CN106759280B - A kind of extra-long foundation pile foundation joint bar positioning construction method - Google Patents

A kind of extra-long foundation pile foundation joint bar positioning construction method Download PDF

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Publication number
CN106759280B
CN106759280B CN201611200857.3A CN201611200857A CN106759280B CN 106759280 B CN106759280 B CN 106759280B CN 201611200857 A CN201611200857 A CN 201611200857A CN 106759280 B CN106759280 B CN 106759280B
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China
Prior art keywords
joint bar
fixed
fixing bracket
joint
positioning
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CN201611200857.3A
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CN106759280A (en
Inventor
戚二舟
顾奎
任智
梁军
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04Guide devices; Guide frames

Abstract

The invention discloses a kind of extra-long foundation pile foundation joint bar positioning construction methods, belong to foundation pile joint bar construction field in architectural engineering, including determining that joint bar length and quantity → joint bar fixing bracket makes → install joint bar fixing bracket → fixation joint bar fixing bracket → measurement and positioning joint bar column center line → joint bar construction → joint bar absolute altitude control → joint bar and fixes → joint bar repetition measurement, the construction method, it increases fixing bracket and surrounds support bracket fastened making, installation and fixed work, play the role of positioning construction in actual job, locating effect is apparent, improve the quality of work progress, efficiency and safety.

