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Journal articles on the topic 'Anchorage test'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Claro, Cristiane Aparecida de Assis, Rosana Villela Chagas, Ana Christina Elias Claro Neves, and Laís Regiane da Silva-Concílio. "Comparative photoelastic study of dental and skeletal anchorages in the canine retraction." Dental Press Journal of Orthodontics 19, no. 1 (2014): 100–105. http://dx.doi.org/10.1590/2176-9451.19.1.100-105.oar.

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OBJECTIVE: To compare dental and skeletal anchorages in mandibular canine retraction by means of a stress distribution analysis. METHODS: A photoelastic model was produced from second molar to canine, without the first premolar, and mandibular canine retraction was simulated by a rubber band tied to two types of anchorage: dental anchorage, in the first molar attached to adjacent teeth, and skeletal anchorage with a hook simulating the mini-implant. The forces were applied 10 times and observed in a circular polariscope. The stresses located in the mandibular canine were recorded in 7 regions.

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2

Long, Zhe, Zhi-xin Yan, and Chun-bo Liu. "Shear Effects on the Anchorage Interfaces and Seismic Responses of a Rock Slope Containing a Weak Layer under Seismic Action." Mathematical Problems in Engineering 2020 (April 30, 2020): 1–11. http://dx.doi.org/10.1155/2020/1424167.

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The shear effects on the anchorage interfaces under seismic action is a key problem requiring urgent investigation in the field of rock and soil anchorages. In this paper, the model of rock slope with a weak layer was constructed by pouring, and the large-scale shaking table model test was completed. The shear strain on the anchorage interfaces and the acceleration of the slope were collected using built measurement systems. The shear effects on the two anchorage interfaces (a bolt-grout interface and a grout-rock interface) and seismic responses of the slope under seismic action were investig

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3

Wei, Xing, and Jun Li. "Theoretical and Experimental Study on Cable-to-Irder Anchorages in Long-Span Cable-Stayed Bridges with Steel Box Girder." Advanced Materials Research 255-260 (May 2011): 1315–18. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1315.

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Cable anchorages are among the most important elements in a cable-stayed bridge, which are complex in structure and bear heavy load. There are three main forms in anchorage zone between girder and cable in modern long-span cable-stayed bridge with steel box girder, which are ear-plate form, anchor-box form and anchor-plate form. Combining theoretical analysis with the static test, static behavior and stress transfer pathway of three typical cable-to-girder anchorages were analyzed, and the differences of stress distribution and stress concentration among anchorage zones were pointed out. Based

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4

Keum, Moon Seoung, Jae Yoon Kang, Jong Sup Park, and Woo Tai Jung. "Performance Test of Swage Anchorage According to the Insert of CFRP Tendon." Key Engineering Materials 730 (February 2017): 452–56. http://dx.doi.org/10.4028/www.scientific.net/kem.730.452.

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Despite of the numerous advantages offered by the CFRP tendon, there are still problems to be solved. Among them, finding an effective anchoring method considering the material properties of CFRP constitutes a typically pending problem. Being an orthotropic material, the CFRP tendon presents risk of breakage under forces acting perpendicularly to the direction of the fibers. This implies that a new type of anchor should be developed for the CFRP tendon since the anchorages used for conventional steel strands cannot be readily applied. Moreover, following the growing interest given to the CFRP

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5

Zhao, Lin, Xian Ming Zeng, Shi Min Li, and Da Lu Lin. "Field Test Study of the Blast-Resistance Performance of Optimal Composite Anchorage Structure." Advanced Materials Research 250-253 (May 2011): 1474–77. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.1474.

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This paper introduced the comparison test of new optimal composite anchorage structure and single anchorage structure. The measured results show that the particle acceleration of single anchorage structure is 2.22 times higher than that of the optimal composite anchorage structure. The dynamic strain of the former is 5.3~4.5 times higher than that of the latter. The blast-resistance of the optimal composite anchorage structure is 5.10 times higher than that of the single anchorage structure. Under the limit damage condition, the former is 4.13~3.40 higher than that of the latter. The optimal c

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6

McKay, K. S., and M. A. Erki. "Grouted anchorages for aramid fibre reinforced plastic prestressing tendons." Canadian Journal of Civil Engineering 20, no. 6 (1993): 1065–69. http://dx.doi.org/10.1139/l93-137.

