bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise cienciométrica de artigos publicados na Scielo sobre o tema cronobiologia e depressão sazonal.
Authors: Oliveira Bianchi Larissa Renata
Published: November 2016

RESUMO:  Objetivou-se realizar uma análise cienciométrica dos artigos publicados na Scielo, para compreender como ocorre a interrelação entre a publicação de textos indexados pelos termos depressão sazonal e cronobiologia. Realizou-se uma busca sistematizada das informações na base de dados Scielo, usando os descritores ritmo biológico, biorritmo, periodicity, periodicidad, periodicidade, ritmicidade, bioperiodicidade, ciclicidade, chronobiology discipline, chronobiology, depressão sazonal, transtorno afetivo sazonal, seasonal affective disorden, fenômenos cronobiológicos e desordens cronobiologicas. Foram identificados 554 artigos, dos quais 32 eram abordavam o tema cronobiologia e/ou depressão sazonal. Destes 17 envolviam estudos com seres humanos, e dois são artigos originais. Na busca realizada, verificou-se que muitos dos vocábulos indicados pelo DECs são discrepantes da temática e que o número de publicações envolvendo o tema desta pesquisa e publicado na biblioteca virtual Scielo é reduzido, especialmente quando selecionados estudos originais que envolvam seres humanos.
Comportamento de colonização de drusas de Limnoperna fortunei (Dunker, 1857) sobre Corbicula fluminea (Müller, 1774) em seu inicio da invasão na planície de inundação do alto rio Paraná
Authors: Ragonha Flávio Henrique , Tramonte Rafael Prandini , Takeda Alice Michiyo
Published: November 2016

Neste trabalho foi registrado o comportamento de colonização da espécie invasora L. fortunei sobre e entre as valvas de outra espécie C. fluminea. Verificou que este comportamento inóspito foi evidenciado em várias coletas desde seu inicio de colonização. Este comportamento pode ser um dos principais fatores que está causando o declínio das populações de C. flumínea e outros bivalves.
Caracterização da vegetação arbórea de uma área verde urbana como recurso de apoio e incentivo ao desenvolvimento de atividades didáticas extraclasse
Authors: Reis Jacqueline Graff
Published: November 2016

Os parques urbanos e “áreas verdes” podem ser considerados fontes de conservação da biodiversidade local e regional, além de oportunizarem lazer e conhecimentos extraclasse para a rede de educação básica. Este trabalho é resultado de um projeto de pesquisa, cujo objetivo foi realizar o levantamento das árvores presentes no Parque Ecológico Lívio Donatti em Realeza/PR com o intuito de fundamentar o desenvolvimento de posteriores atividades didáticas de Ciências, Biologia e Educação Ambiental neste local. A herborização do material botânico foi realizado no laboratório da UFFS Realeza/PR com auxílio de lupa e bibliografia especializada. Dentre os indivíduos amostrados houve predominância de árvores exóticas. Sugere-se o plantio de árvores nativas para enriquecer a biodiversidade do Parque e espera-se facilitar desenvolvimento de atividades didáticas pelos professores da região.
ALGUMAS REFLEXÕES SOBRE O PAPEL DA PARTICIPAÇÃO EM GRUPOS DE PESQUISA PARA A FORMAÇÃO DE LICENCIANDOS EM FÍSICA
Authors: Dias Néryla Vayne Alves , Cardoso Valdinei Cézar , Debastiani Neto João
Published: November 2016

O presente trabalho apresenta uma pesquisa sobre a participação em projetos de pesquisa e a formação inicial de professores de física. Tivemos como principal objetivo compreender de que forma a participação em um projeto envolvendo o uso de tecnologias na preparação de aulas de Física contribui para a construção da identidade docente de licenciandos em física, bem como verificar se o envolvimento nessas atividades pôde proporcionar uma formação complementar em Física e a reflexão sobre a própria prática docente. A pesquisa é de abordagem qualitativa, e o instrumento de coleta de dados foi uma entrevista semiestruturada realizada com alunos do segundo ano do curso de Licenciatura em Física de uma universidade pública estadual do Noroeste do Estado do Paraná, que participam concomitantemente de Projetos de Iniciação Científica na área de ensino de Física com o uso de tecnologias. Nossas análises evidenciam que a participação em projetos de pesquisa na área de formação de professores contribui para o início da construção da carreira docente, considerando que, nesses projetos, eles vivenciam a docência durante a graduação. O amadurecimento e a aprendizagem dos conceitos (matemáticos, físicos e tecnológicos) também são vistos pelos participantes da pesquisa como algo positivo e propiciado por tais ações. Os resultados apontam que a vivência realizada durante o Projeto de Iniciação Científica (PIC) possibilitou uma formação complementar que amplia o seu aprendizado diante das situações que permeiam a atuação docente, que os alunos não teriam apenas com o curso de formação inicial.
ELABORAÇÃO DE JOGOS EDUCATIVOS PARA O ENSINO DE CÉLULA EUCARIONTE
Authors: Carneiro Caroline Carlos Melo , Côrtes Bárbara Mendes , Borges Paulo Victor , Campos Maria Rita de Cassia
Published: November 2016

