知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN109343591A 基于智能钢绞线的后张预应力张拉精细化控制装置及方法 有权

基于智能钢绞线的后张预应力张拉精细化控制装置及方法
摘要：
本发明涉及一种光纤光栅后张预应力张拉精细化控制装置及方法，它包括由光纤光栅智能钢绞线(1)、普通钢绞线(3)、张拉装置和锚固体系(4)。本发明综合考虑光纤光栅智能钢绞线应用特性和后张预应力张拉过程，采用智能钢绞线少量代替普通钢绞线，在后张预应力张拉过程中，优先张拉智能钢绞线，通过智能钢绞线的测试数据在现场实地反推出液压张拉装置的张拉控制值。而后采用该液压张拉装置控制值进行其余普通钢绞线的张拉，以求实现后张预应力张拉过程的精细化控制。本发明可应用于采用钢绞线作为受力构件的后张预应力混凝土各种结构中。
摘要（英）：

The invention relates to a device and a method for fine controlling a post-tensioning prestress tensioning pross of fiber gratings. The device comprises fiber grating intelligent steel strands (1), common steel strands (3), a tension apparatus and an anchor system (4). The method comprehensively considers the application characteristics of the fiber grating intelligent steel strands and the post-tensioning prestress tensioning process, and adopts a small amount of intelligent steel strands instead of the common steel strands. The method comprises the following steps of: preferentially tensioning the intelligent steel strands in the post-tensioning prestress tensioning process; calculating out the tension control value of a hydraulic tension apparatus on the spot through the test data of the intelligent steel strands; and using the control value of the hydraulic tension apparatus to carry out the tension of the remaining common steel strands, so as to achieve the fine control of the post-tensioning prestress tensioning process. The device and the method can be applied to various structures of post-tensioned prestressed concrete using steel strands as force members.

公开/授权文献
0/0