摘要
公路桥沥青混凝土伸缩缝是目前在我国发展起来的一种新型伸缩缝。本文采用粘弹性理论推导其温度应力计算公式,实测沥青混凝土的松弛模量。根据工程实践验证结果,认为采用计算的温度应力来判断变形缝的开裂温度是可行的。
Asphalt concrete expansion joint in highway bridge is a new kind of expan-sion joints in China. Formula for computing the thermal stress in the jointwas deduced based on the visco-elastic theory, and the related computing pro-gram was also compiled. The relaxation modulus of asphalt concrete was meas-ured. It is proved in the practice that it is feasible to determine the crackingtemperature of the asphalt concrete expansion Joint according to the computedthermal stress.
出处
《土木工程学报》
EI
CSCD
北大核心
1992年第4期23-29,共7页
China Civil Engineering Journal