O processo de aprendizagem relacionado à temática celular exige o uso de  linguagem apropriada com analogias que favoreçam o entendimento pelo aluno.O presente trabalho teve como objetivo elaborar jogos educativos para abordagem célula eucarionte animal. A metodologia utilizada baseou-se numa aula teórica abordando células, com ênfase em célula eucariótica. Foi apresentada uma situação-problema e a turma dividida em grupos de dois ou três alunos. Para a elaboração dos jogos os estudantes pesquisaram e estudaram o conteúdo. As atividades foram desenvolvidas durante um trimestre sob orientação de monitores e da professora regente. No primeiro mês, foi elaborada a metodologia e os referenciais que fundamentariam (conceitualmente e pedagogicamente) a estratégia a ser produzida. O segundo mês foi o período da confecção dos materiais. O terceiro mês se constituiu da apresentação e aplicação dos jogos para a turma. Foram feitas avaliações preliminares no ano da confecção e no ano seguinte. Foram produzidos 7 jogos educativos com uma maneira particular de avaliar os competidores. Inicialmente, os alunos desacreditaram da atividade como instrumento de aprendizagem, depois se sentiram estimulados. Observou-se que nos anos de avaliação, no ano de confecção do material (2013) e no ano seguinte (2014) houve aumento significativo na média de notas do conteúdo de célula eucarionte quando comparados ao ano de 2012. A maioria dos alunos considerou que este é um recurso que pode ser usado como ferramenta complementar à aula expositiva. Este trabalho mostrou que os jogos elaborados podem trazer benefícios qualitativos e quantitativos ao ensino de biologia celular.
EPISIOTOMIA E SUAS IMPLICAÇÕES
Authors: Peña Solange Ribeiro , De Godoy Gomes Célia Regina
Published: November 2016

Episiotomia é um procedimento realizado em mulheres no período expulsivo do trabalho de parto. Trata-se de uma incisão na parede ínfero-posterior da vagina podendo ser mediana ou médio-lateral. Atualmente há diversos trabalhos sendo publicados sobre a questão de essa prática ser útil ou desnecessária e até que ponto ela pode contribuir ou não com a passagem do feto pela vagina para diminuir riscos para o mesmo ou para a mãe. O principal o objetivo deste estudo é esclarecer sobre as indicações da episiotomia, sua eficácia e repercussões para a vida da mulher. Trata-se de uma pesquisa básica, descritiva, de levantamento bibliográfico simples a partir de publicações científicas, livros, dissertações, teses e outras documentações eletrônicas vinculadas as bases de dados como SCIELO (ScientificEletronicLibraryOnline), BIREME (Bibliotecavirtualemsaúde) e PUBMED (National Center BiotechnologyInformation). Conclui-se que a episiotomia não deve ser uma prática rotineira, devido às suas implicações na saúde, sexualidade, autoestima da mulher. Entende-se que este trabalho traz uma contribuição importante para que sejam adotadas práticas alternativas para a preservação do períneo feminino no trabalho de parto.
AVALIAÇÃO DE HIGIENE BUCAL DE CRIANÇAS ATENDIDAS NA CLÍNICA ODONTOLÓGICA DA UNIVERSIDADE PARANAENSE – CAMPUS CASCAVEL - PR, BRASIL.
Authors: Souza Juliana Garcia
Published: November 2016

A Odontologia visa atualmente à promoção de saúde, onde está intimamente relacionada com qualidade de vida, atuando na prevenção precoce de doenças bucais e incentivando o autocuidado do indivíduo. O presente estudo teve como objetivo avaliar a higiene bucal de pacientes que frequentam a Clínica Odontológica da UNIPAR – Campus Cascavel, PR. Este estudo foi baseado em dados secundários a partir de fichas clínicas de pacientes de 4 a 11 anos atendidos na disciplina de Estágio Supervisionado em Clínica Multidisciplinar Infantil da UNIPAR - Campus Cascavel - PR, nos anos de 2007 a 2013. O índice IHOS (índice de higiene oral simplificado) foi verificado em dois momentos, inicial e final, nas formas qualitativa e quantitativa. Foram avaliados 300 prontuários, sendo 114 femininos e 186 masculinos. A média do IHOS inicial feminino foi de 1,33 e o final foi de 1,16, já a média do IHOS inicial masculino foi de 1,3 e o final foi de 1,22. Em relação aos tratamentos odontológicos 135 pacientes concluíram e 165 ainda estão em andamento. Já na classificação qualitativa, observou-se que houve uma melhora no percentual de crianças com valores classificados como “Bom” de 18,6% para 25,1%, “Regular” de 61,3% para 59% e “Fraco” de 19,5% para 15,3%. Conclui-se que a orientação de higiene bucal aos pacientes atendidos na disciplina está sendo eficaz para o controle de placa, pois houve uma redução do índice de placa em praticamente em todas as faixas etárias.
IV Simpósio de Ecologia e Conservação de Mamíferos Silvestres 06 a 08 de julho de 2016 – Universidade Estadual de Maringá/PR
Authors: Vidotti Ana Paula
Published: November 2016

