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　楊建江  吳文濤?。ㄌ旖虼髮W(xué)建工學(xué)院　300072）

[提要]  對(duì)國(guó)內(nèi)外的試驗(yàn)資料進(jìn)行了研究分析，對(duì)有代表性的砌體抗壓強(qiáng)度計(jì)算模式不定性進(jìn)行了比較。結(jié)果顯示，我國(guó)砌體設(shè)計(jì)規(guī)范的砌體抗壓強(qiáng)度計(jì)算模式對(duì)于抗壓強(qiáng)度較高的燒結(jié)普通磚、燒結(jié)多孔磚砌體安全儲(chǔ)備偏大。并對(duì)規(guī)范設(shè)計(jì)計(jì)算公式、計(jì)算模式不定性的考慮以及公式局部限制條件等提出了補(bǔ)充建議。供我國(guó)砌體結(jié)構(gòu)設(shè)計(jì)與施工規(guī)范的修訂時(shí)參考。
[關(guān)鍵詞]  砌體抗壓強(qiáng)度  規(guī)范  試驗(yàn)資料  計(jì)算模式不定性

Through analysis on the data collected from published experimental results, the uncertainty in several models proposed in the literature for prediction of masonry compressive strength are studied. Furthermore, where possible, models suggested in representative design codes are also examined in the same manner. It is found that the Chinese code for design of masonry structures ( GB50003-2001) of proposed models is most suitable and foreign existing models give highly uncertain values of the compressive strength, whereas foreign code values are uncertain as well as perhaps over-conservative. Incorporation of a model uncertainty factor is also achieved.
Keywords:  masonry; compressive strength; design codes; experimental data; model uncertainty

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