The Mechanics of Construction, EtcDughton, Bull & Company, 1861 |
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Page xiii
... pier necessary to support a semicircular arch . Another formula for thickness of pier . Examples 140 145 · 146 148 Section 3 . CIRCULAR ARCHES WITH SURCHARGE . Conditions of CONTENTS . xiii.
... pier necessary to support a semicircular arch . Another formula for thickness of pier . Examples 140 145 · 146 148 Section 3 . CIRCULAR ARCHES WITH SURCHARGE . Conditions of CONTENTS . xiii.
Page xiv
... PIER IN GENERAL . Formula for thickness of pier when the centre of pressure of the base of the pier is on the exterior edge of the base Poncelet's formula , & c . . The intrados a semi - circle . Segmental arches Examples 169 175 175 ...
... PIER IN GENERAL . Formula for thickness of pier when the centre of pressure of the base of the pier is on the exterior edge of the base Poncelet's formula , & c . . The intrados a semi - circle . Segmental arches Examples 169 175 175 ...
Page 136
... piers or abutments . The highest voussoir is the key- stone , and the summit of this , the crown of the arch . The surfaces which sepa- The external and internal outlines of the structure are called respectively the extrados , and the ...
... piers or abutments . The highest voussoir is the key- stone , and the summit of this , the crown of the arch . The surfaces which sepa- The external and internal outlines of the structure are called respectively the extrados , and the ...
Page 137
... pier , falls entirely upon the exterior edge of the base of the pier at A. No masonry could withstand such a pressure as this , exerted as it is , on mere points or edges . Hence fracture is the con- sequence . According to the ...
... pier , falls entirely upon the exterior edge of the base of the pier at A. No masonry could withstand such a pressure as this , exerted as it is , on mere points or edges . Hence fracture is the con- sequence . According to the ...
Page 144
... than the minimum value of Pin ( 10 ) . v For reasons given in Articles 105 , 106 , the stability of the arch is , in general , determined by the equations ( 8 ) and ( 9 ) . STRENGTH OF PIER . 110. PROP . To find the 144 THE ARCH .
... than the minimum value of Pin ( 10 ) . v For reasons given in Articles 105 , 106 , the stability of the arch is , in general , determined by the equations ( 8 ) and ( 9 ) . STRENGTH OF PIER . 110. PROP . To find the 144 THE ARCH .
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Common terms and phrases
angle axle beam breadth c₁ catenary centre of gravity centre of pressure chain circular arch coefficient of resistance coefficient of safety common catenary compression cosec cross section cubic foot curve of pressure cylinder deflection Denote density determined diameter dimensions Edition equal equation equilibrium exterior forces extrados extremity F. A. Paley Fcap feet fibre find the thickness fixed formula fracture h₁ Hence horizontal line horizontal position horizontal thrust inertia intrados king-post length lever arm load lowest point modulus of elasticity moment of inertia moments neutral axis parabola parallel perpendicular plane preceding prism PROP r+ h r₁ radius rafter rectangular roof section HK segmental arch sin² springing line stability straining force supported supposed surcharge thickness of pier tie-beam torsion trapezoid triangle vertical pressure weight Wherefore
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