Civil and Environmental Engineering最新文献_第4页

Waste Bank Policy as Social Engineering Based on the Green Economy Concept in the Malang City, Indonesia 印尼马朗市基于绿色经济理念的社会工程废弃银行政策

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0024

S. Muljaningsih, N. Khusniyah Indrawati, Dien Amalina Nur Asrofi

引用次数: 0

Addressing the Causes and Effects of Poor Communication in the Jordanian Construction Industry: A Study on Improving Project Performance 解决约旦建筑行业沟通不良的原因和影响:提高项目绩效的研究

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0014

Akram Suleiman, Hatem H. Almasaeid, Nidal M. Hussein, Jafar Abahre

{"title":"Addressing the Causes and Effects of Poor Communication in the Jordanian Construction Industry: A Study on Improving Project Performance","authors":"Akram Suleiman, Hatem H. Almasaeid, Nidal M. Hussein, Jafar Abahre","doi":"10.2478/cee-2023-0014","DOIUrl":"https://doi.org/10.2478/cee-2023-0014","url":null,"abstract":"Abstract The construction sector in Jordan faces various obstacles, one of the most significant being poor communication, which negatively impacts project performance and can even lead to project failure. The primary objective of this study is to identify and evaluate the causes and effects of poor communication in Jordan. A questionnaire containing 32 causes and 21 effects of poor communication was used to gather data. The top ten causes of poor communication are; possessing different levels of education among construction teams; a lack of communication plan; a lack of an appropriate communications medium; a lack of communication procedures and training; a slow flow of information between parties; diversity of culture among construction teams; construction teams possessing different skill levels; contractual barriers; the unavailability of information at the time of need, and a lack of understanding among parties. Poor communication is a prevalent issue in the Jordanian construction industry, Jordan's construction industry needs to improve its current communication state. Both contractors and consultants are affected by this issue and there is a high level of agreement between them on the causes and effects of poor communication.","PeriodicalId":42034,"journal":{"name":"Civil and Environmental Engineering","volume":"19 1","pages":"156 - 166"},"PeriodicalIF":1.2,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47609134","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

Seismic Risk Assessment of Simply Supported Girders Bridges 简支梁桥的地震危险性评估

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0003

Iralda Xhaferaj, Arian Lako, Neritan Shkodrani

{"title":"Seismic Risk Assessment of Simply Supported Girders Bridges","authors":"Iralda Xhaferaj, Arian Lako, Neritan Shkodrani","doi":"10.2478/cee-2023-0003","DOIUrl":"https://doi.org/10.2478/cee-2023-0003","url":null,"abstract":"Abstract Transport infrastructures, such as bridges, located in seismically active regions are potential exposure due to seismic hazards. A bridge collapse can have tremendous consequences because they provide vital links in a transportation system. Cross border region historically is very well known as territory characterized with high seismic risk. For that purpose, this study is related to the identification of seismic hazard cross-border harmonization vulnerability assessment of risk based on defined levels of seismic hazard and definition of reliable risk of simply supported girders bridge, which is main typology scheme. This study presents an analytical method to predict damage exceedance probabilities due to seismic events using the development of fragility curves. The proposed framework is demonstrated by performing case study highway bridges located in cross border Albanian region with Greece and North Macedonia. Bridge hazard identification is defined by established each damage state of probabilistic structural capacity. The damage probabilities of exceedance that structural demand exceeds capacity are analyzed, displaying results in the fragility curves of bridges.","PeriodicalId":42034,"journal":{"name":"Civil and Environmental Engineering","volume":"19 1","pages":"30 - 38"},"PeriodicalIF":1.2,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41337854","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

Testing the Properties of Cement and Gypsum Boards Reinforced with Nonwoven Fabrics Made of Waste and Recycled Fibres 废纤维和再生纤维非织造布增强水泥石膏板性能的试验研究

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0032

W. Brachaczek, Adam Chleboś

引用次数: 0

Reinforced Concrete Beams Without Shear Reinforcement Using Fiber Reinforced Concrete and Alkali-Activated Material 使用纤维混凝土和碱活性材料的无抗剪钢筋混凝土梁

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0031

Radoslav Gandel, J. Jerabek, Z. Marcalikova

引用次数: 1

Assessment of Slope Stability with the Assistance of Artificial Neural Network and Differential Evolution 基于人工神经网络和差分演化的边坡稳定性评价

