CN106337447A - Arrangement method for steel bar strain gauge of pipe pile - Google Patents
Arrangement method for steel bar strain gauge of pipe pile Download PDFInfo
- Publication number
- CN106337447A CN106337447A CN201610872734.8A CN201610872734A CN106337447A CN 106337447 A CN106337447 A CN 106337447A CN 201610872734 A CN201610872734 A CN 201610872734A CN 106337447 A CN106337447 A CN 106337447A
- Authority
- CN
- China
- Prior art keywords
- foil gauge
- insulation board
- reinforcing bar
- pasted
- steel reinforcement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
Abstract
The invention discloses an arrangement method for a steel bar strain gauge of a pipe pile. The arrangement method for the steel bar strain gauge of the pipe pile comprises the following steps that (1) insulation board cushion blocks are manufactured; (2) a steel reinforcement cage is polished; (3) the cushion blocks and a PVC pipe are mounted; (4) the pipe pile is manufactured; (5) impurities and residues are removed; (6) the gauge attaching portion is cleaned; (7) the strain gauge is mounted; (8) an outgoing line is mounted; and (9) the residual space of a groove is filled. Compared with the prior art, according to the pipe pile manufactured based on the attaching method, provided by the invention, for the steel bar strain gauge of the pipe pile, the strain gauge can be prevented from being damaged in the pipe pile manufacturing process, and the strain of the pipe pile can be accurately measured; and the method is wide in application range and good in market prospect.
Description
Technical field
The invention belongs to technical field of buildings, particularly to a kind of method to set up of pipe pile reinforcing bar foil gauge.
Background technology
At present, the measuring method of conventional Reinforcing Steel Bar In Reinforced Concrete Structure strain is by pre-buried foil gauge, then will
It connects to realize to deformeter.But, the making of the high concrete tubular pile of prestress strength will be experienced tensioning, be centrifuged into
Type, steam press maintenance and the demoulding such as put at the step, and the condition of some steps is more extreme, and the especially step such as autoclave at high temperature is easier to make
Foil gauge lost efficacy, and led to measured value larger error；Additionally, still suffering from centrifugal force, concrete extrusion in manufacturing process
Power etc. acts on, and foil gauge itself also easily damages.
Content of the invention
It is an object of the invention to provide a kind of method to set up of pipe pile reinforcing bar foil gauge.
For this reason, technical solution of the present invention is as follows:
A kind of method to set up of pipe pile reinforcing bar foil gauge, described method to set up comprises the following steps:
1) make insulation board spacer: the main body of insulation board spacer is cube shaped, fall in the edge setting of insulation board spacer
Angle；Open the u-shaped groove of an insertion in the horizontal direction at the middle part on insulation board spacer surface, bottom arranges circular groove；
2) polishing steel reinforcement cage: after pipe pile reinforcing bar cage colligation is finished, select two in the outside of the longitudinal reinforcing bar of steel reinforcement cage
The position of corresponding steel reinforcement cage foil gauge to be pasted, is polished into flat with angle grinder grinding wheel at the position of steel reinforcement cage foil gauge to be pasted
Face；
3) cushion block and pvc pipe are installed: the position of foil gauge to be pasted is respectively mounted a warming plate pad on two steel reinforcement cages
Block, surface, towards steel reinforcement cage axle center, the reinforcing bar at foil gauge position to be pasted for steel reinforcement cage is put in the u-shaped groove of insulation board spacer simultaneously
Fixed with iron wire；The two ends of pvc pipe are inserted in the circular groove of two insulation board spacers respectively, and is fixed with iron wire；
4) make pile tube: carry out by a conventional method, including enter mould, filling concrete, tensioning, centrifugal forming, steam pressure support
Shield and the demoulding are put and are opened in interior operating procedure；
5) removing is miscellaneous remaining: remove the concrete covering around insulation board spacer, the insulation board spacer of carbonization and pvc pipe,
Make the reinforcing bar at foil gauge position to be pasted exposed, and a through hole extending to pile tube inwall and a groove occur；
6) it is wiped repeatedly the reinforcing bar at foil gauge position to be pasted it is ensured that cleaning with ethanol and acetone；
7) foil gauge is installed: on the position of foil gauge paste and foil gauge on reinforcing bar, uniformly agent is pasted in painting, after laminating
The free end of foil gauge covers a strata vinyl chloride film, and extrudes unnecessary bubble and glue；
8) lead-out wire is installed: one end of lead-out wire is welded on the terminals of foil gauge；In other end insertion through hole, stretch out
The inwall of pile tube, for connecting deformeter；
9) fill the remaining space of groove: epoxy resin and the closing of 704 silica gel are used on exposed reinforcing bar, with stiff successively
Property pea gravel concreten filling groove and sealing of hole it is ensured that flushing with pile tube outer wall.
Preferably, the material of insulation board spacer is polyurethane.
Preferably, the thickness of epoxy resin is 5-10mm.
Preferably, the thickness of 704 silica gel is 10-20mm.
Preferably, the ratio of mud≤0.3 of dry pea gravel concreten.
