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Static Analysis and Pseudostatic Slope Stability 静力分析与拟静力边坡稳定性
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2015-07-02 DOI: 10.5281/ZENODO.1107487
Meftah Ali
{"title":"Static Analysis and Pseudostatic Slope Stability","authors":"Meftah Ali","doi":"10.5281/ZENODO.1107487","DOIUrl":"https://doi.org/10.5281/ZENODO.1107487","url":null,"abstract":"This article aims to analyze the static stability and\u0000pseudostatic slope by using different methods such as: Bishop\u0000method, Junbu, Ordinary, Morgenstern-price and GLE. The two\u0000dimensional modeling of slope stability under various loading as: the\u0000earthquake effect, the water level and road mobile charges. The\u0000results show that the slope is stable in the static case without water,\u0000but in other cases, the slope lost its stability and give unstable. The\u0000calculation of safety factor is to evaluate the stability of the slope\u0000using the limit equilibrium method despite the difference between the\u0000results obtained by these methods that do not rely on the same\u0000assumptions. In the end, the results of this study illuminate well the\u0000influence of the action of water, moving loads and the earthquake on\u0000the stability of the slope.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131556808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
High Volume Fly Ash Concrete for Paver Blocks 摊铺机砌块用高体积粉煤灰混凝土
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2014-02-01 DOI: 10.5281/ZENODO.1091157
S. N. Sachdeva, Vanita Aggarwal, S. M. Gupta
{"title":"High Volume Fly Ash Concrete for Paver Blocks","authors":"S. N. Sachdeva, Vanita Aggarwal, S. M. Gupta","doi":"10.5281/ZENODO.1091157","DOIUrl":"https://doi.org/10.5281/ZENODO.1091157","url":null,"abstract":"Use of concrete paver blocks is becoming increasingly popular. They are used for paving of approaches, paths and parking areas including their application in pre-engineered buildings and pavements. This paper discusses the results of an experimental study conducted on Fly Ash Concrete with the aim to report its suitability for concrete paver blocks. In this study, the effect of varying proportions of fly ash, 20% to 40%, on compressive strength and flexural strength of concrete has been evaluated. The mix designs studied are M-30, M-35, M-40 and M-50. It is observed that all the fly ash based mixes are able to achieve the required compressive and flexural strengths. In comparison to control mixes, the compressive and flexural strengths of the fly ash based mixes are found to be slightly less at 7-days and 28 days and a little more at 90 days.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122751872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Investigation on the Behavior of Conventional Reinforced Coupling Beams 常规钢筋耦合梁的性能研究
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-11-02 DOI: 10.1615/COMPMECHCOMPUTAPPLINTJ.V4.I4.20
A. Walunj, Dipendu Bhunia, Samarth Gupta, P. Gupta
{"title":"Investigation on the Behavior of Conventional Reinforced Coupling Beams","authors":"A. Walunj, Dipendu Bhunia, Samarth Gupta, P. Gupta","doi":"10.1615/COMPMECHCOMPUTAPPLINTJ.V4.I4.20","DOIUrl":"https://doi.org/10.1615/COMPMECHCOMPUTAPPLINTJ.V4.I4.20","url":null,"abstract":"— Coupled shear walls consist of two shear walls connected intermittently by beams along the height. The behavior of coupled shear walls is mainly governed by the coupling beams. The coupling beams are designed for ductile inelastic behavior in order to dissipate energy. The base of the shear walls may be designed for elastic or ductile inelastic behavior. The amount of energy dissipation depends on the yield moment capacity and plastic rotation capacity of the coupling beams. In this paper, an analytical model of coupling beam was developed to calculate the rotations and moment capacities of coupling beam with conventional reinforcement.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128182337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Experimental Study of Strength Recovery from Residual Strength on Kaolin Clay 高岭土残余强度恢复试验研究
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-11-01 DOI: 10.5281/ZENODO.1089361
D. Bhat, Netra P. Bhandery, R. Yatabe
{"title":"Experimental Study of Strength Recovery from Residual Strength on Kaolin Clay","authors":"D. Bhat, Netra P. Bhandery, R. Yatabe","doi":"10.5281/ZENODO.1089361","DOIUrl":"https://doi.org/10.5281/ZENODO.1089361","url":null,"abstract":"Strength recovery effect from the residual-state of shear is not well address in scientific literature. Torsional ring shear strength recovery tests on kaolin clay using rest periods up to 30 days are performed at the effective normal stress 100kN/m. Test results shows that recovered strength measured in the laboratory is slightly noticeable after rest period of 3 days, but recovered strength lost after very small shear displacement. This paper mainly focused on the strength recovery phenomenon from the residual strength of kaolin clay based on torsional ring shear test results. Mechanisms of recovered strength are also discussed. Keywords—Kaolin clay, Residual strength, Strength recovery, Torsional ring shear test.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128718932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Influence of Tether Length in the Response Behavior of Square Tension Leg Platform in Regular Waves 绳长对方形张拉腿平台在规则波作用下响应特性的影响
