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ST-1 | Static of Built Shapes

Compulsory Course | Hours/Week: 2C+1S | ECTS Credits: 3

Titular:

prof.dr.ing. Mircea Crişan

Teaching Staff:

lect.drd.ing. Vlad Petrescu, asist.drd.ing. Basarab Cheşcă, asist.drd.ing. Andra Covaleov

Learning outcomes:

Acquiring general knowledge about buildings culture in close relation with the history of architecture.
Acquiring some basic knowledge for the better understanding of the buildings from technical point of view.
Understanding of the load bearing structure as a part of architecture aiming to assure its strength and stability.
Understanding the basic elements of construction theory and static equilibrium of built shapes in close relation with the materials they are made of as well as with the construction technology specific for the period they are built in.
Acquiring basic knowledge of structural analysis for load bearing structures. Acquiring basic knowledge about the strength of materials and the preliminary architectural and structural design of buildings.

Content:

Static equilibrium: from megalithic structures to Greek temple
Loads. Material properties. Structural elements and their role.
Force concept from Aristotel to Leonardo da Vinci.
Force moment. Force as a vector. Resultant force and moments. Parallelogram of forces (Stevin, Robeval).
Graphical and analytical resultant of a system of forces. Equilibrium of the material point under external forces. Trusses.
Rigid body equilibrium without constraints. Moment of force with respect to a point Varignon's theorem.
Rotational Equilibrium: Parallel Forces; Torques; Center of Parallel Force. Center of Gravity. Constraints theory. Supports.
Staticaly determinate and indeterminate structures.
Mechanical work done by a force. The principle of virtual mechanical work in Descartes and Bernoulli Theorem. Gerber beams.
Rigid body equilibrium from energy point of view.
Loads-stresses differential relations. Axial, shear force and bending moments diagrams for beams and columns.
Relation between shape and structure. Curved line as a expression of strength. Static of the arch. Triple hinged arch.
Axial, shear force and bending moment diagrams for arches, cables, beams and L shape beams.
Special structures with special forms/shapes. Structural shapes/forms starting from arches; Vaults systems.
From arch to beam. From the triple hinged arch to triple hinge frame.
Axial, shear force and bending moments diagrams for triple hinged frames. Combined arch-frame structures.
Cable stayed structures. Combined roofing structures made out of cables and stiff elements.
Structures made of corrugates sheets. Structures made of spatial curved surfaces.

Teaching Method:

Theoretical speeches together with PowerPoint presentation; Theoretical information is supported by practical examples with famous buildings. Teacher supervised exercises.

Assessment:

Two interim evaluations (Practical applications) - 40%
Final exam - 60%
The marks for each of the two components should be at least five in order to pass the exam.

Bibliography:

CRIŞAN, Mircea - Course Handouts, UAUIM, 2008
ADAM, Jean-Pierre - Arheologia între adevăr şi impostură. Ed. Meridiane, Bucureşti 1978
IONESCU, Dan - Mecanica structurilor I şi II. UAUIM, 1975
PIZZETTI, G, ZORGNO TRISCIUOGLIO, A.M - Principi statici e forme strutturali. UTET, Torino 1980
SALVADORI, Mario - De ce cad structurile. Ed.Tehnică, Bucureşti 1998
SALVADORI, Mario - Mesajul structurilor. Ed.Tehnică, Bucureşti 1991
SALVADORI, Mario - Construcţii. Lupta împotriva gravitaţiei. Ed.Albatros, Bucureşti 1983
SIEGEL, Curt - Forme structurale ale arhitecturii moderne. Ed.Tehnică, Bucureşti 1968