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对Barqueta桥进行了理论和试验工作。Barqueta大桥横跨Guadalquivir河,连接Seville城市和Cartuja93科技园,高峰时期,车流占据一条半的车道达一个多小时。通过原型试验对桥的动力响应进行观测。试验程序包括两种活荷载条件下的动力研究:一种是一条半车道布满车辆,另一种是桥上没有车辆。基于获取的数据,进行了模型的参数估计。通过不同的技术手段确定了频率范围从0～6Hz的10个模型,其中两个模型非常相似。对交通与结构之间的交互作用也进行了研究。从三维有限元模型中得到的结果与试验结果进行了比较,结果具有很高的一致性。最后,损伤评价技术被用于鉴定结构的完整性。从2005年7月的试验中获得的结果与2006年10月用损伤指标方法获得的结果具有相关性。
Barqueta bridge theoretical and experimental work. The Barqueta Bridge, which stretches across the Guadalquivir River, connects Seville city with the Cartuja93 Technology Park. During rush hour traffic flows take a half-lane over an hour. The dynamic response of the bridge was observed by prototype test. The test procedure included two dynamic studies of live loads: one with a half-lane full of vehicles and the other with no vehicles on the bridge. Based on the data obtained, the model parameters were estimated. Ten different models with frequencies ranging from 0 to 6 Hz were identified by different techniques, of which the two models are very similar. The interaction between traffic and structure has also been studied. The results obtained from the three-dimensional finite element model are compared with the experimental results and the results are highly consistent. Finally, damage assessment techniques are used to identify the structural integrity. The results obtained from the July 2005 trial were correlated with the results obtained in October 2006 using the injury index method.