CN102141365B - Method for measuring deformation of steel sleeve - Google Patents
Method for measuring deformation of steel sleeve Download PDFInfo
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- CN102141365B CN102141365B CN201010102244.2A CN201010102244A CN102141365B CN 102141365 B CN102141365 B CN 102141365B CN 201010102244 A CN201010102244 A CN 201010102244A CN 102141365 B CN102141365 B CN 102141365B
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Abstract
The invention relates to the technical field of inspection of the installation quality of high-altitude steel structures, in particular to a method for measuring the deformation of a steel sleeve. In the method for measuring the deformation of a steel sleeve, steel rulers with scales are used for measuring the internal concavity of the circumferentially transverse welding seams, the camber of the longitudinal welding seams of the steel sleeve and the vertical evenness on the wall surface of the steel sleeve. The method is characterized in that a longitudinal steel ruler (1) and a transverse steel ruler (2) are used for measuring the internal concavity of the circumferentially transverse welding seams of the steel sleeve and the transverse steel ruler (2) and a template (4) are used for measuring the camber of the longitudinal welding seams of the steel sleeve. The method provided by the invention has the advantages of simple structure, convenience for operation, high precision, safety and reliability.
Description
Technical field
The present invention relates to high-altitude steel structure installation quality Examined effect field, be specially a kind of measuring method of deformation of steel sleeve.
Background technology
Steel construction is widely used in house, bridge, tower mast, pipeline, storage tank, pressure vessel and water conservancy project etc., and the inspection of steel construction product installation quality has become one of important operation, because scene limits by various condition, be difficult to measure to the camber installing cylindrical shell in high-altitude, exact instrument such as cannot adopting total powerstation measured to cylindrical shell bulk deformation and measures.The method of current measurement steel structure cylinder concave-convex surface degree is at present primarily of survey instrument Combination application such as straight steel ruler, common calliper, weld seam rule, but not every survey instrument and measuring method are measured can be suitable for the concave-convex surface degree existed in high-altitude steel structure installation process.Some instrument or method cannot be suitable for because being subject to the restriction of the conditions such as on-the-spot place, weather, space.Notification number is the utility model patent that the Chinese patent of CN2099295U discloses name be called " vernier for vessel inspection " on November 4th, 1992, added between pin can along the secondary chi vernier of main scale movement by surveying at common calliper main scale for this utility model, makes the secondary chi that moves up and down perpendicular to main scale and be positioned to survey on pin and the activity that can rotate around it is surveyed pin and formed along secondary chi vernier.This utility model is only applicable to the measurement of localized indentation convexity, and carrying out camber in high-altitude to steel bushing integral surface, to measure then significant discomfort suitable.Notification number is the utility model patent that the Chinese patent of CN2145977U discloses name be called " Welding seam malposition detecting rule " on November 10th, 1993, this utility model is by the permanent magnetic iron block being clamped in main crossfoot two ends, benchmark iron block, the dip stick inlayed in the vernier scale be provided with in the middle of main crossfoot and vernier scale and permanent magnetic iron block composition.It is mainly for the measurement of spiral welded steel pipe welding seam misalignment amount and the concavo-convex defect of steel tube surface.This utility model is not suitable for large-diameter cylinder body concave-convex surface degree and measures.Notification number is the utility model patent that the Chinese patent of CN2158525U discloses name be called " Universal gauge " on March 9th, 1994, and this utility model chi body is the shape of a saddle, and the side pawl that can swing around little axle is arranged at its bottom, two ends.This utility model same can only be used for the concavo-convex defect of also measure local.
Summary of the invention
In order to overcome the defect of prior art, provide a kind of convenient and simple for operation effectively, degree of accuracy measuring method high, applied widely, the invention discloses a kind of measuring method of deformation of steel sleeve.
