摘要
通过对合安高速公路柏年河大桥 I型梁进行破坏性加载试验 ,采用电子应变仪测取梁的应变、高精度水准仪观测梁下缘的挠度 ,掌握了这种新型结构的单梁承载能力。同时对试验梁作了振动信号的采集 ,通过这些动载检测资料 ,分析出构件在外力作用下逐渐损伤过程中 ,结构动力响应的有关参数变化 。
In order to grasp the loading capacity of the I shape beam of Bainianhe Bridge in Hefei Anqing Freeway,the destructive loading test was made on the beam, with the strain measured by using electronic strainometer, and the flexivity on the bottom flange of the beam measured by using the leveling instrument of high precision. At the same time, the vibration signal of the test beam was also collected. With the data from dynamic test, the change in parameters pertinent to dynamic response of the structure was analyzed which was destroyed little by little under the load. The work in the paper may be helpful in determining the structure destruction through non destructive detecting.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2001年第3期345-349,共5页
Journal of Hefei University of Technology：Natural Science