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Nonmetallic prestressing tendons, made of fibre-reinforced composite materials, are being proposed as alternatives to steel prestressing tendons for bridges and parking garage structures, where corrosion is the leading cause of structural deterioration. One type of commercially available nonmetallic tendons is made of pultruded aramid fibres. One of the main problems for these tendons, which is common to all nonmetallic tendons, is that the high ratio of the axial to lateral strength of fibre-reinforced materials requires special attention to the type of anchorage used. For the aramid tendon,

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7

Pham, Quang-Quang, Ngoc-Loi Dang, and Jeong-Tae Kim. "Smart PZT-Embedded Sensors for Impedance Monitoring in Prestressed Concrete Anchorage." Sensors 21, no. 23 (2021): 7918. http://dx.doi.org/10.3390/s21237918.

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This study investigates the feasibility evaluation of smart PZT-embedded sensors for impedance-based damage monitoring in prestressed concrete (PSC) anchorages. Firstly, the concept of impedance-based damage monitoring for the concrete anchorage is concisely introduced. Secondly, a prototype design of PZT-embedded rebar and aggregate (so-called smart rebar–aggregate) is chosen to sensitively acquire impedance responses-induced local structural damage in anchorage members. Thirdly, an axially loaded concrete cylinder embedded with the smart rebar–aggregate is numerically and experimentally anal

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8

Kim, Min Sook, and Young Hak Lee. "Load Carrying and Hydrostatic Performances of Innovative Encapsulated Anchorage System for Unbonded Single Strand." Advances in Civil Engineering 2019 (August 25, 2019): 1–16. http://dx.doi.org/10.1155/2019/7812623.

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A new anchorage system is proposed having a circular bearing plate and curvature between the bearing plate and the anchor head to improve stress concentration. A lid with a screw instead of the grouting method is also proposed to prevent moisture penetration. The details of the anchorage device have been chosen to reduce stress concentration based on the finite element analysis. Static load test, load transfer test, and hydrostatic test of fabricated devices were carried out according to ETAG 013 to evaluate the proposed design. As results, the anchorage slip and stabilization satisfied the re

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9

Manea, A. M., M. D. Iozsa, C. Stan, and A. Ioniţă. "Finite element analysis for testing safety-belt anchorages." IOP Conference Series: Materials Science and Engineering 1235, no. 1 (2022): 012048. http://dx.doi.org/10.1088/1757-899x/1235/1/012048.

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Abstract The passive safety of the vehicle is ensured by designing optimized restraint systems to protect the occupants during the accident. The safety-belts have the role of restraining the occupants of the car on the seat during an impact or in the event of a rollover. Their retention prevents or minimizes the impact between the occupants and the interior components of the passenger compartment. Two simplified models of seat structures are proposed to determine the strength of the safety-belts anchorages. The test of the anchorage for safety-belts of the two seat models is performed in accor

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10

He, Xinrong, Guowei Li, Sidi Kabba Bakarr, Jiantao Wu, and Wei Yu. "Comparative Test on the Bond Damage of Steel and GFRP Bars Reinforcing Soft Rock Slopes." Applied Sciences 11, no. 23 (2021): 11161. http://dx.doi.org/10.3390/app112311161.

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Soft rock slopes were anchored with traditional steel bars and new Glass Fibre Reinforced Polymer (GFRP) bars. The difference in the anchorage performance of the two kinds of anchorage elements in soft rock and expansive soil was studied by an in-situ test. The results show that cyclic load can aggravate the bond damage of the interface between grouting body and both kinds of bars used in soft rock. Compared with the number of cyclic loads applied, the previous maximum load is the main factor that influences the bond damage of the anchorage bar. Under constant loading, the interface bond behav

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11

Huang, Bo, Anyang Wu, Shuang Zhang, et al. "Design and Mechanical Properties of Flat Anchorage Limit Plate." Applied Sciences 13, no. 9 (2023): 5638. http://dx.doi.org/10.3390/app13095638.

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To address the safety problems caused by clips being squeezed by jacks and wire slipping in the tensioning process of flat anchorages, we designed a limit plate to be used with a flat anchorage, and we studied the mechanical properties of the anchorage system after adding the limit plate through numerical simulation. Lastly, the limit plate was created and applied in a practical engineering scenario to test its safety performance. The results showed that the newly designed limit plate changed the butt position of the jack during tension, increased the hole distance, and hid the clips in the ho

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12

Li, Shao Jun, Xia Ting Feng, and Bing Rui Chen. "Stress Testing of Individual Steel Strands in a Multiple-Cable Single Borehole Anchorage for Geotechnical Engineering." Key Engineering Materials 340-341 (June 2007): 1351–56. http://dx.doi.org/10.4028/www.scientific.net/kem.340-341.1351.