Description

A kind of extra-long foundation pile foundation joint bar positioning construction method
Technical field
The invention belongs to foundation pile joint bar construction field in architectural engineering more particularly to a kind of extra-long foundation pile foundation joint bars Positioning construction method.
Background technology
With the development of building trade industry, the improvement of building function, the raising of building safety, to structure construction requirement It is higher and higher, in general, general structure using pile foundation as primary load bearing structure load, using pile foundation, cushion cap as force transferring structure body, is being held Progress joint bar is convenient, fast inside platform, and conventional foundation stake joint bar work progress is not high to positioning requirements.
But when engineering is related to extra-long foundation stake, cushion cap is larger, and superstructure is essentially large span, structural section itself It is larger to security requirement height.Design requirement is to carrying out joint bar in pile foundation, since joint bar depth is deep, bar diameter is big, and is spiral shell Line connects, and difficulty of construction is big, especially high to positioning requirements, and the positioning construction of this extra-long foundation stake joint bar is particularly important, Not yet effective solution during practice of construction.
Invention content
The technical problem to be solved by the present invention is to:A kind of extra-long foundation pile foundation joint bar positioning construction method is provided, is carried Quality, efficiency and the safety of high work progress.
In order to solve the above-mentioned technical problem, the invention discloses a kind of extra-long foundation pile foundation joint bar positioning construction method, It constructs according to the following steps:
Step 1: determining joint bar length and quantity
A1. joint bar stake is needed to be counted for scene;
A2. joint bar depth is counted according to foundation pile top mark height;
A3. foundation pile is numbered, determines the length and quantity for needing to be inserted into joint bar;
Step 2: joint bar fixing bracket makes
Require to make corresponding joint bar fixing bracket according to joint bar, joint bar fixing bracket include two base crossbeams, two Pedestal longeron, fixed pin and square set, the length of the base crossbeam are more than the length of pedestal longeron, the base crossbeam and Pedestal longeron be angle steel and bottom edge inwardly, described two pedestal longerons are symmetrically fixed on two base crossbeams and with two A square cavity is collectively constituted in the middle part of a base crossbeam;The base crossbeam both ends are equipped with jack, the fixed pin adaptation In jack, the square set is square frame structure, and bottom of the square set per one side is welded with supporting rod, institute It states two base crossbeams and two pedestal longeron bottom edge upper surface middle parts is fixedly connected with sleeve, the supporting rod adapts to cover Cylinder;
Step 3: installation joint bar fixing bracket
After joint bar fixing bracket makes, joint bar fixing bracket is put into and waits for joint bar foundation pile base mouth central upper portion portion Position, and to joint bar fixing bracket leveling.
Step 4: fixed joint bar fixing bracket
It is fixed by four jacks using fixed pin, fixed pin is completely fixed;
Step 5: measurement and positioning joint bar column center line
S1. the center line for corresponding to column to foundation pile before joint bar carries out unwrapping wire, will corresponding column cross centre line by measuring It is identified on joint bar fixing bracket;
S2. cross centre line is connected with cotton rope, crosspoint is corresponding column center;
S3. fixing bracket be placed above two it is parallel be fixed temporarily cross bar and be fixed with tied silk, be fixed temporarily The fixed stirrup of installation positioning on cross bar is used in combination tied silk by the fixed stirrup binding of positioning on being fixed temporarily cross bar, after the completion of fixed The position of column joint bar is identified on the fixed stirrup of positioning according to column joint bar position.
Step 6: joint bar is constructed
After joint bar fixing bracket installs, joint bar construction is completed before casting concrete initial set:According to fixed stirrup The position of upper mark carries out joint bar;
Step 7: joint bar absolute altitude controls
In joint bar work progress, joint bar is carried out using stirrup display location is fixed temporarily, it is true according to statistics pile foundation depth Fixed insertion depth is inserted into after depth reaches requirement and is bound on being fixed temporarily stirrup.
Step 8: joint bar is fixed
It waits for carrying out the measurement of joint bar verticality after joint bar is fixed temporarily, and stirrup is installed at one meter of top place and is tied up It pricks and fixes.
Step 9: joint bar repetition measurement
After the completion of pile foundation joint bar, squareness measurement, and a collection of stake in the construction process are carried out with regard to each reinforcing bar of corresponding column The straightness of joint bar is measured using instrument after the completion of joint bar, the measurement to integral central, absolute altitude, it is ensured that joint bar is whole accurate True property, makes precision reach requirement.
Preferably, two base crossbeams and two pedestal longerons are bolted company on joint bar fixing bracket in step 2 It connects.
Preferably, in the step 2 second sleeve is additionally provided on the support bracket fastened square set of joint bar.
Preferably, in the step 2 two base crossbeams and two pedestal longerons by L75mm × 5mm equal leg angle systems It forms, the fixed pin is the screw-thread steel of 25mm × 400mm, and the supporting rod is 25mm × 200mm screw-thread steels;Described second A diameter of 20mm~30mm of sleeve.
Compared with prior art, the present invention can obtain following technique effect:
Basic joint bar positioning construction method includes determining that joint bar length and quantity → joint bar fixing bracket make in the present invention → installation joint bar fixing bracket → fixation joint bar fixing bracket → measurement and positioning joint bar column center line → joint bar construction → joint bar mark High control → fixation → joint bar repetition measurement, the construction method, increase fixing bracket and around it is support bracket fastened make, installation and Positioning construction is played the role of in fixed work in actual job, and locating effect is apparent, improves quality, the effect of work progress Rate and safety.
