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 11
... whole amount of thrust material = 5M . Thus we see that the two plans require each the same precise amount of material for sustaining both tension and thrust , upon the supposition that the material is capable of sus- taining the same ...
... whole amount of thrust material = 5M . Thus we see that the two plans require each the same precise amount of material for sustaining both tension and thrust , upon the supposition that the material is capable of sus- taining the same ...
Seite 18
... whole tension material equal to ( 4 + 2 ) M , being the same co - efficient 0 of M as was obtained for compression . In truss Fig . 7 , ... ab and a'b ' ( = D = ✓h3 + v3 ) , evi- dently sustain each a weight equal to w , and a stress ...
... whole tension material equal to ( 4 + 2 ) M , being the same co - efficient 0 of M as was obtained for compression . In truss Fig . 7 , ... ab and a'b ' ( = D = ✓h3 + v3 ) , evi- dently sustain each a weight equal to w , and a stress ...
Seite 19
... whole amount of tension material in M truss 7 , which is less by M , than in the case of truss Fig . 6 . XIX . With regard to thrust material , it is clear that while in truss 6 , the weight on either pair of braces , is transferred in ...
... whole amount of tension material in M truss 7 , which is less by M , than in the case of truss Fig . 6 . XIX . With regard to thrust material , it is clear that while in truss 6 , the weight on either pair of braces , is transferred in ...
Seite 21
... whole chord ; uniform weights at the four bearing points in each , and м = weight of material required to sustain a stress equal to w , with length equal to 1 ; then , making in truss 8 , it is obvious that the two abutments at a and ƒ ...
... whole chord ; uniform weights at the four bearing points in each , and м = weight of material required to sustain a stress equal to w , with length equal to 1 ; then , making in truss 8 , it is obvious that the two abutments at a and ƒ ...
Seite 22
... whole arch . The tension of the chord af ( Fig . 8 ) , has been seen to be equal to 3w , whence , multiplying by the length , 3h 5h , and changing w to M , we have 15 , — material for chord . D = = = The 4 verticals sustain each ...
... whole arch . The tension of the chord af ( Fig . 8 ) , has been seen to be equal to 3w , whence , multiplying by the length , 3h 5h , and changing w to M , we have 15 , — material for chord . D = = = The 4 verticals sustain each ...
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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