IV SIMPÓSIO DE ECOLOGIA E CONSERVAÇÃO DE MAMFÍFEROS SILVESTRES
Analysis and Design of Blast Resistant Structure
Authors: Geethu Elsa Thomas , Rai Kulbhushan , Sithara S.
Published: November 2016

In the past few years, the increase in the number of terrorist attacks has shown that the effect of blast loads on buildings is a serious matter that should be taken into design consideration. These man-made disasters have created a challenge to structural engineers world over about the deficiency in the design process. Blast loads are extreme, instaneous, unpredictive impulses acting over milliseconds. Due to this nature of blast loads, it is complicated to analyse the dynamic responses of the structures. Usage of advanced engineering materials for construction can solve these structural problems to an extent. This paper presents the analysis and design of an underground blast resistant shelter made up of high performance fiber reinforced cementitious composites (HPFRCC). This research focuses on an alternative section of cylindrical module of the shelter. The dynamic behavior of module under blast load is studied in finite element software Abaqus CAE 6.12. It is observed that the material stress-strain behavior is greatly influenced by strain rates of loadings. Shelter manually designed using codes in working stress method is verified with the analytical analysis
Flexural Performance of SCS Sandwich Beam with Foamed Concrete
Authors: Sivachidambaram M. , Revathy J.
Published: November 2016

This paper presents the investigation on the flexural performance of steel concrete steel (SCS) sandwich beam comprising of fibre reinforced foamed concrete (FRFC) as a core concrete, sandwiched between the two steel plates. The steel plates were connected by a J-hook shear connector in order to develop a composite action between the plates and core concrete. The light weight foamed concrete having a density ranged from 1400 to 1450 kg/m3. The SCS sandwich beams were tested under a static gradual loading up to failure to examine its flexural behaviour. The test results revealed that the proposed SCS sandwich beam with FRFC increased the load carrying capacity and ductility performance. The finite element based modelling has also been conducted for the corroboration of test results. A reasonably close agreement has been obtained between the experimental results and predicted values.
Investigation on the Behaviour of Fibre Reinforced Polymer Wrapped Concrete In-Filled Steel Tube Columns
Authors: Gajalakshmi P. , Aravind S. , Soundarapandian P.
Published: November 2016

Concrete in-filled steel tube (CIFST) columns are mainly used as structural members in buildings located in seismic zones. CIFST columns prone to buckling and technique is required to control the buckling of concrete filled steel tubes when they are subjected to cycles of loading. In this work, CIFST columns wrapped with fibre reinforced polymer laminates (FRPL) to prevent the local buckling. Experimental and analytical study of CIFST columns externally wrapped with FRPL have been conducted. Theoretical study is also conducted to find the ultimate load carrying capacity of CIFST columns. The parameters involved in this investigation are type of fibre and shape of the steel tube. The CIFST columns are tested under lateral loading to determine the number of cycles to failure and energy absorption capacity and to observe the hysteresis behaviour. The analytical study comprises of finite element modeling of CIFST columns wrapped with FRPL. The results obtained from the experimental investigation and finite element model are compared. The results revealed that FRPL wrapped circular CIFST columns have higher load carrying capacity and energy absorption capacity and exhibit ductile behavior when compared to CIFST columns.
Nonlinear Finite Element Analysis of Unreinforced Masonry Walls
Authors: Feba S. Thomas , Kuriakose Bennet
Published: November 2016

Most of the monumental structures worldwide and residential structures in developing countries are built in masonry. The studies performed by various researchers prove the vulnerability of masonry structures under various circumstances, especially under earthquakes, so as to necessitate detailed contemplation. In this paper, a numerical model for nonlinear static analysis of unreinforced masonry walls is developed based on a macro-modelling approach. A detailed parametric study is also performed to analyse the effect of wall thickness as well as length on the behaviour of the masonry wall. The present numerical model can be utilized for risk assessment and seismic retrofitting of historical masonry structures.
Parametric Study of Single Cell Box Girder Bridge under Different Radii of Curvature
Authors: Sali Jefeena , Mohan Regi P.
Published: November 2016

Box girders are now prominently used in freeway and bridge systems because of its structural efficiency, better stability, serviceability, economy of construction and pleasing aesthetics. Due to its high torsional rigidity box girders are most suited for curved bridges. In the present investigation, a comparative study of straight and curved box girder bridges with trapezoidal cross section has been carried out. The analysis is carried under the dead load, super imposed dead load, live load of IRC Class A tracked vehicle and prestressed load .This paper focus on the parametric study of box girders with different radius of curvature by keeping the span, cross sectional shape and material properties constant. The parametric investigations performed on curved box girders helps to evaluate the effects of change in radius of curvature on the behaviour of the box girders. This study would help the bridge engineers to better understand the behaviour of straight and curved box girder bridges. The results obtained from this study will be a valuable guidance to the bridge designers.
Performance of Lean Duplex Stainless Steel Stub Columns with Stiffener
Authors: Vidya K.C. , Varghese George M.
Published: November 2016

