Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rapid prestress FRP grid reinforcing method
The invention discloses a rapid prestress FRP grid reinforcing method. The rapid prestress FRP grid reinforcing method comprises the following steps that (1) the surface of a to-be-reinforced concretestructure is cleaned; (2) prestress anchorage devices are mounted on the surface of the structure; (3) the surface of the structure is coated with a layer of interface agent; (4) the two ends of an FRP grid are fastened in the prestress anchorage devices correspondingly, and then the prestress anchorage devices are tensioned; (5) the middle of the FRP grid is sealed and coated with polymer mortar, and the two ends of the FRP grid are sealed and coated with geopolymer mortar; and (6) after the geopolymer mortar at the two ends reaches the design strength, the prestress anchorage devices are dismounted, and the middle polymer mortar continues to be cured till the middle polymer mortar reaches the design strength. The reinforcing method is simple in process and low in cost, reinforcing can be completed within a short time, the stress performance of the damaged part of the concrete structure is effectively improved, and the bearing capacity and durability of the structure are improved.
本发明公开一种快速预应力FRP网格加固方法，包括如下步骤：(1)对待加固混凝土结构的表面进行清理；(2)在结构的表面安装预应力锚具；(3)向结构表面涂抹一层界面剂；(4)将FRP网格的两端分别紧固在预应力锚具中，再张拉预应力锚具；(5)采用聚合物砂浆对FRP网格中部进行封涂，并采用地聚物砂浆对该FRP网格两端进行封涂；(6)在两端地聚物砂浆达到设计强度后，拆除预应力锚具，并继续养护中部聚合物砂浆至其达到设计强度。本发明的加固方法工艺简单，成本较低，可在较短时间内完成加固，有效改善混凝土结构损伤部位的受力性能，提升结构承载力与耐久性。
Rapid prestress FRP grid reinforcing method
The invention discloses a rapid prestress FRP grid reinforcing method. The rapid prestress FRP grid reinforcing method comprises the following steps that (1) the surface of a to-be-reinforced concretestructure is cleaned; (2) prestress anchorage devices are mounted on the surface of the structure; (3) the surface of the structure is coated with a layer of interface agent; (4) the two ends of an FRP grid are fastened in the prestress anchorage devices correspondingly, and then the prestress anchorage devices are tensioned; (5) the middle of the FRP grid is sealed and coated with polymer mortar, and the two ends of the FRP grid are sealed and coated with geopolymer mortar; and (6) after the geopolymer mortar at the two ends reaches the design strength, the prestress anchorage devices are dismounted, and the middle polymer mortar continues to be cured till the middle polymer mortar reaches the design strength. The reinforcing method is simple in process and low in cost, reinforcing can be completed within a short time, the stress performance of the damaged part of the concrete structure is effectively improved, and the bearing capacity and durability of the structure are improved.
本发明公开一种快速预应力FRP网格加固方法，包括如下步骤：(1)对待加固混凝土结构的表面进行清理；(2)在结构的表面安装预应力锚具；(3)向结构表面涂抹一层界面剂；(4)将FRP网格的两端分别紧固在预应力锚具中，再张拉预应力锚具；(5)采用聚合物砂浆对FRP网格中部进行封涂，并采用地聚物砂浆对该FRP网格两端进行封涂；(6)在两端地聚物砂浆达到设计强度后，拆除预应力锚具，并继续养护中部聚合物砂浆至其达到设计强度。本发明的加固方法工艺简单，成本较低，可在较短时间内完成加固，有效改善混凝土结构损伤部位的受力性能，提升结构承载力与耐久性。
Rapid prestress FRP grid reinforcing method
一种快速预应力FRP网格加固方法
WU ZHISHEN (Autor:in) / WANG XIN (Autor:in) / HE WEIDONG (Autor:in) / ZHU ZHONGGUO (Autor:in) / TAO JIA (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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