CAJ | 학술논문

基于台风"达维"登陆时广州中信广场风场及结构响应的现场实测数据,对于风场特性和结构加速度响应状况进行了计算分析,计算分析结果表明,城市上空强风"达维"的湍流度比较大,在台风"达维"作用下结构的横风向响应与顺风向响应接近;同时在不同的时距条件下对风场特性与结构加速度响应的相关性进行了分析,由分析可知取3min为基本时距时风速与结构响应的相关性系数值较高,说明在确定结构的风荷载和计算结构风致响应时取基本时距为3min更为合理.
기우태풍"체유"등륙시엄주중신엄장풍장급결구향응적현장실측수거,대우풍장특성화결구가속도향응상황진행료계산분석,계산분석결과표명,성시상공강풍"체유"적단류도비교대,재태풍"체유"작용하결구적횡풍향향응여순풍향향응접근;동시재불동적시거조건하대풍장특성여결구가속도향응적상관성진행료분석,유분석가지취3min위기본시거시풍속여결구향응적상관성계수치교고,설명재학정결구적풍하재화계산결구풍치향응시취기본시거위3min경위합리.
This paper presented the analysis results based on the field measurement data of wind velocity and acceleration of main tower in CITIC Plaza during Typhoon Damrey.The results revealed that turbulence intensity of Typhoon Damrey was larger than the normal,and the across-wind dynamic response of CITIC Plaza approached the along-wind dynamic response under Typhoon Damrey.Meanwhile,the correlation of wind characteristic and wind-induced structure vibrations was investigated in selected different time intervals.The research indicated that 3-minute mean wind speed was reasonable in calculating the wind load and the wind-induced response.