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Multiple-cable single borehole anchorages are widely used in China, accepted and regarded as a very effective method for slope protection, landslide remediation and foundation ditch support. This paper presents a new method for testing tensional stresses of individual steel strands within anchor cables in single boreholes. A rig has been designed to permit testing of cables within a single borehole, including two special features: a metal plate that distributes tension between strands of a cable and a sensing device that measures the stress in each individual strand. The feasibility of the met

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13

Mu, Jian Chun, Hui Feng Xi, Yong He Wu, Sheng Qiang Li, and Guo Hui Yang. "Numerical Simulation Analysis of Pullout Test of Planting Steel - A New Reinforcement Technique." Advanced Materials Research 163-167 (December 2010): 3739–44. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3739.

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The paper proposed a new reinforcement technique-planting steel technique. By numerical simulation analysis of planting steel, the load – slip curve, the load – stress curve and others were obtained. Meanwhile, ultimate bearing capacity of angle was calculated, and the ultimate bearing capacities with the same model at different anchorage depths were compared. With the anchorage depth increased, the ultimate bearing capacity increased too. But while the anchorage depth increased to a certain value, the ultimate bearing capacity no longer increased. All these provided a theoretical basis for th

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14

Shenghua, Zhang, and Huang Ying. "Performance Test of OVM Anchorage and Coupling." Prestress Technology 3, no. 05 (1999): 2–3. http://dx.doi.org/10.59238/j.pt.1999.05.001.

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15

Zhang, Si Feng, Long Zhang, Lin Li, and Xiu Guang Song. "Study on the Interfacial Shear Stress Distribution Characteristics of Geotechnical Prestressed Anchorage Structure." Advanced Materials Research 919-921 (April 2014): 773–76. http://dx.doi.org/10.4028/www.scientific.net/amr.919-921.773.

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The ultimate bearing capacity of prestressed anchorage structure is directly related to the interfacial shear stress distribution characteristics of the inner anchorage section. Firstly, the axial stress distribution characteristics of the inner anchorage section for the geotechnical prestressed anchorage structure under tensile load are further studied by indoor similarity model test, and the corresponding fitting formula is established. Based on this result and the force equilibrium conditions of rod body’s micro-segment, the rod body interfacial shear stress distribution characteristics for

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16

Pokorný, P., J. Čech, P. Tej, and M. Vokáč. "The influence of total reinforcement anchorage length on misinterpretation of the impact of hot-dip galvanised steel corrosion on its bond strength with concrete." Koroze a ochrana materialu 60, no. 1 (2016): 13–20. http://dx.doi.org/10.1515/kom-2016-0003.

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Abstract To begin with, the intorduction of this paper summarises literature sources that wrongly interpret results of the bond strength between hot-dip galvanised reinforcements and concrete. The influence of the total reinforcement anchorage length on the bond strength results assessment was studied in detail. The numeric analysis of beam models with various testing anchorage lengths (the analysis input data comprised the results of previous bond strength tests carried out in a laboratory) unambiguously confirmed that when the bond strength between concrete and hot-dip galvanised reinforceme

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17

Choi, Hyun Ki. "The Effect of Anchorage Strength with Anchorage Capacity in Flat Plate." Key Engineering Materials 627 (September 2014): 245–48. http://dx.doi.org/10.4028/www.scientific.net/kem.627.245.

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The punching shear on the flat plate slab-column connection can bring about the reason of the brittle punching shear failure which may result of collapsing the whole structure. From the development of residential flat plate system, the shear reinforcement is developed for preventing the punching shear. This study proposed 3 reinforcements that are increased to bond capacity using lateral bar, the structure test is performed. As performed test result, because slabs not keep enough bond length, slab is failed before shear reinforcement's yield strength duo to anchorage of slip. According to resu

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18

Hara, Koichiro, Kenji Yoshitake, Tomohisa Ohta, and Eiichi Takashima. "Development and evaluation of mechanical anchorage rebar for joints between precast concrete slabs." MATEC Web of Conferences 409 (2025): 07001. https://doi.org/10.1051/matecconf/202540907001.

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The increasing deterioration of ageing reinforced concrete road bridge slabs in Japan has necessitated their replacement to ensure user safety. Currently, various rationalized joints using mechanical anchorage rebars have been developed, but most rely on rebar with post-installed anchorage, with few utilizing integrally formed anchorage zones for higher fatigue durability. In this study, a mechanical anchorage rebar with an anchorage zone integrally formed by high-frequency induction heating was developed. To verify its applicability to the joints between precast concrete slabs, the mechanical

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19

K, Padmanabham, and Rambabu K. "Static Pullout Tests on Retrofitted Anchorage System in Concrete Using Supplementary Reinforcement." Saudi Journal of Civil Engineering 6, no. 4 (2022): 79–94. http://dx.doi.org/10.36348/sjce.2022.v06i04.004.

