## Hardy Cross: American EngineerIn this close study of a key figure in the history of technology, Leonard K. Eaton examines Hardy Cross's training, his work, his teaching, and his ideas, demonstrating how his achievements represent a pivotal moment in the history of structural engineering. During Cross's tenure at the University of Illinois (1921-37), he developed the "moment distribution method," allowing mathematicians to calculate statistically indeterminate frames of reinforced concrete for the first time. Later known as the Cross method, this achievement made possible the calculations that allowed for safe and efficient designs from reinforced concrete--a new material at the time--and the subsequent architectural revolution. |

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### Contents

The Preparatory Years 18851921 | 1 |

The Creative Years at Illinois 192137 18 | 37 |

The Years at Yale 193751 and Retirement | 53 |

Copyright | |

3 other sections not shown

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Alford American architect architecture bending calculation carry-over factor civil engineering computations Concrete Arch Conduits Continuous Beams Continuous Frames Cross method deformation developed Discussion of Paper distribution method Engineers and Ivory equations Eugene Freyssinet Figure fixed end moments Frames of Reinforced Freyssinet geometry girders Goodpasture Griswold Hampden-Sydney Hardy Cross highway bridge Ibid important joint Journal Karl Terzaghi Karman Kuesel load Magnel Maillart mathematical mechanics ment Nansemond County Newmark Norfolk Academy notes pre-stressing problem Professor Cross published reinforced concrete remarked Reyner Banham rigid frame rotations Seagram Building settlement slope deflection solution span statically indeterminate Statically Indeterminate Structures steel stiffness Strength of Materials stresses Structural Analysis structural design structural engineering suspension bridges teaching Terzaghi Theodore von Karman theoretical theory of elasticity Thomas Hardy Thomas Hardy Cross thought Timoshenko tion Transactions 101 Transactions 96 trusses United University of Illinois Virginia Westergaard wrote Yale