本文關(guān)鍵詞：分離雙扁平箱梁氣動(dòng)力干擾效應(yīng)研究　出處：《工程力學(xué)》2017年S1期 　論文類型：期刊論文

  更多相關(guān)文章： 分離雙扁平箱梁 風(fēng)洞試驗(yàn) 氣動(dòng)力系數(shù) 干擾效應(yīng) 間距

【摘要】：通過節(jié)段模型風(fēng)洞試驗(yàn)研究了分離雙扁平箱梁氣動(dòng)力的干擾效應(yīng),得到了氣動(dòng)力系數(shù)干擾因子隨間距的變化曲線。研究結(jié)果表明:上游箱梁阻力系數(shù)的干擾效應(yīng)不明顯,下游箱梁阻力系數(shù)的干擾效應(yīng)在D/B≥2(D/B為雙箱梁的凈間距與單幅箱梁寬之比)時(shí)基本可以忽略,在D/B2時(shí)為減小效應(yīng),間距越小,減小效應(yīng)越顯著;下游箱梁升力系數(shù)的干擾效應(yīng)不明顯,上游箱梁升力系數(shù)的干擾效應(yīng)在D/B≥2時(shí)基本可以忽略,在D/B2時(shí)為減小效應(yīng)。
[Abstract]:The aerodynamic interference effect of separated double flat box girder is studied by wind tunnel test with segmental model. The variation curve of aerodynamic coefficient disturbance factor with distance is obtained. The results show that the interference effect of upstream box girder resistance coefficient is not obvious. The interference effect of the downstream box girder resistance coefficient can be neglected when D / B 鈮，

本文編號(hào)：1405069