Further, two base crossbeams and two pedestal longerons are bolted company on joint bar fixing bracket in step 2 It connects, the program can effectively fix joint bar fixing bracket, while there are surpluses for follow-up leveling, being capable of effective guarantee work progress Quality and efficiency.
Further, second sleeve is additionally provided in step 2 on the support bracket fastened square set of joint bar, the program can have It is removed conducive to the support bracket fastened installation of joint bar and later stage, improves construction efficiency.
Further, two base crossbeams and two pedestal longerons are made by L75mm × 5mm equal leg angles, institute The screw-thread steel that fixed pin is 25mm × 400mm is stated, the supporting rod is 25mm × 200mm screw-thread steels;The second sleeve it is straight Diameter is 20mm~30mm, and above scheme is preferred embodiment, equal leg angle convenient material drawing, low manufacture cost, fixed pin and support Bar is easily made, and second sleeve diameter range is further conducive to the support bracket fastened installation of joint bar and dismounting, improves construction matter Amount, efficiency and safety.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, those of ordinary skill in the art are come It says, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is joint bar fixing bracket installation effect front view.
Fig. 2 is joint bar fixing bracket installation effect vertical view.
Fig. 3 is joint bar fixing bracket front view.
Fig. 4 is joint bar fixing bracket vertical view.
Fig. 5 is joint bar fixing bracket left view.
Wherein:1. base crossbeam, 2. pedestal longerons, 3. square sets, 4. fixed pins, 5. supporting rods, 6. are fixed temporarily cross Bar, 7. fix stirrup, and 8. bolts, 9. sleeves, 10. second sleeves, 11. jacks, 12. Horizon absolute altitudes, 13. rotary digging stake holes, 14. insert Muscle, 15. reinforcing bars.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment is further described the application principle of the present invention.
Embodiment one
As shown in Fig. 1 to 5, a kind of extra-long foundation pile foundation joint bar positioning construction method, it is desirable that rotary digging stake holes 13 perpendicular to Horizon absolute altitude 12, joint bar 14 are parallel to rotary digging stake holes 13 and are inserted into inside a reinforcing bar 15, construct according to the following steps:
Step 1: determining joint bar length and quantity
A1. joint bar stake is needed to be counted for scene;
A2. joint bar depth is counted according to foundation pile top mark height;
A3. foundation pile is numbered, determines the length and quantity for needing to be inserted into joint bar;
Step 2: joint bar fixing bracket makes
It is required to make corresponding joint bar fixing bracket according to joint bar, joint bar fixing bracket includes two base crossbeams 1, two Pedestal longeron 2, fixed pin 4 and square set 3, the length of the base crossbeam 1 are more than the length of pedestal longeron 2, the pedestal Crossbeam 1 and pedestal longeron 2 be angle steel and bottom edge inwardly, described two pedestal longerons 2 are symmetrically fixed in two base crossbeams 1 On and with two base crossbeams, 1 middle part collectively constitute a square cavity;1 both ends of the base crossbeam are equipped with jack 11, The fixed pin 4 adapts to jack 11, and the square set 3 is square frame structure, bottom of the square set 3 per one side Portion is welded with supporting rod 5, and described two base crossbeams 1 and two 2 bottom edge upper surface middle parts of pedestal longeron are fixedly connected with set Cylinder 9, the supporting rod 5 adapts to sleeve 9;
Step 3: installation joint bar fixing bracket
After joint bar fixing bracket makes, joint bar fixing bracket is put into and waits for joint bar foundation pile base mouth central upper portion portion Position, and to joint bar fixing bracket leveling.
Step 4: fixed joint bar fixing bracket
It is fixed by four jacks 11 using fixed pin 4, fixed pin 4 is completely fixed;
Step 5: measurement and positioning joint bar column center line
S1. the center line for corresponding to column to foundation pile before joint bar carries out unwrapping wire, will corresponding column cross centre line by measuring It is identified on joint bar fixing bracket 3;
S2. cross centre line is connected with cotton rope, crosspoint is corresponding column center;
S3. fixing bracket 3 be placed above two it is parallel be fixed temporarily cross bar 6 and be fixed with tied silk, it is solid temporarily Determine the fixed stirrup 7 of installation positioning on cross bar 6, is used in combination tied silk by the fixed binding of stirrup 7 of positioning on being fixed temporarily cross bar 6, it is fixed It is identified the position of column joint bar on stirrup 7 is fixed in positioning according to column joint bar position after the completion.
Step 6: joint bar is constructed
After joint bar fixing bracket installs, joint bar construction is completed before casting concrete initial set:According to fixed stirrup 7 The position of upper mark carries out joint bar;
Step 7: joint bar absolute altitude controls
In joint bar work progress, joint bar is carried out using 7 display location of stirrup is fixed temporarily, it is true according to statistics pile foundation depth Fixed insertion depth is inserted into after depth reaches requirement and is bound on being fixed temporarily stirrup 7.
Step 8: joint bar is fixed
It waits for carrying out the measurement of joint bar verticality after joint bar is fixed temporarily, and stirrup is installed at one meter of top place and is tied up It pricks and fixes.
Step 9: joint bar repetition measurement
After the completion of pile foundation joint bar, squareness measurement, and a collection of stake in the construction process are carried out with regard to each reinforcing bar of corresponding column The straightness of joint bar is measured using instrument after the completion of joint bar, the measurement to integral central, absolute altitude, it is ensured that joint bar is whole accurate True property, makes precision reach requirement.
Wherein:Two base crossbeams 1 and two pedestal longerons 2 fix company by bolt 8 on joint bar fixing bracket in step 2 It connects;In the step 2 second sleeve 10 is additionally provided on the support bracket fastened square set of joint bar 3;Two pedestals in the step 2 Crossbeam 1 and two pedestal longerons 2 are made by L75mm × 5mm equal leg angles, and the fixed pin 4 is 25mm × 400mm's Screw-thread steel, the supporting rod 5 are 25mm × 200mm screw-thread steels;A diameter of 20mm of the second sleeve 10.
In some embodiments:A diameter of 30mm of the second sleeve 10.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments Invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be to aforementioned each implementation Technical solution recorded in example is modified or equivalent replacement of some of the technical features;And these modification or It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.

