Introduction1Chapter 1Platform Steel Structures21．1Layout of platform steel structures21．2Paving panel design41．2．1Form and structural detail of the paving panels41．2．2Calculation of paving plates51．2．3Stiffeners of plate calculation71．3Platform beam design101．3．1Key points of platform beam design101．3．2Design and calculation of platform beam101．4Platform column design201．4．1Cross-section design201．4．2Calculation of the axial compression column with solid web211．4．3Lace-barred latticed columns and sewed slab latticed columns231．5Joint design251．5．1Primary beam to secondary beam joint251．5．2Primary beam to column joints271．5．3Column base joints291．6Design of steel stairs of the platform structures291．6．1Form and structural detail of steel stairs291．6．2Calculation of inclined stair30Thinking questions31Exercises31Chapter 2Design of Light Portal Frame Structures332．1Structure forms and structure layout332．1．1Structure forms332．1．2Geometric size of building342．1．3Structure layout352．2Loads and internal force combination362．2．1Loads362．2．2Combination of load effects372．2．3Internal force calculation382．2．4Deformation calculation382．3Design of columns and beams392．3．1Plate width-to-thickness ratio and web post-buckling strength392．3．2Section strength of beams and columns considering post-buckling strength422．3．3Overall stability of the variable section column of the portal frame422．4Design of purlin and wall beam532．4．1Purlin design532．4．2Wall beam design612．5Joints design662．5．1Design of column-beam joints and beam-to-beam splicing joints662．5．2Design of column base joints692．5．3Design of corbels702．5．4Connection structure of swinging column and inclined beam712．6Design of braces(supports)712．7Design of profiled steel sheet722．7．1Material and section forms of the profiled steel sheets722．7．2Loads and load combinations of the profiled steel sheets742．7．3Specifications for construction of the profiled steel sheets75Thinking questions76Exercises76Chapter 3Heavy Industrial Building783．1Overview of heavy industrial building783．1．1Application and structure features of heavy industrial building783．1．2Structure constitution of heavy industrial building783．2Structural layout of heavy industrial building793．2．1Column grid layout of heavy industrial building793．2．2Roof arrangement of heavy industrial building803．2．3Transverse frame of heavy industrial building803．2．4Frame column of heavy industrial building823．2．5Roof truss of heavy industrial building853．2．6Column bracing of heavy industrial building883．2．7Roof bracing of heavy industrial building903．3Principle of structure calculation of heavy industrial building933．3．1Load calculation933．3．2Internal force calculation of rigid-jointed frame933．3．3Principle of internal force combination943．4Design of steel roof truss943．4．1Loads of roof truss943．4．2Internal force calculation and combination of roof truss953．4．3Effective length of members in roof truss953．4．4Section form of members in roof truss973．4．5Connection structure of roof truss993．4．6Section selection for roof truss members993．4．7Joints design1003．4．8Introduction of roof truss construction drawing characteristics1023．4．9Design example of steel roof truss1023．5Crane girder design of heavy industrial building1043．5．1Load and working performance of crane girder1043．5．2Composition of crane girder system1053．5．3Connections between crane girder and column1063．5．4Cross-section checking calculation of crane beam106Thinking questions110Exercises110Chapter 4Design of Large-span Steel Roof Structures1124．1Structural forms of large-span steel roof systems1124．2Plate-like space trusses1124．2．1Characteristics and geometric composition analysis1134．2．2Types of plate-like space truss1144．2．3Structure form selection of plate-like space truss1204．2．4Bottom supports of plate-like space truss1224．2．5Dimensions of plate-like space truss1244．2．6Roof drainage and slope of space truss1254．2．7Allowable deflection of space truss1264．3Latticed shells1264．3．1Kinds of latticed shells1274．3．2Forms of latticed shells1284．3．3Basic principles for the design of latticed shells1334．4Calculation of plate-like space trusses and latticed shells1354．4．1Loads and action1354．4．2Internal force calculation of space latticed structures1374．4．3Internal forces calculation under seismic action1404．5Design of members in plate-like space truss and latticed shell1424．6Design of joints in plate-like space trusses and latticed shells1444．6．1Welded hollow spherical joints(WHSJ)1444．6．2Design of bolted spherical joints1474．6．3Support joints152Thinking questions154Exercise154Chapter 5Multi-story and High-rise Steel Buildings1555．1Composition of multi-story and high-rise building structure1555．1．1Types of multi-story building structures1555．1．2Outline of structure layout1615．2Floor layout and design1645．2．1Layout principles and schemes of the floor1645．2．2Design of profiled sheet-concrete composite floor1685．3Design of columns and supports1765．3．1Design of frame columns1765．3．2The column-to-beam connection1795．3．3Arrangement of horizontal braces1825．3．4Design of vertical braces1825．4Brief introduction of analysis and calculation of high-rise steel buildings1885．4．1Load and action1885．4．2Structural analysis and calculation1895．4．3Structural design195Thinking questions198Exercise198Chapter 6Steel Tube Structures and Tubular Connections1996．1Introduction1996．2Steel tubular connection forms and geometric parameters2016．3Judgment criteria for the capacity of tubular connections2046．4Static capacity of CHS connections2056．4．1Failure modes of CHS connections2056．4．2Analysis models for the capacities of CHS connections2066．4．3Bearing capacity formulae of several CHS connections2096．5Static capacity of RHS connections2146．5．1Failure modes of RHS connections2146．5．2Analysis models of the capacities of RHS connections2156．5．3Bearing capacity formulae of several RHS connections221Thinking questions224Exercise224References225Appendix226