## A Solution for Secondary Stresses |

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### Contents

Determination of Angle Changes in | 19 |

Summation of Moments at Joints | 22 |

Allowance for Effect of Preshortened Members | 26 |

7 other sections not shown

### Common terms and phrases

algebraic sign American Bridge Company angle changes applied loads axial loads axial stresses axis Cache Creek calculations change in angle Chart chord members coefficients combined stresses compression members computation condition of loading cotangent of angle dead load determined eccentricity Ee BA effect eliminate end moments end rotation BA engineer entered in line equal equation error figures flexural stresses gives indicate influence lines Kips per square live load loading terms lower chord manner maximum primary stress member BC members enter METHOD OF MOMENT method of solution modulus of elasticity moment distribution moments acting panel point loads procedure relationship result rivets rota shortening shown sigma check sigma term SIGN CONVENTIONS slide rule solution of secondary solved square inch stiffness straightedge stress in member symmetrical Table Table II tension member term in Ee terms in line thesis tion triangle tricity unknown end rotations value of end