The stainless steel are employed in a wide range of structural application such as in bridges, storage tanks, reinforcing bars for concrete structure, etc. Among the various grade of stainless steel, austenitic grades are generally popular in construction industry which has nickel content 8-11%. The demand for a new form of a duplex stainless steel leads to the development of Lean Duplex Stainless Steel (LDSS), which has a low nickel content of about 1.5%. The paper is investigates the buckling performance of different shaped lean duplex stainless steel hollow stub column with stiffener. Also performance of LDSS stub column compared with concrete stub column. A non-linear static analysis of LDSS stub column was studied using ANSYS workbench.
Seismic Analysis of Confined Masonry Shear Walls Using the Wide Column Model
Authors: Rangwani Kiran , Brzev Svetlana
Published: November 2016

Confined Masonry (CM) structural system consists of masonry walls enclosed by reinforced concrete (RC) confining elements (tie-columns and tie-beams) and is usually supported by reinforced concrete floors and roof. This technology has been widely used for construction of low-and medium-rise buildings in Latin America, Europe, South Asia, and Middle East, and it has a proven record of good performance in damaging earthquakes. CM construction is not currently practiced in India and is not addressed by Indian design codes. Seismic analysis of CM wall panels can be performed using Wide Column Model (WCM), also known as Equivalent Frame Model. WCM is a macro model where a wall structure and the supporting floors and roof are idealized as a bare frame. CM walls can be modelled as wide columns with transformed section properties accounting for composite action of masonry and RC tie-columns. Beams in these bare frames have rigid segments simulating the effect of wall stiffness, and flexible segments that simulate the effect of floor and roof slabs. WCM has been recognized as a viable model for seismic analysis of CM buildings in Latin American countries, however this model is not well known in India. The results presented in this paper are based on linear elastic analyses of typical multi-storey CM solid walls and walls with openings. The output parameters include shear forces, bending moments, stiffness, and lateral displacements. A comparison of the results obtained using the WCM and the Finite Element Method (FEM) has been presented. WCM can be useful for seismic analysis of CM buildings since it does not require significant computational effort and can be applied using a variety of software packages.
Comparative Study on Structural Performance of Different Laminated Glass Composites and Brick Wall
Authors: Varghese Vipitha , Poulose Dony , Issac Binu M.
Published: November 2016

Laminated glass composites are structural glass members made by assembling thin laminated panels which are connected by structural adhesives called interlayer. Laminated glass composite is a safety and security glass which enables significant improvement in the post-breakage behaviour. The interlayer of laminated glass composites ensures the integrity of the glass by holding it together. In the field of modern and innovative architectural engineering, the applications of laminated glass composites are increasing due to its lighting, aesthetics and architectural advantages. This paper introduces the buckling and vibration characteristics of different laminated glass elements using ANSYS 16.2.
A Study on Delays in Construction Projects
Authors: Manzur Ansal , Ganesan N. , Vinay Mathews
Published: November 2016

Late completion of construction project compared to planned schedule is common in construction projects. Delays can create cost and time over run and disputes between client and contractor executing construction work. First part of the study focusses on determining reasons which contribute to delay in construction work. This paper doesn’t attempt to propose methods to avoid delays. The possibility of using extant time and cost forecasting methods to help project managers anticipate delays has been evaluated in second part of the study.
Structural Health Monitoring Using Piezoelectric Sensors and Actuators
Authors: Thomas Ann Maria , Pradeep Koovaparambil Ramunny , Mathew Praveen
Published: November 2016

Structural health monitoring (SHM) is an inevitable component of modern civil and aerospace structures. It essentially detects the damages in the system by evaluating the performance parameters by the integration of sensing and possibly also actuation devices into the structure. In this paper damage detection process in an aluminium cantilever plate using piezoelectric sensors and actuators is simulated. Possible root damage such as transverse crack and longitudinal crack are studied. The results are compared with undamaged case. The plate is actuated using PZT actuators and performance is evaluated using PVDF sensors. Modelling for PZT/PVDF and structural parts are carried out using coupled field finite element PLANE223 ofAnsys(TM) finite element package. Strain response at the root of the cantilever plate is captured as the voltage output of the PVDF sensor. Strain response is directly related to the voltage generated in the PVDF sensor. The percentage variation of the fundamental frequency is found to be less than 3% in the present study and hence it is not taken as an index of damage. The transient voltage response captured with the transient coupled field analysis shows variation up to 24% as a signature between damaged and undamaged systems. Therefore, the present study suggests transient response evaluation using PVDF sensor is a suitable evaluation technique for the cases under consideration.
Study of Concrete Filled Steel Tubular Arch Bridge: A Review
Authors: Rajeev Shilpa , John Peter Deepak , Varkey M.V.
Published: November 2016

In many developed countries, concrete filled steel tubular arch bridges are being constructed for roads and railway lines. The CFST arch bridges use steel tubular arches with self consolidating concrete pumped inside and the steel tube provides confinement to the concrete infill. Also, these concrete filled steel tubes have enhanced ductility, better seismic performance, aesthetic quality, lesser consumption of materials and self weight, speedy construction and small vibrations according to studies conducted earlier. Due to the presence of steel tube, local buckling of arch is delayed and reduces the ingress of moisture when exposed to harsh environmental conditions. This paper aims to find the seismic performance of CFST arch bridges in terms of seismic output and deformation when compared to conventional bridges being currently constructed.
A Study on the Seismic Performance of Hexagrid System with Different Patterns
Authors: Ria Mathews Mobi , George Jerin M. , Issac Binu M. , Davis Deepa
Published: November 2016

