دراسة تأثير شكل وتباعد الفتحات في الجسد الفولاذي للجيزان المركبة على التحمل الحدى باستخدام النمذجة العددية

الموضوعات

علوم تطبيقية وتكنولوجية

روابط وملفات

التعريف والنوع

رقم الوثيقة

fdfb78dd-8fe4-45c6-aed2-b6384583ed0e

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1960313_1.pdf

بيانات النشر

ترجمة العنوان

Studying the Effect of Shape and Spacing of Openings in Composite Beams on Ultimate Load Using Numerical Modeling

ألقاب المؤلفين

[{"name_ar":"ايمان سليمان","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"محمد صفو","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة تأثير شكل وتباعد الفتحات في الجسد الفولاذي للجيزان المركبة على التحمل الحدى باستخدام النمذجة العددية

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

The use of steel structures has become widespread due to high strength and high ductility, there are many types of steel structural elements including beams with opening in the web(a regular series of openings -isolated openings)to pass services (ducting –plumbing)which reduce the height of multi-story buildings .In this research the influence of the shape and the spacing of the openings in the web of composite and non-composite steel beams on their behavior was studied using numerical modeling (ANSYS program)and compare the curve (load _ deflection) with the results of reference research. At beginning ,a review of most important researches in field of composite and non-composite steel beams with openings in web has been made. Then, to calibrate the results of this research, cases from reference researches have been modeled by using ANSYS and the results were compared.After confirming the compatibility of the modeling results with the results of the reference research, the influence of a regular series of openings(circular-square-hexagonal) in the web ofsteel beam with simple supports and subject to the influence of concentrated load was studied, and also the influence of changing the height of the opening as a proportion of the height of the section on the ultimate load of beam.The results indicate that the ultimate load of the beam decreases when the height of the open increases. However it remains greater than the ultimate load of the original solid beam when the height of the hole does not exceed 0.6 of the total beam height. In addition ,beam with isolated openings(circular, rectangular, square)was modeled and the effect of the location of openings and their number in the web of beam on ultimate load was studied. Also the mathematical formula of the deflection was developed to take the ratio d/hand the shape of opening for case of isolated opening in account .After that, simple supported composite steel beams subject to the influence of concentrated load in the middle of the span and has 80mm circular opening (58% of beam depth) in the middle was modeled. Then, change the circular opening with square and hexagonal opening that have the same dimension and compare the results (load _ deflection) curves with each other .In addition, the effect of shape of openings on the ultimate load of the same composite beam subject to four-points bending but with two openings near supports is studied. Results indicate that the shape of opening that is in the middle of beam has a simple effect on ultimate load of beam while opening near support has clear influence on ultimate load.

إشراف وإعداد

الإشراف

محمد صفو

الإعداد

ايمان سليمان

الاقتباسات الببليوغرافية