CN113530348A - Plug-in column base inhaul cable bearing installation positioning method - Google Patents
Plug-in column base inhaul cable bearing installation positioning method Download PDFInfo
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- CN113530348A CN113530348A CN202110984580.2A CN202110984580A CN113530348A CN 113530348 A CN113530348 A CN 113530348A CN 202110984580 A CN202110984580 A CN 202110984580A CN 113530348 A CN113530348 A CN 113530348A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/347—Arrangements for setting poles in the ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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Abstract
The invention discloses a bearing installation positioning method of an insertion type column base stay cable, wherein an insertion type column base is lifted above a cup opening of a concrete cup opening foundation, then one ends of two stay cables respectively and correspondingly penetrate through two first through holes, a third through hole and a second through hole, and the other ends of the two stay cables are correspondingly anchored on the two first through holes; the plug-in column base falls into the concrete cup foundation, one ends of the two pull cables are synchronously tensioned, and when the distance from the bottom of the plug-in column base to the cup bottom reaches the designed elevation, one ends of the two pull cables are correspondingly anchored on the two second through holes; and controlling the four jacks to adjust the center line of the plug-in column base to coincide with the center line of the concrete cup foundation, and then pouring concrete into the cup. The installation positioning method has the advantages of simple structure, reasonable design, reliable force transmission, high installation precision, small influence of meteorological environment, realization of efficient installation, shortened construction period, greatly reduced investment of hoisting equipment and better economy.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a bearing installation positioning method for an insertion type column base stay cable.
Background
The concrete cup foundation plug-in column base is used as one of rigid connection column base forms of multi-story high-rise structure frame columns and plants, and is widely applied to actual engineering. However, in the construction process, the installation and positioning of the plug-in column base are mainly completed by the lifting of hoisting equipment, the traction of a cable rope and the embedding of a cushion block in a concrete cup foundation, so that the installation precision is poor and the efficiency is low. Especially when being influenced by external wind power, the plug-in column base in a suspension state has difficult guarantee of installation precision, and the construction period is seriously influenced. Meanwhile, the hoisting equipment occupies a long time, and the construction cost is obviously increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the plug-in type column base stay cable bearing mounting and positioning method which has the advantages of simple structure, reasonable design, reliable force transmission, high mounting precision, small influence of weather environment, realization of efficient mounting, shortened construction period, great reduction of investment of hoisting equipment and better economy.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a load-bearing mounting and positioning method for an insertion type column base inhaul cable comprises the following steps:
at least four jacks are uniformly distributed on the top of a cup opening of a concrete cup opening foundation along the circumferential direction, two first through holes penetrating into the cup opening are formed in the outer cup wall on one side of the concrete cup opening foundation, two second through holes penetrating into the cup opening are formed in the outer cup wall on the other side of the concrete cup opening foundation, the two first through holes are located on the middle upper portion of the concrete cup opening foundation and are symmetrically arranged relative to the vertical central plane of the concrete cup opening foundation, and the two first through holes and the two second through holes are arranged in a one-to-one opposite mode;
two third through holes are formed in one side of the plug-in column base in a penetrating mode towards the other side, the two third through holes are located close to the bottom of the plug-in column base and are symmetrically arranged relative to the vertical central plane of the plug-in column base, and the distance between the two first through holes is equal to the distance between the two third through holes;
hoisting the inserted column base to the position above a cup opening of a concrete cup opening foundation, then respectively and correspondingly penetrating one ends of the two stay cables through the two first through holes, the third through hole and the second through hole, and correspondingly anchoring the other ends of the two stay cables on the two first through holes;
the plug-in column base falls into the concrete cup foundation, one ends of the two pull cables are synchronously tensioned, and when the distance from the bottom of the plug-in column base to the cup bottom reaches the designed elevation, one ends of the two pull cables are correspondingly anchored on the two second through holes;
and controlling the four jacks to adjust the center line of the plug-in column base to coincide with the center line of the concrete cup foundation, and then pouring concrete into the cup.
Furthermore, anchorage devices are adopted between the two inhaul cables and the corresponding first through holes and second through holes for anchoring.
Furthermore, at least four embedded parts are uniformly distributed and embedded on the top of the concrete cup foundation along the circumferential direction, each embedded part is correspondingly connected with one reaction frame, and each jack correspondingly supports against one reaction frame.
Further, the plug-in column base falls into the concrete cup foundation, and after each stay cable is in an inverted hat shape, one end of each stay cable is synchronously tensioned.
