1、 l : 2000- 03- 10 “ :S E 1 S “ ( 59878037)T e :f ( 1966- ) , 3 , 2 Y , q , p V .v B r B S Q S “ d ! 9张启伟( 6 v B “ , Z null 200092)K 1 : v B r B S p 8 L H S e ? , H , v t B !9 # 5 9 B r B S = d . N n 5 e 1 9 10 M B r B S , “ d B r B S Q ,i V B ? Z ) v B S “ d ! 9 1 5 , S “ d 7 ? 4 k .1 o M : r B S ;
2、S “ d ;S “ ; B m s | : U 446null null null null D S M : Anull null null null c I | : 0253- 374X( 2001) 01- 0065- 05Conceptionof LongnullspanBridgeHealthMonitoringandMonitoringSystemDesignZHANG Qinullwei( Department of Bridge Engineering, Tongji University, Shanghai 200092, China)Abstract: A prim ary
3、 objective of long- span bridge health monitoring is to obtain the information on bridgecondition through online monitoring of the structural performance. Also, health monitoring helps to verify thedesign approaches and to validate the analytical models of bridge structures. In addition, the unknow
4、n issuesand the uncertainties involved in the structural m echanics and the environmental condition of a longnullspanbridge may be studied through health monitoring. In this paper, after a brief overview of the development ofbridge health monitoring, the connotation of bridge health monitoring is po
5、inted out in an extended sense. Renulllated issues on the design of monitoring system, including the principles of system design and the monitoringitems for longnullspan bridges are discussed.Key words: health monitoring; monitoring system ; system design; longnullspan bridgesnull null 20 W B 5 8 C
6、/ ? Z v t B y / # vt B ,7 O Q B L ? e ? S ! X m . 20 M B F a F 5 T # 7 ? w v t B ? Z ; H , “ v 1B a 0 P ? v 1 , B r B S S “ d 7 ? 7 3 1 . B S V s a9 L ! 9 Z E 4 Q ,i V v t B # 5 ,y N B ! 9 # B 5 B r B S = d . 10 M B r B S # v t B ? Z , “ d B r B S = d , i N ) S “ d ! 9 1 5 . 29 1 2001 M 1 null 6 nul
7、l v null null null JOURNAL OF T ONGJI UN IVERSIT YVol. 29 No. 1null Jan. 20011null B r B S “ d ? Z e 1.1null S “ d80 M 7 S ? B r B S “ d y . , S 9 522 m t M Q B Foyle B ! . ,S v B T / a 6 M Y , H S . “ d K * S “ d B , L C L H S a LH s Z . y r B S “ d B s Skarnsundet | B ( t 530 m ) 2a S t 440 m Suns
8、hine Skyw ay Bridge| B a t 1 624 m Great Belt East B 3a S t 194 m Flintshire | B 4 # F H , k m Y V B / Y y null , i N 7 ? L H 8 / .( 3) Y W S , p | v B 7 . t B S . B 7 S T i S e .( 4) S “ d y v “ aY ) ? ,i L C Z . t + P v t B r B S u Y . d B _ V , 6 1 , B r B S X K B t 1 ! T 9 X , S S ( | e 4 ) .1.2
9、null 10 M , B r B S 1 “ 8 M Y . 8 / t ? a 5 , / $ r ! “ _ / K 1 8 Z E i W 1, 7 10 . 8 Z E 6 B y V B V E , y N B Z E L H S . . 8 Z E V B T M Y E a“ d M Y E # * Z E v 1 . $ T + , 9 “ d M Y Z E * E 1 , 6 , M a M w q # Y Z E 9 A U 1 _ ? 9 . 7 , 5 t 8 / X B t e 0 , ? V L .E B / L y 1 : ! d y Y ; ! ; # |
10、. 2 ; B v i O | .6 ,V Z E , “ - v t B ? l B ) Z E , B 1 4 P ? aY 0 N .2null B r B S Q2.1null S e B r B S = d Y V B S e , v B + y a Y H q / B s H ( ? | , B a 5 % 4 G . N ,S “ d / + Z S e : ! B Y H q / ; B 1 d 66null null null null 6 null v null null null 29 null q ( V ) ! ( e q ) T ; # q 0 ; v B ) H
11、q . . d _ / ,v B r B S 1 p k y v “ Y ? ,7 O p 8 L H S e ? .2.2null ! 9 v B ( | B a B ) + # ) + , v B ! 9 g + d 4 .v t B ! 9 G s i Y V a E k B ? i . 7 , s X K ,i O s H L H q - 4 . k H v B E 9 V ? L B M ,y N , Y V B r B S L = v B a9 L 1 i l . Y L ,S B t 1 B y r B S “ d H S ! 9 .B r B S Q ! 9 i l , ! 9