The present invention reaches goal of the invention by following technical solution:
A measuring method for deformation of steel sleeve, utilizes steel ruler with a scale to implement to measure operation, comprises the internal concavity measuring hoop horizontal position welding seam, the camber measuring the longitudinal cross joint of steel bushing and measures the vertical flatness in steel bushing barrel surface, it is characterized in that:
When measuring the internal concavity of steel bushing hoop horizontal position welding seam, longitudinal steel ruler and horizontal steel ruler is adopted to carry out, longitudinal steel ruler is abutted against on the outside surface of steel bushing barrel, the outside surface being pushed in the horizontal direction more horizontal steel ruler being touched longitudinal steel ruler contacts with the outside surface of steel bushing barrel, by horizontal steel ruler show from the outside surface of steel bushing barrel to longitudinal steel ruler outer between the length reading in gap be the internal concavity that the horizontal position welding of steel bushing hoop stitches; Because steel bushing is in overhead welding forming process, can not effectively support inside steel plate, therefore after welding because of drawdown deformation, in this welding position steel plate indent, therefore actual what record is depression value.
When measuring the camber of the longitudinal cross joint of steel bushing, horizontal steel ruler and template is adopted to carry out, template is an arc, the radius-of-curvature of template medial surface is identical with the design load of the lateral surface radius-of-curvature of steel bushing barrel, the arc length of template is at more than 1m and central angle is no more than π, the medial surface of template is fitted on the lateral surface of steel bushing barrel, the side more horizontal steel ruler being touched template is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel, by horizontal steel ruler show from the outside surface of steel bushing barrel to template outer between the reading in gap be the camber of the longitudinal cross joint of steel bushing, template can make of core-board.
When measuring the vertical flatness in steel bushing barrel surface, steel wire and hanging basket is adopted to carry out, with the generatrix direction of steel wire along steel bushing barrel, entirety from the bottom up can be adopted to stretch tight steel wire, also can adopt and stretch tight one section of steel wire every 10m mono-section, the gap (i.e. bulk deformation deviate) between steel wire and steel bushing barrel utilizes hanging basket equidistantly to measure from the bottom up.
Instant invention overcomes prior art measurement range less, to camber can only be little local measured and be not suitable for the measurement of large-diameter cylinder body concave-convex surface degree, for bulk deformation because carrying out with surveying instrument the defect measured etc. by place restriction, the present invention not only can measure the overall circularity of cylindrical shell and bulk deformation, and can measure drum surface camber.
The invention has the beneficial effects as follows: structure is simple, and easy to operate, degree of accuracy is high, safe and reliable, little, applied widely to place application restriction, be particularly suitable for aerological measurement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the internal concavity measuring steel bushing hoop horizontal position welding seam in the present invention;
Fig. 2 is the schematic diagram of the camber measuring the longitudinal cross joint of steel bushing in the present invention.
Embodiment
The present invention is further illustrated below by way of specific embodiment.
Embodiment 1
Now need concave-convex surface degree and the bulk deformation situation of the Covered with Angles sleeve of measurement one 120m reinforced concrete chimney, adopt the measuring method of deformation of steel sleeve to carry out, concrete steps are as follows:
Measure the deformation of steel bushing, comprise the internal concavity measuring hoop horizontal position welding seam, the camber measuring the longitudinal cross joint of steel bushing and measure the vertical flatness in steel bushing barrel surface.
First the internal concavity of steel bushing hoop horizontal position welding seam is measured, as shown in Figure 1, longitudinal steel ruler 1 and horizontal steel ruler 2 is adopted to carry out, longitudinal steel ruler 1 is abutted against on the outside surface of steel bushing barrel 3, the outside surface being pushed in the horizontal direction more horizontal steel ruler 2 being touched longitudinal steel ruler 1 contacts with the outside surface of steel bushing barrel 3, by horizontal steel ruler 2 show from the outside surface of steel bushing barrel 3 to longitudinal steel ruler 1 outer between the length reading in gap be the internal concavity that the horizontal position welding of steel bushing hoop stitches.
