In this thesis, the design in construction management is defined as the design meets the requirements of the constructor. There are a range of definitions of design, but in this paper ＂design＂ refers to something, w...In this thesis, the design in construction management is defined as the design meets the requirements of the constructor. There are a range of definitions of design, but in this paper ＂design＂ refers to something, which has been planned and made and a pattern for decorating in something in the term of construction. Rumane says （2010）the design involves two processes. The first thing is analyzing and designing components and structure on the basis of recognized codes and standards of safety. The other is that designers conduct the information in the form展开更多
Leeward of natural elevations, like mountains and hills, the air flow becomes turbulent and often times damaging and hazardous to aviation and downwind populations. There is currently a trend for massive construction ...Leeward of natural elevations, like mountains and hills, the air flow becomes turbulent and often times damaging and hazardous to aviation and downwind populations. There is currently a trend for massive construction projects, the result of which are megastructures that behave similarly to these natural elevations and create analogous turbulence conditions. Examples five mega projects were analyzed, and it was estimated that the Reynolds number variation in these buildings, is from 6.10g and 7.109, for winds between 10 m/s and 50 m/s. In this work, the authors present a first numerical approach to this phenomenon by calculating the Strouhal numbers induced by winds blowing against large-volume bodies, in the range of high Reynolds numbers. For this study, satellite images depicting von K^irm^n cloud streets leeward of isolated islands were used. The methodology employed was based on a satellite image where streets watch von K^rnfin vortex, from NOAA-ARL （National Oceanic and Atmospheric Administration-Air Resource Laboratory） prognosis was obtained for a grid point near the island, then determined the inversion layer and meteorological data （wind, temperature and pressure）, was measured from the satellite image the distances separating the vortices to calculate the period, the Reynolds number and Strouhal. The studied results of the cases are displayed graphically, where it is possible to observe a data dispersion as well as a rising trend of the Strouhal number as the Reynolds number increases.展开更多
The challenges of today＇s world require college students have different skills and know how to apply the knowledge acquired to solve new situations. The traditional mode of teaching with lectures, still present in ma...The challenges of today＇s world require college students have different skills and know how to apply the knowledge acquired to solve new situations. The traditional mode of teaching with lectures, still present in many subjects of the engineering, seems to favor the development of the necessary skills, as active use of knowledge required [ 1 ]. However, they are using simulation games as an educational method in many universities in the world for the advantages they present for learning and the development of various skills, to simulate specific situations of professional activity [2]. This paper presents some background and requirements that games must meet educational purposes and propose their use in subjects related to economics, management and organization of production engineering programs where you can teach and learn from building products with simple items like cardboard paper on the theory of constructionism to build a product where people are building theories and knowledge in the mind [3]. The use of games is not widespread in universities in Argentina, however you can generate more motivating learning situations as it leaves the board becoming less abstract and more concrete learning. Classroom climate changes as students take a more participatory role and the teacher intervenes as a guide or facilitator of learning. This work could motivate teachers and researchers to promote their use in teaching and in future research to evaluate the potential of its use as a learning tool.展开更多
This research management, exp and lores preliminarily the practices of quality management, management commitment in quality quality management implementation problems in construction projects in the context of Malaysi...This research management, exp and lores preliminarily the practices of quality management, management commitment in quality quality management implementation problems in construction projects in the context of Malaysian construction industry. The research applies semi-structured interview approach with twelve project management practitioners. The findings of the study indicate that the state of quality management in construction projects in Malaysia needs to be strengthened and there are problems in relation to quality management implementation that require attention and further research. The paper provides an insight on the state of quality management in construction projects in Malaysia.展开更多
In discussing coal mine entry construction with rock bolt technology, examinedthe craft and machinery problems as well as the conditions in which to use each kind ofmachine and tool.It exposed the intrinsic flaws of t...In discussing coal mine entry construction with rock bolt technology, examinedthe craft and machinery problems as well as the conditions in which to use each kind ofmachine and tool.It exposed the intrinsic flaws of the widely used road header.The problemis that it was designed according to early timbering support state but is not suitable forrock bolt technology.The way to improve the function of existing road headers is notthrough parallel operations but using the SUDM (Shield Union Driving Machine), which isa new machine that improves construction.This article proposed a few solutions in designto solve this problem.展开更多
Adopting the BOT （build-operate-transfer） delivery method has brought opportunities and challenges in construction time and quality for urban infrastructure. Many studies investigate the upstream issues of BOT proje...Adopting the BOT （build-operate-transfer） delivery method has brought opportunities and challenges in construction time and quality for urban infrastructure. Many studies investigate the upstream issues of BOT projects such as concessionaire selection criteria and risk factors. But the project execution becomes complicated such as the escalated quality supervision organization and procedure at the construction stage. This extra supervision may have constituted hidden redundancies as waste to economic sustainability. This paper investigated construction quality supervision of BOT projects to pinpoint adequate degree of supervision and detect redundant organization and procedures. The study adopted ten subway construction projects as cases in which five were from the traditional design-bid-build （DBB） and five from the BOT methods. Thirty six project participants including owners, contractors, designers, and concessionaire managers of the ten projects were interviewed to tell their views on these issues. The quality supervision measures of the DBB projects were used as the baseline and compared with those of the BOT projects. The research results show that the construction quality seems no difference for the DBB and BOT projects. Construction quality comes out of supervision but excessive supervision organization and procedures do not necessarily improve quality. This finding indicates that adequate degree of supervision is enough to achieve required quality to save immense paperwork for large construction projects.展开更多
