Documents

aaAbbassi

Description
n
Categories
Published
of 223
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
Share
Transcript
    The Weight Efficiency of Steel Framed Buildings with Various Wind Bracing Systems Sanaz Khoddam Abbassi Submitted to the Institute of Graduate Studies and Research in partial fulfillment of the requirements for the Degree of Master of Science in Civil Engineering Eastern Mediterranean University June 2009 Gazima ğ usa, North Cyprus   Approval of the Institute of Graduate Studies and Research Prof. Dr. Elvan Yılmaz Director (a) I certify that this thesis satisfies the requirements as a thesis for the degree of Master of Science in Civil Engineering Asst. Prof. Dr. Huriye Bilsel Chair, Department of Civil Engineering We certify that we have read this thesis and that in our opinion it is fully adequate in scope and quality as a thesis for the degree of Master of Science in Civil Engineering. Asst. Prof. Dr. Murude Celikag Supervisor Examining Committee 1.   Asst. Prof. Dr. Erdinc Soyer 2.   Asst. Prof. Dr. Serhan Ş ensoy 3.   Asst. Prof. Dr. Murude Celikag  iii ABSTRACT This research is about the efficiency of using different types of wind bracing and with different steel profiles for bracing members for multi-storey steel frames. ETABS software was used to obtain the design of frames and bracing systems with the least weight and appropriate steel section selection for beams, columns and bracing members from the standard set of steel sections. The design loads are specified in BS 5950 (2000). The serviceability limit state included in the design problem is achieved by limiting the overall and intermediate storey lateral displacement in the building to height/300 as specified by the code. Bracing members are considered to be made of Universal Angle section [Equal Angle (EA) and Unequal Angle (UA)], Rectangular Hollow section (RHHF), Circular Hollow section (CHHF) and I section [Universal Column (UC)]. This research presents the design of steel structure subjected to wind loading for buildings up to 5, 10, 15 and 20 stories with symmetrical plan and section, asymmetrical plan and section, symmetrical plan and asymmetrical section and asymmetrical plan and symmetrical section steel frame buildings with different bracing systems such as cross, zipper and knee bracing at the core and central bay of the structure. From this research it is concluded that Rectangular Hollow Section zipper bracing produces the lightest frame among the others. Keywords:  Braced steel frames; Bracing systems; Wind loads; Weight of steel elements; Lateral displacement.  iv ÖZET Bu ara ş tırma çok katlı çelik çerçevelerde hangi tip rüzgar ba ğ  sisteminin daha etkili çalı ş abilece ğ ini ve bu ba ğ  sistemlerinde kullanılan çelik profilleri incelemek için yapılmı ş tır. Bu amaçla çelik çerçeve tasarımı için ETABS programı kullanılmı ş  ve tasarıma en uygun profiller programda yer alan standard tablolardan seçilmi ş tir. Kiri ş  kolon ve ba ğ  sistem elemanları için seçilmi ş tir. Tasarımda kullanılan yükler ingiliz çelik standardı BS5950 (2000)’den alınmı ş tır. Bu kodun önerdi ğ i her kat için yatay öteleme limiti olan kat yüksekli ğ i / 300 her bir katın ve tüm binanın yatay ötelemesini kısıtlamak için kullanılmı ş tır. Böylece yatay yönde gerekli sa ğ lanmı ş tır. Ba ğ  sistem elemanları için kö ş ebend, dikdörtgen ve daire profil ve I-profil kolon kullanılmı ş tır. Bu ara ş tırmada 5, 10, 15 ve 20 katlı simetrik plan ve kesiti, asimetrik plan ve kesiti simetrik plan ve asimetrik kesiti, asimetrik plan ve simetrik kesiti olan, çelik yapılar tasarlanmı ş tır. Göbe ğ inde ve orta açıklıklarında farklı ba ğ  sistemleri kullanılmı ş , örne ğ in çapraz, ters V ve dı ş merkezli ba ğ lanmı ş  çelik yapılar tasarlanmı ş tır. Elde edilen sonuçlar do ğ rultusunda dikdörtgen profil kullanılan ters V ba ğ  sisteminin tüm sistemler arasında en hafif çerçeveyi verdi ğ i görülmü ş tür. Anahtar kelimeler:  ba ğ lanmı ş  çelik çereçeve, ba ğ  sistemleri, rüzgar yükleri, çelik elemanların a ğ ırlıkları; yatay öteleme
Search
Similar documents
Tags
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks