混凝土构筑物因出现功能性改变,如接建、增加荷载等,或在出现质量问题,如配筋不足、灾后修补、混凝土强度不够等,都需要进行加固。其加固设计及加固施工方案的制定尤为重要,对于需要加固的构筑物,应根据构筑物的不同情况制定不同的加固方案。方案的确定要遵循安全、经济、快捷、施工方便的原则,只有这样,加固工程才能收到良好的社会效益和经济效益。1.混凝土结构加固设计 Concrete structures need to be reinforced due to functional changes such as build-up, increased loads, or in the presence of quality problems such as inadequate reinforcement, post-disaster repair, and insufficient concrete strength. The reinforcement design and reinforcement construction plan are particularly important. For structures that need to be reinforced, different reinforcement schemes should be developed according to the different conditions of the structure. The determination of the plan must follow the principles of safety, economy, speed, and ease of construction. Only in this way can the reinforcement project receive good social and economic benefits. 1. Concrete structure reinforcement design