With the rise of prefabricated buildings,prefabricated balcony as an important part of prefabrica-ted buildings,the safety performance during its lifting process has received extensive attention.For the Zhangjia-kou Bashang area in windy weather all year round,the influence of wind load on the lifting of PC closed balcony is studied,and the wind pressure of PC closed balcony model under 9 different wind attack angles and 7 different wind angles are compared;after that,the wind pressure at 0°,30°and 60°wind angles and-6°,3°and 12° wind attack angles are converted into uniformly distributed surface load.Finite element software is used to com-pare and analyze the stability of the PC enclosed balcony under two lifting methods when the wind direction angle of the windward surface changed;finally,considering the influence of average wind and pulsating wind,the sta-bility of the balcony under different wind conditions is compared and analyzed.It is concluded that pulsating wind and wind direction angle have an undeniable impact on the stability of the PC enclosed balcony during lift-ing.It is recommended to prioritize lifting method 1 when lifting the balcony,and real-time wind speed and di-rection at the construction site should be considered.
关键词
PC封闭式阳台/风攻角/风向角/均布面荷载/脉动风
Key words
PC enclosed balcony/wind attack angle/wind direction angle/uniform-distributed plane load/fluctuating wind
维普
万方数据