DE20300267U1 - Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device - Google Patents

Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device

Info

Publication number
DE20300267U1
DE20300267U1 DE20300267U DE20300267U DE20300267U1 DE 20300267 U1 DE20300267 U1 DE 20300267U1 DE 20300267 U DE20300267 U DE 20300267U DE 20300267 U DE20300267 U DE 20300267U DE 20300267 U1 DE20300267 U1 DE 20300267U1
Authority
DE
Germany
Prior art keywords
resistance
resistance layer
pipe
measuring device
jacking
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.)
Expired - Lifetime
Application number
DE20300267U
Other languages
German (de)
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.)
Doepper Ulrich Dipl-Ing De
Berding Beton GmbH
Original Assignee
DW BETONROHRE GmbH
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.)
Filing date
Publication date
Application filed by DW BETONROHRE GmbH filed Critical DW BETONROHRE GmbH
Priority to DE20300267U priority Critical patent/DE20300267U1/en
Publication of DE20300267U1 publication Critical patent/DE20300267U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0033—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining damage, crack or wear
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0083—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by measuring variation of impedance, e.g. resistance, capacitance, induction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
    • G01N33/383—Concrete or cement

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The device includes a resistance measuring device (9) for measuring changes in electrical resistance. A resistive layer (5) such as a conductive film or lacquer attached to the component being monitored, and connected to the resistance measuring device via wires (7). The resistance layer is arranged in a ring on at least one surface (2) of a driven pipe (1), and passes into the internal space (6) of the driven pipe (1) for connection to the resistance measuring device.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (7)

1. Einrichtung zur Spannungs- und Rissüberwachung an Bauteilen aus Stahl- oder Spannbeton, insbesondere Vortriebsrohren (1), im wesentlichen umfassend
  • - ein Widerstandsmessgerät (9) zur Messung der Änderung des ohmschen Widerstandes,
  • - eine Widerstandsschicht (5), wie Leitfolie, Leitfilm oder Leitlack, die am oder im Bauteil angebracht ist und mit dem Widerstandsmessgerät (9) über Leiter (7) verbunden ist,
dadurch gekennzeichnet, dass die Widerstandsschicht (5) ringförmig an zumindest einer Stirnfläche (2) eines Vortriebsrohres (1) angeordnet und zur Verbindung mit einem Widerstandsmeßgerät (9) bis zum Innenraum (6) des Vortriebsrohres (1) geführt ist.1. Device for tension and crack monitoring on components made of steel or prestressed concrete, in particular jacking pipes ( 1 ), essentially comprehensive
  • - a resistance measuring device ( 9 ) for measuring the change in the ohmic resistance,
  • a resistance layer ( 5 ), such as a conductive foil, conductive film or conductive lacquer, which is attached to or in the component and is connected to the resistance measuring device ( 9 ) via conductors ( 7 ),
characterized in that the resistance layer ( 5 ) is arranged in a ring on at least one end face ( 2 ) of a jacking pipe ( 1 ) and is guided for connection to a resistance measuring device ( 9 ) to the interior ( 6 ) of the jacking pipe ( 1 ). 2. Einrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Widerstandsschicht (5) an zumindest einer Stirnfläche (2) des Vortriebsrohres (1) in Sektoren unterteilt und jeweils an Anfang und Ende jedes Sektors mit einem Widerstandsmeßgerät (9) verbindbar ist.2. Device according to claim 1, characterized in that the resistance layer ( 5 ) on at least one end face ( 2 ) of the jacking pipe ( 1 ) is divided into sectors and can be connected to a resistance measuring device ( 9 ) at the beginning and end of each sector. 3. Einrichtung gemäß einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die Oberfläche des Bauteils unterhalb der Widerstandsschicht (5) mit Zementleim abgeglichen ist.3. Device according to one of claims 1 to 2, characterized in that the surface of the component below the resistance layer ( 5 ) is matched with cement paste. 4. Einrichtung gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen der Widerstandsschicht (5) und der Bauteiloberfläche eine isolierende Zwischenschicht vorgesehen ist.4. Device according to one of claims 1 to 3, characterized in that an insulating intermediate layer is provided between the resistance layer ( 5 ) and the component surface. 5. Einrichtung gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Widerstandsfläche (5) durch einen Schutzfilm gegen die äußere Umgebung abgeschlossen ist. 5. Device according to one of claims 1 to 4, characterized in that the resistance surface ( 5 ) is closed by a protective film against the external environment. 6. Einrichtung nach Anspruch 1 zur Verwendung bei Vortriebsrohren (1), bei denen zumindest während des Vortriebs zwischen den Stirnflächen (2) aufeinanderfolgender Vortriebsrohre (1) Druckübertragungsmittel (3) angeordnet sind, dadurch gekennzeichnet, dass die Widerstandsschicht (5) erdseitig außerhalb der Druckübertragungsmittel (3) angeordnet ist.6. Device according to claim 1 for use in jacking pipes ( 1 ), in which at least during jacking between the end faces ( 2 ) of successive jacking pipes ( 1 ) pressure transmission means ( 3 ) are arranged, characterized in that the resistance layer ( 5 ) on the earth side outside Pressure transmission means ( 3 ) is arranged. 7. Einrichtung nach Anspruch 6, wobei die Druckübertragungsmittel (3) in Sektoren unterteilt sind, dadurch gekennzeichnet, dass die Widerstandsschicht (5) in den Zwischenräumen (4) zwischen den einzelnen Sektoren der Druckübertragungsmittel (3) zum Innenraum (6) des Vortriebsrohres (1) geführt ist.7. Device according to claim 6, wherein the pressure transmission means ( 3 ) are divided into sectors, characterized in that the resistance layer ( 5 ) in the spaces ( 4 ) between the individual sectors of the pressure transmission means ( 3 ) to the interior ( 6 ) of the jacking pipe ( 1 ) is performed.
DE20300267U 2003-01-08 2003-01-08 Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device Expired - Lifetime DE20300267U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20300267U DE20300267U1 (en) 2003-01-08 2003-01-08 Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20300267U DE20300267U1 (en) 2003-01-08 2003-01-08 Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device

