Reliability Analysis Of High-rise Reinforced Concrete Frame Structure Under Wind Load

Wind calamity is one of the largest disasters in nature. It is appropriate and effective to use method of reliability to study on the resisting wind loading property of tall building, because there are more random attributes with wind loads. Our country is one of the minorities which are affected badly by typhoon. Till now, we have not obtained enough statistical data of typhoon loading exactly and the occurring frequency of typhoon is low relatively, so typhoon loading has not been included in the active structural design codes. However, we must attach importance to typhoon loading for its strongly destroyed force. Base on reliability theory and the domestic and international previous research works of the same field, the analysis of tall buildings under wind loading is further studied in this thesis. The major contents are summarized as follows:1. In ANSYS parameter design language, program of reliability for resisting wind loading by Monte-Carlo stochastic finite method based on Latin Hypercube Sample method is obtained, which is applied in frame analysis of reliability for resisting wind loading.2. It is indicated by the example that failure probability is obtained rightly with relatively low cycle index by Latin Hypercube Sample method, so it is an effective and reasonable method in analysis of reliability for resisting wind loading.3. By Monte-Carlo stochastic finite method based on Latin Hypercube Sample method, reliability for the design proposal of reinforce concrete high-rise frame under wind load is analyzed from limit of bearing capacity and limit of regular service. Based on the results, the design scheme is satisfied with the code under the reference period maximum wind loads but the reliability level of resisting typhoon loading is low.4. The construction is redesigned based on the performance of resisting typhoon loading. It is indicated that the cost is improved greatly with the increase of the reliability under typhoon loading. At a result, it is advised that proper measures in designs of high buildings should be made to increase the reliability level of resisting typhoon loading in coastal areas, at the same time, many other reasons should be considered such as the influence of the two sorts wind loads, the national economic and technology level, to make an feasiable and reasonable choice.