Reinforced Concrete Structures.- Restrained Imposed Deformations versus Loads.- Reinforced Concrete Building Design - The State of the Current Limits.- Review of Coarse Softening Analysis of Framed Concrete Structures.- Moment Redistribution in Reinforced Concrete Structures.- Elastic Rational Analysis and Tests of Unbraced Concrete Frames.- On Shear Failure of R/C Thin-Webbed Beams Limit and Evolutive Analyses: A Close Contest.- Loading on Concrete Structures During Construction.- Comparison of Fixed and Rotating Crack Models in Shear Design of Slender Concrete Beams.- 'Clean' Physical Model of Cracked Reinforced Concrete Plane Element.- Abstract from the Supporting Document of Eurocode 2 on Non Linear Analysis.- Experimental Research of Reinforced Concrete Columns Behaviour under the long-term Eccentric Normal Force.- Modelling Impact Loading of Reinforced Concrete Structures.- Prestressed Concrete Structures.- Tendon Stress in Unbonded Partially Prestressed Concrete Beams.- On the Choice of Prestressing Percentage in PPC Elements.- Stress at Ultimate in Unbonded Prestressing Tendons by Strain Compatibility.- Stresses and End Cracks in Anchorage Zones of Post-Tensioned Prestressed Concrete Beams.- Fatigue Resistance of Post-Tensioned Cables in Partial Prestressing.- Aseismic Prestressed Concrete Structures with Confined Concrete.- Structural Optimization.- Procedural and Declarative Aspects of Optimum Structural Design.- Two Notes on Structural Optimization.- Reliability-Based Structural Optimization Research at the University of Colorado: A Brief Retrospective 1983-1991.- Design Optimization of Civil Engineering Structures: A Retrospective.- Approximations for Structural Optimization.- Optimal Plastic Design of Imperfect Frame Structures.- Nonlinear Material Behaviour.- Consistent Finite Element Models for Elastic Plastic Kirchhoff Plates.- Variational Formulations of the Linear Viscoelastic Problem with General Viscous Kernels.- Application of Strain Energy in the Characterization of Non-Linear Polymeric Materials.- Incremental Elastic-Ziegler Kinematic Hardening Plasticity Formulations and an Algorithm for the Numerical Integration with an 'A Priori' Error Control.- Large Plastic Deformation of Short Tubes and Rings.- Mathematical Expressions of Non-Linear Behaviors in Structural Mechanics.- Structural Engineering.- The Degree of Restraint - A Useful Concept for Practical Stability Analysis (columns, frames, bars on elastic foundations, shells).- Expert Systems in Design of Structures: An Application to Bridges.- Reliability of Flexibly-Connected Steel Frames in Sway.- Safety Level Selection using Social Indicators.- Static Behavior of a Bearing Brick Wall Leaning on Localized Supports: A Case Study Concerning the Consolidation Project of the S. Faustino Convent in Brescia.- The Mesh Description for Structural Analysis by Mathematical Programming.- Partial Reliability Factors for Material Properties.- The Influence of the Basic Parameters on the Load Bearing Behaviour of Cable Stayed Bridges.