دانلود رایگان مقاله لاتین روش فتوگرامتری رقومی از سایت الزویر
عنوان فارسی مقاله:
بهبود روش فتوگرامتری رقومی برای نظارت کرک
عنوان انگلیسی مقاله:
Improved digital photogrammetry technique for crack monitoring
سال انتشار : 2015
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مقدمه انگلیسی مقاله:
1. Introduction
Much of the infrastructure in Japan was developed during the period of rapid economic growth in the 1960s. Some of the structures involved are now more than 50 years old; consequently, it is essential that they be monitored in order to ensure that they are safe [1,2]. Inspections to evaluate the durability and service life of such infrastructure play an important role in determining the countermeasures that need to be taken, such as reinforcement, repair, and reconstruction. In infrastructure containing concrete, such as bridges and tunnels, crack widths and patterns on surfaces are two of the most important signs used to estimate their durability. To measure the change in crack width and to prevent resultant damage, it is necessary to establish techniques for monitoring the crack behavior (e.g., [3,4]). Most existing approaches in this area are hand-sketch based, and crack openings are often evaluated using measuring magnifiers or crack width rulers; therefore,conventional measurement methods are manual, which may lead to nonobjective evaluation. Fiber optic sensors are also being used for crack monitoring. This technique does not utilize visual inspection and achieves measurements with accuracy similar to the standard strain gauges and extensometers; however, the cost of the data readout equipment used in applications coupled with installation and connection of the acquisition systems is very high (e.g., [5,6]). In contrast to wired systems, wireless systems require no cables for data transfer and are known for their low cost of deployment; however, their lifetime is limited by their battery-operated sensing devices (e.g., [7,8]).
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کلمات کلیدی:
Improved digital photogrammetry technique for crack monitoring dl.acm.org/citation.cfm?id=2853656 by S Nishiyama - 2015 - Cited by 4 - Related articles Oct 1, 2015 - Improved digital photogrammetry technique for crack monitoring, 2015 Article. Bibliometrics Data Bibliometrics. · Citation Count: 0 · Downloads ... [PDF]Automatic crack monitoring using photogrammetry and ... - ISR-Coimbra www2.isr.uc.pt/~helder/2013/measurement2012.pdf by J Valença - 2013 - Cited by 38 - Related articles Jul 28, 2011 - combining photogrammetry and image processing to min- imise user ... The new method for crack monitoring is composed by the following ... Image-based method for monitoring of crack opening on masonry and ... www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952013000300006 by AP Martins - 2013 - Related articles Jun 12, 2013 - A crack opening constant monitoring method is the use of the mechanical ... The digital photogrammetry techniques [21] and [22] are utilized to ... [PDF]MONITORING CRACK ORIGIN AND EVOLUTION AT CONCRETE ... www.isprs.org/proceedings/XXXV/congress/comm5/papers/638.pdf by W Benning - Cited by 29 - Related articles Controlling and monitoring of crack origin and evolution of concrete elements is an ... research of crack evolution at the surface of the element, photogrammetry is approved, because it allows .... A wide application area arises for the technique. Automatic crack monitoring using photogrammetry and image ... https://www.researchgate.net/.../236941932_Automatic_crack_monitoring_using_photo... In contrast, other photogrammetry and image processing techniques have been established to monitor pore and crack structure evolution [24,11]. In the present ... [PDF]Crack monitoring of RC beams using digital image analysis technique https://www.researchgate.net/...Crack_Monitoring...Technique/.../0046352120c6b55f... Dec 12, 2012 - for crack monitoring of RC members during test process. ... also Lee and Al-Mahaidi [1] utilized the photogrammetry technique to investigate ... [PDF]Monitoring of concrete members using photogrammetry and image ... epubs.scu.edu.au/cgi/viewcontent.cgi?article=1161&context=acmsm23 by D Dias-da-Costa - 2014 - Related articles 2a), whereas the opposite side was monitored using photogrammetry (see. Figs. ... 7a shows this technique applied on one of the upper-right cracks in. Fig. 4d.
