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Investigation of large-diameter flange joint with soft-gasket 带软垫片的大直径法兰连接的研究
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-02-10 DOI: 10.14256/jce.2984.2020
Đorđe E Jovanović, Igor Džolev
{"title":"Investigation of large-diameter flange joint with soft-gasket","authors":"Đorđe E Jovanović, Igor Džolev","doi":"10.14256/jce.2984.2020","DOIUrl":"https://doi.org/10.14256/jce.2984.2020","url":null,"abstract":"This study focuses on behaviour of the flanged joint with a soft rubber gasket, which is a common type of gasket for evaporator structures. The assembled structure is tested according to EN 13445-3, and strain values are measured using strain gauges. The numerical analysis in ABAQUS comprises several models with different levels of detail. These models are calibrated according to test data. Recommendations regarding the model complexity that is required to obtain satisfactory prediction of non-linear behaviour of flange joints are presented and documented.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66968618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fragility and robustness analysis of a multistorey RC building 多层钢筋混凝土建筑的脆弱性和鲁棒性分析
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-02-10 DOI: 10.14256/jce.3036.2020
M. Čokić, R. Folić
{"title":"Fragility and robustness analysis of a multistorey RC building","authors":"M. Čokić, R. Folić","doi":"10.14256/jce.3036.2020","DOIUrl":"https://doi.org/10.14256/jce.3036.2020","url":null,"abstract":"The robustness of a reinforced concrete (RC) five-storey building (frame system stiffened by walls) is analysed in the paper. A high ductility class structure is designed in accordance with structural Eurocodes. The response of the structure to eight different scenarios of the ground floor vertical element loss is analysed. Nonlinear Static Analysis (NSA) and Nonlinear Dynamic Analysis (NDA) methods are used for the robustness analysis. Fragility curves of the building are derived from statistical analysis of these results. The values obtained through NSA and NDA, damage limit states of the system, and fragility curves, are compared. The influence of the position of the removed element on robustness of the structure is also analysed.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66968168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Testing noncohesive geogrid-reinforced soil in triaxial shear apparatus under cyclic loading 循环荷载作用下非粘性土工格栅加筋土的三轴剪切试验
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-02-10 DOI: 10.14256/jce.3039.2020
S. Lakušić
{"title":"Testing noncohesive geogrid-reinforced soil in triaxial shear apparatus under cyclic loading","authors":"S. Lakušić","doi":"10.14256/jce.3039.2020","DOIUrl":"https://doi.org/10.14256/jce.3039.2020","url":null,"abstract":"In road base layers, geogrids assume the reinforcement or stabilization function where good interaction between geogrid and unbound base material is important. The cyclic triaxial test can be used for analysing interaction between geogrid and unbound base material. The paper includes an overview of research where cyclic triaxial test is primarily used for assessing the influence of parameters such as geogrid stiffness, geometry and aperture size, position and number of geogrid layers, on the interaction with the base layer material. The cyclic triaxial test can be used to determine contribution the geogrid application in non-cohesive materials has on the reduction of permanent deformations.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66968642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of remotely sensed precipitation product in a hydrological model of the Bednja watershed 贝德佳流域水文模型遥感降水产品评价
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-01-01 DOI: 10.14256/jce.3055.2020
Petar Mrakužić, Hrvoje Meaški
{"title":"Evaluation of remotely sensed precipitation product in a hydrological model of the Bednja watershed","authors":"Petar Mrakužić, Hrvoje Meaški","doi":"10.14256/jce.3055.2020","DOIUrl":"https://doi.org/10.14256/jce.3055.2020","url":null,"abstract":"In this paper, a statistical and spatial analysis of precipitation for the period 2000-2018 for the Bednja basin was performed, were the measured data from meteorological and/or rainfall stations of Croatian Meteorological and Hydrological Service (DHMZ) were compared with the data in form of remotely sensed precipitation product - CHIRPS (Climate Hazards Group InfraRed Precipitation with Station). The results of the analysis in the form of the annual sum, monthly distribution within the year and the spatial distribution and input data ratio over the basin show a good correlation between the measured and remotely sensed precipitation. In order to further evaluate the quality of the remotely sensed product, a SWAT hydrological runoff model was created.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66968914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Prefabricated aluminium halls 预制铝制大厅
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-01-01 DOI: 10.14256/jce.2627.2019
I. Curkovic, Vorgefertigte Aluminiumhallen, Davor Skejić, Domagoj Orehovec
{"title":"Prefabricated aluminium halls","authors":"I. Curkovic, Vorgefertigte Aluminiumhallen, Davor Skejić, Domagoj Orehovec","doi":"10.14256/jce.2627.2019","DOIUrl":"https://doi.org/10.14256/jce.2627.2019","url":null,"abstract":"Prefabricated aluminium halls are usually temporary structures with multiple uses. Their biggest advantage is low weight resulting in lower transport costs and allowing for quick assembly. Today, there is a growing demand for aluminium halls to become permanent structures, and therefore, in meeting the requirements of EN 199x norm series, it is necessary to optimize the calculation aspect of conventional structural systems with reinforced bolted joints. An overview of the most common structural systems, typical aluminium profiles and joints with steel reinforcements, as well as a common approach for design and assembly, is presented in the paper.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66966712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Experimental and Numerical Investigation of Steel Sections under Impact Effect 冲击作用下钢截面的试验与数值研究
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2021-01-01 DOI: 10.14256/jce.2876.2020
