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Artykuły w czasopismach na temat „Anchorage (Structural engineering)”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 27 lipca 2024

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1

Gálvez, Jaime C., Manuel Elices Calafat, and Miguel A. Olivares. "Damage Tolerance in Civil Engineering Components: Implementation to an Anchorage." Key Engineering Materials 417-418 (October 2009): 73–76. http://dx.doi.org/10.4028/www.scientific.net/kem.417-418.73.

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The use of the damage tolerance concept is growing in the design of civil engineering structures. The aim of this paper is to provide some guides to help designing anchorages according to the damage tolerance concept. The paper shows the importance of the small defects, idealized like small cracks, in the structural integrity of these elements. The Stress Intensity Factors (SIFs) induced by small cracks in an anchor head of post-tensioned strand anchorage system are calculated. The study includes the evaluation of the influence of the shape of the anchor head on the SIF. The numerical predicti

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2

Liu, Zihao, Dan Zhou, Zhongyi Zheng, Zhaolin Wu, and Longhui Gang. "An Analytic Model for Identifying Real-Time Anchorage Collision Risk Based on AIS Data." Journal of Marine Science and Engineering 11, no. 8 (August 5, 2023): 1553. http://dx.doi.org/10.3390/jmse11081553.

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With the increasing volume of ship traffic, maritime traffic safety is facing a great challenge because the traffic in port becomes more and more crowded and complicated, which will make ship collisions more likely to happen. As a special water area of the port, the anchorage is also threatened by collision risk all the time. For accurately assessing the collision risk in anchorage and its adjacent waters in real time, this paper proposed an analytic model based on Automatic Identification System (AIS) data. The proposed anchorage collision risk model was established in microscopic, macroscopi

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3

McKay, K. S., and M. A. Erki. "Grouted anchorages for aramid fibre reinforced plastic prestressing tendons." Canadian Journal of Civil Engineering 20, no. 6 (December 1, 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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4

Shen, Junchao. "Experimental Study on Anchorage Performance of Resin Grout with Steel Segment." Advances in Civil Engineering 2021 (May 25, 2021): 1–19. http://dx.doi.org/10.1155/2021/5580555.

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With the advantages of large anchoring force and fast anchoring speed, resin cartridge has become the main anchoring means of geotechnical engineering and underground space engineering support. Based on the theoretical analysis, it is clear that adding aggregate can improve the mechanical properties of grout and the bolt-grout interface stress state; the mechanical properties of aggregate are positively correlated with its improvement effect on anchorage performance. By using the numerical simulation method, it is concluded that the addition of steel segments into the resin grout can improve t

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5

Pamuković, Jelena Kilić, Katarina Rogulj, and Nikša Jajac. "Towards Sustainable Management of Anchoring on Mediterranean Islands—Concession Support Concept." Journal of Marine Science and Engineering 10, no. 1 (December 24, 2021): 15. http://dx.doi.org/10.3390/jmse10010015.

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The focus of this paper is to define anchorage management model for concession planning purposes to provide quality support to experts in spatial planning when developing maritime spatial plans. The research aim is to develop an anchorage management model that includes decision and concession support concept. Decision support concept is defined in order to support the processes of identifying potential anchorage locations, their evaluation and comparison, and finally, the priority ranking and selection of locations for their construction. The final step is modelling the concession support conc

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6

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 (November 27, 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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7

Tomaszewicz, Dariusz, Agnieszka Jablonska-Krysiewicz, and Jerzy K. Szlendak. "The effect of the stress distribution of anchorage and stress in the textured layer on the durability of new anchorages." Open Engineering 10, no. 1 (July 21, 2020): 705–11. http://dx.doi.org/10.1515/eng-2020-0079.

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AbstractThe paper estimated the effect of the distribution of edge and shear stresses occurring in the façade texture layer of three-layer walls of large slab panel buildings, as well as the variability of these stresses depending on the anchorage strength of the anchorage. Bonded anchors with seven different diameters M8 ÷ M30, selected based on catalogues, were analysed. The traction stress was determined based on the destructive force, which is determined by the catalogues of manufacturers of bonded anchors. Depending on the choice of the method of repairing the connections between the text

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8

Baryłka, A., and D. Tomaszewicz. "Relationship of the interaction load capacity of anchors on their number and anchoring system." Archives of Materials Science and Engineering 112, no. 2 (December 1, 2021): 55–62. http://dx.doi.org/10.5604/01.3001.0015.6286.

