摘要
参照相关规范,利用简易适用于纤维筋拉伸试验仪测得碳纤维筋强度及弹模,通过改变有效长度、持荷时间设计6组试件,记录预应力碳纤维筋张拉持荷过程中应力值不断降低的过程,并对预应力碳纤维筋损失进行了分析,结合实验数据,利用一元线性回归推导得出了松弛建议计算公式。
With reference to relevant specification, using carbon fiber reinforced strength and elastic modulus simple suitable for fiber reinforce- ment tensile test, through changing the effective length, design the load time 6 set of events, record the prestressed carbon fiber reinforced tensio- ning decrease of stress value during the unloading process for a process, analyzed the loss of pre-stressed carbon fiber reinforced, combining with experimental data, using linear regression to derive the calculation formula of relaxation suggestion.
出处
《山西建筑》
2013年第18期92-94,共3页
Shanxi Architecture
基金
重庆市科技攻关重点项目"全无磁耐腐蚀地震观测站建筑设计及施工"(项目编号:CSTC2011AB0043)
关键词
碳纤维筋
预应力
损失
计算公式
carbon fiber reinforced
pre-stressed
loss
calculation formula
