Straight Beams
Beams are the horizontal members used to support vertically applied loads across an opening. In a more general sense, they are structural members that external loads tend to bend, or curve. …
Tag: Stress
Stress and Strain
Structural capacity, or ultimate strength, is that property of a structural member that serves as a measure of is ability to support all potential loads without severe cracking or excessive deformations. …
Members Stressed Primarily in Bending
Rolled beams and fabricated girder spans provide economical bridges for railways. Laying out the lateral bracing system and diaphragms or cross frames is the first step in the design procedure. Some …
Fatigue Design
Repetitive loading from locomotives and rolling stock can cause fatigue cracks to develop and grow in steel bridges. To guard against this possibility, a cyclic stress life is assigned to bridges, …
Basic Allowable Stresses
Table 11.29 lists the allowable stresses for railroad bridges recommended in the AREMA Manual. The stresses, ksi, are related to the specified minimum yield stress Fy , or the specified minimum …