文摘In this thesis, the design in construction management is defined as the design meets the requirements of the constructor. There are a range of definitions of design, but in this paper ＂design＂ refers to something, which has been planned and made and a pattern for decorating in something in the term of construction. Rumane says （2010）the design involves two processes. The first thing is analyzing and designing components and structure on the basis of recognized codes and standards of safety. The other is that designers conduct the information in the form
文摘Leeward of natural elevations, like mountains and hills, the air flow becomes turbulent and often times damaging and hazardous to aviation and downwind populations. There is currently a trend for massive construction projects, the result of which are megastructures that behave similarly to these natural elevations and create analogous turbulence conditions. Examples five mega projects were analyzed, and it was estimated that the Reynolds number variation in these buildings, is from 6.10g and 7.109, for winds between 10 m/s and 50 m/s. In this work, the authors present a first numerical approach to this phenomenon by calculating the Strouhal numbers induced by winds blowing against large-volume bodies, in the range of high Reynolds numbers. For this study, satellite images depicting von K^irm^n cloud streets leeward of isolated islands were used. The methodology employed was based on a satellite image where streets watch von K^rnfin vortex, from NOAA-ARL （National Oceanic and Atmospheric Administration-Air Resource Laboratory） prognosis was obtained for a grid point near the island, then determined the inversion layer and meteorological data （wind, temperature and pressure）, was measured from the satellite image the distances separating the vortices to calculate the period, the Reynolds number and Strouhal. The studied results of the cases are displayed graphically, where it is possible to observe a data dispersion as well as a rising trend of the Strouhal number as the Reynolds number increases.
文摘The challenges of today＇s world require college students have different skills and know how to apply the knowledge acquired to solve new situations. The traditional mode of teaching with lectures, still present in many subjects of the engineering, seems to favor the development of the necessary skills, as active use of knowledge required [ 1 ]. However, they are using simulation games as an educational method in many universities in the world for the advantages they present for learning and the development of various skills, to simulate specific situations of professional activity [2]. This paper presents some background and requirements that games must meet educational purposes and propose their use in subjects related to economics, management and organization of production engineering programs where you can teach and learn from building products with simple items like cardboard paper on the theory of constructionism to build a product where people are building theories and knowledge in the mind [3]. The use of games is not widespread in universities in Argentina, however you can generate more motivating learning situations as it leaves the board becoming less abstract and more concrete learning. Classroom climate changes as students take a more participatory role and the teacher intervenes as a guide or facilitator of learning. This work could motivate teachers and researchers to promote their use in teaching and in future research to evaluate the potential of its use as a learning tool.
文摘This research management, exp and lores preliminarily the practices of quality management, management commitment in quality quality management implementation problems in construction projects in the context of Malaysian construction industry. The research applies semi-structured interview approach with twelve project management practitioners. The findings of the study indicate that the state of quality management in construction projects in Malaysia needs to be strengthened and there are problems in relation to quality management implementation that require attention and further research. The paper provides an insight on the state of quality management in construction projects in Malaysia.
文摘In discussing coal mine entry construction with rock bolt technology, examinedthe craft and machinery problems as well as the conditions in which to use each kind ofmachine and tool.It exposed the intrinsic flaws of the widely used road header.The problemis that it was designed according to early timbering support state but is not suitable forrock bolt technology.The way to improve the function of existing road headers is notthrough parallel operations but using the SUDM (Shield Union Driving Machine), which isa new machine that improves construction.This article proposed a few solutions in designto solve this problem.
文摘Adopting the BOT （build-operate-transfer） delivery method has brought opportunities and challenges in construction time and quality for urban infrastructure. Many studies investigate the upstream issues of BOT projects such as concessionaire selection criteria and risk factors. But the project execution becomes complicated such as the escalated quality supervision organization and procedure at the construction stage. This extra supervision may have constituted hidden redundancies as waste to economic sustainability. This paper investigated construction quality supervision of BOT projects to pinpoint adequate degree of supervision and detect redundant organization and procedures. The study adopted ten subway construction projects as cases in which five were from the traditional design-bid-build （DBB） and five from the BOT methods. Thirty six project participants including owners, contractors, designers, and concessionaire managers of the ten projects were interviewed to tell their views on these issues. The quality supervision measures of the DBB projects were used as the baseline and compared with those of the BOT projects. The research results show that the construction quality seems no difference for the DBB and BOT projects. Construction quality comes out of supervision but excessive supervision organization and procedures do not necessarily improve quality. This finding indicates that adequate degree of supervision is enough to achieve required quality to save immense paperwork for large construction projects.
