Factors influencing formwork productivity

1993 ◽  
Vol 20 (1) ◽  
pp. 144-153 ◽  
Author(s):  
Gary R. Smith ◽  
Awad S. Hanna
Keyword(s):  
Key Words ◽  
Engineering Design ◽  
Work Hours ◽  
Daily Output ◽  
Daily Work ◽  
Construction Methods ◽  
Productivity Data ◽  
Factors Influencing ◽  
Measurable Factors

Estimates indicate that 30 to 70 percent of cast-in-place concrete cost is attributable to the assembly and stripping of formwork. This wide percentage range is partially due to factors that are not well understood with regard to their influence on productivity. The purpose of this paper is to identify the factors that influence formwork productivity and identify a methodology to evaluate productivity data. Two groups of factors were found to have a great effect on formwork productivity: non-measurable factors such as contract document and measurable factors such as engineering design. This paper discusses the effect of both groups of factors on the productivity of vertical formwork. To quantify the effect of the measurable factors on formwork productivity, a case study of the productivity of a crew of carpenters erecting wall formwork for a three-story underground parking structure is presented and analyzed. Data were collected by physically measuring the daily output of vertical formwork erected and the total daily work hours. Key words: formwork, productivity, construction methods.

Should it Stay or Should it Go?: A Case Study of Concept Screening in Engineering Design Industry

2019 ◽  
Author(s):  
Xuan Zheng ◽  
Scarlett R. Miller
Keyword(s):  
Engineering Design ◽  
Market Potential ◽  
Senior Executives ◽  
Design Problems ◽  
Daily Work ◽  
Team Environment ◽  
The Impact

Abstract While we know that poor decisions during concept screening can lead to great expenses including redesign costs, production postponement, and even product failure, little is known about what factors influence professional concept screening. Previous research in this area has mostly been conducted with students or used hypothetical design challenges with professionals. This is problematic because such research methods are based on challengeable assumptions leaving out the risks and consequences that professionals face in their daily work. Hence, the purpose of the current study was to investigate the process of professionals making screening decisions in situ and identify the impact of the perceived properties of ideas (i.e., riskiness, originality, and feasibility) and the role of the professionals (idea generators versus executives) in this process. Specifically, a mixed method in-situ study was conducted in a small electromechanical company which included shadowing a research and development team from the conceptual stage to a final pitch meeting to senior executives. In addition, surveys and interviews were conducted to identify what factors were impacting concept screening. The results showed both idea generators and executives were able to distinguish and move ideas with relatively high market potential forward and avoided taking risks during concept screening. However, the idea generators did not show any preferences on the originality or feasibility of the ideas, while the executives preferred to invest in ideas with high feasibility. The findings of this study drew a distinction between professional design studies solving real design problems in a naturalistic, collocated team environment and those in a laboratory setting and added to the understanding of factors that influence the decisions made during professional concept screening. They also provide a much-needed insight into how engineering design professionals screen ideas.

PELAKSANAAN HUKUM KEWARISAN ISLAM DI PENGADILAN AGAMA BANTEN

ALQALAM ◽  
2013 ◽  
Vol 30 (1) ◽  
pp. 158
Author(s):  
Yusuf Somawinata
Keyword(s):  
Key Words ◽  
Islamic Law ◽  
Survey Methods ◽  
Adopted Children ◽  
Inheritance Law ◽  
Library Research ◽  
The Ideal

This article aims at describing the obseroance of wasiat wajibah (compulsory bequeathment) in the Islamic court of Banten, analyzing the provision of the substitute heir and adopted children in the Compilation of  Islamic Law (KHI). In addition, the ideal laws to manage the innheritance rules in Indonesia. This article is library research by using doctrinal approach and using case study and survey methods. The data was, then, analyzed by using analytical descriptive and analytical correlative methods. The result showed that the observance of wasiat wajibah in the Islamic court of  Banten employed by judges is by using the Mawali Hazairin’s Doctrine. The criteria of the adoption of substitute heir and adopted children in the KHI is the attempts of Ulama and many judgees junst in giving legal justice and certainty to the society.   Key Words: Islamic Inheritance Law, Compilation of Islamic Law, Islamic court of  Banten

DESIGN-BUILD: AN EFFECTIVE APPROACH FOR ARCHITECTURE STUDIO EDUCATION

2018 ◽  
Vol 12 (2) ◽  
pp. 146 ◽  
Author(s):  
Nabil Mohareb ◽  
Sara Maassarani
Keyword(s):  
Material Selection ◽  
Environmental Constraints ◽  
Design Project ◽  
Construction Methods ◽  
Physical Scale ◽  
Design Build ◽  
Simulation Results ◽  
Education Process ◽  
Real Target

Current architecture studios are missing an important phase in the education process, which is constructing the students’ conceptual ideas on a real physical scale. The design-build approach enables the students to test their ideas, theories, material selection, construction methods, environmental constraints, simulation results, level of space functionality and other important aspects when used by real target clients in an existing context. This paper aims to highlight the importance of using the design-build method through discussing a design project case study carried out by the Masters of Architecture design programme students at Beirut Arab University, who have built prototype units for refugees on a 1:1 scale.

