FR2750498B1 - Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique - Google Patents

Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique

Info

Publication number: FR2750498B1
Authority: FR; France
Prior art keywords: residual voltage; ultrasonic measurement; metal pre; stress bar; stress
Prior art date: 1996-07-01
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.): Expired - Lifetime

Application number

FR9608170A

Other languages

English (en)

Other versions

FR2750498A1 (fr

Inventor

Bruno Lancia

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Freyssinet International STUP SA

Original Assignee

Freyssinet International STUP SA

Priority date (The priority date 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 date listed.)

1996-07-01

Filing date

1996-07-01

Publication date

1998-09-04

1996-07-01 Application filed by Freyssinet International STUP SA filed Critical Freyssinet International STUP SA

1996-07-01 Priority to FR9608170A priority Critical patent/FR2750498B1/fr

1998-01-02 Publication of FR2750498A1 publication Critical patent/FR2750498A1/fr

1998-09-04 Application granted granted Critical

1998-09-04 Publication of FR2750498B1 publication Critical patent/FR2750498B1/fr

2016-07-01 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
- G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
General Physics & Mathematics (AREA)
Force Measurement Appropriate To Specific Purposes (AREA)
Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

FR9608170A 1996-07-01 1996-07-01 Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique Expired - Lifetime FR2750498B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
FR9608170A FR2750498B1 (fr)	1996-07-01	1996-07-01	Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR9608170A FR2750498B1 (fr)	1996-07-01	1996-07-01	Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique

Publications (2)

Publication Number	Publication Date
FR2750498A1 FR2750498A1 (fr)	1998-01-02
FR2750498B1 true FR2750498B1 (fr)	1998-09-04

Family

ID=9493595

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR9608170A Expired - Lifetime FR2750498B1 (fr)	1996-07-01	1996-07-01	Procede pour mesurer par ultrasons la tension residuelle d'une barre de precontrainte metallique

Country Status (1)

Country	Link
FR (1)	FR2750498B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2801670B1 (fr) *	1999-11-29	2002-02-01	Freyssinet Intertional Stup	Procede pour mesurer par ultrason la tension residuelle d'une barre de precontrainte
GB0815038D0 (en) *	2008-08-18	2008-09-24	Seaman Peter	Improvements in or relating to analysing structual memebers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4333351A (en) *	1980-02-25	1982-06-08	Raymond Engineering Inc.	Method and apparatus for measuring the residual tension in a stud or a bolt
US4292835A (en) *	1980-02-25	1981-10-06	Raymond Engineering, Inc.	Calibration apparatus and method for strain measuring instruments
FR2507232A1 (fr) *	1981-06-09	1982-12-10	Freyssinet Int Stup	Dispositif de mise en tension de barres de precontrainte et de determination de cette tension
LU84553A1 (fr) *	1982-12-24	1984-10-22	Benoit De Halleux	Procede de mesure de contrainte dans un milieu et element et assemblage pour la mise en oeuvre de ce procede
PL152940B1 (en) *	1986-04-18	1991-02-28		Method of measuring internal steresses in material of an object under test
JP2944004B2 (ja) *	1991-04-30	1999-08-30	日立建機株式会社	超音波ボルト軸力測定装置

1996
- 1996-07-01 FR FR9608170A patent/FR2750498B1/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR2750498A1 (fr)	1998-01-02

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Legal Events

Date	Code	Title	Description
2015-06-25	PLFP	Fee payment	Year of fee payment: 20