- 摘 要
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鄭銳謀
（福建省建筑科學研究院 福州 350002）[提要] 有粘結(jié)預應力混凝土樓板的強度、抗裂度、抵抗災害能力以及經(jīng)濟指標優(yōu)于無粘結(jié)預應力混凝土樓板，但在設(shè)計上尚有待規(guī)范。結(jié)合國外規(guī)范及工程實踐，作者認為我國規(guī)范對預應力筋的設(shè)計強度規(guī)定偏于保守需要予以修訂，同時提出了有粘結(jié)預應力混凝土樓板拉應力控制、普通鋼筋設(shè)置和間距的設(shè)計建議，以期在我國進一步推廣該項技術(shù)。
[關(guān)鍵詞] 有粘結(jié)預應力混凝土樓板 規(guī)范 預應力筋設(shè)計強度 普通鋼筋 配筋率This paper describes the advantages of bonded post-tension concrete slab over unbonded in many aspects, such as strength, disaster resistance and economical index. But its design method should be standardized. Author considers that the stipulation of tendon design strength in Chinese code(GBJl0 - 89)is conservative and should be revised. In order to spread the application of bonded post-tension concrete slab in China widely, author also gives some suggestions for bonded post-tension concrete slab, such as control of tensilestress, content and spacing of reinforcement.
Keywords: bonded post-tension slab; code; design strength; tendon; reinforcement; content; spacing
