本文選題：風(fēng)振響應(yīng) + 位移響應(yīng)譜　； 參考：《土木工程學(xué)報(bào)》2015年S1期

【摘要】：根據(jù)超高層建筑橫風(fēng)向風(fēng)振響應(yīng)的特點(diǎn),提出了超高層建筑橫風(fēng)向風(fēng)振計(jì)算的響應(yīng)譜法,相對(duì)于傳統(tǒng)計(jì)算方法,響應(yīng)譜法具有以下特點(diǎn):(1)響應(yīng)譜法基于橫風(fēng)向風(fēng)荷載沿建筑高度分布的特征及隨機(jī)振動(dòng)理論分析計(jì)算結(jié)構(gòu)響應(yīng),該方法直接對(duì)分析結(jié)果進(jìn)行數(shù)據(jù)擬合,相比于傳統(tǒng)方法只擬合建筑風(fēng)荷載基底合力均方值及功率譜密度函數(shù)的特點(diǎn),該方法減少了計(jì)算中間過程,減小了計(jì)算誤差。(2)采用響應(yīng)譜方法計(jì)算結(jié)構(gòu)響應(yīng)時(shí),可以考慮多階振型的貢獻(xiàn)。(3)響應(yīng)因子本質(zhì)上是反映結(jié)構(gòu)振動(dòng)對(duì)準(zhǔn)靜態(tài)風(fēng)荷載放大作用的響應(yīng)譜,在應(yīng)用上與地震作用計(jì)算方法類似,便于工程人員理解和應(yīng)用。由于公式簡(jiǎn)單、易于理解,響應(yīng)譜法具有較好的操作性,可為超高層建筑橫風(fēng)向抗風(fēng)設(shè)計(jì)提供參考。
[Abstract]:According to the characteristics of wind vibration response in cross wind direction of super high-rise building, the response spectrum method for wind vibration calculation in cross wind direction of super high-rise building is proposed, which is compared with the traditional calculation method. The response spectrum method is based on the characteristics of the wind load distribution along the height of the building and the random vibration theory to analyze and calculate the structural response. Compared with the traditional method, which only fits the mean square value of the base force and the power spectral density function of the wind load, the method reduces the intermediate process of calculation and reduces the calculation error. 2) when the response spectrum method is used to calculate the structural response, It can be considered that the response factor of multi-order vibration mode is essentially a response spectrum reflecting the effect of structural vibration on static wind load amplification, which is similar to the calculation method of seismic action in application, and is easy for engineers to understand and apply. Because the formula is simple and easy to understand, the response spectrum method has good maneuverability and can be used as a reference for the cross-wind resistance design of super high-rise buildings.
【作者單位】： 中國(guó)建筑科學(xué)研究院;
【基金】：國(guó)家“十二五”科技支撐計(jì)劃項(xiàng)目資助(2012BAJ07B01)
【分類號(hào)】：TU973.213

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 嚴(yán)亞林;金新陽(yáng);唐意;武林;;高層矩形建筑橫風(fēng)向風(fēng)力特性試驗(yàn)研究[J];建筑結(jié)構(gòu);2011年11期

2 鄒W，

本文編號(hào)：1941828