Multi‐storied building construction is increasing rapidly throughout the world. Tall buildings more effectively utilize land compared to low rise building. As the height of building increases the importance of lateral load resisting system becomes more relevant than gravity load resisting structural system. Many structural systems are recently introduced to improve the structural performance of tall buildings. Hexagrid system is one among them. Hexagrid system consists of multiple hexagonal grids at the exterior perimeter of the building. It resists both lateral loads and gravity loads by axial stress of their members. The members simply act in tension or compression and show no bending which reduces the need of steel. The paper presents the comparison of different patterns of hexagrid system.
An Experimental Study on the Compressive Strength of Alccofine with Silica Fume Based Concrete
Authors: Rajesh Kumar S. , Samanta Amiya K. , Singha Roy Dilip K.
Published: November 2016

This investigation is focused on the physical and mechanical properties of Alccofine (AF) incorporating silica fume (SF) on M20 grade concrete. Normally, these industrial wastes (SF) are disposed off in landfill. The use of these industrial waste in concrete could reduce waste in the environment as well helps the environment against pollution as it is known that one ton of cement manufacture released one ton of carbon dioxide to the environment .Alccofine is a new replacement material on which very limited research has been done, its effect with flyash has been studied. The current study is a new experimental research undertaken to study the effect of alccofine on SF based concrete. Alccofine was varied in percentages of 0, 5, 10 and 15%, Silica fume was varied in percentages of 0, 5, 10, 15 % The aim of the investigation was to see the effect of alccofine on compressive strength of concrete and do a comparison on 7, and 28 days strength.The results showed that the cement replacement by 10% of alccofine gives higher values when compared with all other mix. The cement replacement by 10% alccofine gave a good improvement in compressive strength. Alccofine has the better performance when compare to the other slag material. It is helpful to make concrete workable
Analytical Study on Effect of Geometry of Tall Buildings on Diagrid Structural Systems Subjected to Lateral Loads
Authors: Anjana Elsa Alexander , Renjith R. , Issac Binu M.
Published: November 2016

Structural design of high rise buildings is governed by lateral loads due to wind or earthquake. As the height of building increases, the lateral load resisting system becomes more important than the structural system that resists the gravitational loads. Recently, diagrid structural system are widely used for tall buildings due to its structural efficiency and flexibility in architectural planning. Diagrid structural system is made around the perimeter of building in the form of a triangulated truss system by intersecting the diagonal and horizontal members. Diagonal members in diagrid structural systems can carry gravity loads as well as lateral loads. Lateral loads are resisted by axial action of the diagonals compared to bending of vertical columns in framed tube structure. The structural efficiency of diagrid system also helps in avoiding interior and corner columns, thereby allowing significant flexibility with the floor plan. In this paper, effect of lateral loads on steel diagrid buildings are studied. Square and rectangular buildings of same plan area with diagrid structural system is considered for the study. Diagrid modules extending upto 2,4,6,8 and 12 storeys are evaluated. Static analysis for the gravity loads, wind and earthquake and response spectrum analysis are carried out for these different combinations of plan shape and diagrid modules and performance of all these diagrid models i.e., storey displacement, storey drift and modal time period are evaluated and compared in this study.
Effect of Fibres on Beam Column Joint Failure
Authors: James Jerison Scariah , James Margrette Mary
Published: November 2016

Concrete is one of the most resourceful and environmental friendly building materials. It can be cast to fit any structural shape from a cylindrical water storage tank to a rectangular beam, slabs and column in a high-rise building. In RC buildings, portions of columns that are common to beams at their intersections are called beam column joints. Beam-column joints have a crucial role in the structural integrity of the buildings. Review of literature indicates that numerous studies were conducted in the past to study the behaviour of beam-column joints with normal concrete. However, those recommendations are not intended for the fibre reinforced concrete. Some indicates that this material is an alternative to the confining reinforcement in the joint region. So the comparative study of the performance of different fibres in beam column joint has a greater importance and relevance in the field of RCC framed structures. This thesis aims to study the behaviour of beam column joint by evaluating the performance of fibre reinforced concrete. The incorporation of fibres in beam column joint is analysed in this study. The use of different types of fibres such as steel and polypropylene are evaluated.
Numerical Analysis of Shear Buckling of Steel Plate with Cut Outs
Authors: Shaji Swethamol , Varghese Deepa
Published: November 2016