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Purpose: The article presents the possibilities of using anchoring systems in the walls of three-layer large slab panel buildings. The use of diagonal anchors allows to increase the effective anchorage depth, which significantly increases the durability of the façade textured layer. Design/methodology/approach: Pilot tests have confirmed the necessity to use an anchor system in various configurations. Findings: The documents used included the conclusions of the pilot tests on the real object and the main experimental tests carried out on concrete samples. Research limitations/implications: The

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9

Sayed-Ahmed, Ezzeldin Y., and Nigel G. Shrive. "A new steel anchorage system for post-tensioning applications using carbon fibre reinforced plastic tendons." Canadian Journal of Civil Engineering 25, no. 1 (January 1, 1998): 113–27. http://dx.doi.org/10.1139/l97-054.

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During the past half century, the use of prestressing in different structures has increased tremendously. One of the most important techniques of prestressing is post-tensioning. The main problem associated with post-tensioning in different structures is the corrosion of the prestressing steel tendons even with well-protected steel. New materials, fibre reinforced plastics or polymers (FRP), which are more durable than steel, can be used for these tendons/strands and thus overcome the corrosion problem. However, different shortcomings appear when FRP tendons are introduced to post-tensioning p

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10

Wu, Bowen, Xiangyu Wang, Jianbiao Bai, Shuaigang Liu, Guanghui Wang, and Guanjun Li. "A Study of the Anchorage Body Fracture Evolution and the Energy Dissipation Rule: Comparison between Tensioned Rock Bolts and Torqued Rock Bolts." Advances in Civil Engineering 2021 (February 15, 2021): 1–14. http://dx.doi.org/10.1155/2021/5542569.

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Rock bolt support is an effective technique for controlling surrounding rock of deep roadway. The stability of the anchorage body composed of rock bolts and surrounding rock mass is the core in keeping the stability of roadways. In this paper, the UDEC Trigon model was used in simulating uniaxial compressive test on the anchorage body under different pretension loads. The energy equilibrium criterion of the anchorage body under the uniaxial compressive state was proposed. Furthermore, the fracture evolution and the energy dissipation during the failure process of the anchorage body were analyz

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11

Jo, Byung-Wan, Yunn-Ju Byun, and Ghi-Ho Tae. "Structural behavior of cable anchorage zones in prestressed concrete cable-stayed bridge." Canadian Journal of Civil Engineering 29, no. 1 (February 1, 2002): 171–80. http://dx.doi.org/10.1139/l01-087.

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Since the cable anchorage zone in a prestressed concrete cable-stayed bridge is subjected to a large amount of concentrated tendon force, it shows very complicated stress distributions which can cause serious local cracks. Accordingly, it is necessary to investigate the parameters affecting the stress distribution, such as the cable inclination, the position of the anchor plate, the modeling method, and three-dimensional effects. The tensile stress distribution in the anchorage zone is compared to the actual design condition by varing the stiffness of spring elements in the local modeling, and

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12

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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13

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 (October 28, 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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14

Jia, Lijun, Yuchen Yang, and Xiao Cong. "Static Experimental Study on New Arc Multi-Tendon CFRP Cable Anchorage System." Buildings 13, no. 3 (March 2, 2023): 669. http://dx.doi.org/10.3390/buildings13030669.

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CFRP has the potential to replace steel cables in large-span cable-stayed bridges due to its high strength and lightweight material properties. However, the weak lateral force performance of CFRP material creates the challenge of anchoring. This study introduces a new inner cone + arc + straight cylinder bond-type anchorage system to optimize CFRP tendons’ force state. Experimental and finite element analyses verified the new anchoring system’s performance. In static load tensile tests, six groups of seven CFRP tendon anchorage systems with different sleeve grooves were used to study the failu

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15

Bai, Xiaoyu, Xueying Liu, Mingyi Zhang, Yonghong Wang, Zheng Kuang, and Nan Yan. "Stress Transfer Properties and Displacement Difference of GFRP Antifloating Anchor." Advances in Civil Engineering 2020 (July 28, 2020): 1–18. http://dx.doi.org/10.1155/2020/8894720.