Claims (6)

1. a kind of extra-long foundation pile foundation joint bar positioning construction method, which is characterized in that construct according to the following steps:
Step 1: determining joint bar length and quantity
A1. joint bar stake is needed to be counted for scene;
A2. joint bar depth is counted according to foundation pile top mark height;
A3. foundation pile is numbered, determines the length and quantity for needing to be inserted into joint bar;
Step 2: joint bar fixing bracket makes
It is required to make corresponding joint bar fixing bracket according to joint bar, joint bar fixing bracket includes two base crossbeams (1), two bottoms Seat longeron (2), fixed pin (4) and square set (3), the length of the base crossbeam (1) are more than the length of pedestal longeron (2), The base crossbeam (1) and pedestal longeron (2) be angle steel and bottom edge inwardly, described two pedestal longerons (2) are symmetrical affixed A square cavity is collectively constituted on two base crossbeams (1) and with two base crossbeams (1) middle parts;The pedestal is horizontal Beam (1) both ends are equipped with jack (11), and the fixed pin (4) adapts to jack (11), and the square set (3) is square frame Structure, bottom of the square set (3) per one side are welded with supporting rod (5), described two base crossbeams (1) and two bottoms Seat longeron (2) bottom edge upper surface middle part is fixedly connected with sleeve (9), and the supporting rod (5) adapts to sleeve (9);
Step 3: installation joint bar fixing bracket
After joint bar fixing bracket makes, joint bar fixing bracket is put into and waits for joint bar foundation pile base mouth central upper portion position, and To joint bar fixing bracket leveling;
Step 4: fixed joint bar fixing bracket
It is fixed by four jacks (11) using fixed pin (4), fixed pin (4) is completely fixed;
Step 5: measurement and positioning joint bar column center line
S1. the center line for corresponding to column to foundation pile before joint bar carries out unwrapping wire, will corresponding column cross centre line mark by measuring In on joint bar fixing bracket (3);
S2. cross centre line is connected with cotton rope, crosspoint is corresponding column center;
S3. fixing bracket (3) be placed above two it is parallel be fixed temporarily cross bar (6) and be fixed with tied silk, it is solid temporarily Determine the fixed stirrup (7) of installation positioning on cross bar (6), is used in combination tied silk to bind the fixed stirrup (7) of positioning and is being fixed temporarily cross bar (6) On, it is identified the position of column joint bar after the completion of fixed on the fixed stirrup (7) of positioning according to column joint bar position;
Step 6: joint bar is constructed
After joint bar fixing bracket installs, joint bar construction is completed before casting concrete initial set:According on fixed stirrup (7) The position of mark carries out joint bar;
Step 7: joint bar absolute altitude controls
In joint bar work progress, joint bar is carried out using stirrup (7) display location is fixed temporarily, is determined according to statistics pile foundation depth Insertion depth, be inserted into after depth reaches requirement and bound on being fixed temporarily stirrup (7);
Step 8: joint bar is fixed
It waits for carrying out the measurement of joint bar verticality after joint bar is fixed temporarily, and in one meter of top place installation stirrup bind and consolidate It is fixed;
Step 9: joint bar repetition measurement
After the completion of pile foundation joint bar, squareness measurement, and a collection of stake joint bar in the construction process are carried out with regard to each reinforcing bar of corresponding column The straightness of joint bar is measured using instrument after the completion, the measurement to integral central, absolute altitude, it is ensured that joint bar is integrally accurate Property, so that precision is reached requirement.
2. a kind of extra-long foundation pile foundation joint bar positioning construction method according to claim 1, which is characterized in that step 2 Two base crossbeams (1) are fixedly connected with two pedestal longerons (2) by bolt (8) on middle joint bar fixing bracket.
3. a kind of extra-long foundation pile foundation joint bar positioning construction method according to claim 1 or 2, it is characterised in that:Institute It states and is additionally provided with second sleeve (10) on the support bracket fastened square set of joint bar in step 2 (3).
4. a kind of extra-long foundation pile foundation joint bar positioning construction method according to claim 3, it is characterised in that:The step Two base crossbeams (1) and two pedestal longerons (2) are made by L75mm × 5mm equal leg angles in rapid two, the fixation The screw-thread steel that (4) are 25mm × 400mm is sold, the supporting rod (5) is 25mm × 200mm screw-thread steels;The second sleeve (10) A diameter of 20mm~30mm.
CN201611200857.3A 2016-12-22 2016-12-22 A kind of extra-long foundation pile foundation joint bar positioning construction method Active CN106759280B (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107012860A (en) * 2017-06-02 2017-08-04 中国十七冶集团有限公司 A kind of construction method of the post Single Pile joint bar positioner based on BIM technology

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* Cited by examiner, † Cited by third party
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KR101222070B1 (en) * 2010-06-23 2013-01-15 한국건설기술연구원 Ocean Pile having FRP Pipe for Splash Zone Corrosion Protection and Construction Method thereof
CN204200093U (en) * 2014-09-24 2015-03-11 中国建筑第八工程局有限公司 Bored piles machine is to middle auxiliary device
CN205012665U (en) * 2015-08-27 2016-02-03 中国建筑第六工程局有限公司 Temporary fixing device of concrete wall joint bar
CN205382503U (en) * 2016-01-31 2016-07-13 杭州建工集团有限责任公司 Open caisson back cover bed course concrete operation platform for joint bar
CN105908977B (en) * 2016-06-08 2019-02-15 成都建筑工程集团总公司 Joint bar constructing structure and method

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