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This paper presents experimental results of retrofitted anchorage system of structural concrete by using Post-Installation of Supplementary Anchorage (PISA) as a implicit strengthening measure and to improve the nonlinear performance of conventional anchorage system in hardened concrete. A total sixty specimens of M25 grade concrete (150x150x300mm) with two different size of rebar anchorage of 12mm, 16mm and five different configuration of conventional anchorage system was retrofitted by PISA technique is verified under direct tension pullout quasi static loads. The configuration of anchorage

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K, Padmanabham, and Rambabu K. "Static Pullout Tests on Retrofitted Anchorage System in Concrete Using Supplementary Reinforcement." Saudi Journal of Civil Engineering 6, no. 4 (2022): 79–94. http://dx.doi.org/10.36348/sjce.2022.v06i04.004.

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This paper presents experimental results of retrofitted anchorage system of structural concrete by using Post-Installation of Supplementary Anchorage (PISA) as a implicit strengthening measure and to improve the nonlinear performance of conventional anchorage system in hardened concrete. A total sixty specimens of M25 grade concrete (150x150x300mm) with two different size of rebar anchorage of 12mm, 16mm and five different configuration of conventional anchorage system was retrofitted by PISA technique is verified under direct tension pullout quasi static loads. The configuration of anchorage

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21

Zhou, Xin Gang, Hua Fang, Jun Yin Yan, and Peng Zhu. "The Study on Bond and Anchorage Behavior of RC Flexural Members with Inorganic Adhesive Powder." Applied Mechanics and Materials 166-169 (May 2012): 1696–701. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.1696.

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To study the anchorage performance of the inorganic post-installed RC flexural members in flexural test, this paper simulates the stress state of the inorganic post-installed RC flexural members in practical projects. Through cyclic loading test, the anchorage performance of the inorganic post-installed RC flexural members in the bending tensile conditions is checked. This paper studies the anchorage performance of the post-installed steel at the state of bending tension, such as: adhesion stress, bond-slip relationship, the load carrying capacity, deformation behavior of the flexural member,

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22

Zhang, Qing Hua, Chuang Cui, Qiao Li, and Bing Bai. "Study on Fatigue Features of Box-Shaped Cable-Girder Anchorage for Cable-Stayed Bridges with Steel Box Girders by Model Test." Applied Mechanics and Materials 423-426 (September 2013): 1259–67. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1259.

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With heavy stress concentration, the fatigue of cable-girder anchorage is one of the most important issues to be considered for the design of long-span cable-stayed bridges. The cable-girder anchorage of the Sutong Bridge taken as subject investigated, the design of experiment model, the determination of fatigue load range and the mechanical features of main components are investigated. The fatigue safety of the cable-girder anchorage in design life and limit life are verified by model test. The results indicate that the accurate simulation of mechanical characteristics and boundary condition

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23

Yao, Guowen, Xuanbo He, Hong Long, Jiangshan Lu, and Qianling Wang. "Corrosion Damage Evolution Study of the Offshore Cable-Stayed Bridge Anchorage System Based on Accelerated Corrosion Test." Journal of Marine Science and Engineering 11, no. 5 (2023): 896. http://dx.doi.org/10.3390/jmse11050896.

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The cable-stayed bridge anchorage system is prone to serious corrosion problems in the offshore environment, threatening its service safety. Based on the copper accelerated salt spray (CASS) test, the anchorage system was subjected to accelerated corrosion and then dissected along the axial direction to study the corrosion damage evolution of the internal structure. This revealed the evolution of corrosion damage in the anchorage system of offshore cable-stayed bridges. The results show that in the offshore environment, a large number of corrosion factors enter the interior of the cable anchor

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24

QARIZADA, Abdul Majeed, and Yusuf SÜMER. "EFFECT OF MECHANICAL ANCHORAGE IN HEAT TREATED BEAMS RETROFITTED WITH CFRP." INTERNATIONAL REFEREED JOURNAL OF ENGINEERING AND SCIENCES, no. 15 (2021): 0. http://dx.doi.org/10.17366/uhmfd.2021.15.8.

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Aim: Locally deformed beams and girders could be temporarily repaired by heat treatment but this practice causes the decrease in the load capacity of the member. Besides, fiber reinforced polymer strips could be used to gain a permanent retrofitting solution for the deformed elements. Method: In this study initially the behavior of heat treated IPE-80 beam strengthened by Carbon Fiber Reinforced Polymer (CFRP) strips bonded with epoxy is observed. This practice causes a significant increase in the load capacity but it is also being observed that epoxy scatters earlier, which does not allow the

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Li, Haifeng, Kun Wang, Zizhang Dong, and Tao Liu. "Study on Anchorage Performance of New High-Strength Fast Anchorage Agent." Applied Sciences 12, no. 17 (2022): 8494. http://dx.doi.org/10.3390/app12178494.

