Engineering Structures and Technologies最新文献_第7页

Investigation on the mechanical properties of rubberized steel fiber concrete 橡胶钢纤维混凝土力学性能的研究

Engineering Structures and Technologies Pub Date : 2017-06-14 DOI: 10.3846/2029882X.2017.1309301

A. Noaman, B. Bakar, H. Akil

引用次数: 24

Buckling and post-buckling of prestressed stainless steel stayed columns 预应力不锈钢斜拉柱的屈曲与后屈曲

Engineering Structures and Technologies Pub Date : 2017-06-14 DOI: 10.3846/2029882X.2016.1277169

R. Pichal, J. Machacek

引用次数: 14

A computer method for moment-curvature analysis of composite steel-concrete cross-sections of arbitrary shape 任意形状钢-混凝土组合截面弯矩-曲率分析的计算机方法

Engineering Structures and Technologies Pub Date : 2017-03-27 DOI: 10.3846/2029882X.2017.1299969

C. Chiorean

引用次数: 8

Sustainable utilization of discarded foundry sand and crushed brick masonry aggregate in the production of lightweight concrete 轻质混凝土生产中废弃铸造砂和碎砖骨料的可持续利用

Engineering Structures and Technologies Pub Date : 2017-03-27 DOI: 10.3846/2029882X.2017.1279987

Gireesh Mailar, Sujay Raghavendra Naganna, Parameshwar Hiremath, B. Sreedhara, D. Manu

{"title":"Sustainable utilization of discarded foundry sand and crushed brick masonry aggregate in the production of lightweight concrete","authors":"Gireesh Mailar, Sujay Raghavendra Naganna, Parameshwar Hiremath, B. Sreedhara, D. Manu","doi":"10.3846/2029882X.2017.1279987","DOIUrl":"https://doi.org/10.3846/2029882X.2017.1279987","url":null,"abstract":"Nowadays, there is a considerable shortage in the availability of river sand and natural stone aggregate for the construction activities all around the globe and the way out is being worked out by the use of discarded foundry sand and crushed brick masonry aggregate for construction purposes. In the present study, river sand was partly replaced by the discarded foundry sand procured from steel moulding industries and the crushed brick masonry aggregate was used as coarse aggregate for the production of lightweight concrete. The experimental program involved casting of six distinct mixes with 0%, 20%, 40%, 60%, 80% & 100% replacement of fine aggregate by discarded foundry sand. The mechanical and durability properties of the lightweight concrete were assessed for each of the six diverse blends. Even though the 80% and 100% replacement mixes were found to be less dense than the rest of the mix, the blend of 40% replacement acquired desirable mechanical and durability properties when compared to that of all other mixes. The optimum replacement level of the discarded foundry sand by mass to the river sand was 40%. The lightweight concrete produced by utilizing crushed brick masonry aggregate and discarded foundry sand (40% substitution level) can be employed in all major structural lightweight construction aspects and is ideally suited for sloped roof slabs and making architectural or decorative concrete blocks.","PeriodicalId":11839,"journal":{"name":"Engineering Structures and Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3846/2029882X.2017.1279987","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44103659","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: 10

Coupled thermal and mechanical analysis of composite cross sections using mathematical optimization strategies 基于数学优化策略的复合材料截面热力学耦合分析

Engineering Structures and Technologies Pub Date : 2017-03-27 DOI: 10.3846/2029882X.2017.1299965

C. Taube, Hans-Georg Timmler, M. Helmrich, G. Morgenthal

{"title":"Coupled thermal and mechanical analysis of composite cross sections using mathematical optimization strategies","authors":"C. Taube, Hans-Georg Timmler, M. Helmrich, G. Morgenthal","doi":"10.3846/2029882X.2017.1299965","DOIUrl":"https://doi.org/10.3846/2029882X.2017.1299965","url":null,"abstract":"In the present article an alternative approach for the coupled thermal and mechanical analysis of composite cross sections under temperature effects is introduced, which uses the mathematical optimization as a consistent methodical base. By applying the principle of the virtual source energy for the thermal and the principle of the minimum of the total potential energy for the mechanical analysis, an accurate determination of temperature fields as well as residual strain and stress distributions is possible. The coupling is enabled by the thermal strains, which are determined based on the temperature field and passed to the nonlinear mechanical analysis as tension free pre-strains. The energy functional of the heat conduction problem is derived and implemented. The resulting optimization task is strictly convex and represents an implicit formulation, which does not impose any stability criteria. The performance of the introduced method is demonstrated on a principle example and an outlook is given on possible further extensions and applications.","PeriodicalId":11839,"journal":{"name":"Engineering Structures and Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3846/2029882X.2017.1299965","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46859371","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

Numerical approach for bending stress ascertainment in beam theory considering effects of elastic shear lag 考虑弹性剪切滞后影响的梁理论中弯曲应力确定的数值方法

Engineering Structures and Technologies Pub Date : 2017-03-27 DOI: 10.3846/2029882X.2017.1299966

M. Kraus

引用次数: 2

Assessment of bed joints behavior of calcium silicate brick masonry during execution 硅酸钙砖砌筑施工过程中床缝行为的评价

Engineering Structures and Technologies Pub Date : 2016-12-16 DOI: 10.3846/2029882X.2016.1238784

T. Šlivinskas, Bronius Jonaitis, Ł. Drobiec

引用次数: 5

Big Data in civil engineering: a state-of-the-art survey 土木工程中的大数据:最先进的调查

Engineering Structures and Technologies Pub Date : 2016-12-16 DOI: 10.3846/2029882X.2016.1257373

O. Kapliński, Natalija Koseleva, Guoda Ropaitė

引用次数: 18

Multi-objective optimization of reinforced concrete frames using NSGA-II algorithm 基于NSGA-II算法的钢筋混凝土框架多目标优化

Engineering Structures and Technologies Pub Date : 2016-12-16 DOI: 10.3846/2029882X.2016.1250230

M. Babaei, Masoud Mollayi

引用次数: 15

Microwave radiation and its application on construction materials 微波辐射及其在建筑材料上的应用

Engineering Structures and Technologies Pub Date : 2016-10-01 DOI: 10.3846/2029882X.2016.1257372

M. Procházka, Jindřich Sobotka, K. Šuhajda, M. Novotný

引用次数: 5