Structural behavior of reinforced concrete pre-stressed tapered beams
الباحث الأول:
Mohammed Dhaher Jasim
الباحثين الآخرين:
Hayder Talib Nimnim
المجلة:
Periodicals of Engineering and Natural Sciences (PEN)
تاريخ النشر:
28 فبراير، 2023
مختصر البحث:
ABSTRACT
This research is focused on studying the flexural behavior of reinforced concrete prestressed (post-tensioned)
tapered beams. The present study investigates the impact of compressive strength, prestressed reinforcement,
and tapering ra…
ABSTRACT
This research is focused on studying the flexural behavior of reinforced concrete prestressed (post-tensioned)
tapered beams. The present study investigates the impact of compressive strength, prestressed reinforcement,
and tapering ratio on flexural behavior. All tested beams have a total length equal to (2600mm) and a clear
distance between supports equal to (2400mm), the width of the beam (250mm), and maintain the same
amount of concrete volume. The experimental results showed that when a prestressed reinforcement changes
from (one strand) for (two strands), this change will affect the prismatic beam, in which the first cracking
and the ultimate load will be raised by (60% and 31.71%), respectively, and for a non-prismatic beam with
tapering ratios of (1.5 and 2), the first cracking will increase by (12.5% and 2.63%) also the maximum load
raised by (28.3% and 31.03%). The failure mode was flexural for all tested beams with crushing in the
compression zone. This paper simulated a numerical analysis of experimentally tested specimens using a
nonlinear finite element technique (ABAQUS/CAE 2021 software). The numerical outcomes revealed a good
correlation compared with the results of the experimental study.