Secondly the camber of the longitudinal cross joint of steel bushing is measured, as shown in Figure 2, horizontal steel ruler 2 and template 4 is adopted to carry out, template 4 is an arc, core-board can be adopted to make, the radius-of-curvature of template 4 medial surface is identical with the design load of the lateral surface radius-of-curvature of steel bushing barrel 3, the arc length of template 4 is at more than 1m and central angle is no more than π, the medial surface of template 4 is fitted on the lateral surface of steel bushing barrel 3, the side more horizontal steel ruler 2 being touched template 4 is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel 3, by horizontal steel ruler 2 show from the outside surface of steel bushing barrel 3 to template 4 outer between the reading in gap be the camber of the longitudinal cross joint of steel bushing.
Finally measure the vertical flatness in steel bushing barrel surface, vertical flatness is also bus linearity, adopts steel wire and hanging basket to carry out, with the generatrix direction of steel wire along steel bushing barrel, entirety stretches tight steel wire from the bottom up, and the gap between steel wire and steel bushing barrel utilizes hanging basket equidistantly to measure from the bottom up.
Embodiment 2
Now need concave-convex surface degree and the bulk deformation situation of the Covered with Angles sleeve of measurement one 120m reinforced concrete chimney, the measuring method of deformation of steel sleeve is adopted to carry out, wherein: when measuring the vertical flatness in steel bushing barrel surface, steel wire and hanging basket is adopted to carry out, with the generatrix direction of steel wire along steel bushing barrel, to stretch tight one section of steel wire every 10m mono-section from the bottom up.Additive method is all same with embodiment 1.
Claims (2)
1. a measuring method for deformation of steel sleeve, utilizes steel ruler with a scale to implement to measure operation, comprises the internal concavity measuring hoop horizontal position welding seam, the camber measuring the longitudinal cross joint of steel bushing and measures the vertical flatness in steel bushing barrel surface, it is characterized in that:
When measuring the internal concavity of steel bushing hoop horizontal position welding seam, longitudinal steel ruler (1) and horizontal steel ruler (2) is adopted to carry out, longitudinal steel ruler (1) is abutted against on the outside surface of steel bushing barrel (3), the outside surface more horizontal steel ruler (2) being touched longitudinal steel ruler (1) is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel (3), and between the outside surface from steel bushing barrel (3) shown by horizontal steel ruler (2) to longitudinal steel ruler (1) outer, the length reading in gap is the internal concavity of steel bushing hoop horizontal position welding seam;
When measuring the camber of the longitudinal cross joint of steel bushing, horizontal steel ruler (2) and template (4) is adopted to carry out, template (4) is an arc, the radius-of-curvature of template (4) medial surface is identical with the design load of the lateral surface radius-of-curvature of steel bushing barrel (3), the arc length of template (4) is at more than 1m and central angle is no more than π, the medial surface of template (4) is fitted on the lateral surface of steel bushing barrel (3), the side more horizontal steel ruler (2) being touched template (4) is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel (3), by horizontal steel ruler (2) show from the outside surface of steel bushing barrel (3) to template (4) outer between the reading in gap be the camber of the longitudinal cross joint of steel bushing,
When measuring the vertical flatness in steel bushing barrel surface, steel wire and hanging basket is adopted to carry out, with the generatrix direction of steel wire along steel bushing barrel, entirety stretches tight steel wire from the bottom up, and the gap (i.e. bulk deformation deviate) between steel wire and steel bushing barrel utilizes hanging basket equidistantly to measure from the bottom up.