Compared with prior art, the pile tube that the method for attaching of the pipe pile reinforcing bar foil gauge being provided by the present invention is made, energy
Avoid foil gauge damaged in pile tube manufacturing process, and accurate measurement can be strained；Applied range, market prospect is good.
Brief description
Fig. 1 is the front view of insulation board spacer.
Fig. 2 is the side view of insulation board spacer.
Fig. 3 is step 3) schematic diagram after cushion block and pvc pipe is installed.
Fig. 4 is step 8) schematic diagram after lead-out wire is installed.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described further, but following embodiment is absolutely not to this
Bright have any restriction.
As Figure 1-4, the method to set up of this pipe pile reinforcing bar foil gauge comprises the following steps:
1) make insulation board spacer 1: the main body of insulation board spacer 1 is cube shaped, in the edge setting of insulation board spacer 1
Chamfering, it is to avoid stress concentration；Middle part foam cutting machine on insulation board spacer 1 surface opens the u-shaped of an insertion in the horizontal direction
Groove 2, bottom arranges circular groove 3；In addition, the thickness of insulation board spacer 1 conveniently should pick close to the thickness of pile tube protective layer
Remove；
Taking the pile tube of diameter 500mm as a example, the preferred 85mm × 45mm of the size × 60mm of insulation board spacer 1, u-shaped groove 2
The preferred 12mm of diameter, the diameter of circular groove 3 is preferably 10mm；
2) polishing steel reinforcement cage: after pipe pile reinforcing bar cage colligation is finished, select two in the outside of the longitudinal reinforcing bar 4 of steel reinforcement cage
The position of corresponding steel reinforcement cage foil gauge to be pasted 8, so as on steel reinforcement cage relative to two insulation board spacers 1 between interspersed
Pvc pipe 5；Then with angle grinder grinding wheel, the position (i.e. the outer surface of reinforcing bar 4) of foil gauge 8 to be pasted on steel reinforcement cage is polished into flat
Face, to paste foil gauge 8；Make as far as possible two insulation board spacers 1 polishing plane parallel to each other it is ensured that on two positions answering
The strain value that change piece 8 records can reflect the mechanical characteristic in same pile body section；
3) cushion block and pvc pipe 5 are installed: the position of foil gauge 8 to be pasted is respectively mounted a warming plate on two steel reinforcement cages
Cushion block 1, surface leads to towards steel reinforcement cage axle center, the u-shaped that the reinforcing bar 4 at foil gauge 8 position to be pasted for steel reinforcement cage is put into insulation board spacer 1
Fix in groove 2 and with iron wire；The two ends of pvc pipe 5 are inserted in the circular groove 3 of two insulation board spacers 1 respectively, solid with iron wire
Fixed；The effect of pvc pipe 5 is to reserve a passage for connecting outlet, and pvc pipe 5 is easily disallowable after autoclave at high temperature maintenance；
4) make pile tube: carry out by a conventional method, including enter mould, filling concrete, tensioning, centrifugal forming, steam pressure support
Shield and the demoulding are put and are opened in interior operation；
5) removing is miscellaneous remaining: removes the concrete covering around insulation board spacer 1, the insulation board spacer 1 of carbonization (support by steam pressure
Almost all fusing after shield) and pvc pipe 5, a through hole 9 (hole that i.e. pvc pipe 5 stays after rejecting extending to pile tube inwall occurs
Hole) and a groove 7 (space that i.e. insulation board spacer 1 stays after rejecting, the reinforcing bar 4 at foil gauge 8 position to be pasted is at the bottom of groove 7
Portion is exposed)；
6) remove miscellaneous remaining after just it can be seen that exposed reinforcing bar 4 and the position being polished into plane, repeatedly wiped with ethanol and acetone
Wipe the reinforcing bar 4 at foil gauge 8 position to be pasted it is ensured that cleaning；
7) foil gauge 8 is installed: on the position of foil gauge 8 paste and foil gauge 8 on reinforcing bar 4, uniformly painting is pasted agent and (waited to stick
After patch retrogradation, clamp the both sides of foil gauge 8 with tweezers, be attached to the position of foil gauge 8 to be pasted on reinforcing bar 4), in strain after laminating
The free end of piece 8 covers a strata vinyl chloride film 6, exerts oneself to extrude along the length direction of foil gauge 8 with finger, extrusion strain
Bubble below piece 8 and unnecessary paste agent；With finger compression, till foil gauge 8 with reinforcing bar 4 close adhesion；
8) lead-out wire is installed: one end of lead-out wire is welded on the terminals of foil gauge 8；In other end insertion through hole 9, stretch
Go out the inwall of pile tube, for connecting deformeter；
9) fill the remaining space of groove 7: the thick epoxy resin of 5-10mm and 10- are smeared successively on exposed reinforcing bar 4
704 thick silica gel closings of 20mm, reach waterproof and dampproof purpose；Then dry pea gravel concreten filling groove 7 sealing of hole are used,
Guarantee to flush with pile tube outer wall.
Wherein, the material of insulation board spacer 1 is polyurethane.
The ratio of mud≤0.3 of dry pea gravel concreten.
