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PBL and B-Learning for Civil Engineering Students in a Transportation Course

Silva, Antonio Nelson Rodrigues da; Kuri, Nidia Pavan; Casale, Adriana
Fonte: ASCE-AMER SOC CIVIL ENGINEERS; RESTON Publicador: ASCE-AMER SOC CIVIL ENGINEERS; RESTON
Tipo: Artigo de Revista Científica
ENG
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The results of a pedagogical strategy implemented at the University of Sao Paulo at Sao Carlos are presented and discussed. The initiative was conducted in a transportation course offered to Civil Engineering students. The approach is a combination of problem-based learning and project-based learning (PBL) and blended-learning (B-learning). Starting in 2006, a different problem was introduced every year. From 2009 on, however, the problem-based learning concept was expanded to project-based learning. The performance of the students was analyzed using the following elements: (1) grades in course activities; (2) answers from a questionnaire designed for course evaluation; and (3) cognitive maps made to assess the effects of PBL through the comparison of the responses provided by the students involved and those not involved in the experiment. The results showed positive aspects of the method, such as a strong involvement of several students with the subject. A gradual increase in the average scores obtained by the students in the project activities (from 6.77 in 2006 to 8.24 in 2009) was concomitant with a better evaluation of these activities and of the course as a whole (90 and 97% of options "Good" or "Very good" in 2009, respectively). A growing interest in the field of transportation engineering as an alternative for further studies was also noticed. DOI: 10.1061/(ASCE)EI.1943-5541.0000115. (C) 2012 American Society of Civil Engineers.; Brazilian National Council for Scientific and Technological Development (CNPq); CNPq (Brazilian National Council for Scientific and Technological Development); CAPES (Postgraduate federal agency); CAPES (Postgraduate federal agency); FAPESP (Foundation for the Promotion of Science of the State of Sao Paulo); FAPESP (Foundation for the Promotion of Science of the State of Sao Paulo)

Some applications of random field theory in geotechnical engineering

Kafritsas, John C
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 79 leaves; 3746219 bytes; 3745976 bytes; application/pdf; application/pdf
ENG
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by John C. Kafritsas.; Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1980.; MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.; Bibliography: leaves 78-79.

Optimal deadrise hull analysis and design space study of naval special warfare high speed planning boats

Whalen, Todd E. (Todd Edward), 1972-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 65 leaves; 4852263 bytes; 4852019 bytes; application/pdf; application/pdf
ENG
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by Todd E. Whalen.; Thesis (S.M. in Naval Architecture and Marine Engineering)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.; Includes bibliographical references (leaves 64-65).

Strategy for penetrating engineering & construction markets in Southeast Asia for Singapore through BOT contract; Strategy for penetrating engineering and construction markets in Southeast Asia for Singapore through Build-Operate-Transfer contract

Fung, Dominic Chi Ho, 1978-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 116 p.; 9630539 bytes; 9630299 bytes; application/pdf; application/pdf
ENG
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by Dominic Chi Ho Fung.; Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.; Includes bibliographical references (p. 112-116).

Fundamental analysis and conceptual model for corporate strategy in global engineering and construction markets

Cheah, Yuen Jen, 1972-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 339 p.; 26770160 bytes; 26769917 bytes; application/pdf; application/pdf
ENG
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Strategic management as an academic field of study has spanned over four decades. As an interdisciplinary subject that enjoys concurrent contributions by allied disciplines such as economics and social science, numerous industries have benefited from applying tools and concepts developed within strategic management that are subsequently tailored to match their specific contexts. Strangely, although postured as one of the oldest and largest industries, the construction industry has largely chosen to omit the relevance of the subject in daily business operations. This is especially true in the United States, compared to the British who have embarked on such studies as early as the 1970s. Recent literatures have commented on inadequate management knowledge and systems perspective of civil engineers as they rise through the ranks and shoulder higher responsibilities of management. This is manifested by lackluster performance and failure of several international construction firms sampled in this research, the causes of which were least attributed to technical engineering issues and project management aspects. This doctoral research aims to bridge the knowledge gap in strategy and formulates a conceptual model suited for construction. Twenty-four large international construction firms originating in the U.S....

