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 14
... thrust members , and vice versa ; the oblique members falling below , instead of rising above the grade , or road - way of the bridge . In this case , the long horizontal thrust member ac , is di- vided and supported in the centre , and ...
... thrust members , and vice versa ; the oblique members falling below , instead of rising above the grade , or road - way of the bridge . In this case , the long horizontal thrust member ac , is di- vided and supported in the centre , and ...
Seite 15
... thrust ) , one or more oblique forces upon the first named body , and it is the office of a bridge to furnish the medium of such horizontal transfer of pressure [ IV ] . ( 3. That a single oblique force can not alone prevent a heavy ...
... thrust ) , one or more oblique forces upon the first named body , and it is the office of a bridge to furnish the medium of such horizontal transfer of pressure [ IV ] . ( 3. That a single oblique force can not alone prevent a heavy ...
Seite 16
... thrust members of similar formed cross - sections , sustaining stress proportional to the square of the length of pieces respectively . ( 6 ) . The respective stresses of two thrust members , divided by the squares of respective lengths ...
... thrust members of similar formed cross - sections , sustaining stress proportional to the square of the length of pieces respectively . ( 6 ) . The respective stresses of two thrust members , divided by the squares of respective lengths ...
Seite 17
... thrust and tension members . XVIII . Another , and a more common form of truss for two beams , is shown in Fig . 7. These may be called three panel trusses . FIG . 6 . b b ' α с a α 70 с Fig . 7 . b a To compare these two trusses ...
... thrust and tension members . XVIII . Another , and a more common form of truss for two beams , is shown in Fig . 7. These may be called three panel trusses . FIG . 6 . b b ' α с a α 70 с Fig . 7 . b a To compare these two trusses ...
Seite 18
... thrust of abw while that of ab ' w2w . Hence the horizontal thrust of ab and fw2h = ab = w = tension of aa ' , and material for chord aaʼ , อ 4h equals 3x = 4M . Tension of be and b'd , each , equals w , and material for the two - 2 v M ...
... thrust of abw while that of ab ' w2w . Hence the horizontal thrust of ab and fw2h = ab = w = tension of aa ' , and material for chord aaʼ , อ 4h equals 3x = 4M . Tension of be and b'd , each , equals w , and material for the two - 2 v M ...
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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