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Glass fiber reinforced polymer (GFRP) antifloating anchors are widely used in reinforcing underground structures. Despite the outstanding application advances of GFRP anchors in the antifloating field, research on the mechanical transmission and deformation properties of the anchor rod and anchorage body is still scarce. This paper introduces pull-out experiments of GFRP antifloating anchors based on the FBG sensor strings technology. The experimental data demonstrates that the distribution curve of the axial stress shows a reversed-S shape, and the shear stress distribution presents the law o

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16

Werdina, Ghassan M., and Omar Q. Aziz. "Interaction between the Local and General Zone for the Post-tensioned Girder Anchorage Zone." Open Civil Engineering Journal 15, no. 1 (April 16, 2021): 50–73. http://dx.doi.org/10.2174/1874149502115010050.

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Background: The use of post-tensioning in girders causes high bearing and compressive stresses in the anchorage zone. In this study, the behavior of the anchorage zone and the interaction between the local and general zone are investigated. The variables included different reinforcements for both the local and general zones for a block of two anchorage devices. Methods: Both experimental and numerical methods have been applied to study the behavior of the anchorage zone. The experimental part of the study involved laboratory testing of sixteen specimens, and the numerical study was conducted u

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17

Alhusain, Mustafa, and Adil Al-Mayah. "Innovative Wedge Anchorage for CFRP Plates: Development and Testing." Journal of Composites Science 8, no. 3 (March 14, 2024): 103. http://dx.doi.org/10.3390/jcs8030103.

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Gripping prestressed carbon fiber-reinforced polymers (CFRPs) in structural strengthening applications is challenging due to CFRPs’ susceptibility to lateral loading. This paper presents a reliable and reusable wedge anchorage for gripping CFRP plates that are 50 mm wide and 1.2 mm thick. The cylindrical anchorage, which is 75 mm long and 76.2 mm in diameter, consists of an external steel barrel, two internal steel wedges, and two soft copper sleeves. The barrel-wedge interface is designed using an innovative arc–linear configuration, through which the desired stress distribution is attained,

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18

Gora, Abdurra’uf Mukhtar, Jayaprakash Jaganathan, Mohammed Parvez Anwar, and Hau Y. Leung. "Flexural capacity of bi-directional GFRP strengthened RC beams with end anchorages." International Journal of Structural Integrity 10, no. 2 (April 8, 2019): 188–207. http://dx.doi.org/10.1108/ijsi-04-2018-0021.

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Purpose The purpose of this paper is to present the results of experimental and theoretical studies on the flexural capacity of reinforced concrete (RC) beams strengthened using externally bonded bi-directional glass fibre reinforced polymer (GFRP) composites and different end anchorage systems. Design/methodology/approach A series of nine RC beams with a length of 1,600 mm and a cross-section of 200 mm depth and 100 mm width were prepared and externally strengthened in flexure with bi-directional GFRP composites. These strengthened beams were anchored with three different end anchorage system

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19

Shi, Wenbao, Yan Li, Wanfeng Li, and Shihui Li. "Bearing Characteristics of Surrounding Rock of Deep Mining Roadway with Full and End Bolt Anchorages: A Comparative Numerical and Experimental Study." Advances in Civil Engineering 2021 (January 15, 2021): 1–10. http://dx.doi.org/10.1155/2021/8829323.

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The support strength of surrounding rock in deep mining roadways can be significantly improved by replacing the end bolt anchorage with a full one. The support effects of both types of anchorage and the axial stress distribution characteristics in anchored bolt bodies were assessed via the indoor pull-out test, simulated via the FLAC3D software, and verified by field measurements. The stability and variation patterns of the axial force, as well as the evolution law of bearing characteristics of surrounding rock, were analyzed. The results indicate that the polymorphic deformations of deep mini

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20

Eligehausen, Rolf, Werner Fuchs, and Thomas M. Sippel. "Anchorage to concrete." Progress in Structural Engineering and Materials 1, no. 4 (July 1998): 392–403. http://dx.doi.org/10.1002/pse.2260010408.

