Log in

Relevant bibliographies by topics / Anchor capacity / Journal articles

To see the other types of publications on this topic, follow the link: Anchor capacity.

Journal articles on the topic 'Anchor capacity'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Anchor capacity.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

El Sharnouby, M. M., and M. H. El Naggar. "Numerical investigation of the response of expansion anchors used to attach helical pile connectors to concrete foundations." Canadian Journal of Civil Engineering 37, no. 6 (2010): 866–77. http://dx.doi.org/10.1139/l10-025.

Full text

Abstract:

This paper evaluates the performance of expansion anchors used to attach helical pile connectors to foundations. The anchors’ response to pullout loads was evaluated using nonlinear finite element analysis with the aid of the commercial software, Abaqus. The connector capacity under horizontal movement of the foundation for different anchor diameters, embedment depths, and anchors’ spacing is reported. It was found that the pre-tension load had no influence on the anchor ultimate capacity, but affected the anchor response at service load levels and the displacement at failure. Under pullout lo

APA, Harvard, Vancouver, ISO, and other styles

2

Peccin da Silva, Anderson, Andrea Diambra, Dimitris Karamitros, and Shiao Huey Chow. "A Cyclic Macro-Element Framework for Consolidation-Dependent Three-Dimensional Capacity of Plate Anchors." Journal of Marine Science and Engineering 9, no. 2 (2021): 199. http://dx.doi.org/10.3390/jmse9020199.

Full text

Abstract:

This paper presents a new macro-element modelling framework for plate anchors which enables the effect of pore water pressure changes and the related evolution of soil strength during the process of cyclic loading and consolidation to be captured. The proposed modelling framework combines an advanced macro-element model for plate anchors, expanded to capture the cyclic loading behaviour, with a simple one-dimensional model of undrained shearing and consolidation for a soil element representative of the whole soil mass around the anchor. The representative soil element tracks the effects of cha

APA, Harvard, Vancouver, ISO, and other styles

3

Stewart, William. "Uplift capacity of circular plate anchors in layered soil." Canadian Geotechnical Journal 22, no. 4 (1985): 589–92. http://dx.doi.org/10.1139/t85-078.

Full text

Abstract:

For anchors embedded in cohesive soil, the uplift capacity remains almost constant when the ratio of anchor embedment depth to anchor diameter (D/B) increases above about 4.5. The uplift capacity of anchors in cohesionless soil increases as D/B increases and the increase is greater with increased density of the cohesionless soil. Then, given that an anchor is embedded in cohesive soil, it may be possible to increase the uplift capacity of the anchor by placing a cohesionless overlay on the clay layer.The purpose of the model tests reported in this note was to investigate the effectiveness of p

APA, Harvard, Vancouver, ISO, and other styles

4

Lu, Li, and Shu Guang Wu. "Bearing Capacity Predicting Method on Mortar-Rock Interface of Compression Type Rock Anchor." Applied Mechanics and Materials 357-360 (August 2013): 880–83. http://dx.doi.org/10.4028/www.scientific.net/amm.357-360.880.

Full text

Abstract:

To predict bearing capacity on mortar-rock interface of compression type rock anchor, the failure model of fixed anchor length is established. The maximal shear stresses on the interface in front of the bearing plate are determined based on tests. The relation of maximal shear stress and fixed anchor length is assumed. Double exponential function curves are adopted to simulate the ultimate state of the fixed anchor length. Two parameters are introduced to adjust the curve shape. According to the results of the field test, the values range of the parameters in soft rock is determined. After com

APA, Harvard, Vancouver, ISO, and other styles

5

Choudhury, Deepankar, and K. S. Subba Rao. "Seismic uplift capacity of inclined strip anchors." Canadian Geotechnical Journal 42, no. 1 (2005): 263–71. http://dx.doi.org/10.1139/t04-074.

Full text

Abstract:

Uplift capacities of inclined strip anchors in soil with a horizontal ground surface are obtained under seismic conditions. Limit equilibrium approaches with a logarithm-spiral failure surface and pseudostatic seismic forces are adopted in the analysis. The results are presented in the form of seismic uplift capacity factors as functions of anchor inclination, embedment ratio, angle of internal friction of the soil, and horizontal and vertical seismic acceleration coefficients. The uplift capacity factors are worked out separately for cohesion, surcharge, and density components. Use of the pri

APA, Harvard, Vancouver, ISO, and other styles

6

Yang, Xuexiang, Shanpo Jia, Caoxuan Wen, and Yuanjie Liu. "Development of a New Inflatable Controlled Anchor System and Experimental Study of pull-out Capacity." Advances in Civil Engineering 2019 (April 30, 2019): 1–12. http://dx.doi.org/10.1155/2019/8105986.

Full text

Abstract:

Considering the deficiency of traditional anchors, we propose a new type of inflatable controlled anchor system in this paper. The working mechanism and its structural composition of newly designed inflatable controlled device are discussed in detail. To investigate the performance and pull-out capacity of this new anchor system, a series of field tests were carried out under different inflation pressure conditions. By comparing these test results with those of traditional grouting anchors, a full-process constitutive model of anchor-soil interface is proposed to depict the pull-out characteri

APA, Harvard, Vancouver, ISO, and other styles

7

Tian, Yinghui, Christophe Gaudin, Mark F. Randolph, and Mark J. Cassidy. "Influence of padeye offset on bearing capacity of three-dimensional plate anchors." Canadian Geotechnical Journal 52, no. 6 (2015): 682–93. http://dx.doi.org/10.1139/cgj-2014-0120.