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To achieve the efficient, rapid construction of prestressed anchor cables, in this study, through an indoor pull-out test and field basic test, we investigated the mechanical behavior, expansion, drawing performance and bond properties of a new type of high-strength, fast anchorage agent. We analyzed the influence of the water material ratio and curing time on its performance and determined the corresponding construction. It was found that the new anchoring agent could be effectively applied in field construction and achieved a compressive strength of 30 MPa within 30 h. Moreover, during the s

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Zhang, Ling Mei. "Study on the Full Scale Model Test for Pylon Segment of Cable-Stayed Bridge." Applied Mechanics and Materials 361-363 (August 2013): 1362–65. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1362.

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Anchorage zone of tower is a key part of cable-stayed bridge. Some factors such as powerful local concentrated forces, anchor forces from prestressed steels and weaken factors from hole make this area in complicated states. Analysis of strength performance at the anchorage zone of cable-stayed bridge tower has been attracted attention in bridge engineering. Full-scale model test and force analysis was carried out when a typical cable-stayed bridge was selected as the research object. Three stress states of anchorage zone are consider, that is under prestressing, under cable forces in completio

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27

Wang, Haitao, Minghua Cui, Kun Ren, and Haoyu Sun. "Nonlinear Finite Element Analysis of Bonding Behavior of Corroded Mortar Anchor under Dynamic Load." Electronic Journal of Structural Engineering 22, no. 3 (2022): 46–55. http://dx.doi.org/10.56748/ejse.223273.

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The connection between reinforcement and mortar was established through the surface-to-surface contact method. The transient dynamic Full method was adopted for dynamic loading solution. The numerical analysis model for the bonding performance of corroded mortar bolts under dynamic load was established. The numerical analysis results were compared with the test results for verification. The bond properties of the anchorage interface under the conditions of different mortar protection thickness, anchorage length and corrosion rate were analyzed. The results show that the numerical simulation re

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Wang, Fengjiao, Xiaoyu Bai, Zekun Wu, Nan Yan, Dongshuai Hou, and Junwei Liu. "Field pullout test and anchorage length calculation for external anchorage of GFRP anti-floating anchors." Structures 70 (December 2024): 107636. http://dx.doi.org/10.1016/j.istruc.2024.107636.

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Zhou, Yiqun, Jianwei Yang, Chenyang Zhang, Dingyi Li, and Bin Hu. "Selection of an Optimum Anchoring Method of Composite Rock Stratum Based on Anchor Bolt Support Prestress Field." Applied Sciences 15, no. 13 (2025): 6990. https://doi.org/10.3390/app15136990.

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In order to make the anchor bolt support prestress field fully diffuse in the composite rock stratum, improve the overall bearing capacity of surrounding rock, and give full play to the role of active support of the anchor bolt, a self-made 1:1-scale composite rock stratum similarity simulation test bed was used to compare and analyze the distribution of the anchor bolt support prestress field using different anchoring surrounding rock lithology and anchorage lengths, and the principle for optimum selection of anchoring parameters of composite rock stratum was proposed based on the test result

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Mortezai, Omid, Zeynab Shalli, Maryam Tofangchiha, et al. "Effect of premolar extraction and anchorage type for orthodontic space closure on upper airway dimensions and position of hyoid bone in adults: a retrospective cephalometric assessment." PeerJ 11 (October 23, 2023): e15960. http://dx.doi.org/10.7717/peerj.15960.

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Background This study aimed to assess the effect of premolar extraction and anchorage type for orthodontic space closure on upper airway dimensions and position of hyoid bone in adults by cephalometric assessment. Methods This retrospective study was conducted on 142 cephalograms of patients who underwent orthodontic treatment with premolar extraction in four groups of (I) 40 class I patients with bimaxillary protrusion and maximum anchorage, (II) 40 class I patients with moderate crowding and anchorage, (III) 40 class II patients with maximum anchorage, and (IV) 22 skeletal class III patients

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Shin, Sung Woo, Kang Sik Kim, and Kwang Soo Lee. "Shear Characteristics of Large Anchorage System." Applied Mechanics and Materials 284-287 (January 2013): 1273–79. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1273.

