DESIGN OF FOUNADATION FOR MUSCAT PRIMARY SCHOOL – KUFUR RA’I
DESIGN OF FOUNADATION FOR MUSCAT PRIMARY SCHOOL – KUFUR RA’I
The project is a school building designed as four floors where a two
floor only is carried out with 2046 m2 area, the school has a mark of
Omani buildings, as it is a grant from the Omani government.
Since
the interest is in designing the foundation, special types of footing
will be performed considering all the architectural features and
geological properties, also all modification and improvement of section
of the land, single footing selected in design as a main component of
construction, in addition to the shear and retaining walls. 1.3
SCOPE OF PROJECT:
- Evaluation of foundations.
- Selection of the proper foundations
- Design of foundations.
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دو مقاله علمی - بررسی اثر نحوه تعریف مفصل های پلاستیک
و مقایسه ی نتایج نرم افزارهای SAP 2000 و IDARC
مقاله علمی یک :
بررسی اثر نحوه تعریف مفصل های پلاستیک سازه های بتونی در تحلیل های خطی (SAP 2000)
Effects of plastic hinge properties in nonlinear analysis of reinforced
concrete buildings
Mehmet Inel∗, Hayri Baytan Ozmen
Department of Civil Engineering, Pamukkale University, 20070 Denizli, Turkey
Received 22 June 2005; received in revised form 20 January 2006; accepted 23 January 2006
Available online 30 March 2006
Abstract
Due to its simplicity, the structural engineering profession has been
using the nonlinear static procedure (NSP) or pushover analysis.
Modeling for such analysis requires the determination of the nonlinear
properties of each component in the structure, quantified by strength
and deformation
capacities, which depend on the modeling assumptions. Pushover analysis
is carried out for either user-defined nonlinear hinge properties or
default-hinge properties, available in some programs based on the
FEMA-356 and ATC-40 guidelines. While such documents provide the hinge
properties for several ranges of detailing, programs may implement
averaged values. The user needs to be careful; the misuse of
default-hinge properties may lead to unreasonable displacement
capacities for existing structures. This paper studies the possible
differences in the results of
pushover analysis due to default and user-defined nonlinear component
properties. Four- and seven-story buildings are considered to represent
low- and medium- rise buildings for this study. Plastic hinge length and
transverse reinforcement spacing are assumed to be effective parameters
in the user-defined hinge properties. Observations show that plastic
hinge length and transverse reinforcement spacing have no influence on
the base shear capacity, while these parameters have considerable
effects on the displacement capacity of the frames. Comparisons point
out that an
increase in the amount of transverse reinforcement improves the
displacement capacity. Although the capacity curve for the default-hinge
model is reasonable for modern code compliant buildings, it may not be
suitable for others. Considering that most existing buildings in Turkey
and in
some other countries do not conform to requirements of modern code
detailing, the use of default hinges needs special care. The
observations clearly show that the user-defined hinge model is better
than the default-hinge model in reflecting nonlinear behavior compatible
with the element properties. However, if the default-hinge model is
preferred due to simplicity, the user should be aware of what is
provided in the program and should avoid the misuse of default-hinge
properties. c 2006 Elsevier Ltd. All rights reserved.
Keywords: Nonlinear hinge properties; Nonlinear static procedure;
Plastic hinge length; Pushover analysis; Transverse steel amount;
Nonlinear time history
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مقاله علمی دو :
مقایسه ی نتایج نرم افزارهای SAP 2000 و IDARC با آزمایش انجام شده (SAP 2000)
An investigation on global ductility of strengthened RC frames
M. H. Arslan MSc, PhD, I. Yuksel MSc, PhD and M. Y. Kaltakci MSc, PhD
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