Use of sensors in monitoring civil structures

Daher, Bassam William, 1979-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 145 p.; 6867232 bytes; 6886348 bytes; application/pdf; application/pdf
EN_US
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This thesis surveys the use of sensors and sensor networks in monitoring civil structures, with particular emphasis on the monitoring of bridges and highways using fiber optic sensors. Following a brief review of the most widespread form of civil infrastructure inspection -- visual inspection -- the thesis describes the anatomy, mechanisms, and types of fiber optic sensors and characterizes the tradeoffs involved in choosing between fiber-optic and conventional sensor technologies. The thesis then presents a survey of contributions to this field, followed by a discussion of deployed applications of fiber-optic sensors, many of them in North America. The latter portion of the thesis first briefly discusses the emerging technology of wireless sensor networks and then presents an abbreviated case study comparing the costs and time required to deploy a fiber optic system to traditional visual inspection on the same structure. The case study suggests that the fiber optic sensors are a cost-effective technology, particularly when indirect savings are considered. The thesis concludes with some comments on the prospects and challenges for sensor technologies in civil infrastructure monitoring.; by Bassam William Daher.; Thesis (S.M.)--Massachusetts Institute of Technology...

Innovation in the AEC industry through wireless sensor networks; Innovation in the architecture, engineering and construction industry through wireless sensor networks

Ber Marti, Jordi, 1976-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 69 leaves; 3978444 bytes; 3985230 bytes; application/pdf; application/pdf
ENG
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I came to the Massachusetts Institute of Technology (MIT) to learn about technological innovation and entrepreneurship. More precisely, I wanted to know more about how to leverage Information Technology (IT) in the Architecture, Engineering and Construction (AEC) Industry. IT can introduce great efficiencies and productivity gains in construction.; by Jordi Ber Marti.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2005.; "June 2005."; Includes bibliographical references (leaves 67-69).

Counterterrorism civil engineering design

Jreissati, Wadih J. (Wadih Joseph), 1980-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 51 leaves; 3288028 bytes; 3287835 bytes; application/pdf; application/pdf
ENG
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by Wadih J. Jreissati.; Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2003.; Includes bibliographical references (leaf 51).

Topography effects in the 1999 Athens earthquake : engineering issues in seismology

Assimaki, Dominic, 1975-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 512 p.; 25919801 bytes; 25919600 bytes; application/pdf; application/pdf
ENG
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It is well known that irregular topography can substantially affect the amplitude and frequency characteristics of seismic motion. Macroseismic observations of destructive earthquakes often show higher damage intensity at the tops of hills, ridges and canyons than at lower elevations and on flat areas. Systematic seismic motion amplification over convex topographies has been confirmed by instrumental studies and also predicted by theoretical and numerical simulations of wave diffraction. Nonetheless, for the most part, the former have been limited to weak motion data and the later have treated topographic asperities as simple geometric irregularities on the surface of homogeneous, linearly elastic halfspaces. Despite the qualitative agreement between theory and observations on topography effects, there is still much uncertainty concerning the actual severity of amplification near topographic irregularities, inasmuch as predictive methods are still lacking on the quantitative aspects of seismic amplification near such features. Focusing of seismic rays by convex topographies does play a significant role as shown theoretically, yet it is not the only physical phenomenon involved. On the other hand, weak motion data may not be applicable to describe topography effects for strong shaking...

