کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
267595 504406 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Double-layer floor to mitigate in-structure shock of underground structures: A conceptual design
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Double-layer floor to mitigate in-structure shock of underground structures: A conceptual design
چکیده انگلیسی

In-structure shock poses a great threat to equipment and devices in underground protective structures, preventing them from accomplishing designed tasks. Unlike traditional mitigation methods such as backfilling soft soil or sand around the buried structures and adding shock-isolation cushions to the equipment, a new structural design of underground structures are proposed by constructing an isolation slab, to which the equipment is attached. The excitation mechanism for the equipment attached to the slab is altered from the combination of flexural deflection and rigid body motion of the traditional floor to the response of the isolation slab. Analysis indicates that vertical shock level experienced by the equipment is effectively reduced. The in-structure shock mitigation approach proposed in the present study provides a supplement to the existing shock mitigation methods for underground structures.


► An isolation slab is added to a traditional underground structure.
► The excitation mechanism for equipment inside the underground structure is altered.
► In-structure shock in vertical direction is effectively mitigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 35, February 2012, Pages 314–321
نویسندگان
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