自内力加载装置的设计与实践  

Design and Practice of Loading Installment

作　　者：邢晨曦[1] 管东芝[1] 施天生[1] 曾鹏[1] 

机构地区：[1]东南大学土木工程学院,江苏南京211189

出　　处：《工程与试验》2010年第2期68-71,共4页Engineering and Test

基　　金：东南大学SRTP资助项目(编号:09052119)

摘　　要：土木工程本科教学用自内力加载装置着眼于土木工程专业本科生实验教学工作。该装置由钢制自内力反力架、预应力混凝土梁和液压千斤顶组成,采用由下向上的加载方式加载,梁就位后上表面的高度在1.5m左右,方便观察和操作;预应力梁工作期间不产生裂缝,可开设预应力梁应力分布实验、混凝土电阻应变计精度校核实验。The loading installment used in civil engineering experiments is devoted to the realization of undergraduate experimental teaching.This bottom-up-loading installment is made up of a steel self-balanced counterforce device,a pre-stressed concrete beam and a hydraulic jack.The surface of the beam is settled at a height of 1.5 meters,which is convenient for observation and operation.The pre-stressed concrete beam will not suffer from cracks,which can be used in a-strain-distribution-experiment and a precision-calibration-experiment of strain gauge etc.

关 键 词：土木工程本科教学 自内力反力架 预应力梁 应变片 

分 类 号：TH89[机械工程—仪器科学与技术]