For more than three decades, global attention and interest have grown in the application of steel plate walls for building lateral load resisting system. Some apparent advantages of using steel plate walls in a building include adequate energy dissipation, stable hysteretic characteristics and enhanced stiffness, strength and ductile behaviour. One of the simplest and cost effective solutions is to cut openings in steel plate in order to achieve high ductility which inturn results in an intense variation in stress distribution. In this paper, the shear buckling behaviour of a steel plate having cut outs is assessed numerically using ANSYS finite element program. The developed methodology is validated with results available in the literature. A parametric study is also carried out to study the buckling behaviour of steel plate with different shape and size of the cut outs. The study can be further modified to develop detailed methodology to perform buckling analysis of diagonally stiffened steel plate shear wall with cut outs.
Efficacy of Importance Factor in Seismic Design of Indian Buildings
Authors: Sukumar V. , Arunachalam J. , Haran Pragalath D.C.
Published: November 2016

At present, seismic load evaluation for design of Indian buildings are carried out using Indian seismic code. In which, building Time period, Response Reduction factor and Importance factor alters design base shear majorly. Currently IS code defines Importance factor differently as “1” for general buildings and “1.5” for public buildings. This factor makes public buildings as heavier sections as it increases design base shear. However there are no evidence that, how this importance factor affects/alters/improves the seismic behavior of buildings. In this present study, four storey RC frames are designed with different importance factors. Pushover analyses are carried out to find its effects on over strength factor and response reduction factor.
Evaluation of Stress Block Parameters for Steel Fibre Reinforced SCC with Recycled Concrete Aggregate
Authors: Neethu Elizabeth John , Akhil Raj S.R.
Published: November 2016

Stress block parameters are predominantly used in the design of concrete structural members and offer a convenient method to arrive at the flexural capacity. The objective is to find the equivalent stress block parameters namely, the effective average concrete ratio and the stress block depth factor for Self Compacting Concrete with recycled aggregate (RSCC) and SCC with recycled aggregate incorporating steel fibres (SFRSCC) . SCC is defined as a highly workable concrete which flows by its own weight. Sustainability of SCC can be improved by replacing mineral aggregates by industrial waste like rubber, recycled aggregate, granite powder etc. An experimental investigation was carried out on the stress strain characteristics of SCC by partially replacing 25, 50, 75 and 100 % of coarse aggregate by recycled aggregate (RSCC) for varying design strength 30, 40, 50 MPa under monotonically increasing axial loading. The behavior of SCC with 100 % recycled aggregate incorporating steel fibres with different volumetric ratios is also explored. A total of 72 cylinders were prepared to develop a stress strain model for RSCC and SFRSCC. The results were compared with the existing models used for SCC and recycled aggregate and it indicates that Saenz model was found applicable for finding the stress block parameters. The proposed parameters were found to be lesser than the values for normal concrete specified by IS 456 and that these parameters could be used to determine the flexural strength of members made using the above composites.
Experimental Study on Crack Width Evaluation of R.C Beams and Comparison with Various Codes
Authors: Lekshmi U. , Sherin Joseph Margrete , Krishna Kumar S.
Published: November 2016

Development of cracks is the most common cause of premature deterioration in structures. For the design of reinforced concrete structures, crack width is one of the most important factors to be considered. It also affects the serviceability of reinforced concrete members. This paper presents the experimental study on crack width evaluation of R.C beams and comparison with various international codes. Following international codes: Eurocode2 1992-1 (2009), Egyptian Code ECP203-2007, ACI Code 318-95, 318-05, BS 8110-1997/IS: 456-2000 was used to calculate the crack width for comparison purpose.
Construction Technology Research on Revolving Conical Pullout Anchor
Authors: Ma Jun Chao , Yang Cheng Bin , Yu Hong Ming
Published: November 2016

To solve the anti-float problems of underground buildings (structures) more economically, environmentally and effectively. The paper putted forward a construction technology of revolving conical pullout anchors based on researching and improving to the traditional pullout measures. That was a method that the conical anchor head was installed on the drilling pipe and screwed into the stable soil under the influence of drilling pipe. When pulling the drilling pipe, the fine aggregate concrete were poured into the edge. Furthermore, prestressed anchor cable should be strained which connected with the anchor head to keep a good connect with the beam so that it could improve pullout capacity. The conundrums of long construction period and high cost had effectively solved. This technique also had provided great reference values for the congener construction.
Research on the Simulation of Hygrothermal Distribution of Stone Wool ETICS
Authors: Sun Li Xin , Yan Zeng Feng , Zhou Hui
Published: November 2016

Stone wool external thermal insulation composite system is used more and more in China now. Former studies in China simply consider that water vapour permeability of render coating should be equal to the water vapour permeability of stone wool. Neither is there any necessary indicator for the liquid water (wind-driven rain) for the system. Therefore, an important issue to be solved currently is how to propose reasonable indicators for water vapour and liquid water transfer performance in stone wool system for different climate zones in China. This research studied on the simulation of hygrothermal distribution of stone wool system. Simulations of stone wool systems were done under different outdoor temperature, humidity, wind driving rain and other conditions to analyze the moisture content in each layer of the system. Meanwhile, simulations of different render coating performances were also done to analyze the moisture content in each layer. Based on these, indicators for water vapour and liquid water were proposed, which provides a foundation for the stone wool external thermal insulation composite system standards in China.
Influence of the Step Elevation on Blasting Seismic Wave
Authors: Wu Xu , Zhang Yun Peng , Guo Qi Feng
Published: November 2016

