为研究温度-荷载耦合下混杂纤维混凝土蠕变行为，开展钢纤维和聚丙烯纤维混凝土在20~800 ℃的压缩蠕变试验。测试变量包括温度、荷载水平、加热速率、混凝土强度和混凝土中是否掺入纤维。结果表明：瞬态蠕变应变（ε _trc)在总应变中的占比较大。温度范围和应力水平对ε _trc有显著影响，特别是在温度高于500 ℃和应力水平高于40%时；目标温度一定，ε _trc总量一定，加热速率与瞬态蠕变增长速率呈正相关关系；在普通强度混凝土中掺入钢纤维能够小幅降低混凝土的ε _trc，而在高强混凝土中加入聚丙烯纤维可显著提高混凝土ε _trc。

To investigate the creep behavior of hybrid fiber-reinforced concrete under coupled temperature and load conditions, compression creep tests were conducted on steel fiber and polypropylene fiber-reinforced concrete at temperatures ranging from 20 °C to 800 °C. The test variables included temperature, load level, heating rate, concrete strength, and the presence of fibers in the concrete. The results showed that transient creep strain （ε _trc) accounted for a significant proportion of the total strain. The temperature range and stress level had a significant impact on ε _trc, especially at temperatures above 500 °C and stress levels above 40%. When the target temperature was constant and the total ε _trc was fixed, the heating rate was positively correlated with the rate of ε _trc increase. Adding steel fibers to normal-strength concrete could slightly reduce the ε _trc of the concrete, while incorporating polypropylene fibers into high-strength concrete significantly increased the ε _trc.