Full text

Abstract:

This paper reports advanced three-dimensional large-deformation finite element analyses investigating the effect of the padeye offset on the behaviour of plate anchors. The analyses varied the normalized padeye offset from 0 to 0.5 and identified two counterbalancing effects on the anchor bearing capacity induced by the padeye offset. These are the change in anchor inclination with respect to the direction of loading (detrimental due to the reduction of bearing area) and the reduction of loss of embedment (beneficial, as the anchor mobilizes stronger soil). The results provide insights to opti

APA, Harvard, Vancouver, ISO, and other styles

8

Mahrenholtz, Christoph, and Akanshu Sharma. "Load Capacity of Shallow Embedded Anchor Channels." CivilEng 1, no. 3 (2020): 243–52. http://dx.doi.org/10.3390/civileng1030015.

Full text

Abstract:

Anchor channels are cast in concrete and allow the connection of components using channel bolts. In recent years, the design to value resulted in ever thinner concrete elements, which often cannot accommodate the required embedment depth of standard anchor channels. For this reason, channels may be fitted with short anchors. While existing design provisions allow for the calculation of the tension capacity also for shallow embedded anchor channels, tests are required to determine product-specific parameters for the economic shear loads design. The presented study investigated the performance o

APA, Harvard, Vancouver, ISO, and other styles

9

Neubecker, S. R., and M. F. Randolph. "The static equilibrium of drag anchors in sand." Canadian Geotechnical Journal 33, no. 4 (1996): 574–83. http://dx.doi.org/10.1139/t96-083-305.

Full text

Abstract:

This paper examines the static equilibrium of drag anchors during embedment in sand. A limit equilibrium method is developed to allow the anchor holding capacity to be predicted given a specific anchor geometry and position relative to the free surface of the sand. The method is based on the earlier approach of Le Lievre and Tabatabaee, but is extended to include a three-dimensional soil wedge, which is consistent with experimental observation. The solution procedure is also extended to be more applicable for anchors at a preultimate stage by incorporating a force behind the anchor fluke. To c

APA, Harvard, Vancouver, ISO, and other styles

10

Chen, Qiu-nan, Meng Yang, and Xiao-cheng Huang. "Experimental Exploration of Bearing Capacity of Clay with Multiple Inflatable Anchors." Geofluids 2020 (December 14, 2020): 1–11. http://dx.doi.org/10.1155/2020/8823781.

Full text

Abstract:

Inflatable anchors have been applied to reinforce foundations because soft soil deposits have a low bearing capacity. However, previous research on the mechanical behaviors of inflatable anchors has focused on a single anchor. Since anchors are always used in a group, the uplift behavior of multiple inflatable anchors in soft soil should be investigated. A series of pull-out tests were conducted in this framework by changing the number, spacing, and layout of inflatable anchors. Additionally, the effect coefficient (ECO) of multiple inflatable anchors is discussed. It is found that the failure

APA, Harvard, Vancouver, ISO, and other styles

11

Ozturk, Murat. "Prediction of tensile capacity of adhesive anchors including edge and group effects using neural networks." Science and Engineering of Composite Materials 20, no. 1 (2013): 95–104. http://dx.doi.org/10.1515/secm-2012-0059.

Full text

Abstract:

AbstractAdhesive anchors are widely used in seismic strengthening applications to add new structural members or sections to existing concrete members due to their high tensile and compressive strengths, low cost, and easy and fast installation. To safely design such anchors, it is very important to know their pullout capacity under axial tensile forces. This paper explores the pullout capacity of both single and groups of adhesive anchors loaded in tension in uncracked concrete. Quadruple anchor groups were considered for group effect. To this end, 142 single anchor tests including edge effect

APA, Harvard, Vancouver, ISO, and other styles

12

Cao, Juncai, Nong Zhang, Shanyong Wang, and Qun Wei. "Investigation of Mechanical Properties for Group Anchors." Applied Sciences 11, no. 4 (2021): 1521. http://dx.doi.org/10.3390/app11041521.

Full text

Abstract:

Prestressed anchor support is one of the most important support methods for coal mine roadways. As the coal mining depth increases, the adaptability of existing prestressed anchor has become weaker and weaker, which is mainly reflected in the current anchor prestress is much smaller than the support resistance required for the stability of the roadways and makes it difficult to effectively control the roadways. In order to solve the problem, a group anchor structure was proposed to realize higher prestressed anchor support technology and improve the support status of deep roadways. For coal mi

APA, Harvard, Vancouver, ISO, and other styles

13

Hsu, Shih Tsung. "A Numerical Study on the Uplift Behavior of Under-Reamed Anchors in Silty Sand." Advanced Materials Research 189-193 (February 2011): 2013–18. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.2013.

