884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

葉甲淳  金偉良  鄒道勤  嚴(yán)家熺
（浙江大學(xué)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(yīng)力引起的溫度裂縫問(wèn)題一直沒(méi)有得到很好的解決。有限元是計(jì)算溫度應(yīng)力的很好方法，但是對(duì)于計(jì)算中所需的溫度參數(shù)取值并沒(méi)有統(tǒng)一的標(biāo)準(zhǔn)。在參考已有溫度參數(shù)取值方法的基礎(chǔ)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(yīng)用于混凝土空心小砌塊試點(diǎn)建筑的溫度應(yīng)力計(jì)算。通過(guò)計(jì)算，證明這。方法是合理的。
[關(guān)鍵詞]  混凝土小型空心砌塊  年溫差  日溫差  組合溫差  溫度應(yīng)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