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López, J. Alfredo, Francisco J. Carrión, Juan A. Quintana, Didier Samayoa-Ochoa, María G. Lomelí, and Pablo R. Orozco. "Verification of the Ultrasonic Qualification for Structural Integrity of Partially Concrete Embedded Steel Elements." Advanced Materials Research 65 (March 2009): 69–78. http://dx.doi.org/10.4028/www.scientific.net/amr.65.69.

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Failure of one upper anchorage element in a cable-stayed bridge and its consequent analysis concluded that the main cause of the failure was a deficient heat treatment that resulted in large micro structural grain size and low fracture toughness, vulnerable to fatigue damage. Previous research studies demonstrated that ultrasonic evaluation could provide some insight of the microstructural integrity by correlating the ultrasonic response to the grain size. Thus, this technique was used to inspect the 112 elements in service in the bridge and 16 were qualified as structurally deficient, without

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22

Meyer, Avery, Nicola M. Pugno, and Steven W. Cranford. "Compliant threads maximize spider silk connection strength and toughness." Journal of The Royal Society Interface 11, no. 98 (September 6, 2014): 20140561. http://dx.doi.org/10.1098/rsif.2014.0561.

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Millions of years of evolution have adapted spider webs to achieve a range of functionalities, including the well-known capture of prey, with efficient use of material. One feature that has escaped extensive investigation is the silk-on-silk connection joints within spider webs, particularly from a structural mechanics perspective. We report a joint theoretical and computational analysis of an idealized silk-on-silk fibre junction. By modifying the theory of multiple peeling, we quantitatively compare the performance of the system while systematically increasing the rigidity of the anchor thre

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23

Kabantsev, Oleg, and Mikhail Kovalev. "Failure Mechanisms and Parameters of Elastoplastic Deformations of Anchorage in a Damaged Concrete Base under Seismic Loading." Buildings 12, no. 1 (January 13, 2022): 78. http://dx.doi.org/10.3390/buildings12010078.

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The article addresses mechanisms of anchorage failure in a concrete base studied within the framework of physical experiments. The authors investigated the most frequently used types of anchors, such as the cast-in-place and post-installed ones. The anchorages were studied under static and dynamic loading, similar to the seismic type. During the experiments, the post-earthquake condition of a concrete base was simulated. Within the framework of the study, the authors modified the values of such parameters, such as the anchor embedment depth, anchor steel strength, base concrete class, and base

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24

Pušić, Danijel, and Zvonimir Lušić. "Multi-Criteria Decision Analysis for Nautical Anchorage Selection." Journal of Marine Science and Engineering 11, no. 4 (March 27, 2023): 728. http://dx.doi.org/10.3390/jmse11040728.

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Considering that moorings and anchorages for vessels have recently become an important factor in nautical tourism, the selection of their locations is a complex and demanding process. This paper examines numerous criteria from different perspectives to determine the most favourable/optimal locations for nautical anchorages, meeting the conditions and recommendations of professionals from several domains, by applying the methods of multi-criteria analysis. The goal of solving the problem this way is to meet the expectations of future users, spatial planners, possible investors, and concessionai

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25

Yong, Nie, Zhao Yufei, and Du Guangjin. "Dynamic response of full-length bonded anchor cable in rock slope." E3S Web of Conferences 233 (2021): 03010. http://dx.doi.org/10.1051/e3sconf/202123303010.

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The research on the anchoring mechanism of slope anchor cable under earthquake action is not in-depth. Therefore, it has become an urgent problem in engineering practice to study the seismic characteristics of slope anchoring system and then realize the optimal design of slope anchoring. In this paper, the dynamic response of a rock slope strengthened with a full-length bonded anchor cable is studied by centrifuge model test. It is found that the internal structure of the rock slope has an important effect on the length of the bonded anchor cable. The structural surface will lead to an increas

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Vavrus, Martin, and Jakub Kralovanec. "Study of Application of Fiber Reinforced Concrete in Anchorage Zone." Buildings 13, no. 2 (February 14, 2023): 524. http://dx.doi.org/10.3390/buildings13020524.

