- 摘 要
-
(同濟(jì)大學(xué)建筑設(shè)計研究院 (集團(tuán)) 有限公司, 上海 200092)
摘要: 在加固工程中采用消能減震結(jié)構(gòu)降度設(shè)計,降低主體結(jié)構(gòu)抗震等級從而降低主體結(jié)構(gòu)的抗震構(gòu)造措施的方法高效且經(jīng)濟(jì). 對比了五個相關(guān)標(biāo)準(zhǔn)中關(guān)于采用消能減震結(jié)構(gòu)的降度設(shè)計條件,提出了采用消能減震結(jié)構(gòu)進(jìn)行降度設(shè)計的應(yīng)用建議:多層結(jié)構(gòu)時,主體結(jié)構(gòu)在反應(yīng)譜下底部剪力降低程度超過 50%;高層結(jié)構(gòu)時,主體結(jié)構(gòu)底部或控制樓層(相對薄弱的樓層)在反應(yīng)譜下承擔(dān)層間剪力降低程度超過 50%;消能減震結(jié)構(gòu)在反應(yīng)譜下的最大層間位移降低程度超過 50%. 以上海某中學(xué)加固工程為例,對采用消能減震結(jié)構(gòu)的加固方案進(jìn)行了深入分析,結(jié)合各項計算結(jié)果及相關(guān)規(guī)范、規(guī)程的要求,表明結(jié)構(gòu)減震效果明顯,主體結(jié)構(gòu)抗震構(gòu)造措施可以按降低 1 度執(zhí)行.
關(guān)鍵詞: 消能減震; 降度設(shè)計; 抗震加固; 規(guī)范對比; 抗震構(gòu)造措施
中圖分類號:TU398. 7 文獻(xiàn)標(biāo)志碼:A 文章編號:1002?848X(2022)08?0074?06
DOI:10. 19701 / j.jzjg.20211602
Discussion on the degree reduction design method of energy dissipation building
MAO Hua
(Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)
Abstract: Using the degree reduction design of energy dissipation building to reduce the details of seismic structuralmeasures of the main structure is an efficient and economic method in the reinforcement projects. The degree reductiondesign conditions of energy dissipation building in five relevant standards were compared, and the application suggestions ofdegree reduction design of energy dissipation building were put forward. For multi?storey structures, the bottom shear forceof the main structure under the response spectrum is reduced by more than 50%; for high?rise structures, the bottom of themain structure or the control floor ( relatively weak floor) bears the interlayer shear force under the response spectrum isreduced by more than 50%; the mixmum interlayer displacement of the energy dissipation building under the responsespectrum is reduced by more than 50%. Taking the reinforcement of a middle school as an example, the in?depth analysisfor the reinforcement scheme on energy dissipation building were carried out. Combined with the calculation results and therequirements of relevant codes and regulations, it shows that the shock absorption effect of the structure is obvious, and theseismic structural measures of the main structure can be reduced by 1 degree.
Keywords:energy dissipation; degree reduction design; seismic reinforcement; standards comparison; seismic structuralmeasure
第一作者:毛華,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事高層結(jié)構(gòu)設(shè)計、消能減震研究,Email:mh@ tjad.cn.
[引用本文] 毛華. 采用消能減震結(jié)構(gòu)進(jìn)行降度設(shè)計的方法探討[ J]. 建筑結(jié)構(gòu),2022,52(8):74?79. MAO Hua.Discussion on the degree reduction design method of energy dissipation building[J]. Building Structure,2022,52(8):74?79.
