INNOVATIVE DESIGN AND ERECTION SOLUTION FOR PORTAL FRAME INDUSTRIAL STEEL BUILDING ROOFS

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Maz Mahzari ◽  
Mandar N. Panvelkar
Keyword(s):  
Traditional Approach ◽  
Individual Member ◽  
Innovative Design ◽  
Long Span ◽  
Modes Of Failure ◽  
Traditional Design ◽  
Industrial Buildings ◽  
Safety Risks ◽  
The Impact ◽  
Individual Column

Traditional design and erection of long span steel portal frames for industrial buildings consists of individual column and rafter assemblies, with bolted connections at knee (Column-Beam) and apex joints (ridge). This method ensures expediency for an offsite member fabrication and application of the galvanized coating to individual members, before transportation to the work site followed by assembling and erection at the site. This traditional approach however also inherits safety risks associated with working at heights during member erection, alignment and jointing of individual member connections and during placement and fixing of cladding elements. In view of expediting the onsite construction and to mitigate the risk of working at height during erection, designers worked in tandem with contractors and fabricators to rearrange roof elements so as to allow the whole roof to be pre-fabricated on the ground and be lifted for installation matching with the column alignment. In particular, the portal connection at the column-beam knee joint was relocated and redesigned to suit installation ease. The impact of the proposed solution to the design is investigated herein. A rigorous risk analysis was employed to better understand the modes of failure and frame behavior, which in turn assisted in better identifying the design risks. Furthermore, the benefits achieved in the erection process through increased safety and efficiency are also highlighted.

AFRICA’S RENAISSANCE AND POTENTIAL IN THE LEATHER SECTOR WITH REFLECTION TO THE GLOBAL PERFORMANCE

2015 ◽  
Vol 2 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Mwinyihija M.
Keyword(s):  
Value Chain ◽  
Small And Medium Enterprises ◽  
Middle Level ◽  
Individual Member ◽  
Socioeconomic Indicators ◽  
Value Add ◽  
Medium Enterprises ◽  
The Impact ◽  
Productivity And Competitiveness ◽  
Critical Aspects

Africa’s renaissance is inevitable and rapidly emerging as a reality in tandem with the continent’s continued exploration of its natural resources in a more sustained way than previously done. Currently, the clarion call is to value add, avoid plundering and involve its population through the SME’s to adapt modern methods of entrepreneurship. During the study, critical aspects that are envisaged to trigger the growth and development of Africa, included the entry of major countries of the continent into the global emerging markets such as MINT (Mexico, Indonesia, Nigeria and Turkey) and BRICS (Brazil, Russia, India, China and South Africa). For the leather sector, certain socioeconomic indicators such as the youthful participation in the value chain, ownership status, literacy levels and acquired experiences are all contributing to a vibrant sector. It was observed that these indicators if well aligned with individual member states of African Union Commission and structured than productivity and competitiveness of leather products will be attained. As such, ease of either foreign direct investment, local recapitalization and development of the SME’s could become feasible. Indeed, with the emergence of over 300 million youth at middle level income level is construed to start building on the impact of the continents purchasing power. Therefore, Africa needs to respond by address on development of ICT, develop affordable financial support to provide stimulus packages to SME’s (Small and Medium Enterprises) to transform, improve on inter and intra trade to optimize on unexplored synergies and enhance mobility of persons with in Africa as preamble to Africa’s renaissance.

scholarly journals Implementation of smoke-free policies in mental health in-patient settings in England

2009 ◽  
Vol 194 (6) ◽  
pp. 547-551 ◽  
Author(s):  
Elena Ratschen ◽  
John Britton ◽  
Ann McNeill
Keyword(s):  
Mental Health ◽  
Policy Enforcement ◽  
Convenience Sample ◽  
Telephone Interviews ◽  
Smoke Free Policy ◽  
Safety Risks ◽  
Mental Health Settings ◽  
High Smoking Prevalence ◽  
Systematic Sample ◽  
The Impact