2. a measuring method for deformation of steel sleeve, utilizes steel ruler with a scale to implement to measure operation, comprises the internal concavity measuring hoop horizontal position welding seam, the camber measuring the longitudinal cross joint of steel bushing and measures the vertical flatness in steel bushing barrel surface, it is characterized in that:
When measuring the internal concavity of steel bushing hoop horizontal position welding seam, longitudinal steel ruler (1) and horizontal steel ruler (2) is adopted to carry out, longitudinal steel ruler (1) is abutted against on the outside surface of steel bushing barrel (3), the outside surface more horizontal steel ruler (2) being touched longitudinal steel ruler (1) is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel (3), and between the outside surface from steel bushing barrel (3) shown by horizontal steel ruler (2) to longitudinal steel ruler (1) outer, the length reading in gap is the internal concavity of steel bushing hoop horizontal position welding seam;
When measuring the camber of the longitudinal cross joint of steel bushing, horizontal steel ruler (2) and template (4) is adopted to carry out, template (4) is an arc, the radius-of-curvature of template (4) medial surface is identical with the design load of the lateral surface radius-of-curvature of steel bushing barrel (3), the arc length of template (4) is at more than 1m and central angle is no more than π, the medial surface of template (4) is fitted on the lateral surface of steel bushing barrel (3), the side more horizontal steel ruler (2) being touched template (4) is also pushed in the horizontal direction and contacts with the outside surface of steel bushing barrel (3), by horizontal steel ruler (2) show from the outside surface of steel bushing barrel (3) to template (4) outer between the reading in gap be the camber of the longitudinal cross joint of steel bushing,
When measuring the vertical flatness in steel bushing barrel surface, steel wire and hanging basket is adopted to carry out, with the generatrix direction of steel wire along steel bushing barrel, to stretch tight one section of steel wire every 10m mono-section from the bottom up, the gap (i.e. bulk deformation deviate) between steel wire and steel bushing barrel utilizes hanging basket equidistantly to measure from the bottom up.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010102244.2A CN102141365B (en) | 2010-01-28 | 2010-01-28 | Method for measuring deformation of steel sleeve |
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| CN201010102244.2A CN102141365B (en) | 2010-01-28 | 2010-01-28 | Method for measuring deformation of steel sleeve |
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| CN102141365B true CN102141365B (en) | 2015-04-29 |
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Cited By (1)
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| RU2766992C1 (en) * | 2021-03-01 | 2022-03-16 | Саусвест Петролиэм Юниверсити (СВПЮ) | Installation for testing with respect to deformation of metal casing pipe in process of waiting for hardening of cement mortar for well cementing |
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| CN113945145A (en) * | 2021-11-19 | 2022-01-18 | 中船澄西扬州船舶有限公司 | T-shaped flatness measuring scale |
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| JP3806268B2 (en) * | 1999-05-17 | 2006-08-09 | 日本航空電子工業株式会社 | Spherometer |
| CN2453385Y (en) * | 2000-11-29 | 2001-10-10 | 宝山钢铁股份有限公司 | Device for measuring irregularity of surface of steel band of steel sheet |
| CN201003943Y (en) * | 2007-01-22 | 2008-01-09 | 宝山钢铁股份有限公司 | A measurement instrument for steel plate bending degree |
| CN201311259Y (en) * | 2008-11-26 | 2009-09-16 | 中国石油天然气集团公司 | Measuring scale for raised or depressed parameter of the surface of steel tube |
| CN201364116Y (en) * | 2009-03-10 | 2009-12-16 | 新疆八一钢铁股份有限公司 | Steel product surface local defect depth and height measuring apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2766992C1 (en) * | 2021-03-01 | 2022-03-16 | Саусвест Петролиэм Юниверсити (СВПЮ) | Installation for testing with respect to deformation of metal casing pipe in process of waiting for hardening of cement mortar for well cementing |
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Address after: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee after: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. Patentee after: SHANGHAI BAOYE GROUP Corp.,Ltd. Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: Shanghai Baosteel Industrial Inspection Co.,Ltd. Patentee before: SHANGHAI BAOYE GROUP Corp.,Ltd. Address after: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee after: Shanghai Baosteel Industrial Inspection Co.,Ltd. Patentee after: SHANGHAI BAOYE GROUP Corp.,Ltd. Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: Shanghai Baosteel Industry Inspection Corp. Patentee before: SHANGHAI BAOYE GROUP Corp.,Ltd. |
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Address after: 3520 Tongji Road, Baoshan District, Shanghai 201900 Patentee after: Baowu equipment Intelligent Technology Co.,Ltd. Patentee after: SHANGHAI BAOYE GROUP Corp.,Ltd. Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. Patentee before: SHANGHAI BAOYE GROUP Corp.,Ltd. |