【作者】 曹万林； 董宏英； 张建伟； 许方方； 李东华；

【Author】 CAO Wanlin,DONG Hongying,ZHANG Jianwei,XU Fangfang,LI Donghua (College of Architecture and Civil Engineering, Beijing University of Technology,Beijing 100124,China)

【机构】 北京工业大学建筑工程学院；

【摘要】 再生混凝土结构的研究与发展已受到工程界的密切关注。本文简要介绍了课题组近年有关再生混凝土结构抗震性能、抗火性能和抗冻融性能研究的情况。研究表明:与普通混凝土结构相比,经合理设计的再生混凝土结构抗震性能退化并不明显,可满足一定条件下建筑结构抗震设计的要求;再生混凝土结构抗火性能特点明显,再生骨料取代率是影响再生混凝土结构抗火性能的关键因素;再生混凝土结构抗冻融性能比普通混凝土有明显退化,但经合理设计仍可用于一定条件下的寒冷地区再生混凝土结构的设计。更多还原

【Abstract】 The research and development of recycled concrete structure has been closely paid attention by the engineering.The paper briefly introduces the research on the seismic behavior,fire-resistant behavior and freeze-thaw resistant behavior related to recycled concrete structures in recent years.Studies show that the seismic performance of recycled concrete structure doesn’t degenerate obviously compared with the normal concrete structure.And this can meet seismic design requirements for the building structure.The fire-resistant behavior of recycled concrete structure is evident.And the ratio of recycled aggregate replacement is the key factor affecting fire-resistant behavior.Compared with the normal concrete structure,the freeze-thaw resistant behavior of recycled concrete structure is reduced obviously.But it still can be used in the building structure in some cold area under certain condition through the rational design.更多还原