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0026

V. T. Vu

引用次数: 0

Two-Lane Highway Capacity Estimation Based on Geometric Features 基于几何特征的双车道公路通行能力估计

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0017

B. Vijay, A. Al-Mansour, Kanghun Lee

{"title":"Two-Lane Highway Capacity Estimation Based on Geometric Features","authors":"B. Vijay, A. Al-Mansour, Kanghun Lee","doi":"10.2478/cee-2023-0017","DOIUrl":"https://doi.org/10.2478/cee-2023-0017","url":null,"abstract":"Abstract The majority of roads in most countries are two-lane highways. These lanes quickly reach their capacity and must be upgraded on a regular basis. To do so, we must first determine the capacity of the street. The primary objective of this study was to determine the effect of carriageway width, the radius of the horizontal curve, and gradients on Passenger Car Unit (PCU) values as well as on capacity of two-lane undivided Highways, and more importantly, to develop a multiple linear regression model to determine the capacity of the highway when all of these factors are present, which has not been previously reported. Green shield’s model was used to estimate the capacity of each element for all thirty-six sections using flow and speed data. Different models were built using regression analysis to estimate capacity independently, and the combined model was developed as a result. It has been noted that with proportionate increases in carriageway width and radius of the curve, there is an equivalent rise in PCU values and highway capacity, providing improved comfort and safety to road users. It was also discovered that when the value of the gradient increases cause increase in PCU values but the highway capacity decreases, thereby increasing the vehicle operating cost. Where all of these characteristics are present simultaneously in a section, the resulting multiple linear regression model was proven to be appropriate. It is believed to be valuable to practitioners as well as in the development or revision of Indian highway capacity manuals.","PeriodicalId":42034,"journal":{"name":"Civil and Environmental Engineering","volume":"19 1","pages":"190 - 205"},"PeriodicalIF":1.2,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42144923","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

Applicability of Induction Furnace Steel Slag in RC Columns Subjected to Axial and Uniaxial Loading 感应电炉钢渣在轴心和单轴荷载作用下钢筋混凝土柱中的适用性

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0010

Z. Ali, N. Khalid

引用次数: 1

Determination of Vibro - Compaction Parameters by Making a Test Board in a Port Site in Morocco 在摩洛哥港口场地制作振动压实试验板确定振动压实参数

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0029

Mohamed Bziaz, L. Bahi, L. Ouadif, A. Bahi, Abdehak Sabihi

{"title":"Determination of Vibro - Compaction Parameters by Making a Test Board in a Port Site in Morocco","authors":"Mohamed Bziaz, L. Bahi, L. Ouadif, A. Bahi, Abdehak Sabihi","doi":"10.2478/cee-2023-0029","DOIUrl":"https://doi.org/10.2478/cee-2023-0029","url":null,"abstract":"Abstract Vibro-compaction is a recent technique for treating soils in the mass, thus improving its mediocre geo mechanical properties. In addition, this treatment makes it possible to minimize the risk of liquefaction, it is closely linked to the grain size of the soil to be treated. The soil underlying the construction project of the port of Nador in Morocco requires treatment to improve its characteristics and in particular to minimize the risk of liquefaction, given that Morocco is in a collision zone, near the border between the two African-Eurasian plates that are seismically active (earthquake in the city of Al Hoceima in 2004 in Morocco). The purpose of this work is to test the different parameters of vibro-compaction (mesh, vibration frequency, height of passes, duration of compaction) necessary to obtain the objectives set for the work (relative density ≥ 77 %), through the carrying out of an embarkation test on the substitute sands of the main breakwater of this Port. The in situ control tests (CPT) of the main dam, which were carried out by the substitution sand, made it possible to confirm the results of the test bench. These results stipulate on the one hand that the vibro-compaction mesh of 4.00 m is the most optimal and on the other hand that the relative density is an important parameter of liquefaction control.","PeriodicalId":42034,"journal":{"name":"Civil and Environmental Engineering","volume":"19 1","pages":"328 - 338"},"PeriodicalIF":1.2,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48896261","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

Mechanical Properties of High Strength Self Compacting Concrete Based on Rheological Mix Proportioning 基于流变配合比的高强自密实混凝土力学性能研究

IF 1.2

Civil and Environmental Engineering Pub Date : 2023-05-12 DOI: 10.2478/cee-2023-0023

U. V. N. Rao, CH. Naga, Satish Kumar

引用次数: 0