Full text

Abstract:

Ground anchors are common to be employed in geotechnical engineering. Under a limited space of an urban district or a restricted thick of an anchored stratum, an under-reamed anchor could meet both the requirements of a short length and a high anchorage capacity. To investigate the anchorage mechanism of the anchor, a series of triaxial tests was performed to obtain the parameters demanded for a constitutive model, SHASOVOD (A continuous strain hardening/ softening and volume dilatancy model for cohesionless soil during stressing). A numerical program was then developed to study the uplift beh

APA, Harvard, Vancouver, ISO, and other styles

14

O’Beirne, C., C. D. O’Loughlin, D. Wang, and C. Gaudin. "Capacity of dynamically installed anchors as assessed through field testing and three-dimensional large-deformation finite element analyses." Canadian Geotechnical Journal 52, no. 5 (2015): 548–62. http://dx.doi.org/10.1139/cgj-2014-0209.

Full text

Abstract:

The capacity of dynamically installed anchors in soft normally consolidated clay was examined experimentally through a series of field tests on a 1:20 reduced-scale anchor. The anchors were installed through free fall in water, achieving tip embedment of 1.5–2.6 times the anchor length, before being loaded under undrained conditions at various load inclinations. Vertical anchor capacities were between 2.4 and 4.1 times the anchor dry weight and were satisfactorily predicted using the American Petroleum Institute approach for driven piles. Anchor capacity under inclined loading increased as the

APA, Harvard, Vancouver, ISO, and other styles

15

Benmokrane, Brahim, Burong Zhang, Adil Chennouf, and Radhouane Masmoudi. "Evaluation of aramid and carbon fibre reinforced polymer composite tendons for prestressed ground anchors." Canadian Journal of Civil Engineering 27, no. 5 (2000): 1031–45. http://dx.doi.org/10.1139/l00-090.

Full text

Abstract:

This paper presents the tension and bond properties of commercially available Aramid fibre reinforced polymer (AFRP) and carbon fibre reinforced polymer (CFRP) rods and their uplift and sustained loading behaviour as ground anchor tendons. Variables for the tests were tendon type and constituent, grout type, and bond or fixed anchor length. Test results indicated that the tension properties of fibre reinforced polymer (FRP) rods were close to the reported data. The surface geometry of FRP rods and the properties of filling grouts influenced the pullout behaviour and bond strength of grouted FR

APA, Harvard, Vancouver, ISO, and other styles

16

Feng, Tugen, Jingyao Zong, Wei Jiang, Jian Zhang, and Jian Song. "Ultimate Pullout Capacity of a Square Plate Anchor in Clay with an Interbedded Stiff Layer." Advances in Civil Engineering 2020 (September 10, 2020): 1–10. http://dx.doi.org/10.1155/2020/8867678.

Full text

Abstract:

Three-dimensional nonlinear numerical analysis is carried out to determine the ultimate pullout capacity of a square plate anchor in layered clay using the large finite element analysis software ABAQUS. An empirical formula for the pullout bearing capacity coefficient of a plate anchor in layered soils is proposed based on the bearing characteristics of plate anchors in single-layer soils. The results show that a circular flow (circulation field) is induced around the plate anchor during the uplift process and that the flow velocity and circulation field range are mainly affected by the proper

APA, Harvard, Vancouver, ISO, and other styles

17

Soloviev, S. A., and L. S. Shevcov. "PROBABILISTIC ANALYSIS OF ANCHOR (DOWEL) PULL-OUT CAPACITY IN AERATED CONCRETE." Spravochnik. Inzhenernyi zhurnal, no. 275 (2020): 25–29. http://dx.doi.org/10.14489/hb.2020.02.pp.025-029.

Full text

Abstract:

Aerated concrete structures are widely used in construction as load-bearing or filler structures. The article describes the probabilistic approach to estimation of anchor (dowel) pull-out capacity. The article also presents the experimental studies of control samples from aerated concrete and diagrams “stress – strain”. The maximum permissible load values are obtained for the given batch of aerated concrete blocks based on the requirements of ensuring the specified reliability (probability of no-failure). Permissible load on the anchor (dowel) will also depend on the number of anchors in case

APA, Harvard, Vancouver, ISO, and other styles

18

Wang, D., and C. D. O’Loughlin. "Numerical study of pull-out capacities of dynamically embedded plate anchors." Canadian Geotechnical Journal 51, no. 11 (2014): 1263–72. http://dx.doi.org/10.1139/cgj-2013-0485.

Full text

Abstract:

Dynamically embedded plate anchors (DEPLAs) are a type of offshore anchor that combine the capacity advantages of vertically loaded plate anchors with the installation benefits of dynamically installed anchors. DEPLA capacity under monotonic loading conditions in clay has been investigated through centrifuge and field tests. In this paper, the monotonic capacity of DEPLAs in normally consolidated clay was studied using a three-dimensional large deformation finite element approach based on frequent mesh regeneration. Results from the numerical simulations were validated by comparison with centr

APA, Harvard, Vancouver, ISO, and other styles

19

Xie, Qun, Qin Zhu Sheng, and Hao Xue Ju. "Multiple Anchor Behavior of Steel-to-Concrete Connections under Reversed Cyclic Loading." Advanced Materials Research 255-260 (May 2011): 669–73. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.669.

