Več - Fakulteta za arhitekturo - Univerza v Ljubljani

1.4 OSNOVE TEHNIŠKE MEHANIKE BASICS OF TECHNICAL MECHANICS
1. letnik 105 ur
obvezni predmeti compulsory subjects
doc. dr. Vojko Kilar, univ. dipl. inž. grad.
- Salvadori, M.: Konstrukcije v arhitekturi, DZS, Ljubljana 1979
- Dobovišek, B.: Osnove tehniške mehanike, povzetek predavanj, FA, Ljubljana 1998
- Benedik, B. S.: Statika konstrukcij, Fakulteta za gradbeništvo, Maribor 1998
- McGill, D. J. and King, W. W.: Engineering mechanics, statics, PWS-KENT, Boston 1989
- Nash, W. A.: Schaum’s outline of theory and problems of strength of materials, McGraw-Hill 1994
Osnove tehniške mehanike je predmet, ki študente arhitekture uvaja v osnovne zakone tehniène mehanike in jim daje osnovna znanja, ki jih
potrebujejo pri drugih statièno-konstrukcijskih predmetih v višjih letnikih. Vsebina predmeta pokriva pomembnejša poglavja osnov statike, v zadnjih
letih pa dajemo veèji poudarek tudi na prikazu praktiènih primerov uporabe pridobljenega znanja. Poleg praktiènih primerov in filmov ter
diapozitivov uporabljamo tudi modelne vaje (izdelava modelov konstrukcij iz lesa) in animacije z raèunalniškimi programi. Vsebina: Zakoni
mehanike, sila, moment, napetost, ravnotežje, zunanje in notranje sile, ravninski sestav sil, reakcije ravninskih konstrukcij, statièna nedoloèenost,
prednosti in slabosti statièno nedoloèenih konstrukcij. Osne sile, napetosti, deformacije, Hookov zakon, elastiènost, plastiènost, vitkost, uklon,
dimenzioniranje na uklon, praktièni primeri. Osnovne mehanske lastnosti gradiv (armirani beton, jeklo, les, aluminij, steklo, plastika), kriteriji za izbiro
gradiva (odnosi: teža, nosilnost cena). Palièja, osne sile in približno dimenzioniranje, primeri uporabe. Vrvi, vrvne konstrukcije, poenostavljen raèun
vrvi, primeri uporabe. Geometrijske karakteristike in njihov raèun: prerez, težišèe, statièni, vztrajnostni in odpornostni momenti. Upogibne konstrukcije,
upogib, upogibni moment, preèna sila, upogibne napetosti, primeri upogibnih nosilcev. Ravninsko napetostno stanje, kombinacija upogiba in osne
sile; jedro prereza, temelji. Statièno doloèene konstrukcije, nosilci, sestavljeni nosilci, okvirji, loki in njihovo obnašanje. Prostorske konstrukcije, reakcije,
notranje sile, primeri (brane, plošèe, poliedriène lupine, membrane, tanke lupine in prostorska palièja). Torzija, polarni vztrajnostni moment, napetosti
pri torziji, odprti in zaprti prerezi, praktièni primeri torzije v stavbah (jedra, nesimetrija…) Sovisnosti med kolièinami stanja, upogibnica, raèunanje
deformacij po metodi virtualnega dela. Osnove statièno nedoloèenih konstrukcij; metoda sil.
The course Introduction to technical mechanics gives students the basic principles of technical mechanics and fundamental knowledge needed for
other statics and construction courses in senior years. The subject’s contents cover the most important chapters of basic statics, while in the latest
years emphasis is given to presentations of practical examples of using obtained knowledge. Besides practical examples, films and slides we also
use modelling exercises (constructing wooden construction models) and computer program animations. Contents: Laws of mechanics, force,
momentum, tension, balance, internal and external forces, planar composition of forces, reactions of planar constructions, static indeterminacy,
advantages and weaknesses of statically indeterminate constructions. Axial forces, tension, deformations, Hook’s Law, elasticity, plasticity, slenderness,
bending, dimensioning on bending, practical examples. Basic mechanical properties of materials (reinforced concrete, steel, timber, aluminium, glass,
plastics), criteria for choosing materials (relations: weight, load-bearing capacity, price). Frames (trusses), axial forces and approximate
dimensioning, examples of use. Geometrical characteristics and their calculation: cross section; gravity centre; moments of inertia. Bending constructions,
bending, bending momentums, axial force, bending stress, examples of bending constructions. Planar stress condition, combination of bending
and axial forces; cross-section core, foundations. Statically determined constructions, beams, Gerber beams, frames (trusses), arches and their
behaviour. Spatial constructions, reactions, internal forces, examples (grids, plates, polyhedrical domes, membranes, thin domes and spatial trusses).
Torsion, polar moment of inertia, stress in torsion, open and closed cross-sections, practical examples of torsion in buildings (cores, asymmetry...).
Relations between moments, shear forces and deformations, calculating deformations by the virtual work method. Basics of statically undefined
constructions; method of forces.
46
46 dodiplomski studij graduate course