- Title
- A review of a dynamic test loading pattern for in-plane masonry experiments
- Creator
- Nichols, J. M.; Totoev, Y. Z.
- Relation
- 8th International Masonry Conference 2010. Proceedings of the 8th International Masonry Conference 2010, Volume 1 (Dresden, Germany 4-7 July, 2010)
- Relation
- http://www.masonry.org.uk/masonry/publications/proceedings_of_conferences/papers_from_all_published_conference_proceedings/proceedings_11/volume_1_d_201_a_review_of_a_dynamic_test_loading_pattern_for_in_plane_masonry_experiments
- Publisher
- The International Masonry Society (IMS)
- Resource Type
- conference paper
- Date
- 2010
- Description
- This experimental project focuses on the evolution of the damage mechanic properties for un-reinforced masonry panels, which are subjected to dynamic in-plane shear. The results from the initial panels show the degradation of the effective stiffness with loading time. These results also show that the evolution of the effective stiffness, for these test conditions, is slower than commonly assumed. This evolution appears to be a function of the loading conditions, and level of pre-existing damage, at a particular time-step. A statistical determination of the evolution of the damage parameter for a ceramic material requires firstly, the development of a repeatable time varying load pattern. Secondly, the pattern should resemble the essential characteristics of relevant earthquake loading on realistic masonry buildings, preferably from earthquakes recorded in both interplate and intraplate regions. Finally, the pattern should pass the criteria of similarity to existing patterns, whilst providing sufficient statistical information to allow the encapsulation of the internal Damage Variable. This paper sets out the development of the analytical criteria for the Loading Pattern. It summarizes the results from the first test panel. We provide a refined Loading Pattern, which has a greater number of tests at each amplitude-frequency point and a number of other minor changes. The revised pattern meets the original criteria, whilst increasing the available statistical information.
- Subject
- dynamic test; loading patterns; damage; masonry panels
- Identifier
- http://hdl.handle.net/1959.13/935013
- Identifier
- uon:11943
- Identifier
- ISBN:9783000313813
- Language
- eng
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