"Flexural buckling of steel columns: Comparison between E.C.P 1989, theoretical analysis and other international codes of practice", First International Conference on Civil Engineering, pp 542-555, Helwan University, Cairo, Egypt, March. "Proposed design method for torsional and torsional-flexural buckling of cold formed steel columns" Eighth International Conference on Structural and Geotechnical Engineering, pp I-354 to I 372, Ain-Shams University, Cairo, Egypt, December . "Structural repair for heavily damaged reinforced concrete structure", The Second Middle East Symposium on Structural Composite for Infrastructure Application, pp337-346, Hurghada, Egypt, April . "Structural repair and seismic upgrading for severely damaged bearing walls structure", International Conference on Earthquake Hazards in the Mediterranean Region, Near East University, Nicosia, North Cyprus, October. "Lateral torsional buckling of beams under loads applied above or below the shear center", Second International Conference on Civil Engineering, pp 209-222, Helwan University, Cairo, Egypt, April . "Ultimate resistance of beams undergoing lateral torsional buckling under uniform bending moment", The Ninth International Conference on Structural and Geotechnical Engineering, Ain-Shams University, Cairo, Egypt, April. "Experimental and analytical study for buckling behavior of piles", The Ninth International Conference on Structural and Geotechnical Engineering, Ain-Shams University, Cairo, Egypt, April “Interaction between critical torsional flexural and lip buckling in channel sections” Journal of Const. Steel Research, Vol. 57, Issue 8, Aug. , pp 925-944 "Safety of Control Structures Against Cracks", Eighth international Symposium on River Sedimentation, Cairo, Egypt, November . "Seismic Response of Control Structures, Concrete Gravity Dams", Eighth international Symposium on River Sedimentation, Cairo, Egypt, November . "Design of Steel Column Bases Subjected to Concentric or Eccentric Loading", Al-Azhar Engineering 7th international conference, Cairo, Egypt, April . ”Strength of Cold Formed Beams with Stiffened Web Opening”, Ain-Shams Journal of Civil Engineering, ASJCE, Vol.43/3, September . “Structural Behavior and Resistance of Steel Beam-column”, Journal of Const. Steel Research, Under Publication Resistance of cold-formed steel sections to combined bending and web crippling Behavior and resistance of beam-column structural elements Behaviour of hollow steel sections strenthened with CFRP An experimentally verified new approach for web crippling design of cold-formed steel Z-Sections Effect of geometrical properties on strength of externally prestressed steel–concrete composite beams MAJOR PARAMETERS GOVERNING THE STRENGTH OF HOLLOW STEEL SECTIONS STRENGTHENED BY CFRP Experimental and Numerical Investigation of The Behavior of Castellated Steel Beam-Columns