BackgroundMental health units in England had to become smoke-free by law from July 2008. Concerns regarding the implementation and enforcement of smoke-free policies in these settings have been raised.AimsTo study difficulties and challenges associated with smoke-free policy implementation in English National Health Service (NHS) mental health settings.MethodQuestionnaire survey of all 72 English NHS trusts providing mental health in-patient services and facilities, supplemented by semi-structured telephone interviews at a systematic sample of 7 trusts and site visits at a convenience sample of 5 trusts.ResultsQuestionnaires were returned by 79% of the trusts, all of whom had implemented smoke-free policies. Most respondents (91%) believed that mental health settings faced particular challenges, arising from the high smoking prevalence among patients (81%), related safety risks (70%), adverse effects on the clinician–patient relationship (36%), and potential interactions with antipsychotic medication (34%). Interviews indicated that sustained policy enforcement was perceived as difficult, but that despite challenges and concerns, the impact of the policy was regarded as beneficial, with some evidence of positive behavioural changes occurring in people.ConclusionsMany mental health trusts across England have implemented comprehensive smoke-free policies but the majority state that they are facing specific difficulties. Challenges and concerns need to be explored in depth and addressed to ensure that smoke-free policies implemented under the terms of the Health Act in July 2008 are not undermined.

IMPACT OF EDUCATIONAL ATTAINMENT ON WORKERS’ INCOMES

2021 ◽  
Vol 562 (1) ◽  
pp. 18-23
Author(s):  
Władysław Bogdan Sztyber
Keyword(s):  
Higher Education ◽  
European Union ◽  
Secondary Education ◽  
Income Level ◽  
Individual Member ◽  
The European Union ◽  
Member States ◽  
Level Of Education ◽  
The Impact ◽  
Oecd Data

The article presents the impact of the level of education of employees on their income in various terms. One of them is a study based on the OECD data from 2004–2005, which shows the differentiation of incomes of employees with different levels of education on the basis of the relative differentiation between them, assuming the income level of employees with upper secondary education as 100 and referring to it respectively the income level of employees with higher education and the level of income of employees with lower secondary education. The article then presents a more elaborate study of the impact of the level of education of employees on their incomes in the European Union, included in the Report “The European Higher Education Area in 2015”. This survey shows the impact of the education level of employees on the median of their gross annual income in the European Union and in the individual Member States. The article also compares the income differentiation depending on the level of education, based on the OECD data for 2004–2005, with the results of surveys on European Union Member States in 2010 and 2013.

scholarly journals Restauración paisajística de Cantera Rosales. Hellín (Albacete, España)

REVISTARQUIS ◽  
2016 ◽  
Vol 5 (2) ◽  
Author(s):  
José Durán Fernández ◽  
Daniel Moreno Ruiz
Keyword(s):  
Design Methodology ◽  
Mining Activity ◽  
Land Art ◽  
Innovative Design ◽  
Ornamental Stone ◽  
Geometric Reconstruction ◽  
Man And Nature ◽  
The Impact ◽  
Near Future ◽  
The Relationship

ResumenEl texto describe y dibuja una estrategia de recuperación ecológica de una explotación minera de piedra ornamental en activo, situada en el entorno del parque arqueológico del Tolmo de Minateda, en el Término municipal de Hellín (Albacete, España). En el año 2015, la empresa Areniscas Rosal, propietaria de los derechos de explotación de dicha cantera, encargó a la oficina de Arquitectura y Urbanismo SSS (Spanish Studio of Space) un Plan de Restauración para establecer las directrices básicas de una recuperación paisajística que revierta el impacto de la actividad extractiva en un futuro próximo. El proyecto, fundamentado en la filosofía del Land Art, es una reconstrucción geométrica del terreno por medio de la reutilización de los sobrantes de la propia actividad, para así crear un paisaje totalmente nuevo y contemporáneo. El reciclaje, la re-vegetación y una solución proyectual innovadora fundamentan las directrices de esta intervención paisajística y territorial. Las posibilidades de reutilización y disfrute de este nuevo entorno natural podrán ser variadas y enriquecedoras y solo dependerán de una gestión sensible y respetuosa de la relación del hombre con la naturaleza. AbstractThe former document describes and draws a strategy of ecological recovery of an ornamental stone mine in active, located in the archaeological park environment of Tolmo de Minateda in the municipality of Hellín (Albacete, Spain). Back in 2015, the company Rosal Sandstones, which owns the rights to exploit the quarry, commissioned the Office of Architecture and Urbanism SSS (Spanish Studio of Space) a Restoration Plan in order to establish the basic guidelines for a landscape recovery to revert the impact of mining activity in the near future. The project, based on the philosophy of Land Art, is a geometric reconstruction of the ground by means of reusing the leftovers of the activity itself, to thereby create a totally new and contemporary landscape. Recycling, re-vegetation and innovative design methodology solutions substantiate the guidelines of this landscape and territorial intervention. The possibilities for reusability and enjoyment of this new natural environment can be diverse and enriching and, only depend on a sensitive and respectful management of the relationship between man and nature.

