PDF(1058 KB)
Comparative Analysis of Wind Load Technical Standard on Power Transmission Tower Between China and Foreign Countries
QU Songzhao
Electric Power Construction ›› 2013, Vol. 34 ›› Issue (5) : 22-29.
PDF(1058 KB)
PDF(1058 KB)
Comparative Analysis of Wind Load Technical Standard on Power Transmission Tower Between China and Foreign Countries
With the increase of overseas design project, it is necessary for designers to comprehend and master the similarities and differences between domestic and foreign standards. The transmission line standard in China is compared with ASCE standard in U.S., JEC standard in Japan, EN standard in EU, and international standard IEC, the calculated values of relative parameters including height variation coefficient of wind pressure, shape coefficient of wind load, adjustment coefficient of wind load (wind vibration coefficient), et al are emphatically analyzed. The results show that domestic and foreign standards are different in some calculation methods, such as basic wind speed, height variation coefficient of wind pressure, shape coefficient of wind load, adjustment coefficient of wind load (wind vibration coefficient), and yawed wind load, which can provide references for the designers in power transmission projects.
power transmission tower / wind load / value selecting standards / comparison
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