本文選題：核電廠安全殼 + 高溫��； 參考：《世界地震工程》2017年03期

【摘要】：為了研究溫度對預(yù)應(yīng)力混凝土安全殼結(jié)構(gòu)抗壓能力的影響,建立考慮預(yù)應(yīng)力鋼束的安全殼結(jié)構(gòu)有限元模型,計算分析了高溫作用下安全殼結(jié)構(gòu)的徑向位移、應(yīng)變、預(yù)應(yīng)力以及結(jié)構(gòu)開裂等參數(shù)隨內(nèi)壓變化情況。結(jié)果表明:在相同內(nèi)壓作用下,溫度越高安全殼結(jié)構(gòu)的變形越大;當(dāng)安全殼結(jié)構(gòu)內(nèi)部溫度低于200℃時,安全殼承壓能力基本不發(fā)生變化,即在此溫度范圍內(nèi)溫度對安全殼承壓能力基本沒有影響;當(dāng)安全殼結(jié)構(gòu)內(nèi)部溫度達(dá)到300℃時,安全殼的承壓能力較常溫情況時下降明顯。
[Abstract]:In order to study the effect of temperature on the compressive capacity of prestressed concrete containment structure, a finite element model of containment structure considering prestressed steel bundle is established, and the radial displacement and strain of containment structure under high temperature are calculated and analyzed. The parameters of prestress and structural cracking vary with internal pressure. The results show that under the same internal pressure, the higher the temperature, the greater the deformation of the containment structure, and when the internal temperature of the containment structure is lower than 200 鈩，

本文編號：1776936