摘要
钢筋混凝土结构在遭受火灾后,由于高温的影响,混凝土材料会发生化学变化,强度和延性降低,导致整个结构和构件的物理力学性能降低,产生损伤。通过对某住宅遭受火灾后工程检测和加固的实例,介绍火灾后钢筋混凝土结构的检测以及钢筋网复合砂浆加固受火灾结构的加固方案,重点探讨钢筋网复合砂浆加固该结构梁、板的施工工艺。工程实践证明,该方法加固效果明显,施工方便且节省投资。
After reinforced concrete structures suffered from a fire, because of the impact of high temperature, a chemical change would occur in material of concrete, whose strength and ductility would be decreased, thus reducing the physical and mechanical properties of the whole structure and members, damages would be produced. According to a residential building suffered from a fire, it is mainly discussed the construction technology of strengthening beam and plate with high pedormance ferrocement.Engineering practice proves that this strengthening method has good effect, convenient construction and less cost.
出处
《工业建筑》
CSCD
北大核心
2009年第6期117-119,116,共4页
Industrial Construction
关键词
火灾
钢筋混凝土结构
复合砂浆钢筋网
加固
fire
reinforced concrete structures
high performance ferrecement mortar
strengthen