Elevation effect is an important content of the research on propagation law of blasting seismic wave. Based on the numerical simulation and theoretical analysis, the inducement and characteristics of elevation effect are revealed. The results indicate that vibration amplification effect is induced in a certain elevation. The amplification factor doesn’t increase monotonously. Amplification and attenuation effects on blasting vibration velocity exist simultaneously. According to the data analysis and theoretical analysis, a prediction model of vibration velocity on step topography is put forward.
Elastic-Plastic Time History Analysis of MR Damping Structure Based on LQG Algorithm
Authors: Zhao Yu Liang , Xu Zhao Dong
Published: November 2016

This paper discussed an elastic-plastic time-history analysis on a structure with MR dampers based on member model, in which the elastoplastic member of the structure is assumed to be single component model and simulated by threefold line stiffness retrograde model. In order to obtain better control effect, Linear Quadratic Gaussian (LQG) control algorithm is used to calculate the optimal control force, and Hrovat boundary optimal control strategy is used to describe the adjustable damping force range of MR damper. The effectiveness of the MR damper based on LQG algorithm to control the response of the structure was investigated. The results from numerical simulations demonstrate that LQG algorithm can effectively improve the response of the structure against seismic excitations only with acceleration feedback.
Conflict Fusion Analysis on Earthquake-Damaged Risk Evidences for Underground Structure
Authors: Wang Feng Shan , Rong Quan Bing , Zhang Hong Jun
Published: November 2016

To account for the conflict sensitivity, one model is presented to fuse the high conflict risk evidences about earthquake-damaged underground structure. Following the nature ideology and model rule of Evidence Theory, the earthquake-damaged origin risk evidence is revised with Similarity Coefficients, and the identical intensity and conflict intensity is calculated for each risk evidence; the difference and conflict character is comparatively analyzed about the fusion rules respectively on Similarity Coefficient and Conflict Intensity; Under Standard DS Fusion Mode and Conflict Intensity Fusion Method, the four combination fusion model is presented as Model-AO, Model-RO, Model-AC and Model-RC, and the improved risk fusion operator is given for such earthquake-damaged underground structure evidences. Finally, case demonstrates the validity of the integrated model, which could overcome the high conflict lack in the risk fusion standard DS model.
Experimental Research on Mechanicals Performance of Carbon Nanotubes Reinforced Concrete
Authors: Shang Su Su , Song Xiao Bin
Published: November 2016

Carbon nanotubes are a promising candidate for the next generation high performance structural and multi-functional composite material due to extremely high aspect ratios and ultra-high strength. It is evident from contemporary researches that utilization of carbon nanotubes in reinforcing cement-based composite materials has a great potential. Industrial carbon nanotubes paste was used for pro-dispersion by ultrasonic and dispersant (PVP) in this study. The mechanical properties of concrete reinforced by carbon nanotubes with different weight percent (0, 0.05, 0.1, 0.15, 0.2, and 0.25 wt. %) were studied in this paper. Test results indicated that the optimal dosage of carbon nanotubes was about 0.22wt. %. Cubic compressive strength and splitting tensile strength were found to be increased by 30.8% and 46.0% in comparison with normal concrete, respectively, while the change of elastic modulus was immaterial. For further analysis, the scanning electron microscope was employed to observe the dispersion of carbon nanotubes in concrete.
Research on Compression Mechanical Properties of Metal-Net Rubber
Authors: Su Yi Ming , Hou Ying , Zou Guang Ping
Published: November 2016

For the study of the metal-rubber which is a new material used as damper component. The compression mechanical properties of metal-net rubber were studied. Through the static compression test of metal-net rubber, the influence of some factors such as: compression amount, relative density, wire diameter and bearing area. The method is variable-controlling. Experimental results show that along with the increase of the amount of compression, the nonlinear mechanical properties of metal-net rubber boosts; with the increase of relative density, the compressive capacity of metal-net rubber improves. The wire diameter influences the nonlinear mechanical properties of metal-net rubber, the larger the wire diameter, the compressive capacity is higher; the bearing area is greater, the compressive capacity and energy dissipation performance are better.
Influence of Pro-Coating Coarse Aggregate on Engineering Properties of Recycled Concrete
Authors: Fang Yi Han , Chu Ching Hao , Lin Wei Ting , Cheng An , Liu Wei Dong
Published: November 2016

This study is aimed to investigate the effects of four kinds of pro-coating coarse aggregate included air-dried condition, 50 degrees Celsius curing for 24 hours, saturated lime water curing for 28 days and original recycled aggregate for a comparison group. Performance testing included slump, compressive strength, ultrasonic velocity, absorption and resistivity tests and were evaluated the fresh, mechanical and durability properties. Test results indicated that the specimens containing four kinds of recycled aggregates performed batter workability due to the smooth surface pro-coated with slag. The specimens containing pro-coating aggregate with 50 degrees Celsius curing had lower absorption, higher compressive strength, ultrasound velocity and resistivity than others due to the better denseness and compactness. At the age of 28 days, the recycled aggregates specimens with 50 degrees curing had 22 % higher compressive strength and 40 % lower absorption than the original recycled aggregate specimens. For engineering requirements, pro-coating technology should be applied to improve the engineered properties of concrete and promote the natural resources recycling technology.
A Feasibility Study of Engineered Cementitious Composites with Local Ingredients
Authors: Li Zhi Hua , Chen Wei Kang , Zhou Xu , Chen Feng Quan
Published: November 2016

