CN101915553A - Simple precamber measuring method in steel box girder construction - Google Patents
Simple precamber measuring method in steel box girder construction Download PDFInfo
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- CN101915553A CN101915553A CN 201010267694 CN201010267694A CN101915553A CN 101915553 A CN101915553 A CN 101915553A CN 201010267694 CN201010267694 CN 201010267694 CN 201010267694 A CN201010267694 A CN 201010267694A CN 101915553 A CN101915553 A CN 101915553A
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- infrared laser
- precamber
- box girder
- rule
- steel box
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Abstract
The invention relates to a precamber measuring method in steel box girder construction. The simple precamber measuring method in the steel box girder construction is characterized by comprising the following steps of: (1) installing a precamber measuring device at the intersection point of the road centre line of a steel box girder and the centre line of a first pier; (2) fixing the mounting height of an infrared laser pen of the precamber measuring device; (3) installing a dividing rule on the steel box girder at the centre line of a second pier being adjacent to the first pier, starting the infrared laser pen of the precamber measuring device, leading infrared laser generated by the infrared laser pen to be indicated to the dividing rule and reading out the indicated numerical value h1 of the dividing rule; and (4) moving the dividing rule to the midspan or the preprecamber value position appointed in design paper, and reading out the numerical value h2 of the dividing rule, indicated by the infrared laser, wherein the difference value of h2 and h1 is the preprecamber value of the steel box girder. The method is simple and easy to realize.
Description
Technical field
The present invention relates to the measuring method of camber in a kind of steel box girder construction.
Background technology
Street, Huangpu, Wuhan City-Golden Bridge's main road express passway engineering is Wuhan City's priority project as main road, Wuhan important component part, and its steel case Liang always is about 3700m, the about 43000t of gross weight.Steel case beam span is not waited by 28m～150m, whenever strides steel case beam camber and is not waited by 7mm～244mm.Whether the setting of steel case beam camber value reaches designing requirement, the serviceable life that is related to this engineering steel case beam viaduct, therefore, in the steel case beam installation process, the camber value is one of emphasis of construction monitoring, and whenever striding steel case beam, to install the back also be one of construction emphasis to the measurement of its camber.
Summary of the invention
The object of the present invention is to provide a kind of simple precamber measuring method in steel box girder construction, this method is simple.
To achieve these goals, technical scheme of the present invention is: simple precamber measuring method in steel box girder construction, it comprises the steps:
1), the camber measurement mechanism is installed at the road axis of steel case beam and the center line intersection point place of first bridge pier;
2), an infrared laser setting height(from bottom) of camber measurement mechanism is fixed;
3), on the steel case beam at the position of center line place of second bridge pier adjacent, rule is set with first bridge pier, open the infrared laser pen of camber measurement mechanism, the infrared laser that the infrared laser pen produces is indicated on the rule, reads the rule numerical value h1 of indication;
4), rule moved in span centre or the design drawing specifies camber value position, read the rule numerical value h2 of infrared laser indication, the difference of h2 and h1 is the camber value of steel case beam.
The invention has the beneficial effects as follows: only need camber measurement mechanism and rule, equipment is simple, and above-mentioned steps is also simple; The present invention has the method characteristic of simple.
Description of drawings
Fig. 1 is a steel box girder construction simple precamber instrumentation plan;
Fig. 2 is the structural representation of camber measurement mechanism;
Among the figure: 1-first bridge pier, 2-second bridge pier, 3-steel case beam, 4-camber measurement mechanism, 5-rule; The 6-base, 7-column, 8-sliding sleeve, 9-stay pipe, 10-screw rod, 11-infrared laser pen.
Embodiment
As shown in Figure 1, simple precamber measuring method in steel box girder construction, it comprises the steps:
1), camber measurement mechanism 4 is installed at the road axis (vertically) of steel case beam 3 and center line (laterally) the intersection point place of first bridge pier 1;
2), an infrared laser setting height(from bottom) of camber measurement mechanism is fixed (being that the infrared laser style is fixed the high 500mm of this example behind desired height);
3), on the steel case beam of center line (laterally) position of second bridge pier adjacent (being another bridge pier) 2, rule 5 is set with first bridge pier, open the infrared laser pen of camber measurement mechanism, the infrared laser that the infrared laser pen produces is indicated on the rule, reads the rule numerical value h1 (this example is specially 500mm) of indication;
4), rule is moved to appointment camber value position in span centre or the design drawing, read the rule numerical value h2 (this example is specially 527mm) of infrared laser indication, the difference of h2 and the h1 difference of bridge pier centerline rule numerical value (itself and) is 27mm, is the camber value of steel case beam.
