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[提要]  應(yīng)用彈性地基梁理論，提出了考慮砌體局部受壓特點(diǎn)的支承于砌體上的梁端有效支承長度計(jì)算模式；同時(shí)，利用平截面假定，得到有效支承長度的簡化計(jì)算模式。根據(jù)已有試驗(yàn)結(jié)果，建立了有效支承長度計(jì)算公式，該公式避免了現(xiàn)行砌體結(jié)構(gòu)設(shè)計(jì)規(guī)范中相應(yīng)公式的不足，并能考慮上部荷載的影響，且計(jì)算結(jié)果與試驗(yàn)結(jié)果吻合較好。
[關(guān)鍵詞]  砌體結(jié)構(gòu) 有效支承長度 計(jì)算方法

Based on the elastic theory, a modified mode of effective bearing length is put forward; a simplified mode is also put forward by use of the assumption of plane section. These modes can consider features oflocal compression of masomy. Formula about effective bearing length are founded by the experiments' results. They can evade short-comings of the formula in Chinese Code GBJ3-88 and also consider the influence of stress existing inthe masonry. The evaluation results have good agreements with the experiments9.
Keywords: masomy structure;effective bearing length;computing method