Full text

Abstract:

Four steel-to-concrete connections with adhesive anchor groups under reversed cyclic loading have been tested. The results showed that anchor steel could reach yield strength before connection failure, generating small shell-shaped concrete cone in the surface of block and the ultimate capacity was governed by strength of anchor. Seismic characteristics of hysteresis curve, rigidity regression, ductility and energy-dissipation were used to draw conclusions that the connections would behave in a ductile manner without significant loss of loading capacity after peak value and visible deformation

APA, Harvard, Vancouver, ISO, and other styles

20

Kumar, B. R. Phani, and N. Ramachandra Rao. "Increasing pull-out capacity of granular pile anchors in expansive soils using base geosynthetics." Canadian Geotechnical Journal 37, no. 4 (2000): 870–81. http://dx.doi.org/10.1139/t00-012.

Full text

Abstract:

Granular pile anchors are innovative and effective in resisting the uplift pressure exerted on the foundation by a swelling expansive soil. In a granular pile anchor, the foundation is anchored at the bottom of the granular pile to an anchor plate with the help of a mild steel rod. This renders the granular pile tension-resistant and enables it to offer resistance to the uplift force exerted on the foundation by the swelling soil. This resistance to uplift or pull-out load depends mainly upon the shear parameters of the pile-soil interface and the lateral swelling pressure of the soil, which c

APA, Harvard, Vancouver, ISO, and other styles

21

Blake, A. P., C. D. O’Loughlin, and C. Gaudin. "Capacity of dynamically embedded plate anchors as assessed through field tests." Canadian Geotechnical Journal 52, no. 1 (2015): 87–95. http://dx.doi.org/10.1139/cgj-2013-0473.

Full text

Abstract:

A dynamically embedded plate anchor (DEPLA) is a rocket-shaped anchor that penetrates to a target depth in the seabed by the kinetic energy obtained through free-fall and by the anchor’s self-weight. After embedment, the central shaft is retrieved leaving the anchor flukes vertically embedded in the seabed. The flukes constitute the load bearing element as a plate anchor. This paper presents and considers field data on the embedment depth loss due to the plate anchor keying process and the subsequent bearing capacity factor of the plate anchor element. The loss in plate anchor embedment was si

APA, Harvard, Vancouver, ISO, and other styles

22

Raju, K. V. S. B., and B. S. Pankaja. "Horizontal Pullout Capacity of a Group of Two Vertical Square Anchors Embedded in Medium Dense Sand." Applied Mechanics and Materials 877 (February 2018): 214–23. http://dx.doi.org/10.4028/www.scientific.net/amm.877.214.

Full text

Abstract:

In the present study an attempt is made to evaluate the ultimate horizontal pullout capacity of group of two square anchors embedded in medium dense sand by conducting laboratory model tests. The size of the model box used in the present study is 1.2m lengthx0.75m width and 1.5m height. A series of experiments were conducted on single and group of anchors subjected to horizontal pullout load on mild steel square plates of size 10 cm and 15 cm were used .Clean dry local river sand was used in the present study. All the tests were carried out on dry clean sand with a relative density of 55% corr

APA, Harvard, Vancouver, ISO, and other styles

23

Sheng, Qin Zhu, Qun Xie, and Xin Wang. "Design and Analysis of Anchor Group under Eccentric Shear Loading." Advanced Materials Research 446-449 (January 2012): 3457–61. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3457.

Full text

Abstract:

Adhesive anchors are widely used as post-installed fasteners in civil engineering. A typical steel-to-concrete connection includes multiple anchors which are commonly subjected to combined moment and shear loading. Based on the assumption that all anchors take up shear load, a revised method is developed for the design of ductile anchors, which considers that only the row of most stressed anchors in the tension zone are needed to meet the elliptical interaction of tension and shear capacity requirement during the design process of anchorage group under combined shear and moment loading. The ul

APA, Harvard, Vancouver, ISO, and other styles

24

Hsu, S. T., and H. J. Liao. "Uplift behaviour of cylindrical anchors in sand." Canadian Geotechnical Journal 35, no. 1 (1998): 70–80. http://dx.doi.org/10.1139/t97-067.

Full text

Abstract:

A series of laboratory model tests and numerical analyses has been carried out to study the behaviour of vertically embedded cylindrical anchors in sand. Due to the cylindrical shape of the anchor, both the shaft friction and the end resistance have substantial contribution to the pullout capacity. But shaft friction and end resistance do not reach peak values at the same anchor displacement. As a result, analyzing the anchorage behaviour of cylindrical anchors is complicated. The pullout behaviour of the anchor is significantly influenced by the embedded depth. There exists a critical depth (

APA, Harvard, Vancouver, ISO, and other styles

25

Guo, Gang, Zhong Liu, Aiping Tang, Yibing Deng, and Jiqiang Zhang. "Model Test Research on Bearing Mechanism of Underreamed Ground Anchor in Sand." Mathematical Problems in Engineering 2018 (July 17, 2018): 1–14. http://dx.doi.org/10.1155/2018/9746438.