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In the case of post-tensioned or geotechnical structures, the anchorage zone is considered a critical part of the design and construction process. Generally, the failure of the anchorage zone is one of the most common problems. High-bearing stresses create significant transverse tension. For these reasons, conventional reinforcement, usually in the form of closed stirrups, must be designed. The presented analysis is focused on the possible increase of load-carrying capacity of the anchorage zone with steel fiber-reinforced concrete. Three types of specimens were analyzed. The first type of spe

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Lian, Shao, Ou Jinping, and Zhou Zhi. "Development of a new anchorage system for carbon fiber–reinforced polymer rods using extrusion process." Advances in Structural Engineering 25, no. 5 (January 10, 2022): 1002–14. http://dx.doi.org/10.1177/13694332211057265.

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Carbon fiber–reinforced polymer (CFRP) rods have been considered as a candidate material for prestressed concrete applications because of their superior properties. For current applications, successful use of CFRP rods is linked to an efficient anchorage system design. This paper presents a newly developed anchorage system for CFRP rods and the design concept that the extrusion process is used to generate gripping force. The proposed anchorage system consists of a steel barrel and an aluminum sleeve, and an extrusion region is designed on the outside of barrel to generate a suitable contact pr

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Cui, Zhen, Maochu Zhang, and Qian Sheng. "Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method." Journal of Marine Science and Engineering 10, no. 2 (February 7, 2022): 221. http://dx.doi.org/10.3390/jmse10020221.

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Traditionally, the numerical simulation work of a bridge gravity anchorage structure is performed with a continuous method, such as the finite element method (FEM). However, since the rock mass and gravity anchorage structure are assumed to be continuous in the FEM, the interaction between the rock mass foundation and the concrete of the anchorage is not frequently considered. This paper aims to investigate the problem of the interaction between the rock mass foundation and the concrete of the anchorage. The discrete element method (DEM), which has been verified to be suitable for the modellin

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Zhang, Tao, Qingzhen Lu, Jun Yan, Shichao Wang, Qianjin Yue, Shanghua Wu, Hailong Lu, and Jinlong Chen. "Numerical Study on Flexible Pipe End Fitting Progressive Failure Behavior Based on Cohesive Zone Model." Journal of Marine Science and Engineering 11, no. 1 (January 5, 2023): 116. http://dx.doi.org/10.3390/jmse11010116.

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Flexible pipes are extensively used to connect seabed and floating production systems for the development of deep-water oil and gas. In the top connection area, end fitting (EF) is the connector between the flexible pipe and floating platform, as a critical component for structural failure. To address this issue, a combined numerical and experimental prediction method is proposed in this paper to investigate the failure behavior of flexible pipes EF considering tensile armor and epoxy resin debonding. In order to analyze the stress distribution of the tensile armor and the damage state of the

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Michels, Julien, Jose Sena-Cruz, Christoph Czaderski, and Masoud Motavalli. "Structural Strengthening with Prestressed CFRP Strips with Gradient Anchorage." Journal of Composites for Construction 17, no. 5 (October 2013): 651–61. http://dx.doi.org/10.1061/(asce)cc.1943-5614.0000372.

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Campbell, T. I., N. G. Shrive, K. A. Soudki, A. Al-Mayah, J. P. Keatley, and M. M. Reda. "Design and evaluation of a wedge-type anchor for fibre reinforced polymer tendons." Canadian Journal of Civil Engineering 27, no. 5 (October 1, 2000): 985–92. http://dx.doi.org/10.1139/l00-048.

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The development of a wedge-type anchorage system for fibre reinforced polymer (FRP) tendons, as part of an overall corrosion-free post-tensioning system, is outlined in this paper. A stainless steel anchor is described, and results from numerical models and load tests to evaluate its behaviour under loads from anchor set, as well as static and repeated tendon tension, are presented. An alternative wedge-type anchorage system made from ultra-high performance concrete is also described. It is shown that, although significant progress has been made in development of the anchorage, further work is

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Feng, Bo, Xin Wang, and Zhishen Wu. "Evaluation and prediction of carbon fiber–reinforced polymer cable anchorage for large capacity." Advances in Structural Engineering 22, no. 8 (February 19, 2019): 1952–64. http://dx.doi.org/10.1177/1369433219829806.