scholarly journals THE ENGINEERING METHOD FOR UNIFYING GROUND FLOOR SLAB SETTLEMENTS

2021 ◽  
Vol 12 (2) ◽  
pp. 46-52
Author(s):  
Kęstutis Urbonas ◽  
Danutė Sližytė ◽  
Antanas Šapalas
Keyword(s):  
Engineering Method ◽  
Pile Foundations ◽  
Floor Slab ◽  
Ground Floor ◽  
Actual Behaviour ◽  
Industrial Buildings ◽  
Calculation Results ◽  
The Impact

For industrial buildings and logistics centres truck lifts are usually used. Therefore, there are special requirements for flatness tolerance of ground floor. The ground floor settlements differences in selected distances are limited. The article reviews the behaviour of soils and the importance of the actual behaviour assessment of soils during the design of floor slab on elastic subgrade. Particular attention is given to the behaviour of floor slab areas above pile foundations that support the building’s columns. Calculation results show the impact of subgrade stiffness on the behaviour of the floor slab, especially in areas above pile foundations, where the stiffness of subgrade is much higher. The article presents a solution for achieving the required level of settlements’ differences in areas where pile foundations for the building’s columns under the ground slab are used. The paper proposes an efficient engineering method to reduce ground slab settlements differences. The results of performed calculations confirm the efficiency of presented method.

Performance and Lightweight Thermoplastic Materials for Automotive Application using Hollow Microspheres

2014 ◽  
Vol 611-612 ◽  
pp. 859-867 ◽  
Author(s):  
Awa S. Doumbia ◽  
Denis Jouannet ◽  
Thierry Falher ◽  
Laurent Cauret
Keyword(s):  
Glass Fibers ◽  
Pilot Scale ◽  
Melt Processing ◽  
Hollow Microspheres ◽  
Automotive Application ◽  
Regulatory Requirements ◽  
Innovative Design ◽  
Passenger Vehicles ◽  
Mineral Fillers ◽  
The Impact

In recent decades, the weight of passenger vehicles has constantly increased. This leads to a rise in fuel consumption and higher CO2 emissions. On this basis, vehicle weight reduction is a privileged research axis to meet regulatory requirements on emissions by 2020. The current study is focused on the development of thermoplastic polymer used in the automotive sector. In fact, thermoplastic polymers allow innovative design and offer the advantage of being recycled for sustainable development purposes. Some lighter fillers were incorporated in this polymer by melt processing for weight saving benefits. We were interested mainly in hollow microspheres which are lower density than conventional mineral fillers (such as: talc, calcium carbonate, glass fibers etc ...). This study explores the impact of pilot-scale melt-processing on six (6) hollow microspheres embedded in high impact polypropylene commonly used for car bumpers. We found that two commercially available microspheres (grades iM30K and K37) withstand melt-processing successfully and reduce the polymer density.

An algorithm for the 3D ROck Slope Kinematic Analysis (ROKA) based on RPAS digital photogrammetry data.

