American Research Journal of Civil and Structural Engineering最新文献

{"title":"Using linear Chouquet integral algorithm to design optimal time-cost model in large construction projects","authors":"Hamid Jafari Nia, K. Ostad‑Ali‑Askari, H. Babaali","doi":"10.21694/2577-5944.20001","DOIUrl":"https://doi.org/10.21694/2577-5944.20001","url":null,"abstract":"Nowadays, the problem of scheduling and executing projects with the least cost and time has become one of the main concerns of project managers. In this regard, researchers have used different methods and patterns. One of these methods is to use concurrent engineering in projects. Simultaneous engineering means the creation of a project schedule for projects based on existing units and human resources so that a synchronous rule can be applied to the project so that the project can be completed in less time. Modeling time and cost in large-scale construction projects is actually complicated and complicated. These complexities actually increase the risk of time and cost in the project. In this research, a new method called Chouquet integral algorithm is used to analyze time and cost equations. The Chouquet integral is a method used to analyze and linearize complex equations. The proposed method is implemented on an executable model in 2017 and analyzed and analyzed in MATLAB software. The results show that the error rate of time and cost in the construction model resulted in a reduction of 27 and 14%, respectively. Commonly, the structure developments will take an extended period to broad. In this background approximating structure costs are main stages for plan estimators, independents. The evaluating procedure is a stimulating occupation owing to variations in building features and that trend rising over the extended period. The movement time-cost association has for the most portion been presumed to be lined, but, a rare revisions have recommended that this is not essentially the situation in exercise. These prototypes carefully represent the most public circumstances happening throughout construction developments. The benefits of these models are that they tolerate for together separate and constant, in addition to deterministic outlines. Moreover, the amount of possessions needed for deafening the movement can be measured. Contrasts amongst the models and additional new fast-following model from the procedure are debated and a Chouquet integral algorithm is applied for a fictional usage instance including together density methods.","PeriodicalId":127632,"journal":{"name":"American Research Journal of Civil and Structural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128837713","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}

{"title":"Numerical Analysis of Hydraulic Flow Characteristics in Prismatic Compound Channels Using Flow3D Software","authors":"Z. Askari, S. Khodashenas, K. Esmaili, Mohsen Golian, K. Ostad‑Ali‑Askari, V. Singh, N. Dalezios","doi":"10.21694/2577-5944.19001","DOIUrl":"https://doi.org/10.21694/2577-5944.19001","url":null,"abstract":"An important aspect of rivers’ hydraulics is the lateral distribution of velocity and boundary shear stress. The rivers appear to be in the form of a compound cross section at their extreme ends, such that water overflows from the main channel of the river and enters the floodplains during floods. Due to their proximity to the river bank and their high latitude and fertile soil, floodplains have always been considered for various recreational, commercial, agricultural and residential purposes. Therefore, the awareness of the flow hydraulic in the floodplains is essential for the protection of humans, as well as the structures and installations in them. American Research Journal of Civil And Structural Engineering ISSN (Online): 2577-5944 Volume 3, Issue 1, pp: 1-10 Research Article Open Access","PeriodicalId":127632,"journal":{"name":"American Research Journal of Civil and Structural Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132798893","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}