A plunging stock market in china along with falling markets in japan and europe were the initial forces behind the fall , but the drop gain momentum by a number of other converging factors 伴隨中國股市的狂跌,日本、歐洲股市迅速下跌,這是導(dǎo)致道瓊斯指數(shù)狂跌的觸發(fā)因素,但其背后尚有諸多綜合因素。
By the pseudo - dynamic test and modal analysis of the frame - bent structure , the paper discussed the seismic behavior , calculation method of initial force , simplified design method and structural features of this type of structure 綜上所述,通過對該類框排架結(jié)構(gòu)的試驗及理論分析,研究了該體系的抗震性能提出了針對該體系計算方法、設(shè)計方法及相應(yīng)的構(gòu)造措施。
Some helpful conclusions were made . based on the experimental results and theories research , the author put forward some valuable conclusions of this new type of frame - bent structures : ( 1 ) the initial force calculation method considering the lateral torsional coupled ; ( 2 ) the design and construction method of the high - strength concrete frame - bent columns under the high axial compression ratio ; ( 3 ) the construction method of the abnormal joints 在試驗和理論研究的基礎(chǔ)上,提出框排架結(jié)構(gòu)的設(shè)計原則和具體的設(shè)計方法,主要有以下內(nèi)容: ( 1 )考慮平扭耦聯(lián)空間整體結(jié)構(gòu)的振型分解法; ( 2 )針對該類主廠房結(jié)構(gòu)中應(yīng)用高強(qiáng)混凝土的問題,提出應(yīng)用高強(qiáng)混凝土的框排架柱的軸壓比限值及相應(yīng)的構(gòu)造要求; ( 3 )對異型節(jié)西安建筑科技大學(xué)博士學(xué)位論文點劃分不同區(qū)域分別給出其構(gòu)造要求。