An Elementary and Practical Treatise on Bridge Building: An Enl. and Improved Ed. of the Author's Original WorkD. Van Nostrand, 1872 - 317 Seiten |
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abutment act by tension acting by thrust amount of action arch truss assumed bars beam bearing bolts cast iron cent centre chord plates compression connecting block connecting pin construction counter-bracing cross-section curve deflection depth of truss diameter equal extend feet flanges forces full load gives gonals greater Hence horizontal action horizontal reach horizontal thrust inclination Independent Arch joint joists king braces latter length less liable lifting force lower chord main diagonals maximum stress maximum weight movable load multiplied negative resistances nodes number of panels opposite panel truss pieces portion produced proportion quired rail road represented respectively rivets screw seen side splice plates square inch strain sway rods sway-rods thickness thrust members tical timber tion trapezoidal Truss Bridge truss Fig truss rods upper chord upright vertical reach weight of structure weight sustained whence width wrought iron