Crack Response to Long-Term Environmental and Blast Vibration Effects

This paper synthesizes seven case histories of micrometer changes in the width of cosmetic cracks in a wide range of wall materials and structure types produced by long term (environmental) and transient (blast vibration) effects. Long term crack response over periods of days to weeks is compared to...

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Veröffentlicht in:	Journal of geotechnical and geoenvironmental engineering 2005-09, Vol.131 (9), p.1151-1161
Hauptverfasser:	Dowding, Charles H, McKenna, Laureen M
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Building failures (cracks, physical changes, etc.) Buildings. Public works Durability. Pathology. Repairing. Maintenance Exact sciences and technology Geotechnics Measurements. Technique of testing Structure-soil interaction TECHNICAL PAPERS
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Beschreibung
Zusammenfassung:	This paper synthesizes seven case histories of micrometer changes in the width of cosmetic cracks in a wide range of wall materials and structure types produced by long term (environmental) and transient (blast vibration) effects. Long term crack response over periods of days to weeks is compared to changes in temperature and humidity. Transient crack response is compared to peak velocity ground motions and structural response. It was found that long term, weather-induced crack response can be more than 1 order of magnitude larger than that induced by noticeable ground motions of 2.5 mm∕s (0.1 in.∕s) and that crack response correlates best with wall shear strains.
ISSN:	1090-0241 1943-5606
DOI:	10.1061/(ASCE)1090-0241(2005)131:9(1151)