Structural Safety Monitoring during Retrofit of Shanghai Expo Puxi Entertainment Hall

2012 ◽  
Vol 226-228 ◽  
pp. 1203-1208
Author(s):  
Ming Zhao ◽  
Jun Liao

Shanghai Expo Puxi Entertainment Hall is reconstructed based on existing workshop building. To meet new function requirements of the hall, a structural column is removed and replaced with a jacking beam. A structural safety monitoring system is proposed and applied to evaluate the real-time structural state and ensure the structural safety. Vibrating wire sensors and FBG sensors are installed to monitor the stress of member of the space truss structure; ForesightTM series DSTS (Distributed Strain and Temperature Sensors) is installed to monitor the stress of the jacking beam. Results show that the structural safety monitoring system works stably. The safety monitoring system reflects the real-time behavior of the structure and controls the structural reconstruction safety effectively.

In this study, Bridge safety monitoring system using IOT is developed using the Wireless technology.With the help of Advancements in sensor technology have brought the automated real-time bridge health monitoring system. This system will help prevention in disaster management and recovery.IOT-based bridge safety monitoring system is developed using the Wireless Technology. By the use of wireless sensor nodes, various types of data can be collected like vibration, waterlevel and Bridge weight. Thease data would also be useful for monitoring and surveillance. The main moto of this paper is to develop a system that can prevent accidents or structural disasters of flyovers and bridges. This study gives the survey of various techniques used to monitor the conditions of the bridges and proposed a system for monitoring continuous structures and an ultrasonic sensor for monitoring the water level in the river to avoid traffic from a bridge in flood conditions using Kalman’s Filter algorithm. In case of emergency situations the gates of the Bridge will be automatically closed. The obtained data are transmitted to the server and database for admins to have real-time monitoring of the bridge conditions via mobile telecommunication devices.


2014 ◽  
Vol 624 ◽  
pp. 647-650
Author(s):  
Hong Mei Cao

Large span bridges are very important infrastructure of the nations. The enormous investment and significance in state economy make them get more and more recognition. At present, the technology of the safety monitoring of bridges is becoming a hotspot in both academic and engineering field. Now, safety monitoring systems of the structures have been applied to many large bridges in the world. Among all these parameters which can indicate the safety status of bridges, the deflection is indispensable. Although there are lots of sensors now used to measure the degrees of the deflection, it is still very scarce that the sensors can be made for long-distance, real-time and automatic online completely. The photo-electricity and liquid level deflection sensors (PLLD) introduced here are cheaper and of better-automaticity and higher precision and can work online continuously without contact. This paper will show the structure, performance and theory of our new sensor based on ARM7 in detail. In the end, a concrete application instance in XiaoGou bridge of ShanXi province will be given.


2013 ◽  
Vol 422 ◽  
pp. 215-220 ◽  
Author(s):  
Jie Cheng ◽  
Dian Wu Gao ◽  
Jun Fei Wang ◽  
Dong Ge Wen

A wireless coal mine safety monitoring system based on ZigBee wireless sensor network and GPRS wireless remote transmission was established, which enjoys the characteristics of ZigBee technology, including quick networking, low cost, less power consumption, simple network structure and real-time parameter monitoring. With mature GPRS technology, remote data transmission was achieved and associated director can be informed through short message sent to his cellphone, which contributes to the early identification of serious accidents and real-time treatment, thus increasing the safety of coal mining.


2013 ◽  
Vol 392 ◽  
pp. 379-381
Author(s):  
Jian Wei Leng ◽  
Shai Dai

Data acquisition is one of the processes to obtain the signal information. This paper designed a data collection system which is based on ARM Cortex-A8 processor for traditional crane, to acquire position signals and alarm signals. The results will be transmitted through RS232 serial communication bus to the receiver, then be displayed, so the field signals will be real-time monitored, the operations to the crane will be safe.


ICTIS 2011 ◽  
2011 ◽  
Author(s):  
Liang Tang ◽  
Dihua Sun ◽  
Yongfu Li ◽  
Weining Liu ◽  
Xia Liu ◽  
...  

2014 ◽  
Vol 602-605 ◽  
pp. 2276-2280
Author(s):  
Chuan Hua Li ◽  
Jing Yin ◽  
Xiao Fang Yang

A typical safety monitoring system architecture with basic functions including data collection, parameter setting, data processing and backup, warning judgment and processing is proposed based on analysis of potential safety hazards. With the theories such as T-S model, domain processing and fuzzy control, a fuzzy control model based on multi-sensor data fusion is established, and a safety monitoring system software is developed. Test result shows that the software supports both analog and real-time data, and can perform real-time monitoring of safety parameters like temperature and smoke with satisfactory online hazard warning performance, thus able to be applied in environmental safety monitoring.


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