不同孔道形式体外预应力简支梁抗弯试验研究  

Experimental Study on Bending Resistance of External Prestressed Simply Supported Beams with Different Channels

作　　者：李英田[1] LI Ying-tian(School of Geography and Tourism,Jiaying University,Meizhou 514015,China)

机构地区：[1]嘉应学院地理科学与旅游学院,广东梅州514015

出　　处：《嘉应学院学报》2022年第6期59-61,共3页Journal of Jiaying University

基　　金：嘉应学院校级科研项目(317E0212);校级教学质量与教学改革工程项目(420A0512)。

摘　　要：进行了两根孔道形式不同的单转向块折线型砼简支梁正截面静力加载试验,其中一根梁端部孔道形式为水平,另一根梁孔道形式为倾斜,倾斜角度为7°,试验对两根单转向块梁的承载能力进行了对比.结果表明,孔道形式不同对梁的开裂荷载(P_(cr))、屈服荷载(P_(y))、极限荷载(P_(u))均有不同程度的影响.试验过程中全程记录和分析了两根梁的承载力、破坏形态和变形情况.In this paper,the static loading test of normal section of two single steering block folded concrete simply-supported beams with different channels was carried out.The channel form at the end of one beam was horizontal,and the channel form of the other beam was inclined,and the inclined Angle was 7°.The test compared the bearing capacity of two single steering block beams.The results show that the crack load(P_(cr)),yield load(P_(y))and ultimate load(P_(u))of the beam are affected by different channels.The bearing capacity,failure forms and deformation of the two beams were recorded and analyzed in the whole process of the test.

关 键 词：孔道形式 试验 体外预应力 

分 类 号：TU757.4[建筑科学—建筑技术科学]