Further, the mode of seting up of first through-hole and second through-hole on the concrete cup mouth basis includes: and reserving the first through hole and the second through hole in advance when the concrete cup foundation is poured, or drilling the first through hole and the second through hole after the concrete cup foundation is poured and molded.
Further, the mode of seting up the third through-hole on the bayonet column base includes: and reserving the third through hole in advance during pouring of the plug-in column base, or drilling the third through hole after the plug-in column base is molded by pouring.
Further, the distance from the center line of the two first through holes to the top of the concrete cup foundation is 1/3-1/4 of the height of the concrete cup foundation.
Further, the distance from the center line of the two third through holes to the bottom of the plug-in column base is 1/3-1/4 of the height of the concrete cup foundation.
Compared with the prior art, the invention has at least the following beneficial effects: the invention provides a bearing installation and positioning method of an inserted column base stay cable, wherein two first through holes penetrating into a cup opening are formed in an outer cup wall on one side of a concrete cup opening foundation, two second through holes penetrating into the cup opening are formed in an outer cup wall on the other side of the concrete cup opening foundation, the two first through holes are located in the middle upper portion of the concrete cup opening foundation and are symmetrically arranged relative to the vertical central plane of the concrete cup opening foundation, the two first through holes and the two second through holes are formed in a one-to-one opposite mode, and the cup wall of the concrete cup opening foundation is used as an anchor end of the stay cable. Two third through holes are formed in one side of the plug-in column base in a penetrating mode towards the other side, the two third through holes are located close to the bottom of the plug-in column base and are symmetrically arranged relative to the vertical central plane of the plug-in column base, the distance between the two first through holes is equal to the distance between the two third through holes, a stay cable penetrates through the plug-in column base, and vertical deflection of the plug-in column base is improved through synchronous tensioning; meanwhile, at least four jacks are uniformly distributed at the top of the concrete cup foundation along the circumferential direction, and the jacks are adopted to adjust horizontal displacement. Therefore, the installation precision and the installation efficiency of the plug-in column base are obviously improved, and the occupied time of the hoisting equipment is reduced. The bearing mounting and positioning method for the plug-in column foot guy cable has the advantages of simple structure, reasonable design, reliable force transmission, high mounting precision, small influence by meteorological environment, realization of efficient mounting, shortening of construction period, great reduction of investment of hoisting equipment and better economy.
Furthermore, at least four embedded parts are uniformly distributed and embedded on the top of the concrete cup foundation along the circumferential direction, each embedded part is correspondingly connected with one reaction frame, each jack is correspondingly abutted against one reaction frame, and the embedded parts and the reaction frames are utilized, so that the reliability of horizontal displacement adjustment of the plug-in column base is effectively ensured.
Furthermore, after each cable is in an inverted hat shape, one end of each cable is synchronously tensioned, so that the tensioning effect is better.
Furthermore, the distance from the central line of the two first through holes to the top of the concrete cup foundation is 1/3-1/4 of the height of the concrete cup foundation, and the distance from the central line of the two third through holes to the bottom of the plug-in column base is 1/3-1/4 of the height of the concrete cup foundation. Design the back in guaranteeing that bayonet column base whereabouts to concrete cup mouth basis that can be better like this, every cable is inversion ceremony hat shape.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a load-bearing mounting and positioning method of an insertion type column base stay cable.
In the figure: 1-concrete cup foundation; 2-a first via; 3-a second via; 4-plug-in pedestal; 5-a third via; 6-a jack; 7-a guy cable; 8-an anchorage device; 9-embedded parts; 10-reaction frame.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, as a specific embodiment of the present invention, a method for installing and positioning a load bearing of an insertion column shoe stay specifically includes the following steps:
s1, at least four jacks 6 are evenly distributed on the top of the cup mouth of the concrete cup mouth foundation 1 along the circumferential direction and used for adjusting the horizontal displacement of the plug-in column base 4.
Preferably, the installation and fixation mode of each jack 6 is as follows: at least four embedded parts 9 are uniformly distributed and embedded on the top of the cup opening of the concrete cup opening foundation 1 along the circumferential direction, each embedded part 9 is correspondingly connected with one reaction frame 10, and the bottom of each jack 6 correspondingly abuts against one reaction frame 10, namely, the jack 6 is supported on the reaction frame 10. In this embodiment, four jacks 6 are uniformly distributed at the top of the cup mouth of the concrete cup mouth foundation 1 along the circumferential direction, and the four jacks 6 are orthogonally and symmetrically arranged.