Full text

Abstract:

To improve the capacity of ground anchors, scholars and engineers worldwide have developed various types of underreamed anchors with expanded anchor parts. Underreamed anchors have a completely different mechanism from traditional shaft anchors. The expanded section of an underreamed anchor induces an end bearing force to endure the uplift force similar to a reversed pile. Therefore, the total resistance of an underreamed anchor includes friction and end bearing force. To clarify the bearing mechanism of underreamed anchors, a series of model tests were performed using fiber Bragg grating (FBG

APA, Harvard, Vancouver, ISO, and other styles

26

Tsuha, C. H. C., N. Aoki, G. Rault, L. Thorel, and J. Garnier. "Evaluation of the efficiencies of helical anchor plates in sand by centrifuge model tests." Canadian Geotechnical Journal 49, no. 9 (2012): 1102–14. http://dx.doi.org/10.1139/t2012-064.

Full text

Abstract:

The uplift capacity of helical anchors normally increases with the number of helical plates. The rate of capacity gain is variable, considering that the disturbance caused by the anchor installation is generally more pronounced in the soil mass above the upper plates than above the lower plates, because the upper soil layers are penetrated more times. The present investigation examines the effect of the number of helices on the performance of helical anchors in sand, based on the results of centrifuge model tests. Uplift loading tests were performed on 12 different types of piles installed in

APA, Harvard, Vancouver, ISO, and other styles

27

Nilforoush, Rasoul. "A Refined Model for Predicting Concrete-Related Failure Load of Tension Loaded Cast-in-Place Headed Anchors in Uncracked Concrete." Nordic Concrete Research 60, no. 1 (2019): 105–29. http://dx.doi.org/10.2478/ncr-2019-0091.

Full text

Abstract:

Abstract Current theoretical models for predicting the concrete cone breakout capacity of tension loaded headed anchors do not consider the influence of member thickness, size of anchor head, and orthogonal surface reinforcement. In the present study, the influence of the aforementioned parameters was studied both numerically and experimentally. Both the numerical and experimental results showed that the tensile resistance of headed anchors increases by increasing the member thickness or if orthogonal surface reinforcement is present. In addition, the anchorage capacity further increases with

APA, Harvard, Vancouver, ISO, and other styles

28

Grzesiak, Szymon, Matthias Pahn, Milan Schultz-Cornelius, and Nora Susanne Bies. "Influence of Different Fiber Dosages on the Behaviour of Façade Anchors in High-Performance Concrete." CivilEng 2, no. 3 (2021): 556–79. http://dx.doi.org/10.3390/civileng2030031.

Full text

Abstract:

The behaviour of façade anchors in high performance fiber reinforced concrete (HPFRC) has not been investigated in sufficient detail in recent years. The regulations in the European Technical Approvals also do not fully describe the load-bearing capacity of anchor systems. Due to the increase in the production of HPFRC elements, it is necessary to analyse the impact of added fibers in the concrete composition on the behaviour of anchors. In particular, the behaviour of anchors in filigree façade elements, which is one of the main application areas of the programme of polypropylene (PP) fiber-r

APA, Harvard, Vancouver, ISO, and other styles

29

Xiao, Taoli, and Yunlong He. "Experimental Study of an Inflatable Recyclable Anchor." Advances in Materials Science and Engineering 2018 (September 13, 2018): 1–10. http://dx.doi.org/10.1155/2018/6940531.

Full text

Abstract:

This paper describes an investigation into the performance and pullout capacity of a new inflatable anchor system embedded in deep excavation engineering. The proposed inflatable recyclable anchor system consists of a rubber pneumatic bag, movable steel plate, and force transmission bar, which can all be recycled after use. By conducting a number of field pullout tests, it is found that the pullout bearing capacity of the proposed anchor is related to the inflation pressure, the length of the rubber pneumatic bag, and the embedment depth. It is found that, with the exponential increase of infl

APA, Harvard, Vancouver, ISO, and other styles

30

Fang, Yan Feng, Hua Xi Gao, Wei Wei Duan, and Zhong Jian Sun. "Theoretical Analysis and Experimental Research on Upward Capacity of Screw Anchor." Advanced Materials Research 243-249 (May 2011): 3029–35. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.3029.

Full text

Abstract:

Based on eight groups of uplift tests for screw anchors with different embedded depths and different plate sizes, a method is given to compute the bearing capacity of screw anchor within critical depth in coarse sand according to analysis on force transmission route and failure characteristics. Within critical depth, bearing capacity of screw anchor is proportionate to embedded depth and the area of screw plate, and the failure surface is inverse triangle in shape. Beyond critical depth, the bearing capacity of screw anchor won’t increase with depth, and the failure surface is funnel in shape.

APA, Harvard, Vancouver, ISO, and other styles

31

Khatri, Vishwas N., and Jyant Kumar. "Effect of anchor width on pullout capacity of strip anchors in sand." Canadian Geotechnical Journal 48, no. 3 (2011): 511–17. http://dx.doi.org/10.1139/t10-082.