As shown in Figure 2, described camber measurement mechanism comprises base 6, column 7, sliding sleeve 8, stay pipe 9, screw rod 10, infrared laser pen 11, the lower end of column 7 is welded on the base 6, sliding sleeve 8 is enclosed within (sliding sleeve 8 can slide, rotate) on the column 7 on column 7, one end of stay pipe 9 and sliding sleeve 8 welding, sliding sleeve 8 is provided with screw, and (screw rod screws in and contacts with column, and sliding sleeve and column 7 are fixing in the end screw-in screw of screw rod 10; Screw rod screws out, and sliding sleeve 8 can slide, rotate along column); One end of infrared laser pen (infrared transmitting device) 11 is placed in the stay pipe 9 and (also can all be placed in the stay pipe 9), and the infrared laser transmitting terminal of infrared laser pen 11 is positioned at outside the stay pipe 9.
Column is a steel pipe, uses steel plate as base, and sliding sleeve also adopts steel pipe.Base is shelved on the steel case beam during use, and an infrared laser setting height(from bottom) is regulated by moving up and down of sliding sleeve, fixing then (being that the infrared laser style is fixed behind desired height).
Claims (2)
1. simple precamber measuring method in steel box girder construction is characterized in that it comprises the steps:
1), the camber measurement mechanism is installed at the road axis of steel case beam and the center line intersection point place of first bridge pier;
2), an infrared laser setting height(from bottom) of camber measurement mechanism is fixed;
3), on the steel case beam at the position of center line place of second bridge pier adjacent, rule is set with first bridge pier, open the infrared laser pen of camber measurement mechanism, the infrared laser that the infrared laser pen produces is indicated on the rule, reads the rule numerical value h1 of indication;
4), rule moved in span centre or the design drawing specifies camber value position, read the rule numerical value h2 of infrared laser indication, the difference of h2 and h1 is the camber value of steel case beam.
2. simple precamber measuring method in steel box girder construction according to claim 1, it is characterized in that: described camber measurement mechanism comprises base (6), column (7), sliding sleeve (8), stay pipe (9), screw rod (10), infrared laser pen (11), the lower end of column (7) is welded on the base (6), sliding sleeve (8) is enclosed within on the column (7), one end of stay pipe (9) and sliding sleeve (8) welding, sliding sleeve (8) is provided with screw, and an end of screw rod (10) screws in the screw; One end of infrared laser pen (11) is placed in the stay pipe (9), and the infrared laser transmitting terminal of infrared laser pen (11) is positioned at outside the stay pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102676947A CN101915553B (en) | 2010-08-31 | 2010-08-31 | Simple precamber measuring method in steel box girder construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102676947A CN101915553B (en) | 2010-08-31 | 2010-08-31 | Simple precamber measuring method in steel box girder construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101915553A true CN101915553A (en) | 2010-12-15 |
| CN101915553B CN101915553B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102676947A Expired - Fee Related CN101915553B (en) | 2010-08-31 | 2010-08-31 | Simple precamber measuring method in steel box girder construction |
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| Country | Link |
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| CN (1) | CN101915553B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759350A (en) * | 2012-07-23 | 2012-10-31 | 武汉一冶钢结构有限责任公司 | High-altitude measuring method for construction of crane beams |
| CN104215192A (en) * | 2013-06-05 | 2014-12-17 | 中国铁建港航局集团有限公司 | Method for measuring inverted camber of prefabricated beam/slab |
| CN104392148A (en) * | 2014-12-15 | 2015-03-04 | 重庆交通大学 | Method for setting pre-camber of special cable-stayed bridge for long-span rail |
