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Register a new userOptimal Strengthening Design Of Reinforced Concrete Frames Using Steel Jacket Technique
التصميم الأمثل لتدعيم الإطارات البيتونية المسلحة باستخدام تقنية التغليف بالقميص الفولاذي
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Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Structural Engineering
and research's language is
العربية
Created by
Shamra Editor
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تم في هذه الدراسة البحث في الأثر الذي يحدثه تغليف الإطار البيتوني بالقميص الفولاذي (بالكمية الدنيا) على مواصفات الإطار من حيث القساوة و المطاوعة و المقاومة.
This research investigates the behavior of RC frames strengthened using steel jacket technique and the impact of using this technique on the frame specifications was examined in terms of rigidity, ductility and resistance.
References used
ABHISHEK, J; ARIHANT, P; BHUSHAN, M; KETAN P; SUNNY, P; YASH, S; INDRAJEET, J 2016 Retrofitting Of Reinforced Concrete Column by Steel Jacketing, Journal of Engineering Research and Application ISSN : 2248 - 9622, Vol. 6, Issue 7, ( Part - 1), pp.01-05
CONSUELO, B; ALBERTO, M; PAOLO, R 2011 Beam- Column Joint Retrofitting with High Performance Fiber Reinforced Concrete Jacketing, ANIDIS BAR ,DOI: 10.4028
LUERSEN, M. A.; LE RICHE, R.; GUYON, F,2003 A constrained, globalized, and bounded Nelder-Mead method for engineering optimization, Structmultidisc Optim, DOI 10.1007
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Frame structures contribute to resist the seismic loads. On the other hand, frames
work efficiently to increase the ductility of buildings. Therefore, many techniques were
used to improve the resistance against lateral loads where steel shear walls
are considered
to be one of these ways.
This research aims to study the effect of inserting steel shear wall on the resistance of
the reinforced concrete frame against earthquake loads. In this study, Finite Element
Method (FEM) using Geometrically and Materially Non-Linear Analysis (GMNLA) was
performed. Pushover analysis is used to explore the behavior of the steel plate in-filled
reinforced concrete frame against lateral loads. Moreover, the effect of plate thickness was
undertaken. On the other hand, an opening is made in this plate. Then, the influence of the
position and dimension of this opening on the resistance was observed.
This study shows that using a steel plate shear wall with or without opening can
enhance the resistance to seismic loads significantly together with the deflection decrease.
This research deals with the minimum cost design of reinforced concrete T-beams
according to the Syrian code. The aim is to minimize the total cost of the beam while
respecting all the design requirements. Traditional method depend on a set of supp
ositions,
in the opposite this methodology aim to reach the optimal solution among a set of
constraints with respect the objective function. So that, using this methodology leading to
the minimum cost reinforced section design.
This research is shown that the problem can be formulated in a nonlinear
mathematical programming format.
Several cases are used to explain the applicability of the formulation in accordance
with the current Syrian code. Traditional method of Syrian code has been used to design
sections in this paper, utilizing the nonlinear programming method provided by Lingo14.0
software from LINDO Systems Inc. The comparison of the results shows that important
saving can be obtained at the total cost of a reinforced concrete T-beams design.
Most existing structures are not designed with cod
requirements to meet seismic risk, Therefor methods for
strengthening and stiffening existing buildings are important .
This study is comparing between strengthening by adding shear
wall or by ad
ding steel bracing.X -V
The study shows the importance of using steel bracing system
that is excellent approach for strengthening and stiffening
existing buildings with small increase in mass ,the study also
approved that the constant value of R(response factor)(as
mentioned in the Syrian code and UBC97) is not completely
correct.
Structural Frame system is considers as an earthquake resisting structural
systems. On the other hand, many techniques were used to improve the
resistance against lateral loads. where Steel Plate Shear Wall fixed within
frame span is one of those
techniques.
This research aims to develop the Strip model of Partial Steel Plate Shear
Walls with Reinforced-Concrete Frame with opening parallel to beams.
As a result of the scientific and technological progress in different types of
industry, one of which, Construction industry, new materials and methods
of executing and designing buildings are utilized in general. Therefore,
finding the best and e
conomical solution is one of the main issues addressed
by the researchers in recent years.
- Economical design i.e. researching best and most suitable solutions for
specified load conditions and environment requires a good knowledge in
calculation and designing methods, exacting and constructing methods and
the types and prices of materials available locally.
-This paper discusses the economical design of the reinforced concrete
components specified for the basic forces(M,Q,N). Consequently, it is the
economical design of the structural framework of the reinforced concrete
buildings according to the main changes of materials price for constructing
these structures at specific local conditions.
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