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    戴國(guó)瑩
    （中國(guó)建筑科學(xué)研究院  北京 100013）

[提要]  簡(jiǎn)要介紹新抗震設(shè)計(jì)規(guī)范對(duì)89抗震設(shè)計(jì)規(guī)范的改進(jìn)，包括：新的地震動(dòng)參數(shù)區(qū)劃圖，場(chǎng)地類別劃分，長(zhǎng)周期和不同阻尼的設(shè)計(jì)反應(yīng)譜，雙向扭轉(zhuǎn)計(jì)算和新的變形驗(yàn)算要求，抗震概念設(shè)計(jì)的進(jìn)一步補(bǔ)充，放松框架柱軸壓比要求的構(gòu)造，抗震墻約束邊緣構(gòu)件的設(shè)計(jì)，以及簡(jiǎn)體結(jié)構(gòu)、高層鋼結(jié)構(gòu)抗震設(shè)計(jì)的要求和多層建筑減震的設(shè)計(jì)原則。
[關(guān)鍵詞]  規(guī)范  抗震設(shè)計(jì)  修訂  建筑結(jié)構(gòu)

The Code fbr Seismic Design of Buildings ( GBJ11-89) has been revised. A brief introduction is given to some major improvement in this revised edition. They are the new zoning map of design parameters of earthquake motion, the modification of design seismic response spectra, the torsion analysis and cleformation checking for building structures, the requirement for regular building, the control axial pressure of RC columns, the detail measure of end in RC structural wall. The design method has proposed for some new structural system in this revised edition, which are seismic steel structures of tall building, seismic RC tube system and isolation earthquake of multi-story structures, and so on.
Keywords: code; seismic design; improvement; building structures