نشست ساختمان با فونداسیون سطحی ناشی از روانگرایی
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نشست ساختمان با فونداسیون سطحی ناشی از روانگرایی

عنوان فارسی مقاله: نشست و شیب ساختمان با فونداسیون های سطحی ناشی از روانگرایی بر اساس مشاهدات میدانی و آزمایشگاهی
عنوان انگلیسی مقاله: Liquefaction-induced settlement and tilting of buildings with shallow foundations based on field and laboratory observation
مجله/کنفرانس: دینامیک خاک و مهندسی زلزله – Soil Dynamics and Earthquake Engineering
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: خاک و پی یا ژئوتکنیک، سازه
کلمات کلیدی فارسی: روانگرایی، نشست، شیب، ساختمان، فونداسیون سطحی، تاریخچه، تست سانتریفیوژ
کلمات کلیدی انگلیسی: Liquefaction, Settlement, Tilting, Building, Shallow foundation, Case history, Centrifuge test
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master journals – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.soildyn.2018.04.054
دانشگاه: Tokyo Soil Research – Co. Ltd. – 2-11-16 Higashigaoka – Japan
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2018
ایمپکت فاکتور: 2.338 در سال 2017
شاخص H_index: 70 در سال 2019
شاخص SJR: 1.075 در سال 2017
شناسه ISSN: 0267-7261
شاخص Quartile (چارک): Q1 در سال 2017
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 12
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
کد محصول: E8838
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Field observation


3- Observations from laboratory experiments


4- Concluding remarks


References

نمونه متن انگلیسی مقاله

Abstract


In order to examine relative importance of key parameters affecting liquefaction-induced settlement and tilting of buildings with shallow foundations, earthquake reconnaissance studies and centrifuge experiments were made and their results were compared with those of similar previous studies. It is shown that: (1) The liquefactioninduced relative settlement and tilting of shallow foundations tend to increase with increasing contact pressure and ground settlement, and with decreasing groundwater table depth and thickness of the non-liquefied crust; (2) The tilt angle of the building also tends to increase with increasing eccentric mass and distance ratio; and (3) The safety factors against vertical load and dynamic overturning moment are key indicators to estimate liquefaction-induced damage to buildings with rigid shallow foundations.


Introduction


During the 2011 Tohoku Earthquakes, extensive soil liquefaction occurred in many reclaimed lands of the Tokyo Bay area and along the Tone River basin, causing excessive settlement and titling of many residential wooden houses and low-rise reinforced concrete (RC) buildings founded on shallow foundations. Similar damage to residential houses was also observed not only on reclaimed lands but also on natural deposits during recent earthquakes such as the 2011 Christchurch and 2016 Kumamoto earthquakes. Despite many reconnaissance and laboratory studies on soil liquefaction (e.g., [3,6,8,9,11,13,14]), the various factors and their effects leading to settlement of buildings with shallow foundations have not been thoroughly understood to date. In addition, most of the previous studies concentrated only on building settlement, overlooking building tilt failure which is equally or even more important when considering the serviceability of the building after the quake, i.e., performance-based seismic design of buildings with shallow foundations. The objective of this paper is therefore to examine relative importance of key parameters affecting not only settlement but also tilting of buildings with shallow foundations founded on liquefiable soils based on both field observation and laboratory experiments.

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