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Register a new userNONLINEAR BEHAVIOUR AND BEHAVIOR OF R.C. DEEP CANTILEVER BEAMS
السلوك اللا خطي للجوائز العميقة من البيتون المسلح
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Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Structural Engineering
and research's language is
العربية
Authors
عبدالله مرعي( باحث )
Created by
Shamra Editor
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تم اجراء تحليل لا خطي لسلوك الجوائز العميقة بتأثير احمال مركزة عند اطرافه الحرة, و الهدف هو دراسة تصرف و سلوك الجوائز البيتونية لمساعدة المهندس الانشائي في تصميم الجوائز المماثلة و تنفيذ تفاصيل التسليح المناسبة. و من أهم المتغيرات التي أخذت بعين الاعتبار أثناء التحليل كانت ( نسبة طول الجائز لعمقه - عرض الجدار الساند - نسبة التسليح الجانبي الأفقي و الرأسي للجائز العميق و النسبة بينهما - المقاومة المميزة للبيتون المستخدم اضافة لادخال تأثير الخواص اللاخطية للبيتون و فولاذ التسليح).
This work theoretically investigates the nonlinear behaviour of reinforced concrete dee aimed topcantilever beams with concentrated loads at their free ends The study is aimed to in investigate the behaviour and respnse of such deep cantilever beams, and to help structural engineers to design and adopt appropriate reinforcement detailing of such elements. A complete review of literature on this subject is made.
References used
The Egyptian Cod for Design and Construction of Reinforced Concrete Structures
Smith K. N. and Vatsiotis A.S. “Shear Strengtf of Deep Beams”, ACI Jurnal, May – June 1982
Duan L., Wang F. and Chen W. “Flexural Rigidity of Reinforced Concrete Members” ACI Structural Jurnal, Vol. 86, July – August 1989
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يستعرض البحث أضرار الانفجارات على المباني والمنشآت الهندسية وآلية توصيف هذه الأضرار ونمذجة المنشآت باستخدام البرامج الحاسوبية لدراسة طرائق الترميم و توقع سلوك المنشأ المتضرر.
يحتوي البحث على دراسة قمنا بها حول تاثير الانفجارات على منشآت البيتون المسح والسلوك الفعلي لهذه المنشآت نتيجة الأضرار الحاصلة.
بالاضافة لعملية تقييم السلوك الحاصل وتوقع المشاكل المستقبلية ودراستها باستخدام النمذجة الرقمية باعتماد برامج النمذجة.
Using Finite Element Analysis (FEA), a comparison between
PushOver Analysis (POA) and Response Spectrum Analysis (RSA)
is done in this research to explore the application limits of POA on
the irregular frame buildings from reinforced concrete.the
comparison contains (failure mechanism, displacement, and
ductility).
This paper presents the shear behavior of lightweight concrete beams
without shear reinforcement produced by scoria aggregates. A total of nine
beams were tested under four-point loads, including three lightweight
concrete beams without steel fibers and six steel fiber reinforced
lightweight concrete beams.
Beams are considered as one of the most loaded concrete elements, which needs to
be strengthened either as a result of insufficient of concrete section, or insufficient rebar or
increased loads, or the result of a superficial steel or corrosion of
internal steel
reinforcement, and other reasons that we will mention them what we need to study this.
The damaged structural elements and their inability to function fully as a result of exposure
to different environmental factors damage materials and lead to lower resistance, or
because of the existence of of an executive defects or inappropriate investment for its,
leads to the need to rehabilitate maintenance and repair or reinforcement. So it was
resorting to strengthen either magnify sections or supply necessary reinforcement or steel
platelets linking external supported well to concrete section, and because of the difficulty
of execution the recent studies has been implemented on the use of more efficient material
which is concentrated fiber reinforced polymers.
We will present here to methods of strengthening the shear up to the global studies
conducted using these materials from polymers, which are characterized by high resistance
to tensile and large resistance to environmental factors and weather conditions and ease of
application in the specified permissible sites.
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