion, location-plate 7 is the setting of horizontal-extending shape, offers the locating hole 8 of a circle on the location-plate 7.For strengthening the structural strength of location-plate 7, the both side edges of fixed head 6 and location-plate 7 is welded with the floor 14 perpendicular to the two setting.Alignment pin 9 comprises coaxial circular cone body that joins 10 and cylinder part 11, and the center of said cylinder part 11 end faces is provided with bolt 12, nut 13 bolts of this bolt 12 and said precast beam 3 bottom surfaces.The diameter of cylinder part 11 is identical with locating hole 8 diameters.
In conjunction with above-mentioned location structure, below be elaborated for the present embodiment operational method:
Before precast beam 3 lifting, two alignment pins 9 of bolt on precast beam 3 at first; Said locating rack 5 meanwhile is installed on first beam column 1 and second beam column 2.
Hoisting prefabricated afterwards beam 3 to first beam columns 1 and second beam column, 2 tops, and pass through instrument its horizontal levels of adjustment such as crane or Chain block so that the locating hole 8 on two locating racks 5 of two alignment pin 9 difference correspondences.When precast beam 3 is in the state of lifting; Moving on the horizontal direction only need overcome its inertia and get final product, and can be found out that by above-mentioned structure alignment pin 9 lower ends have a circular cone body 10; So when the summit of this circular cone body 10 is dropped in the scope of locating hole 8; When precast beam 3 fell, the side of circular cone body 10 contacted with locating hole 8 and slides, and got in the locating hole 8 and matched in clearance until cylinder part 11.Because cylinder 11 shapes size and locating hole 8 match, accomplish so can be considered precast beam 3 location.The size of above-mentioned circular cone body 10, cylinder part 11 and locating hole 8; Should decide according to the mobile accuracy that crane or Chain block etc. is used for instrument that precast beam 3 moves horizontally and can provides; When its precision was low, the summit that locating hole 8 bore size should increase to ensure circular cone body 10 can fall within it.
Fall said precast beam 3 so that it is held on the upper end of first beam column 1 and second beam column 2 through the operation crane afterwards, and two alignment pins 9 are plugged in respectively in two locating holes 8, this moment, accomplished the location.
Disassemble positioner 4 at last, to be used for the installing and locating operation of next precast beam.
Embodiment 2:
Referring to accompanying drawing 4, described location structure of present embodiment and embodiment 1 are roughly the same.Different is only to adopt a positioner 4, has only simultaneously to be embedded with some nuts 13 on first beam column 1, has only the bottom surface of an end of relative first beam column 1 to be embedded with nut 13 on the precast beam 3, is used for mounting and positioning device 4.Adopt this kind location structure, precast beam 3 one ends adopt alignment pin 9 to locate, and the other end is then the same with prior art, and with the precast beam position that falls, promptly the precast beam 3 back end in position that falls is located and other end no-fix with the position that roughly coincide.When operation, compare with the step of embodiment 1, then increased following steps: precast beam 3 falls behind the position, is rotating shaft with alignment pin 9, carries out the position of trickle adjustment precast beam 3 other ends through instruments such as jack.The relative embodiment 1 of this kind structure has increased the step of construction, has increased the cycle of construction.The purpose that is provided with so mainly be precast beam 3 when lifting, if equipment precision is not high, be difficult to accomplish two alignment pins 9 corresponding locating hole 8 simultaneously according to location structure among the embodiment 1, the position of only controlling a side alignment pin 3 is then relatively easy.

Claims (10)

