عنوان

Experimental and numerical study of glass façade breakage behavior under fire conditions :

9789811364846

9811364842

9789811364839

9811364834

Experimental and numerical study of glass façade breakage behavior under fire conditions :

[Book]

fire safety engineering /

Yu Wang.

Singapore :

Springer,

2019.

1 online resource (xviii, 137 pages) :

illustrations (some color)

Springer theses,

2190-5053

"Doctoral thesis accepted by the Chinese Academy of Sciences, Beijing, China."

Includes bibliographical references.

Intro; Supervisor's Foreword; Abstract; Acknowledgements; Contents; Nomenclature; 1 Introduction; 1.1 Backgrounds and Underlying Physics; 1.2 Scientific Issued to Be Solved; 1.3 Research Content and Organization of the Thesis; References; 2 Experimental and Numerical Methods; 2.1 Experimental Methods; 2.1.1 Full-Scale Experimental System; 2.1.2 Small-Scale Experimental Apparatus; 2.2 Numerical Methods; 2.2.1 Stress Prediction; 2.2.2 Crack Prediction; References; 3 Breakage of Framing Glass Façades in Fire; 3.1 Introduction; 3.2 Experimental Design and Numerical Method

3.3 Experimental Results3.3.1 Heat Release Rate and Time of First Crack; 3.3.2 Glass Surface and Air Temperatures; 3.3.3 Heat Flux and Cracking Behavior; 3.3.4 Numerical Comparison; 3.4 Numerical Results; 3.4.1 Cases Design and Parameter Setting; 3.4.2 Simulation of Different Shaded Cases; 3.4.3 Simulation of Different Constrained Cases; 3.5 Summary; References; 4 Breakage of Point Supported Glass Façades in Fire; 4.1 Introduction; 4.2 Experimental Design; 4.3 Experimental Results and Discussion; 4.3.1 Time of First Crack; 4.3.2 Glass Surface and Gas Temperatures; 4.3.3 Heat Release Rate

4.3.4 Cracking and Fallout Behavior4.3.5 Comparison and Discussion; 4.4 Numerical Design; 4.4.1 Material; 4.4.2 Thermal Loading; 4.5 Numerical Results and Discussion; 4.5.1 Cases 1-9 Under Uniform Thermal Loading; 4.5.2 Cases 10-16 Under Non-uniform Thermal Loading; 4.6 Comparison and Discussion; 4.7 Summary; References; 5 Influence of Fire Location on Breakage Behavior; 5.1 Introduction; 5.2 Fire Location Change in x Direction; 5.2.1 Point-Supported Single Glazing; 5.2.2 Framing Double Glazing; 5.3 Fire Location Change in y Direction; 5.3.1 Cases Design; 5.3.2 Frame Supported Glass Façades

5.3.3 Point Supported Glass Façades5.3.4 Comparison and Discussion; 5.4 Summary; References; 6 Breakage Mechanism and Heat Transfer; 6.1 Introduction; 6.2 Glass Breaking Strength; 6.2.1 Experimental Design; 6.2.2 Glass Samples with Different Surface Treatments; 6.2.3 Glass Samples at Elevated Temperatures; 6.2.4 Analysis of Critical Temperature Differences; 6.3 Theoretical Breakage Prediction Model; 6.3.1 Single Glazing; 6.3.2 Double Glazing; 6.4 Summary; References; 7 Conclusions and Further Work; 7.1 Introduction; 7.2 Conclusions; 7.3 Recommendations for Further Research

Appendix A Publications of This ThesisAppendix B Awards During Ph. D. Study; Appendix C Attendance of Research Projects

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This book presents the comprehensive results of experimental and numerical investigations of glass façade breakage behavior under fire conditions. First of all, full-scale frame and point-supported glass façades, incorporating single, double and coated glazing, were tested under pool fire conductions. The results determined the effects of different glass frames, types of glass, and thermal shocks on breakage behavior. Small-scale tests, using the Material Testing System (MTS) 810, Netzsch Dilatometer and FE-SEM, were also performed at different temperatures to determine the basic mechanical properties of glazing. In addition, a three-dimensional dynamic model was developed to predict stress distribution, crack initiation and propagation, and has since been employed to identify the breakage mechanisms of different types of glass façade. The numerical results showed very good agreement with the experimental results and verified the model?s ability to accurately predict breakage. Lastly, a theoretical model based on incident heat flux was developed to predict the breakage time and heat transfer in glazing, which served to reveal the nature of interactions between fire and glass.

Springer Nature

com.springer.onix.9789811364846

Experimental and numerical study of glass façade breakage behavior under fire conditions.

9789811364839

Glass construction-- Fires and fire prevention.

Computer simulation.

Fire prevention.

System safety.

TEC045000

TNKF

TNKF

Wang, Yu

20200823233302.0

pn

[Book]

Y