مشخصات مقاله:
عنوان فارسی مقاله:
رفتار منگنه زنی (پانچ، سوراخ کردن) دال های RC تقویت و اصلاح شده با CFRP
عنوان انگلیسی مقاله:
Punching behavior of strengthened and repaired RC slabs with CFRP
کلمات کلیدی مقاله:
تعمیر، تقویت، CFRP، اسکلت RC، پانچ
مناسب برای رشته های دانشگاهی زیر:
مهندسی عمران
مناسب برای گرایش های دانشگاهی زیر:
سازه و مهندسی هیدرولیک
وضعیت مقاله انگلیسی و ترجمه:
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فهرست مطالب:
چکیده
1.مقدمه
2.برنامه آزمایشی
1.2 خصوصیات مواد
2.2 طراحی دال های آزمایش
3. نتایج تجربی
4.نتیجه گیری ها
قسمتی از مقاله انگلیسی و ترجمه آن:
1. Introduction
The civil engineering field is in a constant evolution, despite this, we find a large number of civil engineering structures or buildings are found degraded for different reasons, such as damaged due to accidents, building redevelopment. More, there are also a large number of pathologies in civil engineering structures whose origins can be design errors, mechanical, physicochemical, accidental. To solve these problems, two main solutions available: demolition or repair, the latter solution is the perfect solution. One of the applications that can successfully repair and reinforce structural elements made of reinforced concrete (such as columns) is the use of composite materials, such as external reinforcement (casing) [1] to plead to extreme mechanical actions (earthquake) where environmental (corrosion) [2]. This field of application is expanding more and more to other types of structures working mainly in flexion, such as slabs and beams [3,4]. With regard to this last type, more lines of research are expanding [5,6]. The slabs are generally reinforced on an important part of their surface) [7,8] by a reinforcement in the form of bands [9–12]. Composites are glued to their tension surfaces with the aim of repairing and improving their bearing capacity. This experimental work was carried out in the laboratory of Civil Engineering and Hydraulics (LGCH) and Architectural laboratory of the University of Guelma 8 May 1945(Algeria). In this paper, Its main purpose is to study the behavior under punching of reinforced concrete slabs, the work has been carried an experimental investigation on reinforced concrete slabs strengthened and repaired with Carbon fiber reinforced polymer. The slabs strengthen by surface of CFRP of 24% of the surface of the slab, with different orientations of composite layer (0 –45 –0 /90 –45 /135 ). The second series, we repaired the RC slab after preload (60–80%) of ultimate load of control slab.