A Treatise on Civil Engineering |
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Page 143
... subjected to direct compression is placed by most authorities at from 4th to th of the crushing weight , when the beam , a column for exam- 123456 Chord of arc fallen through ] in feet . STRENGTH OF CAST - IRON . 143.
... subjected to direct compression is placed by most authorities at from 4th to th of the crushing weight , when the beam , a column for exam- 123456 Chord of arc fallen through ] in feet . STRENGTH OF CAST - IRON . 143.
Page 144
... chord of recoil of ball ] in inches . Observed deflec- tion of bar in ] inches . Chord of arc fallen through | in feet . Impact with iron ball . of recoil of ball ] in inches . Observed chord 6.5 13 .24 .46 19 .73 27 .97 34 1.30 47 1.60 ...
... chord of recoil of ball ] in inches . Observed deflec- tion of bar in ] inches . Chord of arc fallen through | in feet . Impact with iron ball . of recoil of ball ] in inches . Observed chord 6.5 13 .24 .46 19 .73 27 .97 34 1.30 47 1.60 ...
Page 145
... Chord of arc Observed deflec- tion in inches . tion in inches . of fallen through . fallen through . 2345678 I .46 ... Chords of arcs in feet . Mean deflections of the two bars in inches . Mean Chords of arcs in feet . deflections Mean ...
... Chord of arc Observed deflec- tion in inches . tion in inches . of fallen through . fallen through . 2345678 I .46 ... Chords of arcs in feet . Mean deflections of the two bars in inches . Mean Chords of arcs in feet . deflections Mean ...
Page 146
... chord of the arc fallen through , or as the velo- city of impact . " The following conclusions are drawn from the experiments . ( 1. ) " If different bodies of equal weight , but differing con- siderably in hardness and elastic force ...
... chord of the arc fallen through , or as the velo- city of impact . " The following conclusions are drawn from the experiments . ( 1. ) " If different bodies of equal weight , but differing con- siderably in hardness and elastic force ...
Page 253
... chord of about one foot may be set off on each side of the point through which the normal is to be drawn , and the chord of the whole arc , thus set off , be bisected by a perpendicular . This construction will generally give a ...
... chord of about one foot may be set off on each side of the point through which the normal is to be drawn , and the chord of the whole arc , thus set off , be bisected by a perpendicular . This construction will generally give a ...
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abutments action arch arranged artificial axis bars beam béton blocks bolts bottom breaking strain brick bridge caisson calcined carbonic carbonic acid cast iron centre chains chord clay common lime compression concrete connected construction cross curved cylinder deflection depth diagonal diameter durability embankment engineer experiments exterior feet flanch foundation fracture give hard heat Hodgkinson horizontal hot blast hydraulic cement hydraulic lime immersion joints kiln laid layer length limestones lower magnesia masonry mastic material ments metal mortar ordinary pieces piers pillars placed plates portion Portland cement pressure proportion puzzolana rails resistance ribs roadway Roman cement sand sheeting piles side slaked sleepers soffit soil solid span specific gravity spikes square inch steel strength structure struts suitable surface tensile tensile strength termed thickness timber tion transverse strain truss tube upper usually vertical voussoirs wall weight wire wrought iron yield
Popular passages
Page 136 - ... elasticity ; and judging from its slow increase afterwards, I was persuaded that it had not come on by a sudden change, but had existed, though in a less degree, from a very early period.
Page 419 - ... long. The fascines are laid in alternate layers crosswise and lengthwise, and the layers are either connected by pickets, or else the withes, with which the fascines are bound, are cut to allow the brushwood to form a uniform and compact bed. This method of securing a good bed for structures on a weak wet soil has been long practised in Holland, and experience has fully tested its excellence.
Page 175 - For the coping and top courses of a wall, the same objections do not apply to excess in length : but this excess may, on the contrary, prove favorable ; because the number of top joints being thus diminished, the mass beneath the coping will be better protected, being exposed only at the joints, which cannot be made water-tight, owing to the mortar being crushed by the expansion of the blocks in warm weather, and, when they contract, being washed out by the rain.