熱力耦合視角下地鐵工程混凝土結(jié)構(gòu)開裂影響因素研究

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中圖分類號(hào)：TQ178；U231.3 文獻(xiàn)標(biāo)志碼：A文章編號(hào)：1001-5922（2025）05-0171-04

Abstract：The pouring reinforced concrete structural parts after rust are prone to cracking behavior，and the research experiments were carried out to exploreand study them.Basedon the experimental results and related literature，the influencing factors of rustand crackingof reinforcedconcrete under thermal coupling were analyzed and summarized.Firstly，thechloride ion transport modeinreinforced concrete was similarlysimulated，thechlorideioncontent of reinforced concreteatthesame positionindiffrent timeperiodswas detected，and itsthermodynamicload was used，and then thecoeficient parameterssuchas timeand temperatureof steelbarexpansion wereadded，the test temperature was increased，and the rust expansion was tested，and a series of routine analyses were carried out according to this.The summary analysis of the data can wellsimulate and analyze the influencing factors of cracking in the concrete structure of the subway project，which is conducive to the timelyupdate and iteration of the reinforced concrete in the subway.

Key words ：thermal coupling；subway engineering ；concrete structure ；cracking factor

鋼筋混凝土由于其特殊的結(jié)構(gòu)在潮濕且接觸空氣的情況下，會(huì)誘導(dǎo)混凝土中的氯離子加速移動(dòng)，從而使得鋼筋混凝土膨大或者混凝土斷裂，導(dǎo)致鋼筋混凝土的使用壽命大大降低[1]。（剩余5147字）