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Aiming to address the problems of stress concentration on conical wedge anchorage, a fiber-reinforced polymer cable anchorage with segmental variable stiffness of the load transfer medium was proposed. The key parameters that affect the anchorage behavior were investigated. The mechanical properties of the carbon fiber–reinforced polymer tendon and load transfer medium were tested. The failure mode, anchoring efficiency, stress, and displacement in the anchor zone were studied. The parameter optimization was performed using an experimentally verified finite element simulation. The parameters o

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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 (January 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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Wang, Zhongling, Xiaohong Zheng, Qiqi Wang, and Qian Wang. "An Experimental Study on the Bond–Slip Relationship between Rebar and Ultra-High-Performance Concrete Grouted in Bellows." Buildings 13, no. 9 (September 18, 2023): 2375. http://dx.doi.org/10.3390/buildings13092375.

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Ultra-high-performance concrete (UHPC)-filled duct connection is an innovative solution for joining assembled structures, in which the anchorage performance of the rebar and UHPC filled in bellows plays a critical role in determining the overall connection effectiveness. To establish a reliable anchorage length and a bond–slip relationship between rebar and UHPC within a bellow, a total of 16 specimens were conducted, and pullout tests were carried out. Two parameters were considered, including the diameter ratio (D/d), representing the proportion of the diameter of the bellow D to the diamete

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Farbák, Matúš, Jozef Jošt, Richard Hlinka, and Miroslav Rosmanit. "Numerical Analysis of the Load-Displacement Behaviour of Cast-in-Place Progressive Anchorage in Reinforced Concrete Members." Applied Sciences 11, no. 5 (March 6, 2021): 2343. http://dx.doi.org/10.3390/app11052343.

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Modern construction requirements for building structures are currently focused on reducing the time required for construction, dealing with the lack of qualified human resources and ensuring comprehensive construction work quality. The problems mentioned above of today’s construction industry are significantly reduced by modern prefabrication and the efficient use of the most common building materials—steel and concrete. Critical components of such construction systems are their joints. Currently, there are many different types of joints of precast concrete structural elements. Integral parts

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Peng, Wen Xiang, Ming Kai Xu, Yi Fan Chen, Zheng Hao Chen, and Zhuo Yang. "Field Experiment Research of the Polycystic Aeration Bolt: Model Design and Anchorage Mechanism." Advances in Civil Engineering 2021 (January 18, 2021): 1–10. http://dx.doi.org/10.1155/2021/6669368.

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As a new type of bolt, the polycystic aeration bolt has a broad application prospect in soft soil area; however, its design and production are still in the stage of constant exploration and improvement. From the perspective of bolt material and engineering cost, the important components of the polycystic aeration bolt were analyzed by combination with the existing bolt models, and a new structural design scheme of a kind of polycystic aeration bolt which can be used in practical engineering was presented in this paper. Then, the stress and failure mode of this bolt were discussed, and the theo

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37

Luo, Xinyang, Ping Cao, Taoying Liu, Qingxiong Zhao, Gang Meng, Zhi Fan, and Weiping Xie. "Mechanical Behaviour of Anchored Rock Containing Weak Interlayer under Uniaxial Compression: Laboratory Test and Coupled DEM–FEM Simulation." Minerals 12, no. 4 (April 17, 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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38

Cui, Nannan, and Shiping Huang. "ON THE OPTIMAL STRUT-AND-TIE MODELS AND DESIGN APPROACH FOR THE CABLE-PYLON ANCHORAGE ZONE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 25, no. 6 (June 25, 2019): 576–86. http://dx.doi.org/10.3846/jcem.2019.10374.