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Large anchorage system with anchor bolt exceeding 50mm of bolt diameter or effective embedment depth deeper than 635mm is usually used in nuclear concrete structure, but shear design criteria for large anchorage system is not clearly addressed by ACI 349-06 Appendix B (ACI 349, 2006). Therefore, to find out the shear characteristics of large anchorage system, 24 prototype specimens were manufactured and tested by ASTM E 488. Test variables are anchor bolt diameter( do= 63.5, 76.2, 88.9mm), effective embedment depth ( hef= 635, 762mm), and edge distance( c1=381, 508, 762mm). Concrete compressiv

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Zhuge, Ping, Su Wei Hou, Shi Zhong Qiang, and Ming Hu Liu. "Theoretical Assessment of FRP Tendon Wedge Anchorage System." Advanced Materials Research 168-170 (December 2010): 1006–9. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.1006.

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In order to improve designing and well understanding the working mechanism for fiber reinforced polymer (FRP) tendon wedge anchorage system (FWAS), a theory for solving the anchorage system was presented in this paper. A designing guidelines of anchorage system was established. The theory was checked by comparing the analytical and test results of a Carbon FRP tendon anchrage system. Effect of presetting load and friction coefficient of sleeve-FRP tendon interface on anchorage performance were evaluated by the theory. The results show that, The theory was proved to be correct, it can be used t

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Luo, Xinyang, Ping Cao, Taoying Liu, et al. "Mechanical Behaviour of Anchored Rock Containing Weak Interlayer under Uniaxial Compression: Laboratory Test and Coupled DEM–FEM Simulation." Minerals 12, no. 4 (2022): 492. http://dx.doi.org/10.3390/min12040492.

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The reason for instability in a rock mass with a weak interlayer is not only the sliding failure of the rock interlayer structural plane but also the tip crack propagation caused by the stress concentration at the tip of the interlayer. In this study, a uniaxial compression test of an anchored rock mass with a weak interlayer was carried out to determine the influence of the anchorage on the failure pattern and the strength of samples with different interlayer dip angles. In addition, the coupled DEM–FEM numerical simulation method was used to study the internal stress evolution of the sample

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Yang, Rihua, Yiming Yang, Xuhui Zhang, and Xinzhong Wang. "Experimental Study on Secondary Anchorage Bond Performance of Residual Stress after Corrosion Fracture at Ends of Prestressed Steel Strands." Materials 16, no. 23 (2023): 7441. http://dx.doi.org/10.3390/ma16237441.

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In order to explore the secondary bond anchorage performance between prestressed tendons and concrete after the fracture of steel strands in post-tensioned, prestressed concrete (PPC) beams, a total of seven post-tensioned, prestressed concrete specimens with a size of 3 × 7ϕ15.2 mm were constructed firstly, and the steel strands at the anchorage end were subjected to corrosion fracture. Then, the pull-out test of the specimens was conducted to explore the secondary anchorage bond mechanism of the residual stress of prestressed tendons experiencing local fracture. Moreover, the influences of f

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Sun, Shu Hong, Xue Song Zhang, and An Bang Gu. "Study and Model Test on the Anchorage Area for Chongqing Jiayue Bridge’s PC Box Girder." Advanced Materials Research 243-249 (May 2011): 1597–604. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.1597.

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The research work is described about the numerical analysis and reduced scale prototype model test of Chongqing Jiayue Bridge’s PC beam, which has some special structure details. The structure’s practicality of the PC box girder’s anchorage is demonstrated through computing, at the same time, the security of the anchorage undertaking kiloton force is experimented by test. Some conclusions and suggestions are drowning through such research work which are helpful to design and construction.

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Zhang, Si Feng, Xiu Guang Song, and Yan Mei Li. "Experiment Study on the Durability of Geotechnical Prestressed Anchorage Structure under Cyclic Loading." Applied Mechanics and Materials 90-93 (September 2011): 201–7. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.201.

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Based on the analysis of the pretension force influence factors for geotechnical prestressed anchorage cables that are used in a practical engineering, the cyclic loading characteristics of prestressed force long-term variation is revealed, and the conception of large and small cycles of prestressed force variety are also put forward. Based on these analysis, a device for the fatigue failure test and the corresponding test methods are manufactured and developed to analyze the durability problem of the inner bond section of prestressed anchorage structure under repetitive loading and cyclic loa

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K, Padmanabham, and Rambabu K. "Experiment Program on Retrofitted Anchorage System under Impact Loads." Saudi Journal of Civil Engineering 6, no. 3 (2022): 26–39. http://dx.doi.org/10.36348/sjce.2022.v06i03.001.

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This study aims to evaluate the strength and performance of retrofitted anchorage system in concrete under impact loads. A novel technique called “Post Installation of Supplementary Anchorage” (PISA) is introduced to retrofit five different configurations of rebar anchorage system used in concrete. The configurations of rebar are straight bar (A1), 90 degree bend (A2),180 degree hook (A3), single head (A4) and double head (A5) bars which was retrofitted by supplementary steel reinforcement. Direct tension pullout loads are applied on 60 anchorage specimens (each 30 of conventional and retrofit

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Jung, Hyung Suk, Hyun Ki Choi, Chang Sik Choi, and Joo Hong Chung. "Structural Performance of Exterior Beam-Column Joints with Large Diameter Headed Bars." Key Engineering Materials 754 (September 2017): 337–40. http://dx.doi.org/10.4028/www.scientific.net/kem.754.337.