Polyvinyl alcohol (PVA) fiber reinforced cementitious material (called PVA-ECC) has been intensively studied as a promising alternative to ordinary cement materials. While PVA-ECC has high stain capacity and ductility, its extreme high cost mainly caused by the high unit cost of used Japanese fiber has hindered its application in China. In order to reduce the cost of PVA-ECC, one type of inexpensive PVA fiber produced in China was used to develop a ductile ECC with deflection hardening and multiple cracking behaviors in this research. Compressive strength test, four-point bending test and uniaxial tension test were conducted to investigate the mechanical properties of the newly developed composites. The results show that ECC made with domestic ingredients exhibits large deformation and multiple cracking, revealing that it is feasible to produce low cost ECC material employing local PVA fibers.
Research on Climate-Adaptable Passive Design Strategies of Rural Buildings in South of the Yangtze River Region of China
Authors: Xu Bin , Ding Yu , Yang Wei Ju
Published: November 2016

This paper studies the energy saving on the rural housing of the Jiangnan Region in China, by introducing the coupling analysis of climate response design method and orthogonal test method into the passive optimal design. Six design factors influencing energy consumption of rural buildings in this region are screened, combining with the energy consumption simulation and analysis software. Meanwhile, the analysis on climate-adaptable strategies, influence trend and importance on cooling & heating load of rural buildings imposed by various design factors, as well as the combination mode of design factors achieving the optimal cooling & heating load are obtained in order to play a certain guiding role in construction of rural buildings in this region.
Design of Guidance Information for Arriving Passengers in Urban Rail Transit Carriage
Authors: Huang Ke Xin , Yan Hao Nan , Gong Yan Tao , Wang Bo Bin , Shao Chun Fu
Published: November 2016

With the improvement of Beijing urban rail transit network, an increasing number of transfer stations come into being. The scale of the urban rail transit station becomes larger and the passenger flow volume increases dramatically which makes urban rail transit guidance information much more important. However, since the construction of urban rail transit system in China started relatively late, guiding sign system lacks of uniform standard and guidance information settings have many drawbacks so that it can hardly meet the demand of passengers. This paper, taking television as a carrier. And it gives the thought of removing guidance information to the carriage to serve arriving passengers in advance for best guiding effect. First, design a questionnaire and then issue questionnaires. Second, analyze the survey data and find out passengers’ demand for guidance information. Third, design a scheme on guidance information based on passengers’ demand. At last, use AnyLogic simulation software and select line 2 platform of Xizhimen station as a simulation environment to evaluate the effect of the scheme.
Study on Subjective Evaluation of Comfort of Lighting Environment in Nursing Institutions
Authors: Zhou Yuan Yuan , Zhu Wang Da
Published: November 2016

This paper investigated and determined the subjective evaluation indicators of comfort in lighting environment for elderly in nursing institutions. Factor analysis method was utilized and the result showed that the recognition of space and figures, sense of security from even illumination, convenience of switch control and no glare were the main factors. The conclusion of the study was not only used to evaluate the lighting environment quality, but also used to guide the design of lighting environment in nursing institutions.
Pressurized Water Supply System of Energy Saving Optimization and Technical Innovation
Authors: Cui Feng Guo , Peng Sun , Yang Shi Dong
Published: November 2016

This paper analyzed the advantages and disadvantages as well as the applicability of pressurized water supply system. The following aspects were also summarized: 1) How to elect the overlying water-supply system 2) high-rise building pressurized water supply green energy saving considerations. 3) Reduction of the pipe leakage of cutting-edge technology, which focuses on the high-sensitivity, low-cost water quality monitoring technology. 4) Secondary pressurized water management, operation and scheduling as well as the establishment of relevant platforms, including wisdom water system construction, digital water supply system and secondary water supply management information system in figure.
Design and Analysis of the Health Monitoring System for the Steel Arch of the Main Stadium Roof in Nanjing Olympic Sports Center
Authors: Zhou Guang Pan , Li Ai Qun , Li Na , Li Jian Hui
Published: November 2016

For the purpose of grasping the stress state, vibration characteristics and safety of the steel arch in Nanjing Olympic Sports Center, which is the main support among the stadium roof system as well as the world's largest oblique arch structure, a real-time health monitoring system was established and the main achievements including the system constitution, monitoring items and layouts of measuring points were described. The monitoring data measured during the 2 years period from 2014 to 2016 as well as the SAP2000 finite element software were combined to conduct the status identification and safety evaluation. The results show that the simulation results are consistent with the measured date; The measured alignment of the large arch is relatively stable, although the structural stiffness of arch has weakened compared with the designed state, the low order vibration frequencies are stable during the 2 years period; The stress state of each monitoring component is at safe levels, and fluctuates within a small range affected by the extreme seasonal temperature changes.