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The cable-pylon anchorage zone is a typical D-region in a cable-stayed bridge, for which there has been no uniform simplified design method until now. In this paper, based on the extensive statistics of actual projects, topology optimization techniques and principle of minimum strain energy, two precise strut-and-tie models for the cable-pylon anchorage zone are proposed, which can clearly reveal the load-transmitting mechanism of the anchorage zone. Th e explicit geometric parameters of the strut-and-tie models are derived; thus, the designers can directly use these models. A simple design pr

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Soraghi, Ahmad, and Qindan Huang. "Simple rebar anchorage slip macromodel considering corrosion." Engineering Structures 262 (July 2022): 114357. http://dx.doi.org/10.1016/j.engstruct.2022.114357.

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Ye, Hanhui, and Zhijian Chen. "Structural Condition Assessment and Temperature Effect Analysis of Cable–Pylon Anchorage Zone Using Long-Term SHM Data." Advances in Civil Engineering 2023 (August 8, 2023): 1–22. http://dx.doi.org/10.1155/2023/7431867.

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To study the temperature effect in the anchorage zone of a long-span cable-stayed bridge, a wavelet multiresolution analysis and layered stripping method were used in this paper. Based on long-term structural health monitoring data, the signals were decomposed and reconstructed at multiple time scales, confirming temperature to be the main factor causing the stress change in the anchorage zone. The results of structural condition during operation showed that the general compressive stress level of the anchorage zone was low. However, the tensile stress level of the sidewall was high, which led

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Park, Young-Ha, Moon-Young Kim, Jong-Myen Park, and Se-Jin Jeon. "An Improved Equation for Predicting Compressive Stress in Posttensioned Anchorage Zone." Advances in Civil Engineering 2020 (February 28, 2020): 1–12. http://dx.doi.org/10.1155/2020/5635060.

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Validity of the approximate equation for predicting compressive stress in the posttensioned anchorage zone presented in the AASHTO LRFD Bridge Design Specifications was investigated in this study. Numerical analysis based on the finite element method (FEM) and theoretical analysis showed that the AASHTO formula gives relatively accurate stress values when the effect of duct holes is neglected. However, it was found that the formula can significantly overestimate the stresses in the actual prestressed concrete member with spaces occupied by ducts. Therefore, an improved equation was proposed fo

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Lee, Sang-Moon, and Woo-Young Jung. "Evaluation of anchorage performance of the switchboard cabinet under seismic loading condition." Advances in Mechanical Engineering 12, no. 5 (May 2020): 168781402092630. http://dx.doi.org/10.1177/1687814020926309.

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In this study, the seismic response of the anchorage used for switchboard cabinets at a power plant was presented based on the results of an experiment and numerical simulations. In the experimental study, shaking table tests were performed to investigate the overall structural behavior of switchboard cabinets. The finite element modeling was conducted using the ABAQUS program, and in order to validate the proposed finite element model, the natural frequency, stress, and displacement were compared with the experimental results. A slight difference was found in the results due to the problem cu

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Kim, Joung Rae, Hyo-Gyoung Kwak, Byung-Suk Kim, Yangsu Kwon, and El Mahdi Bouhjiti. "Finite element analyses and design of post-tensioned anchorage zone in ultra-high-performance concrete beams." Advances in Structural Engineering 22, no. 2 (July 20, 2018): 323–36. http://dx.doi.org/10.1177/1369433218787727.

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This article presents analyses and the design of a post-tensioned anchorage zone made of ultra-high-performance concretes with three-dimensional finite element analyses. The structural behavior was investigated through the failure modes and cracking patterns to show the anchorage zone resistance enhancement with an increase of the strength in concrete. Since the anchorage failure is usually initiated from the local zone in the case of ultra-high-performance concrete beams that have compressive strength of more than 80 MPa, the placement of reinforcements can effectively be used to enhance the

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Li, Lifeng, Weili Gong, Huilin Deng, Xiaohu Zhang, and Gan Li. "Distribution Pattern of Anchorage Stress and Water Sensitivity Analysis of Red Clay." Shock and Vibration 2020 (February 19, 2020): 1–12. http://dx.doi.org/10.1155/2020/6272576.