Idea generation with Technology Semantic Network

2021 ◽  
pp. 1-19
Author(s):  
Serhad Sarica ◽  
Binyang Song ◽  
Jianxi Luo ◽  
Kristin L. Wood
Keyword(s):  
Engineering Design ◽  
Common Sense ◽  
Semantic Network ◽  
Idea Generation ◽  
Semantic Distance ◽  
The Core ◽  
Design Idea ◽  
Design Ideas ◽  
Design Ideation

Abstract There are growing efforts to mine public and common-sense semantic network databases for engineering design ideation stimuli. However, there is still a lack of design ideation aids based on semantic network databases that are specialized in engineering or technology-based knowledge. In this study, we present a new methodology of using the Technology Semantic Network (TechNet) to stimulate idea generation in engineering design. The core of the methodology is to guide the inference of new technical concepts in the white space surrounding a focal design domain according to their semantic distance in the large TechNet, for potential syntheses into new design ideas. We demonstrate the effectiveness in general, and use strategies and ideation outcome implications of the methodology via a case study of flying car design idea generation.

Study on the Calculation Method of Soil-Nailing for High Soil Slope Based on the Logarithmic Spiral Slippery Fracture

2011 ◽  
Vol 261-263 ◽  
pp. 1709-1713
Author(s):  
Meng Yang ◽  
Xiao Min Liu
Keyword(s):  
Mathematical Model ◽  
Stability Analysis ◽  
Engineering Design ◽  
Calculation Method ◽  
Logarithmic Spiral ◽  
Soil Nailing ◽  
Soil Slope ◽  
Mode Pattern ◽  
Shear Function

This paper introduces a new failure mode pattern of soil slope – the logarithmic spiral slippery fracture. A mathematical model for the logarithmic spiral slippery fracture is established, taking the anti-shear function of the soil-nailing into consideration. The shear of soil-nailing, axial force, and the safety coefficients based on the limiting equilibrium method are derived, leading to an accurate stability analysis of the strengthening of soil slope. A case study shows that the anti-shear function of the soil-nailing can be significant and should not be ignored in engineering design.

The logic of formatting: A case study on transnational television production

2021 ◽  
Vol 9 (3) ◽  
pp. 391-408
Author(s):  
Jolien van Keulen ◽  
Tonny Krijnen ◽  
Joke Bauwens
Keyword(s):  
Business Models ◽  
Daily Work ◽  
Ownership Structures ◽  
Television Production ◽  
Media Companies ◽  
Content Development ◽  
Micro Level ◽  
Production Company ◽  
Selection Of

The transnationalization of television production has been examined by studies on formats and multinational media companies, which have often highlighted the resilience of the local in the global. This article investigates transnationalization on the micro level of television production, drawing on participant observations in a Dutch production company that is partly owned by an American conglomerate. It explores the deep entanglement of the local with the global in different facets of production – including legal, organizational and market aspects – as manifested in daily practices and decision-making in television production. Our analysis reveals an industrial logic of formatting that is not only induced by transnational ownership structures and business models but also deeply ingrained in production routines and programme conventions. Through this logic, transnationalization shapes media professionals’ daily work, the selection of programme ideas and the process of content development.

A practical approach for supporting decisions in bridge condition assessment and monitoring

2019 ◽  
Author(s):  
Dániel Honfi ◽  
John Leander ◽  
Ivar Björnsson ◽  
Oskar Larsson Ivanov
Keyword(s):  
Measurement Techniques ◽  
Condition Assessment ◽  
Illustrative Case ◽  
Public Authorities ◽  
Daily Work ◽  
Rational Decision Making ◽  
Bridge Condition Assessment ◽  
Assessment And Monitoring ◽  
Illustrative Case Study

<p>In this contribution a practical and rational decision-making approach is presented to be applied for common bridges typically managed by public authorities. The authors have developed a model with the intention to be applicable for practical cases for common bridges in the daily work of bride operators responsible for a large number of assets, yet still maintain the principles of more generic frameworks based on probabilistic decision-theory.</p><p>Three main attributes of the verification of sufficiency of structural performance are considered, namely: 1) the level of sophistication of modelling performance, 2) the degree of verification and acceptance criteria in terms of dealing with uncertainties and consequences, 3) the extent of information is obtained and incorporated in the verification.</p><p>The simplicity of the approach is demonstrated through an illustrative case study inspired by practical condition assessment decision problems. It is argued that in practical cases it may be desirable to utilize less advanced methods owing to constraints in resources or lack of reliable data (e.g. based on structural health monitoring or other on-site measurement techniques).</p>

ФОРМУВАННЯ ОСНОВ КОНКУРЕНТОСПРОМОЖОСТІ ФАХІВЦЯ СФЕРИ УПРАВЛІННЯ В ПРОЦЕСІ ПРОФЕСІЙНОЇ ПІДГОТОВКИ

2012 ◽  
Vol 33 ◽  
Author(s):  
Г. І. Матукова
Keyword(s):  
Key Words ◽  
Interactive Technologies ◽  
Interactive Training ◽  
The Future ◽  
Business Professional

У статті розкрито підхід до формування основ конкурентоспроможності фахівця сфери управління на засадах сучасних інтерактивних технологій навчання; показано можливості поетапної реалізації кейс-методу і його впливу на формування професійно важливих якостей майбутнього фахівця.Ключові слова: підприємництво, професійні якості, інтерактивне навчання, кейс-метод.  In articles approaches to formation of bases of competitiveness of the expert of sphere of management on starting positions of modern interactive technologies of training; it is shown possibility of stage-by-stage realization of a case-study and its influence on formation of professionally important qualities of the future expert. Key words: business, professional qualities, interactive training, a case- study.

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