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-11-01 DOI: 10.5574/IJOSE.2014.4.1.019
A. El-gamal, Ashraf M M Essa, A. M. Ismail
{"title":"Influence of Tether Length in the Response Behavior of Square Tension Leg Platform in Regular Waves","authors":"A. El-gamal, Ashraf M M Essa, A. M. Ismail","doi":"10.5574/IJOSE.2014.4.1.019","DOIUrl":"https://doi.org/10.5574/IJOSE.2014.4.1.019","url":null,"abstract":"the tension leg platform (TLP) is a vertically moored structure with excess buoyancy. The TLP is regarded as moored structure in horizontal plan, while inherit stiffness of fixed platform in vertical plane. In this paper, a numerical study using modified Morison equation was carried out in the time domain to investigate the influence of nonlinearities due to hydrodynamic forces and the coupling effect between surge, sway, heave, roll, pitch and yaw degrees of freedom on the dynamic behavior of TLP's. The stiffness of the TLP was derived from a combination of hydrostatic restoring forces and restoring forces due to cables and the nonlinear equations of motion were solved utilizing Newmark’s beta integration scheme. The effect of tethers length and wave characteristics such as wave period and wave height on the response of TLP's was evaluated. Only uni-directional waves in the surge direction was considered in the analysis. It was found that for short wave periods (i.e. 10 sec.), the surge response consisted of small amplitude oscillations about a displaced position that is significantly dependent on tether length, wave height; whereas for longer wave periods, the surge response showed high amplitude oscillations about a displaced position that is significantly dependent on tether length.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128308482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Geochemistry of Coal Ash in the Equatorial Wet Disposal System Environment 赤道湿式处理系统环境下煤灰的地球化学特征
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-11-01 DOI: 10.5281/zenodo.1089363
P. Kolay, Harwant Singh
{"title":"Geochemistry of Coal Ash in the Equatorial Wet Disposal System Environment","authors":"P. Kolay, Harwant Singh","doi":"10.5281/zenodo.1089363","DOIUrl":"https://doi.org/10.5281/zenodo.1089363","url":null,"abstract":"The coal utilization in thermal power plants in Malaysia has increased significantly which produces an enormous amount of coal combustion by-product (CCBP) or coal ash and poses severe disposal problem. As each coal ash is distinct, this study presents the geochemistry of the coal ash, in particular fly ash, produced from the combustion of local coal from Kuching Sarawak, Malaysia. The geochemical composition of the ash showed a high amount of silica, alumina, iron oxides and alkalies which was found to be a convenient starting material for the hydrothermal synthesis of zeolites with the higher Na2O percentage being a positive factor for its alkaline activation; while the mineral phases are mainly quartz, mullite, calcium oxide, silica, and iron oxide hydrate. The geochemical changes upon alkali activation that can be predicted in a similar type of ash have been described in this paper. The result shows that this particular ash has a good potential for a high value industrial product like zeolites upon alkali activation. Keywords—Coal ash, chemical composition, mineralogical composition, alkali activation, SEM.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121809024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural Safety Evaluation of Zip-Line Due to Dynamic Impact Load 动态冲击荷载作用下滑索结构安全性评价
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-10-01 DOI: 10.5281/ZENODO.1088794
B. Ju, Jae Sang Kim, W. Jung
{"title":"Structural Safety Evaluation of Zip-Line Due to Dynamic Impact Load","authors":"B. Ju, Jae Sang Kim, W. Jung","doi":"10.5281/ZENODO.1088794","DOIUrl":"https://doi.org/10.5281/ZENODO.1088794","url":null,"abstract":"In recent year, with recent increase of interest towards leisure sports, increased number of Zip-Line or Zip built. Many researches have been actively conducted on the emphasis of the cable and the wire at the bridge. However, very limite researches have been conducted on the safety of the Zip structure. In fact, fall accidents from Zip-Line have been reported frequently. Therefore, in this study, the structural safety of Zip under dynamic impact loading condition were evaluated previously installed steel cable for leisure (Zip 3-dimensional nonlinear Finite Element (FE) model. The result from current study would assist assurance of systematic stability of Zip-Line. Keywords—Zip-Line, Wire, Cable, 3D FE Model","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"324 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126398715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Behavior of Concrete Slab Track on Asphalt Trackbed Subjected to Thermal Load 沥青轨道床上混凝土板轨在热载荷作用下的性能
