A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestress carbon fiber plate bridge reinforcing effect monitoring method based on long gauge strain
The invention discloses a prestress carbon fiber plate bridge reinforcing effect monitoring method based on long gauge strain. The method comprises the following steps that a plurality of long gauge strain sensors are arranged on a prestress carbon fiber plate reinforcing section of a monitored bridge, acquiring long-gauge strain original data and a long-gauge strain time-history curve, acquiringa long-gauge strain time-history area caused by passing of a single vehicle at different time stages, solving the area surrounded by the long-gauge strain time history curves of all the long-gauge sensors, and drawing a distribution diagram along the longitudinal direction of the bridge, and improving reliability of an identification result through multiple times of sample data analysis, and achieving prestress loss evaluation through long-term monitoring. According to the method, the prestress loss of the prestress CFRP plate reinforced bridge can be rapidly evaluated under the condition thatbridge reinforcing construction and later-period operation traffic are not influenced, the distribution condition of the prestress loss of the bridge is obtained, and a reliable basis is provided formanagement and maintenance of the bridge.
本发明公开了一种基于长标距应变的预应力碳纤维板桥梁加固效果监测方法，包括以下步骤：在被监测桥梁的预应力碳纤维板加固段布置若干长标距应变传感器；采集长标距应变原始数据、长标距应变时程曲线；采集不同时间阶段单辆车通过引起的长标距应变时程面积；求解所有长标距传感器的长标距应变时程曲线所包围的面积大小，绘制成沿桥梁纵向的分布图；通过进行多次样本数据分析来提高识别结果的可靠性，通过长期监测实现对预应力损失评估。本发明能在不影响桥梁加固施工和后期运营交通的情况下对预应力CFRP板加固桥梁的预应力损失进行快速评估，得到桥梁预应力损失的分布情况，为桥梁的管养维修提供可靠依据。
Prestress carbon fiber plate bridge reinforcing effect monitoring method based on long gauge strain
The invention discloses a prestress carbon fiber plate bridge reinforcing effect monitoring method based on long gauge strain. The method comprises the following steps that a plurality of long gauge strain sensors are arranged on a prestress carbon fiber plate reinforcing section of a monitored bridge, acquiring long-gauge strain original data and a long-gauge strain time-history curve, acquiringa long-gauge strain time-history area caused by passing of a single vehicle at different time stages, solving the area surrounded by the long-gauge strain time history curves of all the long-gauge sensors, and drawing a distribution diagram along the longitudinal direction of the bridge, and improving reliability of an identification result through multiple times of sample data analysis, and achieving prestress loss evaluation through long-term monitoring. According to the method, the prestress loss of the prestress CFRP plate reinforced bridge can be rapidly evaluated under the condition thatbridge reinforcing construction and later-period operation traffic are not influenced, the distribution condition of the prestress loss of the bridge is obtained, and a reliable basis is provided formanagement and maintenance of the bridge.
本发明公开了一种基于长标距应变的预应力碳纤维板桥梁加固效果监测方法，包括以下步骤：在被监测桥梁的预应力碳纤维板加固段布置若干长标距应变传感器；采集长标距应变原始数据、长标距应变时程曲线；采集不同时间阶段单辆车通过引起的长标距应变时程面积；求解所有长标距传感器的长标距应变时程曲线所包围的面积大小，绘制成沿桥梁纵向的分布图；通过进行多次样本数据分析来提高识别结果的可靠性，通过长期监测实现对预应力损失评估。本发明能在不影响桥梁加固施工和后期运营交通的情况下对预应力CFRP板加固桥梁的预应力损失进行快速评估，得到桥梁预应力损失的分布情况，为桥梁的管养维修提供可靠依据。
Prestress carbon fiber plate bridge reinforcing effect monitoring method based on long gauge strain
基于长标距应变的预应力碳纤维板桥梁加固效果监测方法
WU BITAO (author) / ZHOU YUJIAN (author) / LU HUAXI (author) / REN LIANG (author)
2021-01-05
Patent
Electronic Resource
Chinese
IPC:
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
E01D
BRIDGES
,
Brücken
/
G01L
Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden
,
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
Existing bridge deformation resetting and carbon fiber plate prestress reinforcing system
| European Patent Office | 2024
Prefabricated highway bridge prestress reinforcing device
| European Patent Office | 2023
Bridge combined reinforcing method based on ECC-distributed prestress
| European Patent Office | 2024
Prestress carbon fiber reinforcing, tensioning and bending device
| European Patent Office | 2024
Fiber reinforced plastic plate, anchoring device and prestress reinforcing system
| European Patent Office | 2023