Research Article

Estimation of Modal Properties of Low-Rise Buildings Using Ambient Excitation Measurements

Table 1

Details of properties.

Earthquake
number
Duration
(s)
Number of
segments
Duration of
RD signature (s)
Damping
ratio (%)
Period
(s)
Error in period estimation (%)Error in damping estimation (%)

1531265,04,8440,4802,1−3,1
2531223,05,2330,457−2,84,7
327845,03,9800,4720,4−20,4
4271043,04,9440,4853,2−1,1
522813,04,6480,468−0,4−7,0
6321027,04,5980,428−4,6−8,0
742743,04,7760,4730,7−4,5
8341443,04,4694,9505,3−10,6
9381421,54,3960,4853,2−12,1
1026823,54,4360,5026,7−11,3
1130762,04,5870,4853,2−8,3
12421005,04,1970,4904,3−16,1
13371342,55,2770,465−1,15,5
1438782,04,5290,463−1,4−9,4
15491543,04,1170,4720,4−17,7
16481823,04,3120,4730,7−13,8
17561503,05,5200,4720,410,4
18882922,04,5140,4730,7−9,7
19882562,04,3550,447−5,0−12,9
20652344,04,1400,458−2,5−17,2
21682362,04,8970,4822,5−2,1
22682143,04,9900,458−2,5−0,2
23732285,05,5980,4751,112,0
24732142,04,8050,465−1,1−3,9
2523762,04,6500,4986,0−7,0
2622743,05,1320,452−3,92,6
271033063,04,4330,4832,8−11,3
281113342,56,3000,458−2,526,0
291113562,05,0030,447−5,00,1
30982582,54,9590,458−2,5−0,8
31671883,05,9330,460−2,118,7
32671863,04,3360,4751,1−13,3
33591782,54,7320,4853,2−5,4
341022923,04,4330,4781,8−11,4
35461324,04,1600,4720,4−16,8
3633843,55,4600,4853,29,2
37431164,04,8540,458−2,5−2,9
38471362,04,8070,5056,4−3,9
39702462,55,6900,4853,213,8
40471603,55,4230,4740,98,5
41672462,54,4240,465−1,1−11,5
42672263,05,3380,465−1,16,8
43401004,04,6390,463−1,4−7,2
44391205,04,2320,4822,5−15,4
45481302,05,6270,437−5,012,5
46672002,54,7470,458−2,5−5,1