A solution to the inherent list on Nimitz class aircraft carriers

Wolfson, Dianna
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 159 p.; 6886968 bytes; 6893639 bytes; application/pdf; application/pdf
ENG
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Nimitz class aircraft carriers possess an inherent list to starboard that their list control systems (LCS) are typically unable to correct while under Combat Load Conditions. As a result, it has become necessary to use fresh water ballast in a number of inner bottom voids and damage control voids to augment the LCS. Maintaining liquid ballast in damage control voids is unacceptable, as it reduces the design counter flooding capability of the ship, and thus reduces ship survivability. In order to restore the ships operational flexibility and achieve the necessary/desired list correction, this study determines the effect of adding solid ballast to a series of voids/tanks identified on the 2nd, 4th, and 8th decks. Based on ballast density, tank location and capacity, ease of ballast installation, minor tank structural modifications, and a decision making cost analysis, solid ballast was determined to be the most advantageous for use in correcting the inherent list on the Nimitz class aircraft carriers. Fresh water ballast was also examined as a possible alternative, but not as extensively due to the large quantity of water required and its limited ability to achieve a list correction. Nimitz class aircraft carriers currently have an average list of 1.5 degrees and a KG of 47 feet.; (cont.) Since their allowable KG cannot exceed 48.5 feet...

Experimental investigation of tearing fracture in sheets under quasi-static loading

Roach, Michael L. (Michael Louis)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 162 leaves; 7587659 bytes; 7594467 bytes; application/pdf; application/pdf
ENG
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Although there has been interest in the behavior of metal plates under blast and projectile loading for many years, definitive open-source analysis has only been recently forthcoming. This analysis is most often in the form of scaled recreations of the dynamic blast event, or "live fire" tests. New developments in methods of recreating blast and projectile induced plate failure using a quasi-static approach provide possible, accurate, alternatives to the cumbersome and expensive live fire test. This research endeavors to develop an accurate, quasi-static method of recreating the petalling phase of blast and projectile failure in metal sheets, based on a modified trousers- type test. By using the trousers-type fracture test the overall plastic bending kinematics of the fractured petal is preserved, as well as the mixed mode (mode one and mode three) fracture. Through analytical and qualitative analysis, a testing apparatus to generate this trousers-type, plastic bending and mixed mode fracture was designed and machined. The apparatus was then used to test thin steel sheets of varying thickness (0.419 and 0.724mm) in order to validate the quasi-static method of recreating the petalling phase through a comparison with analytically derived results.; by Michael L. Roach.; Thesis (Nav. E.)--Massachusetts Institute of Technology...

Feasibility and design of blast mitigation systems for naval applications using water mist fire suppression systems

Kitchenka, Julie A
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 127 leaves; 5651918 bytes; 5657215 bytes; application/pdf; application/pdf
ENG
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The recent trend of using fine water mist systems to replace the legacy HALON- 1301 fire suppression systems warrants further study into other applications of the water mist systems. Preliminary research and investigation indicates that fine mists (20-25 pm droplet size) may reduce peak overpressures of a shock wave traveling through a space. Such pressure reductions could be used to mitigate the destructive effects of a shock wave (initiated by an explosive device) traveling through a structure. Currently these blast mitigation effects have only been demonstrated in small-scale shock tube tests and computer simulations. Uncertainty exists as to the scalability of such a system. The intention of this research is to investigate the applicability of such a blast mitigation system for shipboard use. Study into the degree of mitigation necessary to make a system practical for shipboard installation was conducted. In addition, a theoretical study of the mechanisms of blast mitigation using water mists was completed. Preliminary design of a full-scale system was examined.; (cont.) Given the recent trend toward tumblehome hull forms in future Naval Combatant designs, there exists strong applicability of this system in the "dead" spaces created by the shaping of the tumblehome hull. Further work is needed in numerical modeling and laboratory testing of specific phases of the mitigation. The end goal is a feasible design of a blast mitigation system to be used in the outermost spaces of Naval Combatants to protect interior vital system spaces.; by Julie A. Kitchenka.; Thesis (Nav. E.)--Massachusetts Institute of Technology...

The progressive synthesis of architecture and engineering in modern bridge design

Shabanowitz, Timothy B. (Timothy Brian)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 44 leaves; 14127873 bytes; 14127589 bytes; application/pdf; application/pdf
ENG
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History states that architects and engineers rarely operate in a peaceful environment as each have their own specific agendas to fulfill. The architect appeals to the plastic form of a building before tending to its structural behavior while the engineer tends towards the opposite. While both are striving for a workable structure, their priorities are mismatched. Bridge building, through history usually was considered an engineering feat as it was strictly constructed to traverse a crevasse, waterway or some other obstacle. However through the 20th century, the respective roles have evolved and bridges have become more than a mere span. The architect has revolutionized the art of building a bridge, but was it the technology of the engineer that helped propel the architect or was it just a simple awakening by the architectural community? By analyzing a variety of bridges by Santiago Calatrava and Robert Maillart among other architects and engineers that have been the most influential in this movement, and their construction process, form, materials, and design process, et al., it can be observed how the bridge building process has evolved. Bridge building is an engineering movement no more, but it is not an architectural movement either. In part...

