Structural engineering I

Code: -
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ICAR/09
General criteria and applicative techniques aimed at design, safety checks and construction aspects of reinforced concrete structural members and simple framed structures. The course includes: general concepts of structural safety and design of structures; mechanical behaviour and constitutive laws of structural materials, as concrete and steel; design and safety checks of reinforced concrete structural members according to semi-probabilistic limit states method (ultimate and serviceability limit states) and national technical codes and Eurocodes; definition of the actions and load combinations; application of the methods of structural analysis for framed structures (force method and displacement methods) and for foundation beams on elastic soil; construction aspects and techniques of reinforced concrete structures; simple structural design applications.

Lesson hours:

72

Practice hours:

-

Propaedeuticities:

Structural mechanics

Credits:

9

Types of examinations:

The final exam will be written and oral

Teacher:

-

Objectives:

The course provides the basic knowledge and methodologies for the calculation and safety check of reinforced concrete structural members within the semi-probabilistic limit states method, as well as the general criteria for the design of simple reinforced concrete framed structures and their foundations. During the course reference is made also to the most recent structural codes, particularly Italian Technical Regulations for Constructions and Structural Eurocodes and to the construction aspects and techniques.

Contents:

[1 CFU] Recalling concepts from structural mechanics – Bernoulli beam theory; calculating normal and shear stresses acting on a cross-section; Mohr corollaries;

[1 CFU] Solving simple and redundant structures: diagrams of bending moment, shear and axial force; the force and displacement methods for solving redundant structures, assembly of the stiffness matrix, the use of known formulas for calculating camber. 

[1 CFU] Construction materials and structural safety: Concrete mix design; – Constitutive laws and mechanical behavior for steel and concrete; – The mechanics of steel-concrete bond;

[1 CFU] Fundamentals of structural reliability: the semi-probabilistic method of the Italian structural code, based on limit-states. 

[1 CFU] Reinforced concrete design against static loads: Ultimate Limit State; sectional calculations under flexure, sectional calculations and failure domains under flexure and axial force, shear strength of members with and without transverse reinforcement, torsional strength; – Ductility and curvature, design of reinforced concrete members for strength and ductility;

[1 CFU] Serviceability Limit State:homogenized cross-section, calculating stresses in the cracked section, pure and composite flexure under small and large eccentricity, cracking and deformation problems. 

[1 CFU] Structural analysis methods: Solving multi-story and multi-bay shear-type frames; – Fundamentals of matrix algebra; – Fundamentals of two-dimensional structures; – Winkler-type beams on elastic substrate. 

[1 CFU] Applications: Design of a reinforced concrete floor with masonry insets, structural model, load combinations, calculation of required reinforcement;

[1 CFU] Design of a reinforced concrete frame on foundation beam: preliminary design, load combinations, calculation of required reinforcement, minimum reinforcement.

Teaching materials:

– Cosenza, E., Manfredi, G., & Pecce, M. (2019). Strutture in cemento armato–basi della progettazione. Ulrico Hoepli Editore, Milano, Italia.

– Handouts from the professors’ websites.