Full text

Abstract:

By incorporating the variation of peak soil friction angle ([Formula: see text]) with mean principal stress (σm), the effect of anchor width (B) on vertical uplift resistance of a strip anchor plate has been examined. The anchor was embedded horizontally in a granular medium. The analysis was performed using lower bound finite element limit analysis and linear programming. An iterative procedure, proposed recently by the authors, was implemented to incorporate the variation of [Formula: see text] with σm. It is noted that for a given embedment ratio, with a decrease in anchor width (B), (i) th

APA, Harvard, Vancouver, ISO, and other styles

32

Fu, Yong, Xiying Zhang, Yuping Li, et al. "Holding capacity of dynamically installed anchors in normally consolidated clay under inclined loading." Canadian Geotechnical Journal 54, no. 9 (2017): 1257–71. http://dx.doi.org/10.1139/cgj-2016-0537.

Full text

Abstract:

This paper describes a design framework for inclined tensile loading capacity (holding capacity) of dynamically installed anchors in soft clay. Centrifuge model test and numerical results indicate that, while ultimate inclined holding capacity increases with a loading angle smaller than 45° (to the vertical at anchor padeye), anchor failure is controlled predominantly by the ultimate vertical holding capacity, which can be predicted using the American Petroleum Institute method put forth in 2007 with interface friction ratio of 0.25–0.34 and 0.60–0.82 for short- and long-term conditions, respe

APA, Harvard, Vancouver, ISO, and other styles

33

Mancuso, Anthony, Francisca Belart, Ben Leshchinsky, Mark L. Russell, and James D. Kiser. "Behavior and assessment of mobile anchors in cable yarding systems." Canadian Journal of Forest Research 48, no. 11 (2018): 1382–87. http://dx.doi.org/10.1139/cjfr-2018-0269.

Full text

Abstract:

Cable yarding systems transport logs hoisted off the ground by a system of cables and a carriage that moves along the cable. Ground anchors are used at the end points to maintain sufficient tension between the two ends points of the cable and keep it in the air during operation. Traditional anchoring methods employ tree stumps, but as shorter stand rotations result in younger weaker stumps and because of the inability to visually inspect root structures to calculate a stump’s anchoring capacity, alternative methods of anchoring are being used more frequently. In this paper, the capacity of an

APA, Harvard, Vancouver, ISO, and other styles

34

Lee, Jong-Han, Eunsoo Choi, and Baik-Soon Cho. "Shear Failure Mode and Concrete Edge Breakout Resistance of Cast-In-Place Anchors in Steel Fiber-Reinforced Normal Strength Concrete." Applied Sciences 10, no. 19 (2020): 6883. http://dx.doi.org/10.3390/app10196883.

Full text

Abstract:

Concrete edge failure of a single anchor in concrete is strongly dependent on the tensile performance of the concrete, which can be greatly improved by the addition of steel fibers. This study investigated the effect of steel fibers on the shear failure mode and edge breakout resistance of anchors installed in steel fiber-reinforced concrete (SFRC) with fiber volume percentages of 0.33, 0.67, and 1.00%. The anchor used in the study was 30 mm in diameter, with an edge distance of 75 mm and embedment depth of 240 mm. In addition to the anchor specimens, beam specimens were prepared to assess the

APA, Harvard, Vancouver, ISO, and other styles

35

Tho, Kee Kiat, Zongrui Chen, Chun Fai Leung, and Yean Khow Chow. "Pullout behaviour of plate anchor in clay with linearly increasing strength." Canadian Geotechnical Journal 51, no. 1 (2014): 92–102. http://dx.doi.org/10.1139/cgj-2013-0140.

Full text

Abstract:

Plate anchors are widely adopted to provide uplift resistance for structures. For most offshore seabeds, the undrained shear strength profile can be reasonably approximated as varying linearly with depth. At present, there are two possible approximate approaches to determine uplift capacity of a square plate anchor in such a profile, but the validity of both approaches cannot be ascertained due to unavailability of a rigorous solution. This study addresses these uncertainties by establishing the capacity factors for a square anchor in a linearly increasing strength profile using a three-dimens

APA, Harvard, Vancouver, ISO, and other styles

36

Chen, S. E., and C. K. Ong. "Spectral Analysis of Surface Wave for Empirical Elastic Design of Anchored Foundations." Advances in Civil Engineering 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/635257.

Full text

Abstract:

Helical anchors are vital support components for power transmission lines. Failure of a single anchor can lead to the loss of an entire transmission line structure which results in the loss of power for downstream community. Despite being important, it is not practical to use conventional borehole method of subsurface exploration, which is labor intensive and costly, for estimating soil properties and anchor holding capacity. This paper describes the use of an empirical and elasticity-based design technique coupled with the spectral analysis of surface wave (SASW) technique to provide subsurfa

APA, Harvard, Vancouver, ISO, and other styles

37

Kumar, Jyant. "Seismic horizontal pullout capacity of vertical anchors in sands." Canadian Geotechnical Journal 39, no. 4 (2002): 982–91. http://dx.doi.org/10.1139/t02-021.

