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 4
... nearly the same level , a simple beam affords the most convenient and most economical means , until these points exceed a certain distance asunder , which distance will vary with circumstances ; but in bridge building , will seldom be ...
... nearly the same level , a simple beam affords the most convenient and most economical means , until these points exceed a certain distance asunder , which distance will vary with circumstances ; but in bridge building , will seldom be ...
Seite 24
... nearly the same as for truss , Fig . 8 . v XXII . As for braces in truss 9 , we have already seen that each brace sustains weight equal to w , multi- tiplied by the number of panels crossed by its fellow , and divided by the number of ...
... nearly the same as for truss , Fig . 8 . v XXII . As for braces in truss 9 , we have already seen that each brace sustains weight equal to w , multi- tiplied by the number of panels crossed by its fellow , and divided by the number of ...
Seite 25
... nearly equal advantage in both plans , and with about the same amount of action . But the 30 per cent advantage as to amount of action upon tension material , would still be in favor truss 8. Besides , it is only in exceptional cases ...
... nearly equal advantage in both plans , and with about the same amount of action . But the 30 per cent advantage as to amount of action upon tension material , would still be in favor truss 8. Besides , it is only in exceptional cases ...
Seite 30
... nearly the relative amount of tension material required in the several plans ; while , as previously stated , the amount of compression material is not so nearly indicated by the figures and expressions giving the amount of action ( sum ...
... nearly the relative amount of tension material required in the several plans ; while , as previously stated , the amount of compression material is not so nearly indicated by the figures and expressions giving the amount of action ( sum ...
Seite 41
... nearly the same as that exerted by fj , and represented on the diagram by it ' [ XXIX ] , 2w " , then , may be regarded as the maximum compression of cn . 6 = The vertical dm , can never suffer compression to SEVEN PANEL TRUSSES . 41.
... nearly the same as that exerted by fj , and represented on the diagram by it ' [ XXIX ] , 2w " , then , may be regarded as the maximum compression of cn . 6 = The vertical dm , can never suffer compression to SEVEN PANEL TRUSSES . 41.
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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