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POSSIBLE SOLUTIONS BEFORE AND IMMEDIATELY AFTER EARTHQUAKE PROF. CLAUDIO MODENA Sonic tests Crypt, test S-C-FJ 12011 12 13 14 105 9021 22 23 24 75 6031 32 33 34 45 3041 42 43 44 15 2700 m/s 2600 m/s 2500 m/s 2400 m/s 2300 m/s 2200 m/s 2100 m/s 2000 m/s 1900 m/s 1800 m/s 1700 m/s 1600 m/s 1500 m/s 1400 m/s 1300 m/s 1200 m/s 1100 m/s 051 52 53 54 25 50 75 100 11 12 Façade area 15011 12 13 14 15 16 9021 22 80 31 32 70 6041 42 50 51 52 40 3061 62 20 71 72 10 2900 m/s 2800 m/s 2700 m/s 2600 m/s 2500 m/s 2400 m/s 2300 m/s 2200 m/s 2100 m/s 2000 m/s 1900 m/s 1800 m/s 1700 m/s 1600 m/s 1500 m/s 1400 m/s 1300 m/s 1200 m/s 1100 m/s 1000 m/s 900 m/s 800 m/s 135 120 21 22 23 24 25 26 105 90 31 32 33 34 35 36 75 60 41 42 43 44 45 46 45 30 51 52 53 54 55 56 15 0 61 62 63 64 65 66 0 30 60 90 120 150 15 45 75 105 135 2400 m/s 2300 m/s 2200 m/s 2100 m/s 2000 m/s 1900 m/s 1800 m/s 1700 m/s 1600 m/s 1500 m/s 1400 m/s 1300 m/s 1200 m/s 1100 m/s 1000 m/s 900 m/s 81 82 0 10 20 POSSIBLE SOLUTIONS BEFORE AND IMMEDIATELY AFTER EARTHQUAKE
POSSIBLE SOLUTIONS BEFORE AND IMMEDIATELY AFTER EARTHQUAKE PROF. CLAUDIO MODENA Sonic tests Data emerged from the application of the method to wide portions of the complex denoted globally fair velocity results, indicating possible fair mechanical characteristics. In terms of minimum values encountered, seldom the velocity was lower than 800 m/s. No odd velocity values were found, denoting absence of macroscopic inconsistencies within the tested masonry portions investigated. Several masonry walls tested denoted a general velocity uniformity, indicating a possible uniformity also in terms of mechanical characteristics, resulting in a positive homogeneous stress pattern. Sonic investigations results proposed the impression that the successive implementation of the kinematic mechanisms approach analyses, considering the selected masonry portions (macroelements) as rigid bodies, is possible, since the tested masonry portions did not denounce severe structural deficiencies, possible cause of sudden collapse (e.g. masonry crumbling) before the beginning of the considered mechanisms. Sharp variation from the 1st two lower lines (average on 4 points equal to 2692 m/s) respect the upper ones (average on 12 points equal to 1444 m/s) POSSIBLE SOLUTIONS BEFORE AND IMMEDIATELY AFTER EARTHQUAKE
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ENGINEER’S SEMINAR: HISTORIC BUIL
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Velocità sonica (m/s) Velocità so
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Variazione di lunghezza [m] POSSIBL
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Variazione di lunghezza [m] POSSIBL
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