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Generally, a conventional standard hook is used for the reinforcement's anchorage. However, this results in steel congestion, and it makes fabrication and construction difficult. Using a headed bar offers a potential solution for these problems and may also ease fabrication, construction and concrete placement. But, in current design code of the headed bar, it had limitation about the yield strength and the diameter of rebar etc. It hard to use the large diameter headed bar in the reinforced concrete structure. This paper presents the cyclic responses of four reinforced concrete exterior beam-

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Sun, Yamin, Kuihua Mei, Shengjiang Sun, Tao Wang, and Xiang Ren. "Optimal Design of a Novel Composite Anchorage for Carbon-Fiber-Reinforced Polymer (CFRP) Tendons." Polymers 14, no. 10 (2022): 2048. http://dx.doi.org/10.3390/polym14102048.

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In this study, we proposed a novel composite anchorage that considers the anchoring performance and dimension simultaneously. The design concept of this composite anchorage was first introduced, followed by comparison with the traditional inner-cone bond-type anchorage and traditional composite anchorage through theoretical and experimental methods. Then, a parametric study was conducted to determine the influence of different parameters on the anchoring performance, and the optimal design parameters were recommended according to the finite element (FE) and test results. Finally, the practicab

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Li, Fangyuan, Wenhao Li, Shaohui Lu, and Yin Shen. "Development of a Prestressing CFRP Laminate Anchorage System and Bridge Strengthening Application." Advances in Materials Science and Engineering 2019 (September 30, 2019): 1–9. http://dx.doi.org/10.1155/2019/3503898.

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For prestressed carbon fiber reinforced polymer (CFRP) tendon anchorage systems to become well established and used on a large scale, practical requirements for structure strengthening may be met by performing a relatively easy anchorage technique using prestressing CFRP laminates. From testing performed on a clip-type CFRP laminate anchorage system developed in our research group, it was revealed that this system could achieve the anchorage efficiency and the relaxation met the requirement of specification. Furthermore, the relevant indices of the anchorage system met the prestressed system s

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Liu, Xiaohu, Zhishu Yao, Weipei Xue, and Xiang Li. "Development, Performance, and Microscopic Analysis of New Anchorage Agent with Heat Resistance, High Strength, and Full Length." Advances in Materials Science and Engineering 2019 (April 24, 2019): 1–9. http://dx.doi.org/10.1155/2019/4239486.

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To solve the difficult problems of failure of pretensioned bolt supports under high ground pressure and temperature, a new kind of anchorage agent with excellent performance is developed. First, the selection and compounding of raw materials were conducted. The new anchorage agent was obtained by modifying the PET resin by mixing with a phenolic epoxy vinyl ester resin (FX-470 resin) and adding a KH-570 silane coupling agent. Then, the viscosity, thermal stability, compressive strength under different temperatures, and anchorage capacity of the new anchorage agent were tested. Moreover, the be

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Pei, Xiao, Ying Zhu, Qian Chen, Chengshun Zhou, and Li Zeng. "Load transfer test of prestressed reinforcement anchorage zone -- Discussion on safety of prestressed anchorage zone II." Prestress Technology 16, no. 02 (2012): 14–20. http://dx.doi.org/10.59238/j.pt.2012.02.004.

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Fang, Chang Yu, and Yao Ting Zhang. "Model Test and Structural Behavior Analysis for Cable-Pylon Anchorage Zone of Cable-Stayed Bridge." Advanced Materials Research 368-373 (October 2011): 495–500. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.495.

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In long-span cable-stay bridges, anchorage zone of cable-pylon is a key part to transfer cable force to pylon. Because of local concentrated force, irregular pylon section and complicated construction measures, a general mechanical analysis is unable to reflect actual stress distribution and working performance of anchorage zone. Based on Maling River Bridge in Guizhou province, China, clear finite element analysis and reliable full-scale model test for cable-pylon anchorage zone segment were carried out. Not only were design of model test and loading program introduced, but also test content

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Zha, Zhi Xiang, Wei Peng, and Xi La Liu. "Experimental and Numerical Simulation Study on the Shear Stress for the Interfaces of Anchorage Type Structures." Advanced Materials Research 163-167 (December 2010): 1325–28. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1325.

