CN100422444C - Method for measuring and controlling internal steel wire length error of main cable bundle for suspension bridge - Google Patents
Method for measuring and controlling internal steel wire length error of main cable bundle for suspension bridge Download PDFInfo
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- CN100422444C CN100422444C CNB2006100400438A CN200610040043A CN100422444C CN 100422444 C CN100422444 C CN 100422444C CN B2006100400438 A CNB2006100400438 A CN B2006100400438A CN 200610040043 A CN200610040043 A CN 200610040043A CN 100422444 C CN100422444 C CN 100422444C
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- steel wire
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Abstract
The present invention relates to a method for measuring and controlling length error of an inner steel wire of a main cable beam strand of a suspension bridge. The present invention is characterized in that a plurality of inner strand error control steel wires are manufactured and are evenly distributed at the external periphery of the beam with the original standard wires, the total length of each inner strand error control steel wire is divided into a plurality of section length, and marks are marked on each inner strand error control steel wire in each section. Before a rope is manufactured, start points of the inner strand error control steel wires are aligned; in the process of manufacturing the rope, standard wires serves as a standard, and each inner strand error control steel wire and the deviation quantity thereof are respectively measured, that is the deviation quantity is the accurate error of the length of single steel wire in a beam strand; according to the measuring result, the section value of the inner strand error control steel wires in the strand is analyzed, and according to analyzing structure, the error of the length of each steel wire in the beam strand is controlled by adjusting the back tension of the steel wires in the process of manufacturing the rope. The method can be used for controlling the length of a main cable beam strand of a suspension bridge, and can control the error of the length of the single steel wire in the main cable beam strand of the suspension bridge.
Description
Technical field:
The present invention relates to a kind of method of measuring and controlling internal steel wire length error of main cable bundle for suspension bridge, be mainly used in the error in length of measuring and control main rope of suspension bridge bundle thigh inner wire.Belong to the bridge construction technical field.
Background technology:
Before the present invention makes,, normally on the cross section is the corner angle of hexagonal main push-towing rope bundle thigh, a standard silk and mark silk are set in order to control the length of main rope of suspension bridge bundle thigh.This labeling method can only be used to control the length of main rope of suspension bridge bundle thigh, and can not control the error in length of individual wire in the main rope of suspension bridge bundle thigh.This can cause main rope of suspension bridge bundle thigh in use owing to burst discontinuity that interior each steel wire length differs and causes, and makes main push-towing rope bundle thigh can not reach projected life and load requirement.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, a kind of method of measuring and controlling internal steel wire length error of main cable bundle for suspension bridge is provided.
The object of the present invention is achieved like this: a kind of method of measuring and controlling internal steel wire length error of main cable bundle for suspension bridge, it is characterized in that: make error control steel wire in the many thighs, be distributed in bundle burst neighboring together with original standard silk, error control steel wire length overall in the every thigh is divided into a plurality of section lengths, in every thigh, make a mark every a segmentation on the error control steel wire, before the system rope starting point of error control steel wire in the many thighs is alignd, in system rope process, with the standard silk is benchmark, measure error control steel wire and its bias in the every thigh respectively, be bundle burst interior individual wire length trueness error, fragmentation value according in the measurement result halved tie thigh strand of interior error control steel wire is analyzed, according to analysis result, by the adjustment of steel wire backward pull in the system rope process being controlled the length of bundle strand interior each steel wire.
This method can be used to control the length of main rope of suspension bridge bundle thigh, can control the error in length of individual wire in the main rope of suspension bridge bundle thigh again.In use each steel wire is stressed evenly to guarantee main rope of suspension bridge bundle thigh, has guaranteed the safe operating life and the load requirement of main push-towing rope bundle thigh.
Description of drawings:
Fig. 1 is for adopting the main push-towing rope bundle thigh sectional schematic diagram of the inventive method.
Fig. 2 is error control steel wire deployed condition schematic diagram in the thigh that the inventive method adopted.
