Data for \"CAIT-UTC-REG28: Cost-effective Bridge Decks for Improved Durability and Extended Service Life\"

This project involves the experimental testing of a unique bridge deck specimen with a corrugated core that is bonded to the deck plate using structural adhesive. The specimen was supported and loaded using specially designed fixtures. Comprehensive instrumentation was implemented, including uniaxial, biaxial, and rosette strain gauges, as well as displacement transducers. The testing program comprised initial static tests, fatigue tests, and intermittent static tests conducted over a 5 million-cycle fatigue period. Analysis of the static test results revealed the degradation of the adhesive connection between the core and the deck plate due to fatigue loading, leading to changes in transverse load distribution and decreased deck stiffness. However, the structural integrity of the deck remained intact. This study shows the potential cost-effectiveness of using structural adhesive for constructing steel sandwich plate decks.本项目针对一款采用结构胶粘剂（structural adhesive）将波纹芯体（corrugated core）与桥面板粘接而成的独特桥面板试件开展试验测试。试验采用专用夹具对试件进行支承与加载，并布设了全面的监测仪器，涵盖单轴、双轴及应变花应变片（rosette strain gauges）与位移传感器（displacement transducers）。本次试验流程涵盖初始静力试验、疲劳试验，以及在500万次疲劳循环周期内开展的间歇静力试验。对静力试验结果的分析表明，疲劳荷载作用下芯体与桥面板间的粘接连接发生劣化，导致横向荷载分布发生改变，桥面板刚度有所降低，但桥面板整体结构完整性仍得以保持。本研究证实了采用结构胶粘剂制备钢夹层板（steel sandwich plate）桥面板所具备的潜在经济性优势。