1. a high accuracy precast beam localization method relates to two beam columns and a precast beam, it is characterized in that comprising the steps:
At least certain position pin is installed on the bottom surface of precast beam end; One locating rack is installed on the side of relative another beam column of at least one beam column, and said locating rack has the location-plate that a horizontal-extending is provided with, and offers a locating hole on the said location-plate;
The extremely said beam column of hoisting prefabricated beam top, and adjust its horizontal level so that the corresponding said locating hole of said alignment pin;
Fall said precast beam so that it is held on said beam column upper end, and alignment pin is plugged in the said locating hole.
2. a kind of high accuracy precast beam localization method as claimed in claim 1; The quantity that it is characterized in that said alignment pin and locating rack is one, and said method comprises the steps: that also with this alignment pin be the relative position that the said precast beam other end and beam column are adjusted in rotating shaft.
3. a kind of high accuracy precast beam localization method as claimed in claim 1; The quantity that it is characterized in that said alignment pin and locating rack is two; Described two locating racks are located at two sides that beam column is relative respectively, and described two alignment pins are located at the bottom surface at precast beam both ends respectively.
4. like claim 1,2 or 3 described a kind of high accuracy precast beam localization methods, it is characterized in that said method comprises the steps: to dismantle said locating rack and alignment pin after accomplish said precast beam location.
5. like claim 1,2 or 3 described a kind of high accuracy precast beam localization methods; It is characterized in that: said alignment pin comprises coaxial circular cone body and the cylinder part that joins; Said cylinder part end face and said precast beam bottom surface bolt; Said locating hole is a circular hole, and its diameter is identical with said cylinder part diameter.
6. high accuracy precast beam location structure; Comprise two beam columns and a precast beam; It is characterized in that: also comprise the positioner that at least one is made up of locating rack and alignment pin; Said locating rack is detachable to be fixed in the beam column side of another beam column relatively, and has the location-plate that a horizontal-extending is provided with, and offers a locating hole on the said location-plate; Said alignment pin is detachable to be fixed on the bottom surface of said precast beam end, and can be plugged in the said locating hole/from said locating hole, extract out.
7. a kind of high accuracy precast beam location structure as claimed in claim 6; It is characterized in that: the quantity of said location structure is two; Locating rack in said two location structures is located at two sides that beam column is relative respectively, and the alignment pin in said two location structures is located at the bottom surface at precast beam both ends respectively.
8. like claim 6 or 7 described a kind of high accuracy precast beam location structures, it is characterized in that: said locating rack comprises a fixed head, said fixed head fit said beam column side and bolt, and said location-plate vertical fixing is in this fixed head upper limb.
9. a kind of high accuracy precast beam location structure as claimed in claim 8, it is characterized in that: the both side edges of said fixed head and location-plate is provided with floor.
10. a kind of high accuracy precast beam location structure as claimed in claim 6; It is characterized in that: be embedded with at least one on the said precast beam and be used for the nut with said alignment pin bolt, be embedded with some nuts that are used for said locating rack bolt at least one beam column.
CN 201110324503 2011-10-24 2011-10-24 High-precision method and structure for positioning high-precision precast beam Active CN102392540B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912993A (en) * 2012-11-16 2013-02-06 孟凡林 Method and die for guaranteeing mounting precision of prefabricated concrete structural member
CN105696801A (en) * 2016-02-02 2016-06-22 江苏建筑职业技术学院 Accurate positioning device for hoisting of prefabricated part
CN109629452A (en) * 2019-01-30 2019-04-16 中国冶集团有限公司 Precast beam positioning device and its method
CN112627545A (en) * 2020-12-17 2021-04-09 李伯明 Building frame installation process for box type building

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08218497A (en) * 1995-02-14 1996-08-27 Kanegafuchi Chem Ind Co Ltd Connecting metal of column and horizontal member
JP2000170266A (en) * 1998-12-07 2000-06-20 Dantani Plywood Co Ltd Column base metallic material for metal fitting construction method and building metal fitting construction method using it
JP2006312819A (en) * 2005-05-06 2006-11-16 Sumitomo Forestry Co Ltd Column and beam joint fixture and column and beam joint structure
CN101413249A (en) * 2008-12-01 2009-04-22 中铁大桥局股份有限公司 Method for positioning and mounting large-scale bridge support
CN201738248U (en) * 2010-08-23 2011-02-09 重庆城建控股(集团)有限责任公司 Embedded part installation device for bridge bearing
CN202265778U (en) * 2011-10-24 2012-06-06 上海市第二市政工程有限公司 High-precision precast-beam positioning structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08218497A (en) * 1995-02-14 1996-08-27 Kanegafuchi Chem Ind Co Ltd Connecting metal of column and horizontal member
JP2000170266A (en) * 1998-12-07 2000-06-20 Dantani Plywood Co Ltd Column base metallic material for metal fitting construction method and building metal fitting construction method using it
JP2006312819A (en) * 2005-05-06 2006-11-16 Sumitomo Forestry Co Ltd Column and beam joint fixture and column and beam joint structure
CN101413249A (en) * 2008-12-01 2009-04-22 中铁大桥局股份有限公司 Method for positioning and mounting large-scale bridge support
CN201738248U (en) * 2010-08-23 2011-02-09 重庆城建控股(集团)有限责任公司 Embedded part installation device for bridge bearing
CN202265778U (en) * 2011-10-24 2012-06-06 上海市第二市政工程有限公司 High-precision precast-beam positioning structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102912993A (en) * 2012-11-16 2013-02-06 孟凡林 Method and die for guaranteeing mounting precision of prefabricated concrete structural member
CN102912993B (en) * 2012-11-16 2015-05-20 孟凡林 Method and die for guaranteeing mounting precision of prefabricated concrete structural member
CN105696801A (en) * 2016-02-02 2016-06-22 江苏建筑职业技术学院 Accurate positioning device for hoisting of prefabricated part
CN109629452A (en) * 2019-01-30 2019-04-16 中国冶集团有限公司 Precast beam positioning device and its method
CN112627545A (en) * 2020-12-17 2021-04-09 李伯明 Building frame installation process for box type building

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Address after: 200232 Xuhui District, Liuzhou Wu Road, Lane No. 13, No. 3, No.

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