Next Article in Journal
Mechanical Behaviour of Clinched Joints in Configurations
Previous Article in Journal
Experimental Investigation on Crack Growth in Pre-Notched Concrete Beams
Article Menu
Issue 8 (ICEM 2018) cover image

Article Versions

Export Article

Open AccessProceedings
Proceedings 2018, 2(8), 404; https://doi.org/10.3390/ICEM18-05282

Research on the Artificial Acceleration Test System of Combined Environment and Loading Effect for the Bridge Structure

1
State Key Laboratory Breeding Base of the Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
2
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018.
*
Author to whom correspondence should be addressed.
Published: 29 May 2018
PDF [803 KB, uploaded 13 June 2018]

Abstract

The bridges will be in service in a complex environment for over 100 years under the increasing traffic loading. So the long-term performance determines their safety and durability. Limited by the test condition and ability, present researches are mostly focused on the natural environment exposure tests and artificial environment acceleration tests for materials and components. According to the service conditions and load characteristics of the bridges, the accelerated test system was developed for bridge structure under combined environment and loading. This test system consists of three parts, including a large environment box, loading system and monitoring system. The environment box is 32 m long, 4 m wide and 3/10 m high. It is divided into 5 working bins which can be used alone or in combination. The simulation environment includes high temperature drying, low temperature freezing and thawing, damp cold, high temperature cycle, salt fog, rain, carbonation, temperature and humidity alternating and optical spectrum light aging environment. The servo static and dynamic loading system adopts Servotest actuators with loading tonnage from 400 tons to 50 tons. And the total tonnage is 1200 tons. Aided by the prestressed concrete reaction wall, steel structure frames and the anchor system, the external loading system can exert dynamic and static loads on the bridge structure in the environment box. And the non-contact nondestructive monitoring system can real-time monitor and measure their long-term deformation, internal force, cracking and other damage. This artificial acceleration test system can support the Chinese Long Term Bridge Program, and improve the safety, durability, reliability and long service life of bridges and other civil engineering.
Keywords: bridge structure; combined environment and loading effect; artificial acceleration test system; long term performance bridge structure; combined environment and loading effect; artificial acceleration test system; long term performance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Yao, G.; Tan, X.; Li, S.; Huang, P.; Yu, J. Research on the Artificial Acceleration Test System of Combined Environment and Loading Effect for the Bridge Structure. Proceedings 2018, 2, 404.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Proceedings EISSN 2504-3900 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top