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中文摘要：
双幅桥面桥梁在风的作用下，上下游两桥面之间会产生气动干扰效应。分别采用测力法和测压法对某双幅桥面桥梁三分力系数的气动干扰效应进行了一系列的节段模型风洞试验研究。结果表明：双幅桥面阻力系数的气动干扰效应不容忽视。与单幅桥面相比，下游桥面的阻力系数降低较多，上游桥面的阻力系数略有降低。上下游桥面升力系数和升力矩系数的气动干扰效应不明显。
英文摘要：
There exist aerodynamic interference effects between the windward deck and the leeward deck of twin-deck bridges under wind load. Aerodynamic interference effects on aerodynamic coefficients of a twin-deck bridge were investigated with a series of section-model wind tunnel tests using both force-measurement method and pressure-measurement method. The results show that the aerodynamic interference effects on drag coefficients of twin-deck bridges could not be neglected. Compared with single deck alone, the drag coefficients of leeward deck are much smaller and those of windward deck decrease slightly. The aerodynamic interference effects on the lift and torque Coefficients of twin-deck bridge could be ignored.
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