PREFACE BY EDITORS PART Ⅰ STRUCTURAL THEORY AND ANALYSIS A Direct Method of Moment Distribution T.Y.Lin Lateral Force Distribution in a Concrete Building Story T.Y.Lin Selection and Design of Prestressed Concrete Beam Sections T.Y.Lin and A.C.Scordelis Load—Balancing Method for Design and Analysis of Prestressed Concrete Structures T.Y.Lin PART Ⅱ EXPERIMENTAL STUDIES Load Distribution between Girders on San Leandro Creek Bridge T.Y.Lin and R.Horon jeff Strength of Continuous Prestressed Concrete Beams Under Static and Repeated Loads T.Y.Lin Strength of a Concrete Slab Prestressed in Two Directions A.C.Scordelis,K.S.Pister,and T.Y.Lin Flexural Strength of Prestressed Concrete Beams at Transfer A.C.Scordelis,T.Y.Lin,and H.R.May Shearing Strength of Prestressed Lift Slabs A.C.Scordelis,T.Y.Lin,and H.R.May Behavior of a Continuous Slab Prestressed in Two Directions A.C.Scordelis,T.Y.Lin,and R.Itaya Chemical Prestressing of Concrete Elements Using Expanding Cements T.Y.Lin and Alexander Klein PART Ⅲ CODES AND CONCEPTS Load Factors for Prestressed Concrete Bridges T.Y.Lin Prestressed Concrete Building Code Requirements T.Y.Lin Basic Design Concepts for Long Span Structures T.Y.Lin,Felix Kulka,and Y.C.Yang Creativity in Bridge Engineering T.Y.Lin and Lester A.Herr Progress and Problems—Today and Tomorrow T.Y.Lin PART Ⅳ DEVELOPMENT OF STRUCTURAL TYPES Design of Prestressed Concrete Buildings for Earthquake Resistance T.Y.Lin Recent Technological Developments in Industrialized Production of Housing T.Y.Lin and S.D.Stotesbury Fifty—Year Advancement in Concrete Bridge Construction T.Y.Lin and Felix Kulka State—of—the—Art in Cable—Stayed Bridges with Concrete Deck Structure T.Y.Lin and Charles Red field PART Ⅴ SOME COMPLETED UNIQUE PROJECT Prestressed Concrete Shell for Grandstand Roofs Henry M.Layne and T.Y.Lin Long Precast Columns Carry Pretensioned Nine—Storey Building T.Y.Lin,Felix Kulka,and Y.C.Yang Two Large Shells of Post—Tensioned Precast Concrete T.Y.Lin and Ben W.Young Post—Tensioned Waffle and Multispan Cantilever System with Y—Piers Composing the Hegenberger Overpass T.Y.Lin,Felix Kulka,and Y.C.Yang Giant Prestressed HP Shell for Ponce Coliseum T.Y.Lin,Felix Kulka,and Kam Lo Construction of Rio Colorado Bridge T.Y.Lin and Felix Kulka PART Ⅵ SOME DESIGNS AND MEGA—PROPOSALS Inter—Continental Peace Bridge Proposed Trans—Alaska Integrated Pipeline Transportation System George D.Nosser The Design of the Ruck—A—Chucky Bridge T.Y.Lin and D.Allan Firmage Inter Continental Peace Bridge Inc. Social,Economic and Environmental Considerations for Four Major Crossings T.Y.Lin Gibraltar Strait Grossing—A Challenge to Bridge and Structural Engineers T.Y.Lin and Philip Chow