An Elementary and Practical Treatise on Bridge Building: An Enl. and Improved Edition of the Author's Original WorkD. Van Nostrand, 1899 - 352 Seiten |
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Seite 1
... opposite to that with which gravity impels the body downward . This resisting force must not only act vertically upward , but the line of its action must pass through the centre of gravity of the body it sustains . All the forces in the ...
... opposite to that with which gravity impels the body downward . This resisting force must not only act vertically upward , but the line of its action must pass through the centre of gravity of the body it sustains . All the forces in the ...
Seite 3
... opposite directions , or from opposite sides of the void , with a certain stress , and the body will be sus- tained in its position . Apply two rods to it obliquely upward , of a proper degree of stiffness , in the same vertical plane ...
... opposite directions , or from opposite sides of the void , with a certain stress , and the body will be sus- tained in its position . Apply two rods to it obliquely upward , of a proper degree of stiffness , in the same vertical plane ...
Seite 7
... opposite to the resultant of the combined action of the other two . We have , then , at c , the weight w , the oblique force in the line ac , and a third force , equal and oppo- site to the horizontal constituent of the oblique force in ...
... opposite to the resultant of the combined action of the other two . We have , then , at c , the weight w , the oblique force in the line ac , and a third force , equal and oppo- site to the horizontal constituent of the oblique force in ...
Seite 8
... opposite braces . These two methods are both feasible to a certain ex- tent , and in certain cases ; and , both involve expense . Under particular circumstances , it may be a question whether the former should not be resorted to ...
... opposite braces . These two methods are both feasible to a certain ex- tent , and in certain cases ; and , both involve expense . Under particular circumstances , it may be a question whether the former should not be resorted to ...
Seite 52
... tension of de ; and , as the two forces are in opposite and parallel directions , they must be equal , being in equilibrio . Also , mlk must sustain the same compression as nm , throughout , since the 52 BRIDGE BUILDING .
... tension of de ; and , as the two forces are in opposite and parallel directions , they must be equal , being in equilibrio . Also , mlk must sustain the same compression as nm , throughout , since the 52 BRIDGE BUILDING .
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Häufige Begriffe und Wortgruppen
abutment act by tension acting by thrust amount of action arch truss assumed beam bearing bolts cast iron centre cloth compression connecting block construction counter braces cross-section curve deflection depth of truss diagram diameter draw bridges Electric Engineers equal feet flanges force full load gives gonals greater half Hence horizontal action horizontal reach horizontal thrust Illustrated inclination joists king braces latter length less liable lifting force lower chord maximum stress maximum weight morocco movable load multiplied negative resistance nodes number of panels oblique members panel truss pieces portion posts pressure produced Prof proportion rail road represented respectively rivets Second edition side single track rail span splice plates square inch strain strength of materials tension material thickness tical timber tion trapezoidal Truss Bridge truss Fig upper chord uprights vertical reach weight of structure weight sustained whence width wrought iron