High level seismic/vibrational tests at the HDR: An overview

As part of the Phase II testing at the HDR Test Facility in Kahl/Main, FRG, two series of high-level seismic/vibrational experiments were performed. In the first of these (SHAG) a coast-down shaker, mounted on the reactor operating floor and capable of generating 1000 tonnes of force, was used to investigate full-scale structural response, soil-structure interaction (SSI), and piping/equipment response at load levels equivalent to those of a design basis earthquake. The HDR soil/structure system was tested to incipient failure exhibiting highly nonlinear response. In the load transmission from structure to piping/equipment significant response amplifications and shifts to higher frequencies occurred. The performance of various pipe support configurations was evaluated. This latter effort was continued in the second series of tests (SHAM), in which an in-plant piping system was investigated at simulated seismic loads (generated by two servo-hydraulic actuators each capable of generating 40 tonnes of force), that exceeded design levels manifold and resulted in considerable pipe plastification and failure of some supports (snubbers). The evaluation of six different support configurations demonstrated that proper system design (for a given spectrum) rather than number of supports or system stiffness is essential to limiting pipe stresses. Pipe strains at loads exceeding the design level eightfold were still tolerable, indicating that pipe failure even under extreme seismic loads is unlikely inspite of multiple support failures. Conservatively, an excess capacity (margin) of at least four was estimated for the piping system, and the pipe damping was found to be 4%. Comparisons of linear and nonlinear computational results with measurements showed that analytical predictions have wide scatter and do not necessarily yield conservative responses, underpredicting, in particular, peak support forces

24. Fachtagung 'Krankenhaus- und Medizintechnik, Umwelt- und Biotechnologie'

With 3,5'' diskette: Fachhochschule Giessen-Friedberg, Fachbereich Krankenhaus- und Medizintechnik, Umwelt- und Biotechnologie: Diplomarbeiten 1996-1997Available from FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Integrierte 1V-Analogelektronik fuer ein hochempfindliches Magnetfeld-Messsystem Abschlussbericht

SIGLEAvailable from TIB Hannover: F03B1162 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Komplexes Destillationsmodell: Modell zur rechnergestuetzten prozessbegleitenden Steuerung, Regelung und Optimierung von Destillations- und Rektifikationskolonnen Schlussbericht

SIGLEAvailable from TIB Hannover: F04B1172 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekArbeitsgemeinschaft Industrieller Forschungsvereinigungen 'Otto von Guericke' e.V. (AIF), Koeln (Germany)DEGerman

Entwurf und Realisierung eines Sende/Empfangs-Moduls in koplanaren MMIC (Monolithic Microwave Integrated Circuit)-Technik mit Multikomponenten-Chips Schlussbericht

Available from TIB Hannover: F04B371 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEArbeitsgemeinschaft Industrieller Forschungsvereinigungen 'Otto von Guericke' e.V. (AIF), Koeln (Germany)DEGerman

Durchstanztragfaehigkeit infolge unterschiedlicher Einbauteile Zusammenstellung der Versuchsergebnisse von Innenstuetzen mit h=25cm und p=1,53%

Available from TIB Hannover: F03B1600 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Untersuchung und Realisierung von MMIC (Monolithic Microwave Integrated Circuits)-Komponenten in Koplanarleitungstechnik Abschlussbericht

SIGLEAvailable from TIB Hannover: F00B573 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman

SEA, Knochenfestigkeit, Gelenkreibung. Schallemissionsueberwachung menschlicher Koerperteile im Rahmen der klinischen Diagnostik und Qualitaetskontrolle Abschlussbericht

SIGLEAvailable from TIB Hannover: DtF QN1(70,28) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

Messsystem zur Erfassung biomechanischer Groessen Schlussbericht

SIGLEAvailable from TIB Hannover: F03B1371 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Videounterstuetzte Gangbildanalyse Abschlussbericht

SIGLEAvailable from TIB Hannover: DtF QN1(89,9) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman