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Статті в журналах з теми "Scaled prestress bridge girders"
Song, Chaojie, Gang Zhang, Wei Hou, and Shuanhai He. "Performance of prestressed concrete box bridge girders under hydrocarbon fire exposure." Advances in Structural Engineering 23, no. 8 (January 3, 2020): 1521–33. http://dx.doi.org/10.1177/1369433219898102.
Повний текст джерелаJi, Wei, Kui Luo, and Jingwei Zhang. "Computation of Deflections for PC Box Girder Bridges with Corrugated Steel Webs considering the Effects of Shear Lag and Shear Deformation." Mathematical Problems in Engineering 2020 (July 18, 2020): 1–12. http://dx.doi.org/10.1155/2020/4282398.
Повний текст джерелаPark, Jae Hyung, Dong Soo Hong, Jeong Tae Kim, Ki Young Koo, Chung Bang Yun, and Gyuhae Park. "Wireless Sensing and Embedded Monitoring Algorithm for Damage Diagnosis in PSC Girders." Advances in Science and Technology 56 (September 2008): 420–25. http://dx.doi.org/10.4028/www.scientific.net/ast.56.420.
Повний текст джерелаLin, Jian Jun, Denis Beaulieu, and Mario Fafard. "Parametric study on noncomposite slab-on-girder bridges with enforced frictional contact." Canadian Journal of Civil Engineering 21, no. 2 (April 1, 1994): 237–50. http://dx.doi.org/10.1139/l94-027.
Повний текст джерелаBakht, Baidar, and Tharmalingham Tharmabala. "Steel–wood composite bridges and their static load response." Canadian Journal of Civil Engineering 14, no. 2 (April 1, 1987): 163–70. http://dx.doi.org/10.1139/l87-028.
Повний текст джерелаQiao, Lan, and Shao Wen Zhang. "Analysis of the Arrangement of Prestressed Steel in Web of Continuous Concrete Box-Girder Bridges." Applied Mechanics and Materials 587-589 (July 2014): 1359–63. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1359.
Повний текст джерелаNguyen, Hue Thi, Hiroshi Masuya, Tuan Minh Ha, Saiji Fukada, Daishin Hanaoka, Kazuhiro Kobayashi, and Eiji Koida. "Long-term Application of Carbon Fiber Composite Cable Tendon in the Prestressed Concrete Bridge-Shinmiya Bridge in Japan." MATEC Web of Conferences 206 (2018): 02011. http://dx.doi.org/10.1051/matecconf/201820602011.
Повний текст джерелаWang, Jianqun, Shenghua Tang, Hui Zheng, Cong Zhou, and Mingqiao Zhu. "Flexural Behavior of a 30-Meter Full-Scale Simply Supported Prestressed Concrete Box Girder." Applied Sciences 10, no. 9 (April 28, 2020): 3076. http://dx.doi.org/10.3390/app10093076.
Повний текст джерелаZhou, Yongjun, Yu Zhao, Hengying Yao, and Yuan Jing. "Full-Scale Experimental Investigation of the Static and Dynamic Stiffness of Prestressed Concrete Girders." Shock and Vibration 2019 (December 4, 2019): 1–13. http://dx.doi.org/10.1155/2019/7646094.
Повний текст джерелаKIM, SUNG-IL, and NAM-SIK KIM. "DYNAMIC PERFORMANCES OF A RAILWAY BRIDGE UNDER MOVING TRAIN LOAD USING EXPERIMENTAL MODAL PARAMETERS." International Journal of Structural Stability and Dynamics 10, no. 01 (March 2010): 91–109. http://dx.doi.org/10.1142/s0219455410003397.
Повний текст джерелаДисертації з теми "Scaled prestress bridge girders"
Osborn, Parry. "Ultimate Shear Capacity and Residual Prestress Force of Full-Scale, Forty-One-Year-Old Prestressed-Concrete Girders." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/591.
Повний текст джерелаCanfield, Scott Robinson. "Full Scale Testing of Prestressed, High Performance Concrete, Bridge Girders." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7131.
Повний текст джерелаStillings, Tyler W. "Load Distribution and Ultimate Strength of an Adjacent Precast, Prestressed Concrete Box Girder Bridge." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335463075.
Повний текст джерелаAngomas, Franklin B. "Behavior of Prestressed Concrete Bridge Girders." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/405.
Повний текст джерелаBolduc, Matthew W. "Full-Scale Testing of Pretensioned Concrete Girders with Partially Debonded Strands." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613748086228573.