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Red clay is a special soil layer with complex engineering properties distributed in tropical and subtropical regions. An anchor cable support is a common form of red clay slope support. The effectiveness of the anchor cable support is mainly determined by the anchoring force provided by the red clay stratum. Increase of the water content will lead to the rapid deterioration of the mechanical properties of red clay, which will lead to the reduction of the anchoring force of the slope anchor cable and lead to the failure of the support. Based on the classical Phillips and uniform anchorage shear

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Iekel, Philip P., Brent Phares, and Michael Nop. "Performance Investigation and Design of Pile-to-Pile Cap Connections Subject to Uplift." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 52 (September 18, 2018): 278–90. http://dx.doi.org/10.1177/0361198118796733.

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Substructure bridge components are designed to resist gravitational forces such as dead load and vehicular live load, as well as lateral forces including wind, vehicular braking, and centrifugal force effects. Significant lateral forces can create “uplift” conditions on some portions of the foundation. A review of current design techniques regarding uplift in the pile-to-pile cap connection indicates a lack of uniformity in the design process across state agencies stemming from minimal research performed in this area. In addition, approved uplift anchors for use in the field have not been test

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Tanaka, H., R. Park, and B. McNamee. "Anchorage of transverse reinforcement in rectangular reinforced concrete columns in seismic design." Bulletin of the New Zealand Society for Earthquake Engineering 18, no. 2 (June 30, 1985): 165–90. http://dx.doi.org/10.5459/bnzsee.18.2.165-190.

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Four reinforced concrete columns with 400 mm (15.7 in) square cross sections were tested under axial compressive load and cyclic flexure to simulate severe seismic loading. The longitudinal reinforcement consisted of eight bars. The transverse reinforcement consisted of square perimeter hoops surrounding all longitudinal bars and cross ties between the intermediate longitudinal bars. The major variable of the study was the type of anchorage used for the hoops and cross ties. The anchorage details involved arrangements of perimeter hoops with 135° end hooks, cross ties with 90° and/or 180° end

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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 (April 22, 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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Ding, Wan Tao, Jin Hui Liu, and Shu Cai Li. "Discussion on Anchor Structures’ Deterioration Analysis Parameter Caused by Reinforcement Corrosion under Erosion Environment Condition." Applied Mechanics and Materials 268-270 (December 2012): 827–30. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.827.

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Because of long-term chloride erosion and alternate drying-wetting effect, anchorage support structure of underground engineering is liable to reinforced corrosion and its strength is decreased. According to previous research theory and test results, reinforced corrosion to deteriorate load-bearing role of anchorage support structure system is studied by means of numerical analysis FLAC3D and idea of finite element strength reduction. The results are as follows: (1) losses in the anchor structural performance in underground engineering with corroded reinforcements are caused by three factors:

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Geng, Tiesuo, Shuanghua Chen, Liuqun Zhao, and Zhe Zhang. "Research on Bonding Performance of Anchorage Caisson Foundation with Different Contact Surfaces and Grouting Bed." Buildings 11, no. 8 (August 19, 2021): 365. http://dx.doi.org/10.3390/buildings11080365.

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In view of the first domestic offshore suspension bridge with caisson foundation, this paper mainly studies the bonding properties between underwater pre-filled aggregate grouting bed and anchorage caisson foundation. Through the test, the cohesive force of adding ordinary concrete between the anchorage caisson foundation and the grouting bed, the cohesive force of adding paper base asphalt felt between the anchorage caisson foundation and the grouting bed, and the cohesive force of adding geotextile between the anchorage caisson foundation and the grouting bed are measured, respectively. When

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Chen, Yun, Nai Long Zhu, and Shuai Gao. "An Energy Dissipation Device Based on Shape Memory Alloys for Frame Structures." Applied Mechanics and Materials 580-583 (July 2014): 1591–94. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.1591.

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This paper proposes an energy dissipation device based on shape memory alloys (SMA) for frame structures. By setting anchorage device below and near the inflection point of the first storey columns, a set of force cable and energy dissipation cable using SMA are installed symmetrically in the anchorage device and the bottom of them fixed in the ground. Analytical study including the push-over and time-history analysis were investigated by ANSYS finite element program to a new CFST frame and an ordinary CFST frame. Studies have shown that the device can effectively control the structural displa

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