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-10-01 DOI: 10.5281/ZENODO.1088796
W. Jung, Seong-Hyeok Lee, Jin Wook Lee, B. Ju
{"title":"Behavior of Concrete Slab Track on Asphalt Trackbed Subjected to Thermal Load","authors":"W. Jung, Seong-Hyeok Lee, Jin Wook Lee, B. Ju","doi":"10.5281/ZENODO.1088796","DOIUrl":"https://doi.org/10.5281/ZENODO.1088796","url":null,"abstract":"— Concrete track slab and asphalt trackbed are being introduced in Korea for providing good bearing capacity, durability to the track and comfortable rideness to passengers. Such a railway system has been designed by the train load so as to ensure stability. But there is lack of research and design for temperature changes which influence the behavior characteristics of concrete and asphalt. Therefore, in this study, the behavior characteristics of concrete track slab subjected to varying temperatures were analyzed through structural analysis using the finite element analysis program. The structural analysis was performed by considering the friction condition on the boundary surfaces in order to analyze the interaction between concrete slab and asphalt trackbed. As a result, the design of the railway system should be designed by considering the interaction and temperature changes between concrete track slab and asphalt trackbed.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123161973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Seismic Excitation of Steel Frame Retrofitted by a Multi-Panel PMC Infill Wall 多层PMC填充墙加固钢框架的地震激励
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-10-01 DOI: 10.5281/zenodo.1088792
B. Ju, W. Jung
{"title":"Seismic Excitation of Steel Frame Retrofitted by a Multi-Panel PMC Infill Wall","authors":"B. Ju, W. Jung","doi":"10.5281/zenodo.1088792","DOIUrl":"https://doi.org/10.5281/zenodo.1088792","url":null,"abstract":"— A multi-panel PMC infilled system, using polymer matrix composite (PMC) material, was introduced as new conceptual design for seismic retrofitting. A proposed multi panel PMC infilled system was composed of two basic structural components: inner PMC sandwich infills and outer FRP damping panels. The PMC material had high stiffness-to-weight and strength-to-weight ratios. Therefore, the addition of PMC infill panels into existing structures would not significantly alter the weight of the structure, while providing substantial structural enhancement. In this study, an equivalent linearized dynamic analysis for a proposed multi-panel PMC infilled frame was performed, in order to assess their effectiveness and their responses under the simulated earthquake loading. Upon comparing undamped (without PMC panel) and damped (with PMC panel) structures, numerical results showed that structural damping with passive interface damping layer could significantly enhance the seismic response.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"167 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134097119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Study on the Creep Characteristics of FRC Base for Composite Pavement System 复合路面体系FRC基层蠕变特性试验研究
World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering Pub Date : 2013-09-03 DOI: 10.5281/zenodo.1338186
W. Jung, Sung-Yong Choi, Young-hwan Park
{"title":"Experimental Study on the Creep Characteristics of FRC Base for Composite Pavement System","authors":"W. Jung, Sung-Yong Choi, Young-hwan Park","doi":"10.5281/zenodo.1338186","DOIUrl":"https://doi.org/10.5281/zenodo.1338186","url":null,"abstract":"— The composite pavement system considered in this paper is composed of a functional surface layer, a fiber reinforced asphalt middle layer and a fiber reinforced lean concrete base layer. The mix design of the fiber reinforced lean concrete corresponds to the mix composition of conventional lean concrete but reinforced by fibers. The quasi-absence of research on the durability or long-term performances (fatigue, creep, etc.) of such mix design stresses the necessity to evaluate experimentally the long-term characteristics of this layer composition. This study tests the creep characteristics as one of the long-term characteristics of the fiber reinforced lean concrete layer for composite pavement using a new creep device. The test results reveal that the lean concrete mixed with fiber reinforcement and fly ash develops smaller creep than the conventional lean concrete. The results of the application of the CEB-FIP prediction equation indicate that a modified creep prediction equation should be developed to fit with the new mix design of the layer.","PeriodicalId":259752,"journal":{"name":"World Academy of Science, Engineering and Technology, International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125890073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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