Engin Gücüyen, Erkan Kantar, R. T. Erdem, M. B. Alıcıoğlu
{"title":"Experimental and Numerical Investigation of Steel Sections under Impact Effect","authors":"Engin Gücüyen, Erkan Kantar, R. T. Erdem, M. B. Alıcıoğlu","doi":"10.14256/jce.2876.2020","DOIUrl":"https://doi.org/10.14256/jce.2876.2020","url":null,"abstract":"Experimental and numerical behaviour of steel test specimens with various types of joints is investigated in this study. A drop weight test setup with necessary test equipment is used for this purpose. The mass and drop height of the hammer is taken to be constant so that the same impact energy can be applied on test specimens. The acceleration, displacement, impact load, drop numbers and drop durations, are obtained through experimental study. In addition, development of damage to test specimens is observed during tests. Numerical analyses of behaviour of test specimens under impact load are also conducted to verify test results using the Abaqus software, and a comparison of results is made.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66967815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative analysis of tripod offshore structure 三脚架海上构造的对比分析
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2020-12-01 DOI: 10.14256/jce.2848.2019
Ümit Gökkuş
{"title":"Comparative analysis of tripod offshore structure","authors":"Ümit Gökkuş","doi":"10.14256/jce.2848.2019","DOIUrl":"https://doi.org/10.14256/jce.2848.2019","url":null,"abstract":"Marine structures are nowadays used in a variety of ways. The analysis of a tripod-type offshore structure sixty m in total height is performed in this study. In addition to operation-related loads, the structure is also under the effect of wind and wave loads. While the Eurocode velocity profile is used to calculate wind forces, the Airy wave velocity profile is utilized to determine wave forces. The model is created by a finite elements analysis program, and is composed of fluid and structural parts. The interaction of the parts is ensured by Coupled Eulerian Lagrangian (CEL) technique.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66967675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Microstructural characteristics of mortars prepared by hot lime mix 热石灰混合料砂浆的微观结构特性
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2020-12-01 DOI: 10.14256/jce.2892.2020
Kerem Şerifaki, Elif Uğurlu Sağın, H. Böke
{"title":"Microstructural characteristics of mortars prepared by hot lime mix","authors":"Kerem Şerifaki, Elif Uğurlu Sağın, H. Böke","doi":"10.14256/jce.2892.2020","DOIUrl":"https://doi.org/10.14256/jce.2892.2020","url":null,"abstract":"The effect of lime characteristics and hot lime mix method on hydraulic, microstructural and mechanical properties of mortars is determined by producing mortars from quicklimes of two different marbles and two limestones. Results of SEM-EDS, XRD and TGA analyses reveal that the porous microstructure of mortars and spongy texture of calcite crystals are the indicators of the hot lime mix method. This study shows that characteristics of limestones used for the production of limes, as well as the preparation method, directly affect hydraulic, mechanical and microstructural properties of mortars.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66967961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Strengthening timber-concrete composite girders with prestressed reinforcement 预应力加固木-混凝土组合梁
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2020-12-01 DOI: 10.14256/jce.2784.2019
Emir Maslak, D. Stojić, D. Drenić, E. Mešić, R. Cvetković
{"title":"Strengthening timber-concrete composite girders with prestressed reinforcement","authors":"Emir Maslak, D. Stojić, D. Drenić, E. Mešić, R. Cvetković","doi":"10.14256/jce.2784.2019","DOIUrl":"https://doi.org/10.14256/jce.2784.2019","url":null,"abstract":"Timber-concrete composite girders are a modern type of structure. They are formed by composite connection of a timber and concrete girder. They are designed in such a way that the concrete part of the girder is placed in the compression zone and the timber part of the girder in the tension zone. Various types of shear connectors are used for establishing this connection: from mechanical ones (bolts, nails, perforated plates, parts of steel sections, etc.) to chemical ones (various types of glue). The possibility of active strengthening of such girders with prestressed reinforcement is investigated in this paper. One possibility of applying external prestressing force is presented. Some strengthened-girder test results are presented and compared with results for similar girders but without strengthening.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"52 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66967570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical flexural properties of concrete with melt-extract stainless steel fibres 熔融萃取不锈钢纤维混凝土的机械弯曲性能
IF 1.1 4区 工程技术
Gradevinar Pub Date : 2020-12-01 DOI: 10.3929/ETHZ-B-000467401
P. Blagojević, N. Blagojević, D. Kukaras, D. Živković, Aleksandar Šutanovac
{"title":"Mechanical flexural properties of concrete with melt-extract stainless steel fibres","authors":"P. Blagojević, N. Blagojević, D. Kukaras, D. Živković, Aleksandar Šutanovac","doi":"10.3929/ETHZ-B-000467401","DOIUrl":"https://doi.org/10.3929/ETHZ-B-000467401","url":null,"abstract":"An experimental study is performed to evaluate the effect of melt-extract stainless steel fibres on mechanical and flexural properties of concrete. A total of seventy-two specimens are used to determine an optimum fibre dosage and mechanical properties of plain and steel fibre reinforced concrete. Twelve full-scale beam specimens are then exposed to four-point bending tests. The effect of melt-extract stainless steel fibres on flexural behaviour of beams is quantified in this testing. A beam specimen is exposed to four-point bending, after being subjected to 15000 cycles of fatigue load. Pre- and post-fatigue flexural properties of beams with melt-extract steel fibres are compared and discussed.","PeriodicalId":50415,"journal":{"name":"Gradevinar","volume":"72 1","pages":"1155-1164"},"PeriodicalIF":1.1,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70175333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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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