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ST-7 | Concrete and Masonry Structures (1)

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

Titular:

prof.dr.ing. Mircea Crişan

Teaching Staff:

lector ing. Vlad Petrescu, asist. ing. Basarab Cheşcă, asist. ing. Andra Covaleov, ing. Alina Goga

Learning outcomes:

- Understanding of strength and stability requirements in the design of architectural objects.
- Understanding of preliminary structural design requirements of reinforced concrete members.
- Knowing the specificities of reinforced concrete frames structures behavior
- Learning the general conformation rules and preliminary architectural and structural design of reinforced concrete frames.
- Understanding the basic rules for preliminary design of reinforced concrete columns and beams.
- Knowing of specific terms and representation rules.

Content:

Failure mechanism of double fixed beams. Plastic hinges. Sectional forces diagrams on beams for triangular and trapezoidal loads in the last stage.
Concrete: composition; strength; class; stress-strain diagram. Steel: strength, stress-strain relation
Reinforced concrete as a composite material. Computation hypothesis
Reinforced concrete elements under centric compression; reinforced concrete and steel elements reinforced column.
Reinforced concrete members under centric tension; ties.
Reinforced concrete members under pure bending; cross section equilibrium relations. Simple rectangular reinforced concrete section. Longitudinal reinforcement of concrete beams.
Reinforced concrete members under bending with shear force. Shear reinforcement of concrete beams.
Reinforced concrete members under eccentric compression; axial force – bending moment diagrams. Adimensional axial force.
Preliminary design of frame structures. Multistory frames under wind loads. Shear force and bending moment diagrams on equivalent cantilever. Indirect axial forces in columns.
Seismic specificity of Romania. Computation and distribution of seismic force according to Romanian norm P100/06.
Linear member stiffness. Stiffness blocks. Parameters of stiffness block. Story stiffness. Lateral stiffness diagrams on frames. Peculiarities of lateral stiffness diagrams.
Lateral displacements diagrams on reinforced concrete frames under horizontal loads.
Reinforced frame joint. Joint equilibrium. Sectional forces diagrams on frames members. Frames joints problems.
Seismic frames beams. Bending moment and shear force envelopes. Preliminary design and reinforcement of seismic beams.

Teaching Method:

Theoretical lectures in alternation with practical applications examples. Guided practical exercises.

Assessment:

Continuous evaluation (practical exercises) - 40%
Written final examination at the end of the semester - 60%

Bibliography:

CIŞMIGIU, A. - Teoria structurilor în arhitectură - breviar, IAIM 1972
CIŞMIGIU, A. - Teoria structurilor - prelegeri selectate, IAIM 1978–1979
CIŞMIGIU, A. - Aplicaţii de teoria structurilor, IAIM 1981