New 3-D Stability Approach for the Elastic Cable-Stayed Towers

ISBN-13: 9783844333923 / Angielski / Miękka / 2011 / 360 str.

Khalid Sideek

Opis

In this book, a theoretical analysis is presented for estimating the 3-D large displacement elastic stability behavior including shear deformations of both ordinary and cable-frame interactions in their both suspended or stayed cases subjected to proportional increase in static vertical or horizontal concentrated or distributed loads or both. A new Bowing Functions has been established and checked; a new approach has been established and checked regarding the 3-D effect (SS effect). A new function called "twisting function" has been derived associated to the 3-D effect. A new tangent stiffness matrix in space including shear deformations and 3-D effect has been derived. The effect of axial force on bending, shear & torsional stiffness has been included. All other effects of temperature, lack of fit, initial imperfections, support yielding, pre- twisting members, pretension in cables & cable sag have been considered. A multi-purpose computer program (NASCFI) has been introduced. More than 30 study cases have been examined by (NASCFI) to verify its validity.

O autorze

PhD / Str. Eng. since 1997- Ass. Prof. since 2004- Lect. in many Eng. Depts. & Insts.- Cntrb. in many global confrncs.- Many papers & books published -Qualified in many softwares appls.- Unlimited str. Conslt./ Dubai Mncplty. since 2005- Certificated as Str. Eng. Expert in many worldwide companies during 26 yrs.- Membership in many Eng. Socts.