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العنوان
NON-LINEAR ANALYSIS of BENT GLASS CURTAIN WALLS /
المؤلف
Abd El Kariem, Sarah Said Mamdouh.
هيئة الاعداد
باحث / سارة سعيد ممدوح عبد الكريم
مشرف / مصطفى مرسي الشامي
مناقش / محمود حسن البغدادى
مناقش / كامل سيد أحمد قنديل
الموضوع
Metal Curtain Walls. Curtain Walls.
تاريخ النشر
2024.
عدد الصفحات
151 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة المدنية والإنشائية
تاريخ الإجازة
19/3/2024
مكان الإجازة
جامعة المنوفية - كلية الهندسة - الهندسة المدنية
الفهرس
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Abstract

A Bent Laminated Glass has recently been used in the residential and
commercial structures, but its design isn’t present in the curves and tables at
the ASTM E1300. Therefore, it has become a need for architects to use the
basis for this type of glass. To the best of knowledge authors, no one has
studied the bent laminated glass in detail. Architectural glass designers in the
United States and many other parts of the world have adopted ASTM
International Standard E1300, Standard Practices for Determining Load
Resistance of Glass in Buildings, and Glass Structures Load Resistance (LR)
as the primary source for determining The ASTM E1300 non-factorial stress
diagram (NFL) for flat rectangular glass sheets is based on surface stress
determined using a nonlinear finite difference model developed in the early
1980s. The 2016 edition of ASTM E1300 allows analytical methods to be
used to determine the LR of glass lites. The main analysis tools available to
engineers today are based on the finite element method rather than the finite
difference method. The authors developed a nonlinear finite element model
and applied a glass failure prediction model (GFPM) to the output of the
nonlinear finite element model to simulate flat rectangular glass lites and Bent
glass lites. The authors calculated the failure probability and LR.
Analysis results using three nonlinear finite element models are described
concerning the requirements of ASTM E1300.
Bent glass lites are used for architectural requirements as curtain walls
in modern buildings and are exposed to wind pressure. In this work,
experimental tests and finite element analysis are performed to study the
behavior of Bent glass sheets under uniform compressive loading. A thin Bent
aluminum lite simulating a monolithic glass lite was tested [1] because of the
similarity of Young’s modulus and Poisson’s ratio of aluminum and glass. Four
Bent Glass Panes with different thicknesses were experimentally tested for
failure under compression load. Experimental results were compared with
ii
finite element; FE analysis with the Abaqus program. To simulate a uniform
pressure load on the test lite, the author created a closed chamber as a support
system for the test lite and glued it to the chamber with structural silicone. The
internal air in the chamber was evacuated to simulate a positive pressure on the
outer surface of the lite under test. A displacement transducer and strain gauge
were attached to the tested system to measure the displacement and strain as
the pressure in the chamber decreased. A numerical sensitivity analysis was
performed using ABAQUS 6.14 software to find suitable element types and
support conditions that the experimental model could simulate. The results of
the analysis were presented and discussed. Current research proves that the
shell element is the best element capable of simulating a thin Bent glass lite.