According to actual situation, can same intervals distance (for example, every 1 meter or 0.5 meter) on same root canal pile pacify
Fill some groups of foil gauges 8, so that the strain of detection different loci；Measure this pipe pile reinforcing bar strain when, by lead-out wire with should
Become instrument and connect and can measure.
In sum, compared with prior art, the pipe that the method for attaching of the pipe pile reinforcing bar foil gauge that the present invention provides makes
Stake, is just to install foil gauge 8 after pile tube completes, is therefore avoided that foil gauge 8 is damaged in pile tube manufacturing process, and
The strain of pile tube diverse location accurately can be measured；Applied range, market prospect is good.
Claims (5)
1. a kind of method to set up of pipe pile reinforcing bar foil gauge is it is characterised in that described method to set up comprises the following steps:
1) make insulation board spacer (1): the main body of insulation board spacer (1) is cube shaped, sets at the edge of insulation board spacer (1)
Put chamfering；Open the u-shaped groove (2) of an insertion in the horizontal direction at the middle part on insulation board spacer (1) surface, bottom setting is circular recessed
Groove (3)；
2) polishing steel reinforcement cage: after pipe pile reinforcing bar cage colligation is finished, select two phases in the outside of the longitudinal reinforcing bar (4) of steel reinforcement cage
The position of corresponding steel reinforcement cage foil gauge (8) to be pasted, is polished at the position of steel reinforcement cage foil gauge to be pasted (8) with angle grinder grinding wheel
Become plane；
3) cushion block and pvc pipe (5) are installed: the position of foil gauge (8) to be pasted is respectively mounted a warming plate on two steel reinforcement cages
Cushion block (1), insulation board spacer, towards steel reinforcement cage axle center, the reinforcing bar (4) at foil gauge to be pasted for steel reinforcement cage (8) position is put in surface
(1) fix in u-shaped groove (2) and with iron wire；The circle of two insulations board spacer (1) is inserted at the two ends that pvc is managed (5) respectively
In groove (3), and fixed with iron wire；
4) make pile tube: carry out by a conventional method, enter mould, filling concrete, tensioning, centrifugal forming, steam press maintenance and the demoulding
Put and open in interior operation；
5) removing is miscellaneous remaining: removes the concrete covering around insulation board spacer (1), the insulation board spacer (1) of carbonization and pvc pipe
(5), make the reinforcing bar (4) at foil gauge to be pasted (8) position exposed, and a through hole (9) extending to pile tube inwall and a groove occur
(7)；
6) it is wiped repeatedly the reinforcing bar (4) at foil gauge to be pasted (8) position it is ensured that cleaning with ethanol and acetone；
7) foil gauge (8) is installed: the position of foil gauge (8) to be pasted and upper uniformly painting of foil gauge (8) paste agent on reinforcing bar (4),
After laminating, the free end in foil gauge (8) covers a strata vinyl chloride film (6), and extrudes unnecessary bubble and glue；
8) lead-out wire is installed: one end of lead-out wire is welded on the terminals of foil gauge (8)；In other end insertion through hole (9), stretch
Go out the inwall of pile tube, for connecting deformeter；
9) remaining space of filling groove (7): epoxy resin and the closing of 704 silica gel are used on exposed reinforcing bar (4), with doing successively
Rigid pea gravel concreten fills groove (7) and sealing of hole is it is ensured that flush with pile tube outer wall.
2. method to set up according to claim 1 is it is characterised in that the material of insulation board spacer (1) is polyurethane.
3. method to set up according to claim 1 is it is characterised in that the thickness of epoxy resin is 5-10mm.
4. method to set up according to claim 1 is it is characterised in that the thickness of 704 silica gel is 10-20mm.
5. method to set up according to claim 1 is it is characterised in that the ratio of mud≤0.3 of dry pea gravel concreten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872734.8A CN106337447A (en) | 2016-09-30 | 2016-09-30 | Arrangement method for steel bar strain gauge of pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872734.8A CN106337447A (en) | 2016-09-30 | 2016-09-30 | Arrangement method for steel bar strain gauge of pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106337447A true CN106337447A (en) | 2017-01-18 |
Family
ID=57839729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610872734.8A Pending CN106337447A (en) | 2016-09-30 | 2016-09-30 | Arrangement method for steel bar strain gauge of pipe pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989663A (en) * | 2017-03-08 | 2017-07-28 | 天津大学 | Precast prestressed reinforced concrete member reinforcing bar strain measurement method |
| CN114960597A (en) * | 2022-04-14 | 2022-08-30 | 湖南文理学院 | Method for testing strain-internal force of pile body of PHC pipe pile |
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| CN102535530A (en) * | 2011-12-29 | 2012-07-04 | 中国地质科学院地质力学研究所 | Miniature pile model used for model tests and manufacturing method thereof |
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2016
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989663A (en) * | 2017-03-08 | 2017-07-28 | 天津大学 | Precast prestressed reinforced concrete member reinforcing bar strain measurement method |
| CN114960597A (en) * | 2022-04-14 | 2022-08-30 | 湖南文理学院 | Method for testing strain-internal force of pile body of PHC pipe pile |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170118 |
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| RJ01 | Rejection of invention patent application after publication |