Abstract: The role of secondary moments and amount of stress redistribution at various stages of loading up to the collapse of continuous prestressed concrete beams is investigated. The related questions arising from contradictory ...

Abstract: The objective of this paper is to explore the potential of the lumped‐plasticity program STRUPL‐1C and to illustrate its use as a practical engineering tool for the nonlinear analysis of concrete structures. This result ...

Abstract: Yield safety is introduced as a variable that controls both the cracking under service conditions and the permissible redistribution of ductile structural concrete frameworks at the ultimate limit state. Limiting values ...

Abstract: Earlier studies on the design of reinforced concrete structures by equilibrium‐serviceability methods (that simultaneously satisfy collapse and service criteria) are extended to continuous prestressed and partially prestressed ...

Abstract: This paper presents a practical and efficient approach to the optimization of prestressed concrete structures if two or more (possibly conflicting) objectives must simultaneously be satisfied. The most relevant objective ...

Abstract: Superstructure design of short‐ and medium‐span highway bridge systems may be conceived as a process of multilevel and multiobjective optimization. Three optimization levels are identified: (1) Level 1—component optimization; ...

Abstract: Mathematical programming techniques are used for the solution of a comprehensive optimal design problem formulation. The formulation, based on American codes of practice, includes constraints related to service, ultimate, ...

Abstract: Optimal design techniques have been extensively applied to steel structures and, to a lesser degree, to reinforced concrete structures. In the latter case, for given geometry and preassigned ...

Abstract: The theory of structural optimization has advanced considerably during the last three decades as is illustrated by the vast number of published books, surveys, and papers on the subject. On the other hand, application of ...

Abstract: Optimal (minimum weight) solutions for plastic framed structures under shakedown conditions are found by linear programming. Designs that are optimal for two failure criteria (collapse under fixed ...