The outer cup wall of one side of the concrete cup-mouth foundation 1 is provided with two first through holes 2 penetrating into the cup-mouth, the outer cup wall of the other side is provided with two second through holes 3 penetrating into the cup-mouth, the two first through holes 2 are positioned at the middle upper part of the concrete cup-mouth foundation 1 and are symmetrically arranged relative to the vertical central plane of the concrete cup-mouth foundation 1, and the two first through holes 2 and the two second through holes 3 are arranged in a one-to-one opposite mode; that is, the center line of one first through hole 2 is on the same straight line as the center line of one second through hole 3, and the center line of the other first through hole 2 is on the same straight line as the center line of the other second through hole 3.
Preferably, the distance between the central lines of the two first through holes 2 and the top of the concrete cup foundation 1 is 1/3-1/4 of the height of the concrete cup foundation 1.
Preferably, the way of opening the first through hole 2 and the second through hole 3 on the concrete cup foundation 1 includes: the first through hole 2 and the second through hole 3 are reserved in advance when the concrete cup foundation 1 is poured, or the first through hole 2 and the second through hole 3 are drilled after the concrete cup foundation 1 is poured and molded.
S2, two third through holes 5 are formed in one side of the plug-in column base 4 in a penetrating mode towards the other side, the two third through holes 5 are located close to the bottom of the plug-in column base 4 and are symmetrically arranged relative to the vertical center plane of the plug-in column base 4, and the distance between the two first through holes 2 is equal to the distance between the two third through holes 5; that is, when the distance between the two first through holes 2 is equal to the distance between the two third through holes 5, it is possible to ensure that the cable 7 is positioned in the same plane after passing through.
Preferably, the distance between the central lines of the two third through holes 5 and the bottom of the inserted column base 4 is 1/3-1/4 of the height of the concrete cup foundation 1.
Preferably, the opening mode of the third through hole 5 on the plug-in pedestal 4 comprises: the third through hole 5 is reserved in advance when the plug-in pedestal 4 is poured, or the third through hole 5 is drilled after the plug-in pedestal 4 is poured and molded.
S3, hoisting the plug-in column base 4 to the position above the cup mouth of the concrete cup mouth foundation 1, sequentially and correspondingly penetrating one ends of two stay cables 7 through the two first through holes 2, the third through hole 5 and the second through hole 3 respectively, correspondingly anchoring the other ends of the two stay cables 7 on the two first through holes 2, and particularly, anchoring the stay cables 7 by using an anchorage device 8.
S4, the plug-in column base 4 is dropped into the concrete cup foundation 1, one ends of the two pull cables 7 are synchronously tensioned, vertical displacement of the plug-in column base 4 in the vertical direction is achieved, when the distance from the bottom of the plug-in column base 4 to the cup bottom reaches the designed elevation, one ends of the two pull cables 7 are correspondingly anchored on the two second through holes 3, and similarly, the pull cables 7 are anchored by the aid of the anchorage device 8.
Preferably, after each cable 7 is in an inverted top-hat shape, one end of each cable 7 is synchronously tensioned.
And S5, controlling the four jacks 6 to adjust the center line of the plug-in column base 4 to coincide with the center line of the concrete cup foundation 1, and then pouring concrete into the cup.
In one embodiment, the plug-in column base can be a steel structure I-shaped column, a box-shaped column or a concrete rectangular column.
In one embodiment, after each guy cable is in an inverted top-hat shape, the lofting size of the top-hat shape is determined by the thickness of a cup wall, the section width of an inserted column base, the height of a reserved hole (namely a first through hole, a second through hole and a third through hole) and the structural length of the end part of an anchorage device, and the rise of the top-hat shape can be adjusted by stretching the guy cable; the diameter of the stay cable is determined by the dead weight calculation of the inserted column base.
In one embodiment, when the stay cable is synchronously tensioned, the tensioning force is determined by calculating the dead weight of the inserted column base, and the most unfavorable tensioning force in different configurations is taken.
In one embodiment, the diameter of a preformed hole (a first through hole and a second through hole) on the wall of the concrete cup opening foundation cup is 1.5 times of the diameter of the inhaul cable, the end of the anchorage device is a tapered hole, the end of the non-anchorage device is a semi-tapered hole, and the size of the tapered hole is matched with the selected anchorage device; the distance between the center line of the preformed hole in the cup wall of the concrete cup base and the top surface of the cup is 1/3-1/4 of the height of the concrete cup base.
