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　郭樟根  孫偉民  葉燕華  李利群  韓曉健 （南京工業(yè)大學(xué)土木工程學(xué)院 210009）

[提要] 研究了砌體結(jié)構(gòu)裂縫的種類與成因，對(duì)砌體房屋的溫度裂縫進(jìn)行了分析與計(jì)算，進(jìn)行了預(yù)應(yīng)力混凝土小型空心砌塊帶窗洞砌體的單調(diào)水平荷載試驗(yàn)，研究了預(yù)應(yīng)力砌體的開裂位置、開裂荷載及抗裂性能。研究結(jié)果表明，預(yù)應(yīng)力改變了砌體結(jié)構(gòu)的開裂位置，顯著提高了結(jié)構(gòu)的開裂荷載，有效地改善了砌體結(jié)構(gòu)的抗裂性能。同時(shí)探討了用預(yù)應(yīng)力來控制砌體房屋溫度裂縫的可行性。
[關(guān)鍵詞] 溫度裂縫預(yù)應(yīng)力砌體混凝土小型空心砌塊抗裂性能

The cause of formation and various kinds of cracks in masonry construction are researched, and the temperature cracks of masonry are analyzed and calculated. Through the transverse static loading test on prestressed small-sized concrete hollow block masonry models,crack-resistance behavior is analyzed. The results of the test clearly show that after being prestressed the material property of masonry is changed, and the prestressed masonry wall's capacity of crack-resistance is improved. The control technique of masonry's temperature-crack of prestressing the masonry is illustrated.
Keywords: temperature crack; prestressed masonry; small-sized concrete hollow block; crack-resistance behavior

    　參  考  文  獻(xiàn)
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