预应力锚索框架梁支护结构的设计  

DESIGN OF SUPPORT OF FRAME BEAM AND PRESTRESSED ANCHOR

作　　者：梁瑶[1] 周德培[1] 赵刚[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《岩石力学与工程学报》2006年第2期318-322,共5页Chinese Journal of Rock Mechanics and Engineering

摘　　要：预应力锚索与混凝土框架梁的复合结构能够充分发挥锚索和框架梁的锚固作用,广泛应用于边坡加固中。根据锚索和框架梁各自的特点,说明预应力锚索框架梁复合支护结构的边坡加固机制;通过对锚索框架梁受力体系的分析,介绍框架梁的内力计算方法和锚索的主要参数设计。根据锚索的状态,划分为张拉阶段和工作阶段。针对锚索的工作阶段,提出利用滑坡推力确定框架梁上的土压力,从而采用倒梁法反推锚索拉力,计算出梁的内力。In view of the support effect of prestressed anchor and flame beam, the support of frame beam and prestressed anchor is widely applied to the reinforcement of slope. According to the characteristics of anchor and frame beam, the reinforcing mechanism of the support is discussed. Through analysis of the load system on frame beams, the calculation method of internal force and main design parameters are introduced. According to the condition of prestressed anchor, two phases such as tension phase and working phase are divided. With respect to the working phase, the soil pressure on frame beam is determined by using the slope thrust to back-calculate the tension of prestressed anchor and calculate the internal force of beams.

关 键 词：边坡工程 加固 框架梁 锚索 

分 类 号：P642.22[天文地球—工程地质学]