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葉甲淳 金偉良 鄒道勤 嚴家熺
（浙江大學結(jié)構(gòu)工程研究所 杭州 310027）[提要] 砌體結(jié)構(gòu)中由溫度應力引起的溫度裂縫問題一直沒有得到很好的解決。有限元是計算溫度應力的很好方法，但是對于計算中所需的溫度參數(shù)取值并沒有統(tǒng)一的標準。在參考已有溫度參數(shù)取值方法的基礎上，提出了既考慮年溫差又考慮日溫差的組合溫差取值方法，并將這一方法應用于混凝土空心小砌塊試點建筑的溫度應力計算。通過計算，證明這。方法是合理的。
[關鍵詞] 混凝土小型空心砌塊 年溫差 日溫差 組合溫差 溫度應力Thermal crack problem in masonry structure is not resolved yet. Finite element analysis method is an effective method for calculating thermal stress,but the temperature parameters for calculation have no uniform standard. We put forward a method named combined-difference-1n-temperature, which involves year-difference-in-temperature and day-difference-in-temperature.By this method, we calculate the combined difference-in-temperature and apply them to the thermal stress calculation for a small concrete hollow block building. The results proved that the method is reasonable.
Keywords: small concrete hollow block; thermal stress; difference; temperature; combination; year; day