2021 ◽  
Author(s):  
Niccolò Menegoni ◽  
Daniele Giordan ◽  
Cesare Perotti
Keyword(s):  
Kinematic Analysis ◽  
Rock Slope ◽  
Traditional Approach ◽  
Rock Slopes ◽  
Digital Photogrammetry ◽  
Modes Of Failure ◽  
Wedge Sliding ◽  
Flexural Toppling ◽  
The Stability ◽  
Digital Outcrop

<p>Among the several adopted methods for the kinematic analysis of the possible modes of failure that could affect a rock slope, the Markland test is the most used. Whereas, it has the advantage of being simple and fast, it has some limits, as the impossibility to manually consider the several different slope orientations and their interaction with the discontinuity dimensions and positions.</p><p>Recently, the improvements in the Remote Piloted Aerial System (RPAS) digital photogrammetry techniques for the development and mapping of Digital Outcrop Models (DOMs) have given the possibility of developing new automatized digital approaches. In this study, ROKA (ROck slope Kinematic Analysis) algorithm is presented. It is an open-source algorithm, written in MATLAB language, which aims to perform the kinematic analysis of the stability of a rock slope using the discontinuity measurements collected onto 3D DOMs. Its main advantage is the possibility to identify the possible critical combination between the 3D georeferenced discontinuities and the local surface of the slope. In particular, the critical combinations that can activate the planar sliding, flexural toppling, wedge sliding and direct toppling modes of failures can be detected and highlighted directly on the DOM. Hence, the ROKA algorithm can make the traditional approach for the kinematic analysis of a rock slope more effective, allowing not only to simplify the analysis, but also to increase its detail. This can be very important, in particular, for the analysis of large and complex rock slopes.</p>

The Impact of Personality on Virtual Team Creativity and Quality

2011 ◽  
pp. 647-655
Author(s):  
Rosalie J. Ocker
Keyword(s):  
Virtual Teams ◽  
Synchronous Communication ◽  
Individual Member ◽  
Team Creativity ◽  
Face To Face ◽  
Team Outcomes ◽  
Individual Personality ◽  
High Level ◽  
The Impact

A series of experiments investigated creativity and quality of work-product solutions in virtual teams (Ocker, forthcoming; Ocker, 2005; Ocker & Fjermestad, 1998; Ocker et al., 1998; 1996). Across experiments, small teams with about five graduate students interacted for approximately two weeks to determine the high-level requirements and design for a computerized post office (Goel, 1989; Olson et al., 1993). The means of interaction was manipulated in these experiments such that teams interacted via one of the following treatments: (1) asynchronous computer-medicated communication (CMC), (2) synchronous CMC, (3) asynchronous CMC interspersed with face-to-face (FtF) meetings, or (4) a series of traditional FtF meetings without any electronic communication. A repeated finding across experiments was that teams interacting only using asynchronous CMC – that is, teams without any FtF or synchronous communication -- produced significantly more creative results than teams in the other treatments. Additionally, asynchronous virtual teams rated high in creativity were generally not the same teams that were judged high in terms of the quality of their deliverable. To further examine these findings, this chapter presents results of an exploratory study designed to investigate the impact of individual personality facets on team outcomes. The objective of this study is to determine whether differences in team outcomes – in terms of the level of creativity versus the quality of the team deliverable – can be predicted by individual member personality.no abstract

Securing Niagara (1852–55)

2020 ◽  
pp. 344-395
Author(s):  
Richard Haw
Keyword(s):  
United States ◽  
Suspension Bridge ◽  
The United States ◽  
Railroad Bridges ◽  
Long Span ◽  
Runaway Slaves ◽  
The Impact ◽  
Egyptian Architecture

The Niagara contract was a fitting judgment on John’s career to date, and the bridge itself was a triumph, eliciting praise and admiration from all over the globe, for both its handsome Egyptian architecture and the soundness of its design. It took four years to build and was the world’s first railroad suspension bridge, or at least the first successful one, fully demonstrating the strength and effectiveness of the suspension plan for heavy-going freight. It also compared very favorably with Robert Stephenson’s recently completed Britannia Tubular Bridge, the British engineer’s rival solution to the problem of long-span railroad bridges. A lifelong, committed abolitionist who wrote extensively about the evils of slavery, John also appreciated the impact his bridge had (somewhat incidentally) on the institution of slavery. Harriet Tubman (among others) used John’s bridge numerous times in the late 1850s to lead runaway slaves out of the United States and into British Canada.

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