Evaluating and comparing laboratory, regulatory and numerical methods for determining the creep in dense, light and ordinary concrete

سال انتشار: 1396
محل انتشار: کنفرانس بین المللی عمران،معماری و شهرسازی ایران معاصر
کد COI اختصاصی: CICEAUD01_0347
زبان مقاله: انگلیسی
تعداد مشاهده: 304

نویسندگان

MSc, Civil Engineering, Islamic Azad University, Bandar Abbas Branch, Bandar Abbas, Iran

Assistant Professor, Department of Engineering, Amir Kabir University of Technology

چکیده

Creep has a significant impact on the various issues of the reinforced concrete structure, and the creep-induced deformations are usually two dentures, equal to theinstantaneous deformation of the concrete. Creep in concrete generally refers to the long-term deformation of the material under load and depends on various factors such as the type of concrete components, temperature, humidity and the amount of applied stress. The present study is an experimental, laboratory and numerical study on the creep and contraction behavior of high-strength concrete and other concrete, including conventional concrete and lightweight concrete. Change of time-dependent forms (creep) in laboratory samples with different compressive strengths under constant axial load And continuously evaluated under conditions of temperature andhumidity. The modeling was done in ABAQUS software and the results were compared with laboratory values. According to the results of the study, the maximum difference rate for older concrete is that concrete specimens with lower compressive strength exhibit a lower difference between the theoretical and laboratory results.

کلیدواژه ها

creep, concrete, laboratory, ABAQUS

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