The role of computer-aided drafting, analysis, and design software in structural engineering practice

De los Reyes, Adrian
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 103 p.; 31815672 bytes; 31815215 bytes; application/pdf; application/pdf
ENG
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Perhaps the greatest innovation in engineering in the last fifty years, computer software has changed the way structural engineers conduct nearly every aspect of their daily business. Computer-aided drafting, analysis, and design software are invaluable tools for any structural engineering firm. Given the growth, extensive competition, and demands of the industry, a firm cannot survive if it does not take advantage of the powers and capabilities that modem computer software offer. Computers have drastically altered the way engineers communicate with co-workers, clients, architects, and construction managers, improving the efficiency of the design delivery system and facilitating the conveying of design changes, issues, and concerns between all entities involved in a project. This software has optimized the structural drafting, analysis, and design processes in ways engineers never could have imagined possible half a century ago. These innovations not only add up to major savings in construction costs and increased profits for all parties involved in a project, but also to more accurate designs, quicker design completions, improved organization and sharing of data, and higher productivity within the engineering office.; (cont.) This thesis examines the applications of computer software in the structural engineering industry...

Evaluation of the engineering properties of clays with the piezocone penetrometer

Gadinsky, Seth P
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 300 leaves
ENG
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by Seth Philip Gadinsky.; Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1983.; MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING; Bibliography: leaves 200-206.

Network design and fleet allocation model for vessel operation

Li, Xiaojing, S.M. Massachusetts Institute of Technology
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 105 leaves; 4831060 bytes; 4835405 bytes; application/pdf; application/pdf
ENG
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Containership operators in the U.S. are confronted with a number of problems in the way they make critical fleet allocation decisions to meet the increase of shippers' demands. Instead of the empirical approach, this research describes an optimization method for the fleet allocation problem This methodology is applied by generating hypothetical values for a hypothetical firm. The endeavor of this method is to facilitate ship operations by allocating available fleet to maximize capacity and covering all the demands with the lowest cost The problem solving process is subdivided into three sub-models: the string simulation sub-model, the network design sub-model, and the fleet and cargo assignment sub-model. Each sub-model is explored by the combined approach of analysis and simulation, formulated as a Mixed Integer linear programming problem, implemented using the Optimization Programming language, and solved by CPLEX. This model provides several feasible fleet allocation proposals ranked by their profits, as well as yields the output of the detail cargo assignment at each port, the revenue, cost, and profit breakdown for each proposal.; (cont.) Subsequently, various scenarios can be studied in great detail by developing a User Interface in Java programming language based on a determined proposal. This interface allows the carrier to evaluate hundreds or thousands of fleet allocation scenarios and to quickly focus on key characteristics and options that are most relevant. This program extends the deterministic optimization method into a model supporting the solution to stochastic problems.; by Xiaojing Li.; Thesis (S.M. in Ocean Systems Management)--Massachusetts Institute of Technology...

Applications of CAD/CAM technology to avant-garde structural engineering; Applications of Computer Aided Design/Computer Aided Manufacturing technology to avant-garde structural engineering

Wodzicki, Christopher Peter, 1979-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 46 leaves; 2056798 bytes; 2056604 bytes; application/pdf; application/pdf
ENG
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Over the last decade improvements in design technology has taken grand steps in changing the way we build the structures of tomorrow. Conventional drafting software like AutoCAD and Microstation are being challenged by tools that go beyond the two dimensional representational abilities of paper documentation and replacing it with complex three dimensional virtual construction files that are more comprehensible and offer more flexibility with respect to design and also in terms of inter-professional communication. My interest's lie in the new dialectic emerging between architects and fabricators, who ironically sit at opposite ends of the construction spectrum yet are now collaborating with the help of modern-day software. I envision these new tools as being pivotal in both reassigning the roles of design and creating a more seamless construction process. It is this modified construction process that I intend to explore through this thesis.; by Christopher Peter Wodzicki.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2004.; Leaf 46 blank.; Includes bibliographical references (leaves 44-45).

