Bridges and culverts for highway traffic, flat slab and girder type ... . i corrugated up one bar 66 from end and two bars 33 from : use J/2 corrugated rounds same spacing as in G3. Bearing of Bridge on Abutment—In order to properly distri-bute the load and provide for sufficient bearing area the bridgewill be made solid for the full depth of the girders, where it rests on theabutment. This construction is desirable on all girder bridges, owingto the rigidity and general stiffness given by the solid FOR PACES 103 AND 104 IF * .or •J ?»] 9j « 11 -
Bridges and culverts for highway traffic, flat slab and girder type ... . i corrugated up one bar 66 from end and two bars 33 from : use J/2 corrugated rounds same spacing as in G3. Bearing of Bridge on Abutment—In order to properly distri-bute the load and provide for sufficient bearing area the bridgewill be made solid for the full depth of the girders, where it rests on theabutment. This construction is desirable on all girder bridges, owingto the rigidity and general stiffness given by the solid FOR PACES 103 AND 104 IF * .or •J ?»] 9j « 11 -M J - I ---j! -h 4 n I —J VI ; 5-5 I •? s 1 ?if - - 0 ji -Alt IC»f>Oy w*t>. K—4 SUBSTITUTE FOR PAGE 106 We will bend up two reinforcing bars at a point fo from abutment,and two additional ,Vh from abutment. For a distance then of fofrom the abutment we would haw two ii corrugated rounds, at aslope of 3 to 2, carrying their share of vertical shear (figuring sameon a basis of a direct stress of 12,000 pounds per square inch) of 16,200pounds. Beyond the fo point vertical stirrups must be provided tocarry the excess shear. The following table gives the values for the shear at various sec-tions and data determining the stirrup spacing: Stirrups—[Shaped, H Corrugated Rounds, /=9,6oo. Distance from Abutment. Vert. V. 46 7 8 12 16 42,200 ,440 ,200 ,400 ,200 ,200 ,100 ,000 lbs. 22,400 ,400 lbs. / - V-{Ve+V%) Spacing= d P 16,200 lbs. 3,600 ,200 lbs. 22,400 lbs. 16,200 ,400 lbs. 16,200
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectconcrete, bookyear190