12、 Z E M ? S S V ? , B Y H q 1 / L # y | L CB null E ! 9 $ .2.3null ? ZB r B S | S “ d + B ! 9 Q , V ? i B m 1null v B r B S i lFig. 1null Connotation of longnullspan bridgehealth monitoring nullC L i . 5 B F a F 5 T # C w “ B ? Z , , v t B ! 9 i L , v t B ! 9 9 5 1 , H , B e r B / 7 ? 9 1 C k . B r B
13、 S B 5 v t B 4 , B # L i , 7 O V 4 1 ? p K L . 6 , B e r B / 7 ? 9 1 C k .8 , v B r B S . d B _ F / , 7 $ S e a ! 9 ? Z Z i l (n m 1) .3null r B S “ d ! 93.1null S “ d ! 9 5V V 1 V v B r B S “ d f V A , S “ d S “ ? i v s . s “ B y , 1 y “ d ? 1 p M ,i O y “ d g - 9 B “ .y N ,S “ d ! 9 A N ? 1 p r m
14、null s v 5 .S “ d ! 9 n 5 I n y “ d “ ? , B r B S Z i l 9 B r B S “ ? . + B , y r B S “ d “ V B S e , ! 9 , . ? Z “ . B y “ d “ ,“ d S “ V , 6 , S “ d S “ ? # . N Y ! ! 1 I n g K .y N ! 9 S “ d H A S “ d Z nullr m s . ? 1 p nullr m s V | S “ ! 9 S , V K 4 i “ d q ! .67null 1 f :v B r B S Q S “ d ! 9
15、 null nullV 1null V v B r B S “ d Tab. 1null Comparison of monitoring systems for two suspension bridgesB null null P v B 6( B , t 1 337 m) | v B( B , t 1 385 m ) / 115 % M / 2 14 M / 110 64 N / 6 %F / 17 8 (S ) / 6 % / % 11 / % 12“ d ! 9 L “ d M z / MP 1997 S S ES 19993.2null S “ ? “ S 1 p S “ M .
16、v v t B S “ d S “ V S e ? , Y 9 Y $ ! 9 . s S “ B 5 “ 5 . D 11Y V S = V | B v h _ s , 4 | B S e V S “ . T S “ d I n ! 9 ? , * 1 “ d M Y 1 , y N , v t B , 1 . B aF # / , W % i ! 9 H s Y , 6 , V a v # t ! . | Q . a .“ - , t S “ d 7 ? 8 / “ B . B 5 S “ d n , t “ d 9 S “ , M 1 S “ V 5 . V “ - B ? Z A ,
17、/ + Z 5 V B r B S :F Z : + 4 a 1 # F .F Z : b W H W M ar null M T a o r a Y Y . Y V M aM # F S y B F s 1 i l . 8 Z : a / d L + , B ) H q M + a ( = s aM ) Y . ? Z S 8 Z E d 1 . 5 : H a H q , o # 5 , ( g o ) , . B ( ) h a 9 B 4 .0 5 : B 0 5 5 1 . ( ) K a K 5 j . $ :v 9 B t ! 9 5 , * 5 9 Z E . v B S “
18、d v M ? p a 5 ,9 ! 9 1 .4null B r B S . d B _ / e ,7 O C . Y / , L H S B H q / Y , | Q y , N s r B a V L , B 5 % 4 S G . H ,v B r B S ! 9 Z E a 7 ? L C e / # v B 5 1 i l .y N ,r B S B ? Z 7 B b W .v B r B S a ! 9 ? Z Z i l Q V Y B 5 a! 9 & 5 1 5 .S “ d ! 9 ? 1 p r m null s 5 ,N ,S “ d ! 9 Y V s ,i O
19、 I n “ d L Y 5 .68null null null null 6 null v null null null 29 null I D : 1 null Housner G W , Bergman L A, Caughey T K, et al. Structural control: Past, present, and future J . Journal of Engineering Mechanics, 1997,123( 9) : 897- 971. 2 null Myroll F, Dibiagio E. Instrumentation for monitoring t
20、he Skarnsunder Cablenullstayed Bridge A . Krokeborg J Proceedings of the 3rd S ym ponullsium on Strait Crossing C . Rotterdam: Balkema, 1994. 207- 215. 3 null Andersen E Y. Structural monitoring of the Great Belt East Bridge A . Krokeborg J Proceedings of the 3rd Symposium on Strait Crossing C . Rot
21、terdam: Balkema, 1994. 54- 62. 4 null Curran P, T illy G.Design and monitoring of the Flintshire Bridge, UK J . Structural Engin eering International, 1999, 3: 225- 228. 5 null Chueng M S, Tadros G S, Brow n T G, et al. Field monitoring and research on performance of the Confederation Bridge J . Can
22、adian Journalof Civil Engineering, 1997, 24( 6) : 951- 962. 6 null Lau C K, Mak W P N, W ong K Y, et al. Structural health monitoring of three cable- supported bridges in Hong Kong A . Chang F K.Structural Health Monitoring 2000 C . Pennsylvania:T echnomic Publishing Co, 1999. 450- 460. 7 null f , ,S $ .v
