DALMINE
Overview
Date/time interval
Syllabus
Course Objectives
After completing the course, the student has the basic knowledge to understand the typological features and the structural behavior of historical masonry buildings concerning both static and seismic loadings. The student can evaluate the stress and strain levels of the structural elements and acquire the ability to discern among possible rehabilitation strategies and design the necessary reinforcement solutions.
Course Prerequisites
Concepts and content of the Structural Engineering Course
Teaching Methods
The course takes advantage and is part of the innovative teaching project “On Solid Foundations”, aimed at fostering solid training and gap-less through flexible and modular training courses, that the student can select based on the personal background and cognitive skills, and the level of preparation, enabling the most motivated student the access to excellence learning paths.
The course will be structured with frontal lectures and exercises, with particular attention to foster proactivity and direct participation of the students. Flipped classroom, as well as individual and group challenges will be offered throughout the course.
The students will benefit from a specific web-portal with additional materials, for further training at home. To verify learning, the students can use a series of self-assessment tests that will allow them to identify and fill any gaps in order to promote progressive learning “On Solid Foundations”.
Assessment Methods
The exam is made of two parts: a short project and an oral exam. The student is first assigned a short project (a homework), in which the student is required to reckon with the assessment of a structure and with the conceptual design of the retrofit. In the short-project development, the student will be supervised by a design professional. A positive grade in the short project is mandatory to access the oral exam. The oral exam will be structured into three major questions to assess the achievement of the educational objectives in terms of knowledge and skills acquired by the student. The final grade of the exam is the average of the results obtained in the two tests.
Contents
- INTRODUCTION TO THE COURSE
- MATERIAL MECHANICAL AND PHYSICAL PROPERTIES
Mechanical and physical properties of wood and materials used in structural rehabilitation.
- FLOORS
Floor in existing buildings. Mechanical behavior of existing floors (strength and serviceability assessment). Retrofitting techniques for wooden floors. Wood to concrete (/lime mortar/wood) composed section (strength and serviceability analysis) and mechanical behavior of the connection systems. Exercises.
Flexural and shear strengthening of beams. Exercises.
Cantilevers.
- ROOFS
Roof typology. Flexural and sliding assessment. Roof trusses: types and structural behavior; local and global strength analysis. Strengthening techniques. Bracing of wooden roofs. Exercises.
- WALLS
Types of masonry walls. Physical and mechanical properties of masonry walls. Preliminary simplified stress analysis under gravity loads. Origin ad effect of eccentricity. Second level verifications. Exercises.
- ARCHES AND VAULTS
Types of arches. Structural behavior, techniques for the simplification of the problem and calculation of both thrusts and internal actions. Strengthening techniques: intrados and extrados ties, buttresses and props. Exercises.
Types of masonry vaults. Structural behavior of barrel vaults and cross vaults. Strengthening techniques. Exercises.
- INTRODUCTION TO SEISMIC BEHAVIOR OF EXISTING MASONRY BUILDINGS
Behavior of masonry structures subjected to horizontal loads: box behavior and macro-element behavior. Analysis of in-plane and out-of-plane local mechanisms. Strengthening techniques: perimeter ties or floor diaphragms. Brief introduction to the roof box structure technique.
Online Resources
More information
REFERENCES:
- Giuriani E., Consolidamento degli edifici storici, Utet Scienze Tecniche, 2011.
Further relevant textbooks:
- G. Carbonara: Trattato di Restauro Architettonico, ed. UTET, 1996.
- AA.VV., Wood Handbook – Wood as an engineering material. Gen. Tec. Rep. FPL-GTR-113. Madison,
WI: U.S. Departement of Agricolture, Forest Service, Forest Product Laboratory, 1999
- Mastrodicasa S., Dissesti statici delle strutture edilizie, Milano, ed. HOEPLI