In one embodiment, the preformed hole (third through hole) of the plug-in column base is a horizontal long round hole, and the length and the width of the long round hole are respectively 4 times and 1.5 times of the diameter of the inhaul cable; the distance from the center line of the preformed hole of the plug-in column base to the bottom surface of the cup opening is 1/3-1/4 of the height of the concrete cup opening base.
In one embodiment, the reaction frame is welded on the embedded part on the top surface of the cup mouth, and the distance from the reaction frame to the outer skin of the inserted column base is determined by the height and the measuring range of the selected jack; the reaction frame adopts a T-shaped section, can be welded or hot rolled, the width of the flange and the length of the member are consistent with the size of the base of the jack, and the height of the web plate is not less than 150 mm; the reaction frame is connected with the embedded part through welding lines, and the size of a welding leg is not smaller than 6 mm.
In one embodiment, the positioning of the embedded part is determined according to the specification and the position of the reaction frame, and the calculation is carried out according to the shearing and bending actions; the length and width of the embedded part anchor plate are not less than the height of a web plate and the width of a flange of the T-shaped section of the reaction frame, and the distance from the edge of the embedded part anchor plate to the outer edge of the cup wall is not less than 50 mm; t-shaped welding seams are adopted for the straight anchor bars and the anchor plates of the embedded parts.
In the actual construction process, the section specification of the stay cable is calculated through the dead weight of the inserted column base and the arrangement form of the inverted hat-shaped stay cable; concrete cup foundation: stay cable through holes (a first through hole and a second through hole) are reserved in the cup wall, and a reaction frame embedded part is arranged on the top surface of the cup opening to complete pouring of the cup opening foundation; inserting type column base: and reserving a stay cable perforation (third perforation) in the length direction of the column base section to complete the arrangement of the insertion type column base preformed hole.
During actual installation, firstly hoisting the inserted column base to the top surface of the cup opening by using hoisting equipment, carrying out cable penetrating installation, and then lowering the inserted column base to the bottom; and secondly, synchronously tensioning the inhaul cable, and locking by using an anchorage device after the inserted column base reaches the designed elevation. And finally, adjusting the verticality of the column body by means of hoisting equipment, and meanwhile, installing a jack on the top surface of the cup opening to correct the horizontal direction. And finishing the installation and the positioning of the plug-in column base, and then performing secondary pouring of the cup mouth concrete.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A load-bearing mounting and positioning method for an insertion type column base inhaul cable is characterized by comprising the following steps:
at least four jacks (6) are uniformly distributed at the top of a cup opening of a concrete cup opening foundation (1) along the circumferential direction, two first through holes (2) penetrating into the cup opening are formed in the outer cup wall on one side of the concrete cup opening foundation (1), two second through holes (3) penetrating into the cup opening are formed in the outer cup wall on the other side of the concrete cup opening foundation, the two first through holes (2) are located on the middle upper portion of the concrete cup opening foundation (1) and are symmetrically arranged relative to the vertical central plane of the concrete cup opening foundation (1), and the two first through holes (2) and the two second through holes (3) are oppositely arranged one by one;
two third through holes (5) are formed in one side of the plug-in column base (4) in a penetrating mode towards the other side, the two third through holes (5) are located close to the bottom of the plug-in column base (4) and are symmetrically arranged relative to the vertical center plane of the plug-in column base (4), and the distance between the two first through holes (2) is equal to the distance between the two third through holes (5);
hoisting the inserted column base (4) to the position above a cup opening of the concrete cup opening foundation (1), then respectively and correspondingly penetrating one ends of two stay cables (7) through the two first through holes (2), the third through hole (5) and the second through hole (3), and correspondingly anchoring the other ends of the two stay cables (7) on the two first through holes (2);
the plug-in column base (4) falls into the concrete cup foundation (1), one ends of the two stay cables (7) are synchronously tensioned, and when the distance from the bottom of the plug-in column base (4) to the cup bottom reaches a designed elevation, one ends of the two stay cables (7) are correspondingly anchored on the two second through holes (3);
and after the four jacks (6) are controlled to adjust the center line of the plug-in column base (4) to coincide with the center line of the concrete cup opening foundation (1), concrete is poured into the cup opening.
