Advance Steel StructuresM.Sc Spring 2014Dr. Mohammad AdilDepartment of Civil EngineeringCECOS University, Peshawar

ATTOCK BRIDGE1880

http://pakistaniat.com/2009/02/03/railway-bridge-on-indus-at-attock/

http://www.irfca.org/gallery/Foreign/Saif+in+Pakistan/Old+Attock+Bridge

1926-29 Reconstructedhttp://www.irfca.org/gallery/Foreign/Saif+in+Pakistan/Old+Attock+Bridge

http://www.irfca.org/gallery/Foreign/Saif+in+Pakistan/Old+Attock+Bridge

http://www.irfca.org/gallery/Foreign/Saif+in+Pakistan/Old+Attock+Bridge

Lansdowne and Ayub Arch1889(790m rigid girder)1960-62(2crore Rs)US+British

Hyperboloid pylon in the suburb of Nizhniy Novgorod, Russia.http://en.wikipedia.org/wiki/Transmission_tower

Sukkur Barrage gate

Kotri Barrage

Warehouse roof

Course Outline

WEEK Topic1Introduction2Steel Structures, Fasteners and Welding3Design of Tension members4Design of Compression members5Design of Beams + Lateral Torsional Buckling6Steel-Concrete Composite construction7Plate Girders8MID-TERM Exam

Course Outline

WEEK Topic9Moment connections and Eccentric connections10Biaxial Columns11P-Delta effects12FRP-steel composite 13Earthquake resistance methods in steel 14Term paper presentation 115Term paper presentation 216FINAL-TERM Exam

Marks distributionAssignments 10%Term paper presentation 15%Mid-term 25%Final-Term 50%

Reserves & Chemical Properties of Iron Ore

S.NOre-DepositsFe (t) %SIO2AI2O3 %CaO+MgO %S %P %Type of depositsExtent in strike of deposits workable Part only(Meters)Dip Slope Extent(Meters)AverageThickness of ore-bed(Meters)SpecificGravityProved&IndicatedReserves(Million Tons)1Pachinkoh(Nokundi)50.0015.604.417.252.60.10IgneousSegregated/injected magnesite bodies------4.1045.002Chigendik(Nokundi)43.6019.952.718.471.710.24------4.005.003Chilghazi(Dalbandin)51.8711.720.302.50.100.10------4.202.474DamarNisar( Chitral)61.477.201.013.870.390.14Metasomatic replacement of marble by magnesite and hematite------4.203.005Dilband(Mastung, Kalat)35.0019.466.588.92N.R*0.44SedimentaryN.R*N.R*1 to 73.50200.006Chichali-Chughlan(Kalabagh, Mianwali)32.4520.206.005.480.270.4915,60026303.003.00369.007Makerwal-Sho( Makerwal, Mianwali)33.4324.597.505.000.700.221,00026304.113.11706.008D.G.Khan37.5014.007.407.700.300.307,0006101.21-1.983.0056.009Pezu(D.I.Khan-Bannu)31.3019.805.508.400.620.393,200474.872.8013.00

Response Modification Factor R

Basic Structural System And Seismic Force Resistant SystemLimitation of the structural system and heightC (meters) Seismic Performance CategoryR Bearing Wall systemLight frame with shear panels6.5 Reinforced concrete shear walls4.5 Reinforced masonry shear walls3.5 Braced concentrically frames4.0 Unreinforced masonry shear walls1.25 Building frame systemEccentrically braced frames, moment resisting connection columns far away to the link.8 Braced eccentrically frames, non-moment resisting connection in columns far away to the link.7 Light frame with shear panels 7 Braced concentrically frames5 Reinforced concrete shear walls5.5 Reinforced masonry shear walls4.5 Unreinforced masonry shear walls1.5 Moment resisting frame systemSteel special moment frames8 Reinforced concrete special moment frames8 Reinforced concrete intermediate moment frames4 Steel simple moment frames4.5 Reinforced concrete simple moment frames2

Dual system with special moment frame to be able to resist at least 25% of the prescribed seismic forcesBraced eccentrically flames, moment resisting connection in columns far away to the link.8 Eccentrically braced frames, non-moment resisting connection in columns far away to the link.7 Concentrically braced frames6 Reinforced concrete shear walls8 Reinforced masonry shear walls6.5 Shear panels covered with wood8 Dual system with intermediate moment frame to be able to resist at lest 25% of the prescribed seismic forcesConcentrically braced frames5 Reinforced concrete hear walls6 Reinforced masonry shear walls5 Shear Panels covered with wood7 Seismic force resistant system of inverted pendulum structure typeStructural steel special moment frame2.5 Reinforced concrete special moment frame2.5 Structural steel simple moment frame1.25

Angle steel tower (there are also steel poles).*http://www.atlanticcompanies.com/act/lnk4.php*