Syllabus 2009/2010 VTA016

Syllabus academic year 2009/2010
(Created 2009-08-11.)

BUILDING ACOUSTICS

VTA016

Higher education credits: 7,5. Grading scale: TH. Level: G2 (First level). Language of instruction: The course will be given in English on demand. Optional for: V4hb. Course coordinator: Delphine Bard, Delphine.Bard@acoustics.lth.se, Byggnadsmekanik. Assessment: For grade 3 (pass) a precence of minimum 80% of the lectures is required, a laboration, a project task and a written examination. The course is then graded from the project task and the result of the written examination. Home page: http://www.akustik.lth.se.

Aim
To give the students more profound knowledge about acoustic and vibrational fenomenons relating to buildings such that an acoustic projecting of the students will lead to a satisfying acoustic environment.

Knowledge and understanding
For a passing grade the student must

Be able to give an overview of what authorities that issue regulations on the acoustic environment.
Be able to describe noise and vibrational problem caused by external sources (transport and industry), propagation of sound and measures for decreasing generation and propagation of sound.
Be able to explain and describe the most important psychoacoustic concepts including subjective the corresponding objective room acoustical measures.
Be able to describe properties and functions of resonance and porous absorbents and the influence of material parameters and dimensions on the absorbation.
Be able to describe how material parameters, dimensions and performance of building constructions influence the sound insolation in buildings.

Skills and abilities
For a passing grade the student must

Be able to perform a room acoustic planning of rooms and halls for speech and/or music regarding form, proportioning and room clothing and furnishing.
Be able to perform measurements and calculations of step sound insulation and air bourne insulation according to Swedish standard.
Be able to interprete and analyse a measured sound insulation curve.
Given an acoustic problem, be able to calculate air bourne- and step sound insulation between rooms according to a standardized model.
Be able to present the solution of an acoustic problem in a technical report.

Contents
Various building systems are considered. In particular, systems involving concrete, wood and steel are treated. Models to predict the perception of sound inside a building are presented. An obligatory project exercise containing the sound environment inside buildings.

The course includes the sound environment in buildings with different frames. Advantages and disadvantages with concrete, steel and wood frames is treated. The erection of the buildning parts as well as the properties of the building systems is also treated. Room acoustics, trafic noise, vibrations and vent noise is included in the course. The sound experience is treated using different psychoacoustic models.

An important course moment is the construction task, which will result in a written report and an oral presentation to all participants. In this moment there is a possibility to ask questions and give critique. The students also has an active roll as opponents.

Literature
Vigran, T. E. Bygningsakustikk - et grunnlag. Tapir akademisk forlag 2002. ISBN: 82-519-1725-5
Lecturing notes
Laboratory instructions: "Ljudisolering" och "Absorption"
Project tasks