2. An insertion type column base guy cable bearing installation positioning method according to claim 1, characterized in that anchorage devices (8) are adopted for anchoring between two guy cables (7) and the corresponding first through hole (2) and second through hole (3).
3. The load-bearing installation and positioning method of the plug-in column foot guy cable according to claim 1, characterized in that at least four embedded parts (9) are uniformly embedded on the top of the concrete cup foundation (1) along the circumferential direction, each embedded part (9) is correspondingly connected with a reaction frame (10), and each jack (6) is correspondingly abutted against one reaction frame (10).
4. The load-bearing installation and positioning method of the plug-in column base guy cable according to claim 1, characterized in that the plug-in column base (4) is dropped into the concrete cup foundation (1), and after each guy cable (7) is in the shape of an inverted top-hat, one end of two guy cables (7) is synchronously tensioned.
5. The load-bearing mounting and positioning method for the plug-in column base inhaul cable according to claim 1, wherein the opening mode of the first through hole (2) and the second through hole (3) on the concrete cup foundation (1) comprises the following steps: the first through hole (2) and the second through hole (3) are reserved in advance when the concrete cup foundation (1) is poured, or the first through hole (2) and the second through hole (3) are drilled after the concrete cup foundation (1) is poured and molded.
6. The load-bearing mounting and positioning method for the plug-in column base inhaul cable according to claim 1, wherein the third through hole (5) on the plug-in column base (4) is formed in a mode that: and the third through hole (5) is reserved in advance when the plug-in column base (4) is poured, or the third through hole (5) is drilled after the plug-in column base (4) is poured and molded.
7. The load-bearing installation and positioning method for the plug-in column foot stay cable according to claim 1, characterized in that the distance from the central line of the two first through holes (2) to the top of the concrete cup foundation (1) is 1/3-1/4 of the height of the concrete cup foundation (1).
8. The load-bearing installation and positioning method for the inserted column base stay cable according to claim 1, characterized in that the distance from the central line of the two third through holes (5) to the bottom of the inserted column base (4) is 1/3-1/4 of the height of the concrete cup foundation (1).
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| CN202110984580.2A CN113530348B (en) | 2021-08-25 | 2021-08-25 | Plug-in column base inhaul cable bearing installation positioning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110984580.2A CN113530348B (en) | 2021-08-25 | 2021-08-25 | Plug-in column base inhaul cable bearing installation positioning method |
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| CN113530348B CN113530348B (en) | 2022-12-20 |
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| DE3145882A1 (en) * | 1981-11-19 | 1983-06-09 | Eskilstuna Invest AB, 63220 Eskilstuna | ANCHORING FOR A POLE, ESPECIALLY STEEL PIPE POLE, ROD, BRIDGE PILLAR OR THE LIKE. WITH AN ANCHORAGE SECTION THAT MAY BE INSERTED |
| CN203080546U (en) * | 2013-02-06 | 2013-07-24 | 陕西建工集团机械施工有限公司 | Prefabricated column concrete cup opening base double-layer limiting fixed structure |
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| CN108952008A (en) * | 2018-08-24 | 2018-12-07 | 杭州江润科技有限公司 | Insert-type steel pipe concrete column and construction method |
| CN109610734A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of reinforced concrete frame column with runback bit function |
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2021
- 2021-08-25 CN CN202110984580.2A patent/CN113530348B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3145882A1 (en) * | 1981-11-19 | 1983-06-09 | Eskilstuna Invest AB, 63220 Eskilstuna | ANCHORING FOR A POLE, ESPECIALLY STEEL PIPE POLE, ROD, BRIDGE PILLAR OR THE LIKE. WITH AN ANCHORAGE SECTION THAT MAY BE INSERTED |
| CN203080546U (en) * | 2013-02-06 | 2013-07-24 | 陕西建工集团机械施工有限公司 | Prefabricated column concrete cup opening base double-layer limiting fixed structure |
| CN104294753A (en) * | 2014-09-06 | 2015-01-21 | 安徽省交通建设有限责任公司 | Bridge prefabricated hollow pier stud connecting structure and construction method thereof |
| CN204876779U (en) * | 2015-07-31 | 2015-12-16 | 国家电网公司 | Slope shaft tower orthotic devices |
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| CN109610734A (en) * | 2018-12-13 | 2019-04-12 | 长安大学 | A kind of reinforced concrete frame column with runback bit function |
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| CN113530348B (en) | 2022-12-20 |
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