2Cantieni R, Deger Y, Pietrzko S. Large structure investigation with dynamic methods: The bridge on the river am'eat aaburg [ C] ,// Prestressed Concrete in Switzerland. Report of the Swiss FIP Group to the 12th FIP Congress, Washington, D. C : 1994, 29 (2) :20.
3Law S S, Ko J M. Ambient vibration measurement of the tsing ma bridge towers [ C] ///Bridges into the 21 st century conference pro- ceedings,Hong Kong:1995,10(2) : 585 -592.
二级参考文献3
1Cantieni R, Deger Y, and Pietrzko S. Large Structure Investigation with Dynamic Methods: The Bridge on the River Aare at Aaburg, Prestressed Concrete in Switzerland. Report of the Swiss FIP Group to the 12th FIP Congress, Washington, D.C, 1994. 2. 29:20～26
2Law S S and Ko J M. Ambient Vibration Measurement of the Tsing ma Bridge Towers. Bridges into the 21st Century Conference Proceedings, Hong Kong, 1995. 10. 2:585～592
3Ewins D J. Modal Testing: Theory and Practice. Taunton,Somerset, England: research studies press 1995
