کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
269835 | 504707 | 2014 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Behavior of hollow clay brick masonry walls during fire. Part 2: 3D finite element modeling and spalling assessment Behavior of hollow clay brick masonry walls during fire. Part 2: 3D finite element modeling and spalling assessment](/preview/png/269835.png)
• Thermo-elastic nonlinear model is adopted to simulate the fire behavior of walls.
• Heat propagation is modeled by three modes (conduction, convection and radiation).
• A criterion of type “crushing-detachment-buckling” is used to simulate the spalling.
• Scenario of spalling is satisfactorily described.
In the first part of this work [1], the fire behavior of masonry walls made with hollow fired-clay bricks was investigated experimentally. Several complex mechanisms occurred during firing are analyzed and identified. In particular, in cases of load-bearing walls, the local spalling of bricks is considered as an important factor governing the fire performance of masonry walls.In this second part, fired-clay masonry is investigated by theoretical approach with the finite element method in order to predict its behavior and its performance under fire exposure. For this purpose, a 3D numerical simulation is conducted with paying a particular attention to the spalling risks of alveolus bricks.
Journal: Fire Safety Journal - Volume 66, May 2014, Pages 35–45