The specific embodiment:
Referring to Fig. 1, in order to measure and control the method for internal steel wire length error of main cable bundle for suspension bridge, the present invention has made error control steel wire 3 in 10 thighs, be distributed in bundle burst neighboring together with original standard silk 1 and mark silk 2, with the length precision of different parts steel wire in the detection beam thigh manufacturing process.
Referring to Fig. 2, error control steel wire length overall is divided into seven sections section lengths (having three among the figure) in strand, in every thigh, make a mark 4 every a segmentation on the error control steel wire, before the system rope starting point of error control steel wire in 10 thighs is alignd, in system rope process, with the standard silk is benchmark, measure error control steel wire and its bias in 10 thighs respectively, be bundle burst interior individual wire length trueness error, fragmentation value according in the measurement result halved tie thigh strand of interior error control steel wire is analyzed, according to analytical structure, by the adjustment of steel wire backward pull in the system rope process being controlled the error in length of bundle strand interior each steel wire.
Claims (1)
1. measure and the method for control internal steel wire length error of main cable bundle for suspension bridge for one kind, it is characterized in that: make error control steel wire in the many thighs, be distributed in bundle burst neighboring together with original standard silk, error control steel wire length overall in the every thigh is divided into a plurality of section lengths, in every thigh, make a mark every a segmentation on the error control steel wire, before the system rope starting point of error control steel wire in the many thighs is alignd, in system rope process, with the standard silk is benchmark, measure error control steel wire and its bias in each root thigh respectively, be bundle burst interior individual wire length trueness error, fragmentation value according in the measurement result halved tie thigh strand of interior error control steel wire is analyzed, according to analysis result, by the adjustment of steel wire backward pull in the system rope process being controlled the error in length of bundle strand interior each steel wire.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100400438A CN100422444C (en) | 2006-04-29 | 2006-04-29 | Method for measuring and controlling internal steel wire length error of main cable bundle for suspension bridge |
Applications Claiming Priority (1)
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CNB2006100400438A CN100422444C (en) | 2006-04-29 | 2006-04-29 | Method for measuring and controlling internal steel wire length error of main cable bundle for suspension bridge |
Publications (2)
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CN1844584A CN1844584A (en) | 2006-10-11 |
CN100422444C true CN100422444C (en) | 2008-10-01 |
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CNB2006100400438A Active CN100422444C (en) | 2006-04-29 | 2006-04-29 | Method for measuring and controlling internal steel wire length error of main cable bundle for suspension bridge |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101949130B (en) * | 2010-04-27 | 2011-12-07 | 江苏法尔胜新日制铁缆索有限公司 | Method for manufacturing standard wires under control of reference wires |
CN102146659A (en) * | 2011-03-03 | 2011-08-10 | 重庆万桥交通科技发展有限公司 | Method for controlling length of main cable strand |
CN106087748B (en) * | 2016-06-17 | 2018-08-31 | 中铁大桥勘测设计院集团有限公司 | A kind of steel strand stay cable Suo Fangfa |
CN112411388A (en) * | 2020-11-26 | 2021-02-26 | 西南交通大学 | Alignment erection method for main cable strand marks of suspension bridge based on multi-reference cable strands |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2675523A1 (en) * | 1991-04-22 | 1992-10-23 | Scetauroute | Stay cable, in particular for cable-stayed bridge, consisting of a bundle of identical strands each formed by several wires (filaments) |
JP2000282409A (en) * | 1999-03-30 | 2000-10-10 | Se Corp | Method and device for bundling tendon |
-
2006
- 2006-04-29 CN CNB2006100400438A patent/CN100422444C/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2675523A1 (en) * | 1991-04-22 | 1992-10-23 | Scetauroute | Stay cable, in particular for cable-stayed bridge, consisting of a bundle of identical strands each formed by several wires (filaments) |
JP2000282409A (en) * | 1999-03-30 | 2000-10-10 | Se Corp | Method and device for bundling tendon |
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CN1844584A (en) | 2006-10-11 |
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