Full text

Abstract:

The problem of finding the horizontal pullout capacity of vertical anchors embedded in sands with the inclusion of pseudostatic horizontal earthquake body forces, was tackled in this note. The analysis was carried out using an upper bound limit analysis, with the consideration of two different collapse mechanisms: bilinear and composite logarithmic spiral rupture surfaces. The results are presented in nondimensional form to find the pullout resistance with changes in earthquake acceleration for different combinations of embedment ratio of the anchor (λ), friction angle of the soil (φ;), and th

APA, Harvard, Vancouver, ISO, and other styles

38

Li, Ying, Dong Zi Pan, and Lian Zhang. "Experimental Investigation on Anchorage Mechanisms of Self-Locked Anchor under Combined Tension and Shear." Advanced Materials Research 163-167 (December 2010): 3600–3603. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3600.

Full text

Abstract:

Self-locked anchor is a new type of underreamed anchor, and which is more and more frequently used in both new construction and structural retrofitting or strengthening projects. Nevertheless, current design codes do not contain suitable design recommendations for these anchors. This study investigates the anchorage mechanisms of self-locked anchor under combined tension and shear loadings. The experimental parameters mainly include anchor diameters (Φ16 and Φ20) and loading angles (0°, 30°, 45°, and 60°). The present results indicate the characters of axial and transverse deformations, the ul

APA, Harvard, Vancouver, ISO, and other styles

39

Ilamparuthi, K., E. A. Dickin, and K. Muthukrisnaiah. "Experimental investigation of the uplift behaviour of circular plate anchors embedded in sand." Canadian Geotechnical Journal 39, no. 3 (2002): 648–64. http://dx.doi.org/10.1139/t02-005.

Full text

Abstract:

An experimental investigation of the uplift behaviour of relatively large scale model circular plate anchors up to 400 mm in diameter embedded in loose, medium-dense, and dense dry sand is described. Uplift capacity is strongly influenced by anchor diameter, embedment ratio, and sand density. In tests on shallow half-cut models, a gently curved rupture surface emerged from the top edge of the anchor to the sand surface at approximately ϕ/2 to the vertical, where ϕ is the angle of shearing resistance. For a deep anchor, a balloon-shaped rupture surface emerged at 0.8ϕ to the vertical immediatel

APA, Harvard, Vancouver, ISO, and other styles

40

Cañizal, Fernando, Jorge Castro, Jorge Cañizal, and César Sagaseta. "Pull-Out Capacity and Failure Mechanisms of Strip Anchors in Clay." Energies 13, no. 15 (2020): 3853. http://dx.doi.org/10.3390/en13153853.

Full text

Abstract:

Plate anchors are a well-established solution for supporting the efforts of floating platforms for wind and marine renewable energies. The behavior of ultrathin rigid plate anchors buried in purely cohesive soils under undrained and plane-strain conditions is analyzed. As already known, a dimensional analysis shows that the pull-out capacity of the anchor may be expressed using a weightless break-out factor (Nc0) that only depends on the ratio between the depth and the anchor width (H/B). Using finite element analyses, tabulated values of the weightless break-out factor are provided in this pa

APA, Harvard, Vancouver, ISO, and other styles

41

Yan, Shi, Qi Le Yu, Hai Tao Du, Bi Cheng Song, and Han Yan. "Performance and Failure Pattern on Enlarged Bottom Anchor Bolt under Pullout Loading." Applied Mechanics and Materials 448-453 (October 2013): 1701–6. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.1701.

Full text

Abstract:

The pullout test of an anchor bolt is very important for the anchorage technology. Adopting enlarged bottom anchor bolts to wind turbine foundations can not only take advantage of the mechanical property of rock mass, but also have good security and economical efficiency. The finite element analysis software ANSYS is used in this paper to numerically analyze a single enlarged bottom anchor bolt under pullout loading, to research the performance and failure pattern of the anchor bolt. The anchor bolt side friction is extracted to understand the stress distribution of the bolt. By the analysis o

APA, Harvard, Vancouver, ISO, and other styles

42

Lee, Kyoung Chan, Il-Wha Lee, and Seong-Cheol Lee. "Biaxial Shear Load Capacity of Anchor System for Quick-Hardening Track on Railway Bridges." Advances in Civil Engineering 2018 (September 4, 2018): 1–14. http://dx.doi.org/10.1155/2018/9179343.

Full text

Abstract:

Quick-hardening railway track was developed to rapidly convert old-style ballast track to slab track in order to improve its maintainability and ride comfort. On bridges, quick-hardening track is applied in a segmented structure to reduce the temperature constraint, and anchors at the centers of the segments securely couple the track to the bridge. In this study, an anchor system is proposed that facilitates fast construction, and two designs for the proposed anchor systems are provided along with experimental test results of the same. Two anchor system designs were developed to allow for the

APA, Harvard, Vancouver, ISO, and other styles

43

Zhang, Xin, and Jin Chao Yue. "Deformation Mechanism of Plate Anchor in Sand." Advanced Materials Research 250-253 (May 2011): 1469–73. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.1469.

Full text

Abstract:

Plate anchor is one of the most popular types of anchors widely used in geotechnical engineering. Reliable prediction of the ultimate uplift resistance of plate anchors requires its failure modes well understood. In this paper, an image-based deformation technique, the digital image cross-correlation (DIC), is used to measure the sand deformations around a scaled semi-circular anchor during uplifting. A series of tests have been conducted to investigate the failure modes of plate anchors in both loose and dense sand. Two distinctively different failure modes are measured by using DIC in both l

APA, Harvard, Vancouver, ISO, and other styles

44

Ghaly, Ashraf, and Adel Hanna. "Experimental and theoretical studies on installation torque of screw anchors." Canadian Geotechnical Journal 28, no. 3 (1991): 353–64. http://dx.doi.org/10.1139/t91-046.

