Non-linear analysis to improve punching shear strength in flat slab using Z-shape shear reinforcement
المؤلفون المشاركون
Husayn, Halim Kazim
Abbas, Abd al-Nasir Muhammad
Sadun, Ahmad Sagban
المصدر
Muthanna Journal of Engineering and Technology
العدد
المجلد 7، العدد 1 (30 يونيو/حزيران 2019)، ص ص. 65-70، 6ص.
الناشر
تاريخ النشر
2019-06-30
دولة النشر
العراق
عدد الصفحات
6
التخصصات الرئيسية
الموضوعات
الملخص EN
Currently, flat slbecome one of the widely used structures due to its architectural benefits such as uncomplicated formwork, flexibility and minimum construction time.
However, these structures are relatively weak to resist the punching shear due to a considerable lowering in stiffness induced from the development of cracks that resulting from axial and seismic loads.
Moreover, the punching failure is considered a brittle failure caused by the transferring of unbalanced moments and shear forces between the structural members.
Unfortunately, this may cause a catastrophic collapse, especially in the region of the slab-column.
Therefore, many experimental and theoretical studies were done to improve the punching strength of the flat slab.
In the current work; a finite element three-dimensional non-linear analysis has simulated by ABAQUS tool to investigate the structural behaviour of flat slab.
Two specimens have considered, the first is a flat slab reinforced by ordinary steel reinforcement.
While in the second one, a Z-shape shear rebar improvement has been added to the slab-column connection.
The proposed model has reflected a reasonable enhancement to the flat slab.
The analysis considers different parameters such as punching shear forces, deformations, and stresses of Von-Mises.
The outcomes indicate that punching shear strength is increased by approximately 11.1% , and the deflections are decreased by 77.3% when the Z-shape reinforcement is used.
In the meantime, stress concentrations were reduced and move from the slab-column Currently, flat slbecome one of the widely used structures due to its architectural benefits such as uncomplicated formwork, flexibility and minimum construction time.
However, these structures are relatively weak to resist the punching shear due to a considerable lowering in stiffness induced from the development of cracks that resulting from axial and seismic loads.
Moreover, the punching failure is considered a brittle failure caused by the transferring of unbalanced moments and shear forces between the structural members.
Unfortunately, this may cause a catastrophic collapse, especially in the region of the slab-column.
Therefore, many experimental and theoretical studies were done to improve the punching strength of the flat slab.
In the current work; a finite element three-dimensional non-linear analysis has simulated by ABAQUS tool to investigate the structural behaviour of flat slab.
Two specimens have considered, the first is a flat slab reinforced by ordinary steel reinforcement.
While in the second one, a Z-shape shear rebar improvement has been added to the slab-column connection.
The proposed model has reflected a reasonable enhancement to the flat slab.
The analysis considers different parameters such as punching shear forces, deformations, and stresses of Von-Mises.
The outcomes indicate that punching shear strength is increased by approximately 11.1% , and the deflections are decreased by 77.3% when the Z-shape reinforcement is used.
In the meantime, stress concentrations were reduced and move from the slab-column connection.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Abbas, Abd al-Nasir Muhammad& Sadun, Ahmad Sagban& Husayn, Halim Kazim. 2019. Non-linear analysis to improve punching shear strength in flat slab using Z-shape shear reinforcement. Muthanna Journal of Engineering and Technology،Vol. 7, no. 1, pp.65-70.
https://search.emarefa.net/detail/BIM-1122188
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Sadun, Ahmad Sagban…[et al.]. Non-linear analysis to improve punching shear strength in flat slab using Z-shape shear reinforcement. Muthanna Journal of Engineering and Technology Vol. 7, no. 1 (2019), pp.65-70.
https://search.emarefa.net/detail/BIM-1122188
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Abbas, Abd al-Nasir Muhammad& Sadun, Ahmad Sagban& Husayn, Halim Kazim. Non-linear analysis to improve punching shear strength in flat slab using Z-shape shear reinforcement. Muthanna Journal of Engineering and Technology. 2019. Vol. 7, no. 1, pp.65-70.
https://search.emarefa.net/detail/BIM-1122188
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
-
رقم السجل
BIM-1122188
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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