Повний текст джерелаSathiraju, Venkata Sai Surya Praneeth. "Lateral Stability Analysis of Precast Prestressed Bridge Girders During All Phases of Construction." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1553252005286553.
Повний текст джерелаCross, Benjamin Thomas. "Structural Performance of High Strength Lightweight Concrete Pretensioned Bridge Girders." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26190.
Повний текст джерелаPh. D.
Duran, Heriberto C. "ASSESSMENT OF LIVE LOAD DEFLECTIONS IN A SIMPLE SPAN COMPOSITE BRIGDE WITH PRESTRESSED PRECAST CONCRETE GIRDERS." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/theses/1862.
Повний текст джерелаNeeli, Yeshwanth Sai. "Use of Photogrammetry Aided Damage Detection for Residual Strength Estimation of Corrosion Damaged Prestressed Concrete Bridge Girders." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99445.
Повний текст джерелаMaster of Science
Corrosion damage is a major concern for bridges as it reduces their load carrying capacity. Bridge failures in the past have been attributed to corrosion damage. The risk associated with corrosion damage caused failures increases as the infrastructure ages. Many bridges across the world built forty to fifty years ago are now in a deteriorated condition and need to be repaired and retrofitted. Visual inspections to identify damage or deterioration on a bridge are very important to assess the condition of the bridge and determine the need for repairing or for posting weight restrictions for the vehicles that use the bridge. These inspections require close physical access to the hard-to-reach areas of the bridge for physically measuring the damage which involves many resources in the form of experienced engineers, skilled labor, equipment, time, and money. The safety of the personnel involved in the inspections is also a major concern. Nowadays, a lot of research is being done in using Unmanned Aerial Vehicles (UAVs) like drones for bridge inspections and in using artificial intelligence for the detection of cracks on the images of concrete and steel members. Girders or beams in a bridge are the primary longitudinal load carrying members. Concrete inherently is weak in tension. To address this problem, High Strength steel reinforcement (called prestressing steel or prestressing strands) in prestressed concrete beams is pre-loaded with a tensile force before the application of any loads so that the regions which will experience tension under the service loads would be subjected to a pre-compression to improve the performance of the beam and delay cracking. Spalls are a type of corrosion damage on concrete members where portions of concrete fall off (section loss) due to corrosion in the steel reinforcement, exposing the reinforcement to the environment which leads to accelerated corrosion causing a loss of cross-sectional area and ultimately, a rupture in the steel. If the process of detecting the damage (cracks, spalls, exposed or severed reinforcement, etc.) is automated, the next logical step that would add great value would be, to quantify the effect of the damage detected on the load carrying capacity of the bridges. Using a quantified estimate of the remaining capacity of a bridge, determined after accounting for the corrosion damage, informed decisions can be made about the measures to be taken. This research proposes a stepwise framework to forge a link between a semi-automated visual inspection and residual capacity evaluation of actual prestressed concrete bridge girders obtained from two bridges that have been removed from service in Virginia due to extensive deterioration. 3D point clouds represent an object as a set of points on its surface in three dimensional space. These point clouds can be constructed either using laser scanning or using Photogrammetry from images of the girders captured with a digital camera. In this research, 3D point clouds are reconstructed from sequences of overlapping images of the girders using an approach called Structure from Motion (SfM) which locates matched pixels present between consecutive images in the 3D space. Crack-like features were automatically detected and highlighted on the images of the girders that were used to build the 3D point clouds using artificial intelligence (Neural Network). The images with cracks highlighted were applied as texture to the surface mesh on the point cloud to transfer the detail, color, and realism present in the images to the 3D model. Spalls were detected on 3D point clouds based on the orientation of the normals associated with the points with respect to the reference directions. Point clouds and textured meshes of the girders were scaled to real-world dimensions facilitating the measurement of any required dimension on the point clouds, eliminating the need for physical contact in condition assessment. Any cracks or spalls that went unidentified in the damage detection were visible on the textured meshes of the girders improving the performance of the approach. 3D textured mesh models of the girders overlaid with the detected cracks and spalls were used as 3D damage maps in residual strength estimation. Cross-sectional slices were extracted from the dense point clouds at various sections along the length of each girder. The slices were overlaid on the cross-section drawings of the girders, and the prestressing strands affected due to the corrosion damage were identified. They were reduced in cross-sectional area to account for the corrosion damage as per the recommendations of Naito, Jones, and Hodgson (2011) and were used in the calculation of the ultimate moment capacity of the girders using an approach called strain compatibility analysis. Estimated residual capacities were compared to the actual capacities of the girders found from destructive tests conducted by Al Rufaydah (2020). Comparisons are presented for the failure sections in these tests and the results were analyzed to evaluate the effectiveness of this framework. More research is to be done to determine the factors causing rupture in prestressing strands with different degrees of corrosion. This framework was found to give satisfactory estimates of the residual strength. Reduction in resources involved in current visual inspection practices and eliminating the need for physical access, make this approach worthwhile to be explored further to improve the output of each step in the proposed framework.
