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Table 4 Summary of the capacity of the remaining structure considering the change of beam size in the isolation layer

From: Study on mechanism and influential factors of progressive collapse resistance of base-isolated structure

Working model

Beam mechanism peak (kN)

Beam mechanism displacement (mm)

Catenary peak (kN)

Catenary displacement (mm)

Bearing displacement

Umin

Umax

B1

163.6

20

109.3

142

−22

22

B2

99.7

23

-

-

-

5

B3

157.7

18

112.4

150

−23

21

B4

137.8

18

106.3

147

−20

20

B5

87.9

18

-.

-

-

4

B6

137.1

18

110.4

156

−22

20

B7

136.4

20

109.3

148

−20

20

B8

79.8

17

-

-

-

4

B9

136.1

18

110.2

156

−22

21