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A laboratory test of anchor pull-out model under plane-strain condition on the shear stress transfer for the interfaces of anchorage type structures was carried out in this paper. The results of test were verified by corresponding numerical simulation model. It was proved that the pull-out experimental model under plane-strain condition was an effective model used to research the working mechanism of anchorage structure.

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Zheng, Yi, Jian Zhang Chen, and Ke Chao Zhang. "Research on Transverse Prestress Mechanical Properties Experiment of PC Box Girder." Advanced Materials Research 912-914 (April 2014): 757–60. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.757.

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In view of the PC box girder transverse prestress tendon, the factors and the development of tension prestress performance affecting factors were analyzed. Experiment program of prestress tendon performance was designed. Test for steel wire and anchorage of transverse tendon were carried out. The performance data of steel strand and anchorage were tested. The transverse prestress steel beam pattern based on work performance test was analyzed.

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Detter, Andreas, Steffen Rust, and Oskars Krišāns. "Experimental Test of Non-Destructive Methods to Assess the Anchorage of Trees." Forests 14, no. 3 (2023): 533. http://dx.doi.org/10.3390/f14030533.

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More than 280 trees were uprooted in winching tests monitored by high resolution inclinometers at the base of the trees and a forcemeter mounted in the winching line. The dataset comprises trees growing on different urban and forest sites in Europe and North America and mainly consists of fifteen widespread tree species. For the first time, a large number of trees were measured non-destructively prior to uprooting failure, as commonly practiced by consulting arborists in static load tests. With these tests, the bending moment required to cause 0.25° root plate inclination (rotational stiffness

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Clemente, Roberta, Luca Contardo, Christian Greco, Roberto Di Lenarda, and Giuseppe Perinetti. "Class III Treatment with Skeletal and Dental Anchorage: A Review of Comparative Effects." BioMed Research International 2018 (July 2, 2018): 1–10. http://dx.doi.org/10.1155/2018/7946019.

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Objectives. This review addresses the comparative effects of skeletal anchored maxillary protraction (MP) versus dental anchored MP. Materials and Methods. The studies retrieved had to have both test and control groups treated by the use of a facemask with or without the use of skeletal anchorage though either (palatal/buccal) maxillary or mandibular miniscrews/miniplates, respectively. Results. Nine articles were included. Dentoalveolar changes were seen in all the studies. In particular, a significant proclination of the upper incisors was documented in the group treated with a dental anchor

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Yu, Xiao Lin, Bu Yu Jia, Wei Feng Wang, and Quan Sheng Yan. "Full-Scale Model Test for Anchorage Zone of Pylon of Cable-Stayed Bridge." Applied Mechanics and Materials 238 (November 2012): 728–32. http://dx.doi.org/10.4028/www.scientific.net/amm.238.728.

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In this paper, the construction technology for main pylon of cable-stayed bridge is researched through test of full-scale model of anchorage zone of pylon of Guangzhou Bridge. Stress distribution and deformation condition of model under prestressed tendons and cable force are analyzed. Numerical simulation on this anchorage zone model is carried out. By comparing FEM results to the test results, some important conclusions are drawn out and give some advices to the optimum design of the bridge pylon. Parts of the achievements have been applied to actual bridge work and obtained successful engin

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Zhang, Burong, and Brahim Benmokrane. "Design and evaluation of a new bond-type anchorage system for fiber reinforced polymer tendons." Canadian Journal of Civil Engineering 31, no. 1 (2004): 14–26. http://dx.doi.org/10.1139/l03-062.

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Corrosion resistance, high strength, and advantageous strength-to-weight ratio enable fiber reinforced polymers (FRPs) to have substantial potential to replace steel tendons in prestressed applications. One of the main technical obstacles to wide use of FRPs in the construction industry is the methodology to anchor FRP tendons to achieve their full strength. High tensile to compression and shear strength ratios make it necessary to develop a new anchorage design concept for FRP tendons. This paper gives a literature review of bond-type anchorage systems and the mechanics of stress transfer by

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Zhang, Si Feng, Jian Xiang Feng, Rui Han, and Zhi Gang Sun. "Experimental Study on the Interface Properties of Geotechnical Anchorage Bolt under Cyclic Loading." Applied Mechanics and Materials 170-173 (May 2012): 1202–6. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1202.

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Geotechnical prestressed anchorage structures are widely used in high slope, deep foundation pit, dam and other geotechnical reinforcement engineerings. Under the influence of the outside environment, its pretensioned force is not fixed, but presents a kind of approximate closed cyclic loading mode, under which the development and evolution regularity of the interface shear stress for the inner bond section of geotechnical prestressed anchorage structure is directly related to the ultimate bearing capacity and its long-term durability. In the experiment, the means of indoor model test was adop

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