Wolfram Schmidt  Henricus Jozef Hubertus Brouwers  Hans‐Carsten Kühne  Birgit Meng 《Beton- und Stahlbetonbau》2013,108(1):13-21

  相似文献   

    

Frank Pohle  Wolfram Jger 《Construction and Building Materials》2003,17(8):651-667

This contribution provides insight into the characteristics of the masonry of the historical Frauenkirche and the requirements for its reconstruction. Comprehensive material studies were performed in the course of preparation for and implementation of the project, and guidelines for evaluation, design and construction were established on the basis of those studies. The material used for the reconstruction is sandstone, coming from quarries in the immediate vicinity, as well as mortar composed on a lime basis with hydraulic additives. The execution is monitored within the scope of a quality management system specially created for the reconstruction project. This system simultaneously provides a detailed documentation of the building materials used in the project.  相似文献   

    

Wolfram Kuhlmann  Melanie Engel  Thomas Kempen  Hans‐Jürgen Krause 《Bautechnik》2011,88(6):390-395

  相似文献   

    

Wolfram Kuhlmann  Thomas Kempen  Hans‐Jürgen Krause 《Bautechnik》2011,88(2):121-131

  相似文献   

    

Wolfram Kuhlmann  Christiane Butz 《Stahlbau》2009,78(7):484-491

Aufgrund ihrer schlanken Bauweise gelten viele Fußgängerbrücken bei personeninduzierten Belastungen als schwingungsanfällig. Die eventuelle Ausstattung einer Brücke mit zusätzlichen Dämpfungsmaßnahmen sollte bereits in der Planungsphase berücksichtigt werden, damit bei Gewissheit, dass Maßnahmen notwendig sind, die Fertigstellung und Eröffnung der Brücke nicht verzögert wird. Im vorliegenden Beitrag wird am Beispiel des August‐Wilhelm‐Stegs in Oranienburg das Vorgehen zwischen Erkennen einer möglichen Schwingungsanfälligkeit, Prüfung der Erforderlichkeit schwingungsdämpfender Maßnahmen, Auslegung und Einbau sowie Überprüfung der Wirksamkeit erläutert. Dabei werden insbesondere die praktischen Aspekte bei der Auslegung der Massendämpfer erläutert. The increasing comfort of footbridges with mass dampers is exemplary shown with the August‐Wilhelm‐Steg in Oranienburg, Germany. Many footbridges are susceptible to pedestrian induced vibrations due to their slender design. Hence, an equipment with additional damping devices on demand should be considered already in the preliminary design phase to avoid unnecessary delays of the erection and opening, if the damping devices are required. In this article the procedure of identifying a potential vibration susceptibility, checking the necessity of damping devices, design and installation as well as checking the working efficiency of them are explained using the example of the August‐Wilhelm‐Steg in Oranienburg. Particular emphasis is laid on the practical aspects when designing tuned mass dampers.  相似文献   

    

Wolfram Kuhlmann  Michael Mistler 《Beton- und Stahlbetonbau》2005,100(7):561-573

Towers under Bell and Earthquake Loads according to the old and new DIN 4178 and 4149 Due to their slenderness and their function bell towers are especially exposed to dynamic loads. These loads are the dynamic loads due to the ringing of the bells (DIN 4178 of 1978) and earthquake loads (DIN 4149 of 1981). The two for these load cases relevant codes have been updated to the current technical state of knowledge and have been published in April 2005. In this article the differences between the old and new versions of the codes are explained by two selected examples. The consequences of rehabilitation measures of the bells are also considered. It was found that the new versions of the codes lead to higher loads of the towers. To design new towers and to investigate existing ones it is therefore required to use the updated versions of the codes to obtain reliable results.  相似文献   

Ernst Ankermann (2004) Sterben zulassen—Selbstbestimmung und ärztliche Hilfe am Ende des Lebens. Ernst Reinhardt Verlag, München Basel, 188 Seiten, ISBN 3-497-01693-4, 14,90 €     

Wolfram Eberbach 《Ethik in der Medizin》2004,16(3):308-312

  相似文献   

Professor Nepomuk Zöllner 70 Jahre     

G. Wolfram 《European Journal of Lipid Science and Technology》1993,95(2):82-82

  相似文献   

Harmonization of structural fire precautions in europe: Current situation and projected measures     

Wolfram Becker 《火与材料》1979,3(1):23-26

  相似文献   

Studies on the rigidity of gelatine gels     

Ildik Tar  Ervin Wolfram 《Polymer International》1979,11(2):97-99

  相似文献