| CN107718428A (en) * | 2017-10-30 | 2018-02-23 | 南京汇龙五金工具制造有限公司 | A kind of handware tool quick structure for assembling |
| CN113124769A (en) * | 2021-04-07 | 2021-07-16 | 西安热工研究院有限公司 | Method for measuring camber of large plate girder |
| CN114136192A (en) * | 2021-11-19 | 2022-03-04 | 中铁四局集团有限公司 | Deformation measuring device and method for movable mould frame |
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| JPH03195910A (en) * | 1989-12-26 | 1991-08-27 | Nkk Corp | Measuring method for camber of crane girder |
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| CN2299301Y (en) * | 1997-04-07 | 1998-12-02 | 黑龙江省劳动保护科学技术研究所 | Laser arch gauge |
| CA2405877A1 (en) * | 2001-09-28 | 2003-03-28 | Eldon Tipping | Apparatus and method for improving quality of elevated concrete floors |
| CN101139819A (en) * | 2007-08-03 | 2008-03-12 | 中铁一局集团有限公司 | Steel strand reversal fulcrum preloading method |
| CN101245997A (en) * | 2008-03-27 | 2008-08-20 | 武汉科技大学 | Device for detecting upper arch deformation curve of crane main girder |
| CN201318935Y (en) * | 2008-12-12 | 2009-09-30 | 李代会 | Laser arch measuring instrument |
| CN201322606Y (en) * | 2008-12-16 | 2009-10-07 | 大连光程光电科技有限公司 | Laser measuring instrument for crane deformation |
| CN101556144A (en) * | 2009-04-15 | 2009-10-14 | 杨国慧 | Laser longitude and latitude multifunctional fast arc-measuring apparatus as well as measuring and calculating method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3195910B2 (en) * | 1997-02-07 | 2001-08-06 | プレス工業株式会社 | Cross member and manufacturing method thereof |
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2010
- 2010-08-31 CN CN2010102676947A patent/CN101915553B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03195910A (en) * | 1989-12-26 | 1991-08-27 | Nkk Corp | Measuring method for camber of crane girder |
| CN2094719U (en) * | 1991-06-13 | 1992-01-29 | 曾繁国 | Magnetic force arch measuring instrument |
| CN2299301Y (en) * | 1997-04-07 | 1998-12-02 | 黑龙江省劳动保护科学技术研究所 | Laser arch gauge |
| CA2405877A1 (en) * | 2001-09-28 | 2003-03-28 | Eldon Tipping | Apparatus and method for improving quality of elevated concrete floors |
| CN101139819A (en) * | 2007-08-03 | 2008-03-12 | 中铁一局集团有限公司 | Steel strand reversal fulcrum preloading method |
| CN101245997A (en) * | 2008-03-27 | 2008-08-20 | 武汉科技大学 | Device for detecting upper arch deformation curve of crane main girder |
| CN201318935Y (en) * | 2008-12-12 | 2009-09-30 | 李代会 | Laser arch measuring instrument |
| CN201322606Y (en) * | 2008-12-16 | 2009-10-07 | 大连光程光电科技有限公司 | Laser measuring instrument for crane deformation |
| CN101556144A (en) * | 2009-04-15 | 2009-10-14 | 杨国慧 | Laser longitude and latitude multifunctional fast arc-measuring apparatus as well as measuring and calculating method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759350A (en) * | 2012-07-23 | 2012-10-31 | 武汉一冶钢结构有限责任公司 | High-altitude measuring method for construction of crane beams |
| CN104215192A (en) * | 2013-06-05 | 2014-12-17 | 中国铁建港航局集团有限公司 | Method for measuring inverted camber of prefabricated beam/slab |
| CN104392148A (en) * | 2014-12-15 | 2015-03-04 | 重庆交通大学 | Method for setting pre-camber of special cable-stayed bridge for long-span rail |
| CN104392148B (en) * | 2014-12-15 | 2017-05-17 | 重庆交通大学 | Method for setting pre-camber of special cable-stayed bridge for long-span rail |
| CN107718428A (en) * | 2017-10-30 | 2018-02-23 | 南京汇龙五金工具制造有限公司 | A kind of handware tool quick structure for assembling |
| CN113124769A (en) * | 2021-04-07 | 2021-07-16 | 西安热工研究院有限公司 | Method for measuring camber of large plate girder |
| CN113124769B (en) * | 2021-04-07 | 2024-05-07 | 西安热工研究院有限公司 | Method for measuring camber of girder |
| CN114136192A (en) * | 2021-11-19 | 2022-03-04 | 中铁四局集团有限公司 | Deformation measuring device and method for movable mould frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101915553B (en) | 2011-11-30 |
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Granted publication date: 20111130 Termination date: 20210831 |