Structural loading of cross deck connections for trimaran vessels

Rhoads, Jason L
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 176 p.; 1625179 bytes; 2504135 bytes; application/pdf; application/pdf
ENG
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This work investigates the fundamental relationships of wave loading on cross deck structures for trimaran vessels. In contrast with a monohull ship, trimaran vessels experience several possible structural loading cases including: longitudinal bending, transverse bending, torsional bending, spreading and squeezing of hulls, inner and outer hull slam pressures, wet deck slam pressures, loading from ship's motions, and whipping of slender hulls. This work investigates wave loading cases that result in transverse and torsional bending of the cross deck structure. The wave loading cases investigated include: side hull troughing and cresting in longitudinal waves, side hull torsion in longitudinal waves, and transverse hogging and sagging. For each of these load cases, a design load using a fully statistical sea state was derived using an analytical model of a trimaran represented by rigidly connected box barges. The design loadings with a reliability index of 5 for almost 500 trimaran configurations were calculated varying main hull length, side hull length, side hull transverse placement, and side hull longitudinal placement. The design loadings were curve fit to a fourth order polynomial in the three independent variables.; (cont.) The load predictions of the analytical box model of a trimaran were applied to a trimaran vessel with a realistic hull form using the finite element ship structural analysis program MAESTRO. Given the number of approximations and assumptions in the analytical model...

Development and integration of a new course in structural loads & systems in a civil engineering technology program

Aghayere, Abi; Aghayere, Abi
Fonte: American Society for Engineering Education Publicador: American Society for Engineering Education
Tipo: Conferência ou Objeto de Conferência Formato: 75067 bytes; application/pdf
EN_US
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One of the Civil criteria in ABET TC2K is that programs “apply current knowledge and adapt to emerging applications of technology,” such as, changes in the building codes. Structural design firms also have the expectation that Civil Engineering Technology (CET) graduates should be able to apply current codes to determine structural loads, required for the analysis and design of structures. While most CET programs expose their students to structural analysis and design using instructor or textbook-prescribed loads, few expose students to the detailed calculation of actual structural loads using current codes. Many jurisdictions in the United States, including New York State, have recently adopted the International Building Code (IBC), which contains the latest provisions on structural loads, including wind and seismic loads for buildings. Prior to 2002, in New York State, the building code only required buildings to be designed for wind loads using a very simple tabular method. Seismic loads were not considered. Under that dispensation, it was possible and feasible to integrate the topic of structural loads, dead, live, snow and wind load, into any one of the structural design courses, all-be-it at an elementary level. However...

The status of talent management in the South African consulting civil engineering industry in 2008: a survey

Oosthuizen,P; Nienaber,H
Fonte: Journal of the South African Institution of Civil Engineering Publicador: Journal of the South African Institution of Civil Engineering
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2010 EN
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Talent management, an integrated system of recruitment, development and retention of the required human capital at all organisational levels, is at the forefront of business agendas. Given the skills shortage in South Africa, talent management is expected to remain a business imperative especially in the science, engineering and technology arena. The importance of talent management stems from its role in achieving competitive advantage in order to realise the strategy of the organisation. In this paper the perceptions of people responsible for talent management in their respective organisations are presented to determine the status of talent management in the South African consulting civil engineering industry in 2008. The survey found that most respondents (94%) thought talent management was a priority but only 57% of them had some talent management initiative in place. The primary concern (55% of respondents) was to create a deep reservoir of successors at all hierarchical levels of the organisation. Inability to do so threatens not only the continuity of the organisation per se, but also the wealth-creating capacity of the country as a whole, since civil engineers play a primary role in creating and maintaining infrastructure.