大直徑預應力圓板結構設計
包文華 王會云 吳立春
- 摘 要
-
包文華 王會云 吳立春
(承德市建筑設計研究院 承德 067000)[提要] 大直徑圓形平板結構采用無粘結預應力技術，與矩形平板相比，其結構受力特點、布筋方式、設計計算有著不同的規(guī)律。采用雙向條帶“十”字配筋方式進行了預應力筋和非預應力筋布置，運用有限元法驗算了等效荷載作用下圓板的變形，有效地解決了大直徑預應力圓板的結構設計。
[關鍵詞] 預應力圓板 布筋方式 結構設計Using the technique of unbonded prestress in large diameter circular slab has different rule in contrast with rectangular slab in character of structure behavior, reinforcement distribution, design and calculation. Adopting bidirectional stripe cross reinforcement and finite element analysis under equivalent loads, the structural design of prestressed circular slab with large diameter is effectively solved.
Keywords: prestressed circular slab; reinforcement distribution; structural design
