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https://doi.org/https://doi.org/10.1016/j.jfluidstructs.2017.10.011

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µ =mf

ms= 0.04

9ROXPH

V =mf

*= 4.208 · 108 mm3

$UHD

A =V

L= 3.621 · 105 mm2

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:LGWK RI ZDWHU

b = 990mm

:DWHU GHSWK

h =A

b= 365.755mm


fw =1

20

,n0g

LWDQK

(n0h

L

)= 0.713Hz

(IIHFWLYH PDVV

mHII =8L WDQK(0h/L)

03hmf = 260.573 kg

(IIHFWLYH VWLIIQHVV

kHII =8 * b L2

03WDQK

(n0h

L

)(20fn)

2 = 5229.214N

m


%opt =

+1 + µ/2

1 + µ· 100 = 97.126�


"opt =

,µ(1 + 3µ/4)

4(1 + µ)(1 + µ/2)· 100 = 9.827�


"HII�RSW =1

4

,µ(1 + µ)

(1 + 3µ/4)· 100 = 5.01�

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$�� 'DPSLQJ UDWLR

6WHHO VWUXFWXUH "s = 0.004

GDPSLQJ UDWLR

6WUXFWXUH¶V DFFHOHUDWLRQ as = 1.7m

s2ZLWKRXW 7/'

6WUXFWXUH¶V DFFHOHUDWLRQ a1 = 0.098m

s2ZLWK 7/' � 0.7�


s2ZLWK 7/' � 1.0�


s2ZLWK 7/' � 1.5�


s2ZLWK 7/' � 2.0�


s2ZLWK 7/' � 3.0�


s2ZLWK 7/' � 4.0�

'DPSLQJ UDWLR 7/' � 0.7� "7/'� =asa1

"s · 100 = 6.939�

'DPSLQJ UDWLR 7/' � 1.0� "7/'� =asa2

"s · 100 = 8.500�

'DPSLQJ UDWLR 7/' � 1.5� "7/'� =asa3

"s · 100 = 10.462�

'DPSLQJ UDWLR 7/' � 2.0� "7/'� =asa4

"s · 100 = 12.143�

'DPSLQJ UDWLR 7/' � 3.0� "7/'� =asa5

"s · 100 = 15.455�

'DPSLQJ UDWLR 7/' � 4.0� "7/'� =asa6

"s · 100 = 18.889�

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0DVV UDWLR ��

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RESPONSE OF FOOTBRIDGES EQUIPPED WITH TLD

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