Sekundarni jezik: |
Angleški jezik |
Sekundarni naslov: |
Studies of retrofitting measures for stone masonry walls |
Sekundarni povzetek: |
In the diploma thesis, shear tests were performed and the behaviour of two strengthened
three-layer stone masonry walls, plastered on one side, was analysed. Appropriate
retrofitting measures were determined. Plastered stone masonry walls, which were built with
lime mortar represent the walls of cultural heritage buildings and were damaged in previous
shear tests. Aim of this study was to determine appropriate measures for their retrofitting.
Following previous shear tests, damaged walls were grouted along the main cracks and one
of them additionaly reinforced with glass fiber cord inserted in repointed horizontal joints. To
determine an appropriate grout injection mixture, four different grout mixtures were tested;
three lime-based and one lime-cement with 20% of lime. The appropriate grout injection
mixture was chosen on the basis of the properties of fresh mixture gainded through four
different experimental tests and the results of six different tests on hardened injection
mixture. The latter were performed on pre-prepared test specimens in the form of cylinders
and prisms of standard dimensions. After grout injecting, the mortar was removed from
horizontal joints till certain depth from one of the walls and glass cords of 6 mm diameter
were installed by using a cement lime mortar. The cords were inserted along bed joints on
the unplastered side of the wall. Shear tests were carried out in the laboratory of the Faculty
of Civil and Geodetic Engineering in Ljubljana. The walls have been vertically loaded and
tested under cyclic horizontal loading. The obtained results have been used to determine
maximum displacements and forces. On the basis of idealized hysteretic response loops,
effective shear stiffnesses, ductility factors and tensile strengths of the walls were
determined. The results of both walls were compared one to another and the effectiveness of
strengthenint techniques were evaluated through the comparison with the results of previous
tests on unreinforced walls. |
Sekundarne ključne besede: |
graduation thesis;civil engineering;stone masonry walls;cultural heritrage;retrofitting;grouting;NSM;glass fiber cord;grout mixtures;shear tests; |
Vrsta datoteke: |
application/pdf |
Vrsta dela (COBISS): |
Diplomsko delo |
Komentar na gradivo: |
Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo |
Strani: |
XXIV, 164 str. |
Ključne besede (UDK): |
applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;civil and structural engineering in general;gradbena tehnika;gradbeništvo;structural design;graphical and analytical statics for investigation and calculation of structures;gradbena statika;applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;building (construction) trade;building materials;building practice and procedure;gradbeništvo;gradbeni materiali;gradbene obrti in dela;building materials;building components;gradiva;gradbeni [konstrukcijski] deli;applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;building (construction) trade;building materials;building practice and procedure;gradbeništvo;gradbeni materiali;gradbene obrti in dela;structural parts and elements of buildings;gradbeni deli in stavbni elementi; |
ID: |
81060 |