- 摘 要
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王艷晗1 張偉濤2 范 進2 呂志濤3（1 南京航空航天大學土木工程應用技術(shù)研究所 210016； 2 南京理工大學 210014； 3 東南大學土木工程學院 南京 210096）
[提要] 進行了40根預應力砌體柱的受壓試驗。試驗結(jié)果表明，對砌體柱施加預應力，尤其在大偏心情況下，能夠大大改善其受力性能，提高抗壓承載力，擴大其使用范圍。分析了影響后張預應力砌體柱受壓承載力的各主要因素，研究了施加預應力后砌體柱受壓破壞形態(tài)的改變，并探討了預應力損失和加載過程中預應力鋼筋應力的變化。
[關(guān)鍵詞] 砌體柱 后張預應力 受壓承載力 預應力損失The tests of 40 post-tensioned masonry columns are carried out in order to treat their behavior. The experiment results show that prestressing masonry columns, especially the elements with large eccentricity can improve their performance. increase compressive strength and expand their application scope. Based on the test results, the main factors influencing the carrying capacity of post-tensioned masonry columns, changes of destructive form, pretressed loss and variances of stress of prestressed tendon in course of loacl are studied.
Keywords: masonry column; post-tensioning; compressive capaaty; prestressed loss
