CAJ | 학술논문

为了研究海上高架平台在风荷载作用下的受力特性,利用《港口工程荷载规范》和风荷载通用计算公式,对比分析了某海上高架平台在风荷载作用下的阻力、升力和力矩,以及平台不发生倾覆时所需的锚链力。结果表明,平台所受风阻力、力矩均随风速的增大而非线性增大；风速较低时,2种方法的结果十分吻合,风速较高时,需将规范和风荷载通用公式中的升力计算公式相结合才能使计算结果偏于安全；同时,平台不发生倾覆所需的最小锚链力随投锚距离的增大先急剧减小后缓慢增加。
위료연구해상고가평태재풍하재작용하적수력특성,이용《항구공정하재규범》화풍하재통용계산공식,대비분석료모해상고가평태재풍하재작용하적조력、승력화력구,이급평태불발생경복시소수적묘련력。결과표명,평태소수풍조력、력구균수풍속적증대이비선성증대；풍속교저시,2충방법적결과십분문합,풍속교고시,수장규범화풍하재통용공식중적승력계산공식상결합재능사계산결과편우안전；동시,평태불발생경복소수적최소묘련력수투묘거리적증대선급극감소후완만증가。
To study the mechanical characteristics of a marine elevated platform under wind loads,the"Code for Loads of Port Engineering" (JTS 144-1—2010)and the general calculation formula were em-ployed to calculate the wind loads,including drag force,lift force,torque and mooring threshold force for the platform not to be overturned,respectively.The results show that drag force and torque increase non-linearly with wind speed increase.The results of the two methods are coincident with each other when the wind speed is low.And the"Code for Loads of Port Engineering" (JTS 144-1—2010)should be combined with the general calculation formula to evaluate the wind loads acting on the platform when the wind speed is high.The results of this method is more secure.Meanwhile,mooring threshold force,provided by the platform to prevent the overturn of itself,decreases sharply before slowly increasing with the increase of anchoring distance.