有粘結(jié)和無粘結(jié)預(yù)應(yīng)力混凝土扁梁框架抗震性能試驗
程浩德,房貞政
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(福州大學(xué)結(jié)構(gòu)工程研究所,福州 350002)[摘要]通過對一榀有粘結(jié)預(yù)應(yīng)力混凝土扁梁框架和一榀無粘結(jié)預(yù)應(yīng)力混凝土扁梁框架所進行的擬動力抗震性能試驗,分析比較了它們的破壞形態(tài)、動力反應(yīng)、滯回曲線、剛度退化等抗震性能。試驗結(jié)果表明,有粘結(jié)預(yù)應(yīng)力混凝土扁梁框架和無粘結(jié)預(yù)應(yīng)力混凝土扁梁框架的各種反應(yīng)沒有顯著的差異。無粘結(jié)預(yù)應(yīng)力混凝土扁梁框架應(yīng)當(dāng)可以滿足抗震要求。[關(guān)鍵詞]預(yù)應(yīng)力混凝土;扁梁框架;抗震性能;擬動力試驗Experiment study on seismic behavior of bonded prestressed and unbonded prestressed concrete flat beam frameCheng Haode, Fang Zhenzheng(Institute of Structural Engineering, Fuzhou University, Fuzhou 350002, China)Abstract:The pseudodynamic tests of one bonded and one unbonded prestressed concrete flat beam frame have been carried out to research the failure pattern, dynamic response, hysteresis curves and rigidity degeneration. Based on the results of the tests, there is no obviously different response between bonded and unbonded prestressed concrete flat beam frames. The unbonded prestressed concrete flat beam frame can meet the aseismic requirement.Keywords:prestressed concrete; flat beam frame; seismic behavior; pseudo-dynamic test*福州大學(xué)科技發(fā)展基金(0050824779)。作者簡介:程浩德,碩士,在職博士生,Email:chd@fzu.edu.cn。