Publications (1)

Publication Number Publication Date
DE20300267U1 true DE20300267U1 (en) 2003-03-13

Family

ID=7978928

Family Applications (1)

Application Number Title Priority Date Filing Date
DE20300267U Expired - Lifetime DE20300267U1 (en) 2003-01-08 2003-01-08 Stress and flaw monitoring device for reinforced concrete or prestressed concrete, e.g. driven pipe has ring-shaped resistance layer on surface of pipe, connected to resistance-measuring device

Country Status (1)

Country Link
DE (1) DE20300267U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836319A (en) * 2017-03-08 2017-06-13 浙江大学 Pile for prestressed pipe equadag coating defect detecting device and detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836319A (en) * 2017-03-08 2017-06-13 浙江大学 Pile for prestressed pipe equadag coating defect detecting device and detection method

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20030417

R081 Change of applicant/patentee

Owner name: BERDING BETON GMBH, DE

Free format text: FORMER OWNER: DW BETONROHRE GMBH, 41542 DORMAGEN, DE

Effective date: 20030318

Owner name: DOEPPER, ULRICH, DIPL.-ING., DE

Free format text: FORMER OWNER: DW BETONROHRE GMBH, 41542 DORMAGEN, DE

Effective date: 20030318

R150 Term of protection extended to 6 years

Effective date: 20060113

R151 Term of protection extended to 8 years

Effective date: 20081203

R081 Change of applicant/patentee

Owner name: DOEPPER, ULRICH, DIPL.-ING., DE

Free format text: FORMER OWNER: DW BETONROHRE GMBH,ULRICH DOEPPER, , DE

Effective date: 20100528

Owner name: BERDING BETON GMBH, DE

Free format text: FORMER OWNER: DW BETONROHRE GMBH,ULRICH DOEPPER, , DE

Effective date: 20100528

R152 Term of protection extended to 10 years

Effective date: 20110214

R071 Expiry of right
R071 Expiry of right