摘要
近几十年来,国内外的混凝土工程结构的实践证明,短时急剧变化的太阳辐射引起的结构物的温度变化,可以产生相当大的温度应力,甚至使混凝土结构发生严重开裂。通过在某预应力混凝土连续刚构桥(130+3×235+130)的施工控制过程中,对混凝土温度测试提出了一套方案,通过测试温度变化来对温度效应进行研究,并对以后的研究提供数据。
In the recent several dozens years, the domestic and foreign concrete engineering structure, practice proves that, the temperature change of structure caused by the short - time rapid change of solar radiation, may have the quite great temperature stress, and even causes the concrete structure to have the serious fracture. In view of this question, in the construction controlled process of some prestressed concrete continuous rigid frame bridge （ 130 ＋ 3 × 235 ＋ 130）, author proposed set of plans to the concrete temperature test, conducted the research through the test temperature change to the temperature effect, and will provide the data to the later research.
出处
《江苏建筑》
2007年第3期37-38,78,共3页
Jiangsu Construction
关键词
高墩大跨连续刚构桥
温度效应
混凝土箱梁
温度应力
high-pier ＆ long-span continuous rigid frame bridge
temperature effect
concrete box girder
temperature stress
