FIRE ANALYSIS OF REINFORCED CONCRETE PRECAST TUNNEL LINING CONSIDERING THE SPALLING EFFECT

被引:0
|
作者
Bettini, N. [1 ]
Felicetti, R. [2 ]
Lilliu, G. [3 ]
Meda, A. [4 ]
Riva, P. [1 ]
机构
[1] Univ Bergamo, Dept Engn, Dalmine, Italy
[2] Politecn Milan, Civil & Environm Engn, I-20133 Milan, Italy
[3] TNO DIANA BV, Delft, Netherlands
[4] Univ Roma Tor Vergata, Civil Engn & Comp Sci Dept, Rome, Italy
关键词
fire analysis; tunnelling; concrete spalling;
D O I
暂无
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Analysis aiming to predict the behaviour of segmental lining tunnels involve several aspect with high level of complexity. Since the thermal dilatation of the lining is resisted by the soil confinement, it become very important to predict not only the bearing capacity but also the stiffness of the structure during the fire exposure. On this point of view, possible spalling phenomena have to be considered in the analyses. The paper presents the results of non linear numerical analyses on a precast segmental lining tunnel considering the presence of spalling.
引用
收藏
页码:2407 / 2408
页数:2
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