Garber, David Benjamin. "Effect of new prestress loss estimation procedure on precast, pretensioned bridge girders." Thesis, 2014. http://hdl.handle.net/2152/24899.
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Книги з теми "Scaled prestress bridge girders"
(US), National Research Council. Prestress Losses in Pretensioned High-Strength Concrete Bridge Girders (NCHRP report). Transportation Research Board National Resear, 2003.
Знайти повний текст джерелаЧастини книг з теми "Scaled prestress bridge girders"
Shi, Xuefei, Zhiquan Liu, and Zijie Zhou. "Full-Scale Model Test of Prestressed Segmental Precast Continuous Girder Bridge." In High Tech Concrete: Where Technology and Engineering Meet, 1263–71. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59471-2_146.
Повний текст джерелаTondolo, F., D. Sabia, B. Chiaia, A. Quattrone, P. Savino, F. Biondini, G. Rosati, and M. Anghileri. "Full-scale testing and analysis of 50-year old prestressed concrete bridge girders." In Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability, 1775–82. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003322641-220.
Повний текст джерелаBalaji Rao, K., and M. B. Anoop. "Polya Urn Model for Assessment of Prestress Loss in Prestressed Concrete (PSC) Girders in a Bridge System using Limited Monitoring Data." In Risk Based Technologies, 257–78. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-5796-1_14.
Повний текст джерелаТези доповідей конференцій з теми "Scaled prestress bridge girders"
Leyong, Wei, Yan Yonglun, Huang Liji, Ma Zeng, and Song Yingtong. "Overall Design of the Nanjing Jiangxinzhou Yangtze River Bridge." In IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/nanjing.2022.0157.
Повний текст джерелаLantsoght, Eva O. L., Cor van der Veen, Rutger Koekkoek, and Henk Sliedrecht. "Capacity of prestressed concrete bridge decks under fatigue loading." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.0313.
Повний текст джерелаCartiaux, François-Baptiste, Véronique Le Corvec, Jorge Semiao, Bernard Jacob, Franziska Schmidt, Alexandre Brouste, and Alain Ehrlacher. "Real condition experiment on a new bridge weigh-in-motion solution for the traffic assessment on road bridges." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1242.
Повний текст джерелаCartiaux, François-Baptiste, Véronique Le Corvec, Jorge Semiao, Bernard Jacob, Franziska Schmidt, Alexandre Brouste, and Alain Ehrlacher. "Real condition experiment on a new bridge weigh-in-motion solution for the traffic assessment on road bridges." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1242.
Повний текст джерелаAmir, Sana, Cor van der Veen, Joost C. Walraven, and Ane de Boer. "Bearing capacity of transversely prestressed concrete deck slabs." In IABSE Conference, Copenhagen 2018: Engineering the Past, to Meet the Needs of the Future. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/copenhagen.2018.298.
Повний текст джерелаPeng, Yuan-cheng. "Structural System Conception and Overall Design of a Mega Suspension Bridge with Four Main Cables." In IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/nanjing.2022.2081.
Повний текст джерелаKaka, Venkatesh Babu, and Shih-Ho Chao. "Investigation of Eliminating Prestress in Bridge Girders with the Use of Non-Prestressed Ultra-High-Performance Fiber-Reinforced Concrete Girders." In Structures Congress 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481332.006.
Повний текст джерелаGallardo, J., D. Garber, D. Deschenes, and O. Bayrak. "Simplified Element-Based Model to Estimate Strain-Related Prestress Loss in Pretensioned Simply Supported Bridge Girders." In 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479346.171.
Повний текст джерелаMeng, Jie, Xiaohu Chen, Xueshan Liu, Bowen Liang, and Haoxiang Huang. "Advantages of New Type of Steel Box Coarse Aggregate Reactive Powder Concrete Composite Continuous Beam Bridge." In IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and Harmonisation. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/nanjing.2022.0461.
Повний текст джерелаYaqub, Muhammad Arslan, Stijn Matthys, and Christoph Czaderski. "Potential of memory steel reinforcement for shear strengthening of concrete bridge girders with I-sections." In IABSE Symposium, Prague 2022: Challenges for Existing and Oncoming Structures. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2022. http://dx.doi.org/10.2749/prague.2022.1180.
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