Full text

Abstract:

Experimental and theoretical studies on the torque required to install screw anchors in sand are presented. Tests were conducted on five models of screw anchors with different geometry to study the effect of the shape of the screw element on the performance of the anchor during installation. Anchors were installed into prepared layers of dense, medium, and loose sand. An experimental setup was instrumented to allow the measurement of the total pullout load, the upward displacement, the sand surface deflection, installation torque value, and the stress development in the sand layer during all p

APA, Harvard, Vancouver, ISO, and other styles

45

Hu, Wen Chi, and Shih Tsung Hsu. "Numerical Modeling of Earth Structures: Frictional Anchors in Sand." Advanced Materials Research 486 (March 2012): 214–20. http://dx.doi.org/10.4028/www.scientific.net/amr.486.214.

Full text

Abstract:

This research performed a series of triaxial tests on sandy specimens to obtain the parameters needed for a constitutive model. The model is capable to simulate the strain hardening/softening and the volumetric dilation of sandy soil during stressing. The model and the related parameters were then employed in the commercial software FLAC2D to analyze the uplift behavior of various frictional anchors in sandy soil. Analysis results indicate that the friction stress along the fixed end of the anchor with a long fixed length exhibits progressive yielding under not only for a tension but also for

APA, Harvard, Vancouver, ISO, and other styles

46

Sivakumar, V., B. C. O'Kelly, M. R. Madhav, C. Moorhead, and B. Rankin. "Granular anchors under vertical loading – axial pull." Canadian Geotechnical Journal 50, no. 2 (2013): 123–32. http://dx.doi.org/10.1139/cgj-2012-0203.

Full text

Abstract:

Granular anchors are a relatively new concept in ground engineering with relatively little known regarding their load–displacement behaviour, failure modes, ultimate pullout capacity, and also potential applications. A granular anchor consists of three main components: a base plate, tendon, and compacted granular backfill. The tendon is used to transmit the applied load to the base plate, which compresses the granular material to form the anchor. A study of the load–displacement response and ultimate pullout capacity of granular anchors constructed in intact lodgement till and made ground depo

APA, Harvard, Vancouver, ISO, and other styles

47

Clark, J. I., S. McKeown, and C. B. Crawford. "Field measurements of the behavior of inclined footings on a natural slope." Canadian Geotechnical Journal 25, no. 4 (1988): 662–74. http://dx.doi.org/10.1139/t88-077.

Full text

Abstract:

Full-scale field testing for the bearing capacity and stability of inclined footings with anchors was carried out on a colluvial slope near the east portal of the Rogers Pass tunnel in British Columbia. The 35° natural slope was composed of granular material with an angle of shearing resistance [Formula: see text]. A series of small footings (area 1.14 m2) was loaded with anchor loads only and one large footing (area 2.66 m2) was loaded with both anchor and vertical loads up to 2100 kN. Bearing capacity coefficients were back calculated and compared with coefficients from bearing capacity theo

APA, Harvard, Vancouver, ISO, and other styles

48

Ha, Sang-Su. "Pullout capacity Evaluation of anchor and anchor system development to prevent release of anchors in expansion joint." Journal of the Korean Institute of Building Construction 10, no. 1 (2010): 65–72. http://dx.doi.org/10.5345/jkic.2010.10.1.065.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Ghaly, Ashraf, and Adel Hanna. "Response of anchors to variations in displacement-based loading." Canadian Geotechnical Journal 40, no. 3 (2003): 694–701. http://dx.doi.org/10.1139/t03-003.

Full text

Abstract:

The results of an experimental investigation on the effect of variations in displacement-based loading on the pullout capacity of anchors are presented. A single-pitch, screw helical anchor was used in the testing. The tests were conducted in dry, well-graded, dense, medium, and loose sands with relative densities of 79, 47, and 19%, respectively. Anchors were installed to, and tested at, shallow and deep depths. Measurements of ultimate pullout load and displacement at failure were made. The values of time-to-failure and mean loading rate were calculated and presented. The results of this stu

APA, Harvard, Vancouver, ISO, and other styles

50

Ozturk, Murat. "Estimation of Tensile Capacity of Single Anchors Including Edge Effect Using Neural Networks." Advanced Materials Research 747 (August 2013): 424–28. http://dx.doi.org/10.4028/www.scientific.net/amr.747.424.

Full text

Abstract:

The demand for more flexibility in the design and strengthening of concrete structures has resulted in an increased use of anchoring systems. Adhesive anchors are widely used in seismic strengthening applications to add new structural members or sections to existing concrete members. To safely design such anchors, it is very important to know their tensile capacity under axial tensile forces. This paper explores the pullout capacity of single adhesive anchors loaded in tension in un-cracked concrete. To this end 142 single anchor tests including edge effect (located near a concrete edge) were

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!