Suggestions for Cost Effectiveness on Concrete Bridge Piers and Abutments
Marius B. Wechsler
Appears on pages(s):
bridge abutments; bridge anchorages; bridge foundations; bridge piers; bridges (structures); columns (supports); construction costs; economics; footings; precast concrete; reinforced concrete; skew bridges; structural design; substructures
Substantial cost savings can be obtained on bridge construction by: 1. Determining the shapes of piers and abutments based on the fact that the side dimensions of an economical rectangular cross section should be poportional to the overturning moments for the two co-responding directions. 2. Providing normal bridge seats cantilevered over skewed piers. 3. Providing precast backwalls for abutments built under traffic. 4. Outlining anchorage abutments for suspension bridges or for aerial railways based on the fact that the safety factors for the two possible overturnings shall be equal.