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You searched for +publisher:"Delft University of Technology" +contributor:("Van der Tol, T.P.M."). Showing records 1 – 2 of 2 total matches.

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1. De Boeck, J. Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:.

Degree: 2013, Delft University of Technology

Tensegrity corresponds to a structural principle consisting of strut and tie elements forming a 3D ensemble. The amazing, impressive and unusual character of tensegrities leads to the wondering of structural and functional performance of tensegrity. This results in interest concerning possibilities of applying tensegrity as load carrying structure in a pedestrian bridge design. A concept presenting potential of tensegrity in bridge design is developed and analyzed. History of tensegrity, existing project, known shape, an over-view of information gained by sculpting 3D models are presented. A presentation of a 3 strut tensegrity module (module A), modeled with a FEM-analysis program follows. Combining several modules A leads to a first concept proposition for a bridge design. Next, a realization of a first alternative in tensegrity bridge concept based on a 3 strut tensegrity module (module B) is developed and presented. Node coordinates have been altered. Appurtenant structures are analyzed and compared, resulting in improved concept propositions. Similarities between the first concept and first alternative are observed. Knowledge gained from alternative one is used to improve the first concept resulting in a second working alternative. Evaluating both alternatives results in decision of developing the second alternative further. A variety of module combination for different spans is produced and results from FEM analyses are observed leading to the conclusion that less modules in a design improves effectiveness of the structure by reducing buckling issues. Replacing long deck elements by tensegrity systems result in a further optimization of the concept. Concluding analyses with static and dynamic observations leading to confirmation that bridge design using tensegrity as load carrying structural concept is possible and realistic. Exact statements concerning dynamics cannot be made, due to difficulties of determining frequencies and modal stiffness of the structure. Estimations of frequencies and velocities are made, demonstrating influence and importance of pre-stressing in the structure. Pre-stressing allows adjusting parameter such that problems of discomfort due to vibrations are prevented. However further developments of the concept should include pre-cautions allowing incorporating dampers after construction. Existing information concerning dynamics is insufficient for exact predictions on consequences of human induced vibrations. Advisors/Committee Members: Bijlaard, F.S.K., Kolstein, M.H., Borgart, A., Van der Tol, T.P.M..

Subjects/Keywords: tensegrity; bridge; pedestrian bridge; form finding; dynamics; prism; compression; tension

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

De Boeck, J. (2013). Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:bdab80b7-ed0e-4236-8e8f-74ff4ac75be5

Chicago Manual of Style (16th Edition):

De Boeck, J. “Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:.” 2013. Masters Thesis, Delft University of Technology. Accessed April 06, 2020. http://resolver.tudelft.nl/uuid:bdab80b7-ed0e-4236-8e8f-74ff4ac75be5.

MLA Handbook (7th Edition):

De Boeck, J. “Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:.” 2013. Web. 06 Apr 2020.

Vancouver:

De Boeck J. Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:. [Internet] [Masters thesis]. Delft University of Technology; 2013. [cited 2020 Apr 06]. Available from: http://resolver.tudelft.nl/uuid:bdab80b7-ed0e-4236-8e8f-74ff4ac75be5.

Council of Science Editors:

De Boeck J. Tensegrity bridges: Concept design of pedestrian bridges using tensegrity as load carrying system:. [Masters Thesis]. Delft University of Technology; 2013. Available from: http://resolver.tudelft.nl/uuid:bdab80b7-ed0e-4236-8e8f-74ff4ac75be5

2. Zel taat, S. Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:.

Degree: 2012, Delft University of Technology

Design of a lock gate for Nieuwe Zeesluis in IJmuiden becomes a challenge when the boundary conditions limit the choice for the conventional types of the gate. The available width of the lock does not allow a straight rolling gate to be considered as a possible alternative as it is in most similar cases. All the initial efforts of this study have been made in search of a new alternative to solve the space limit problem. After assessment of a number of feasible type of gates, finally, when the curved gate concept was introduced based on the concept of rolling gates and sliding gates, all the functional requirements of the design had to be met. This study investigates in three different structural alternatives for the curved gate in the concept development stage as well as three different operating systems and two different supporting systems. Based on certain design objectives, a final concept is chosen and is developed into a preliminary design. The design objective have been defined based a simple criteria of achieving the most benefit with the lowest investment possible. In this manner it is tried to increase the functionality of the design for gate structure. These objectives are basically: - Minimum use of movable devices - Minimum necessity of maintenance - Innovation - Simplicity The main challenge in the conceptual design is to find the optimum combination within the alternatives for the main compartments of the gate while every advantageous solution for a compartment, introduces a new problem in another. For making a better decision a framework is defined for the evaluation of the solutions and alternatives with the help of a score system which enables us to see which alternative is in line with the design objectives the most. Furthermore, the study presents a rather detailed design of certain compartments such as operational equipment, guidance devices, tracks, hydraulic bearings and sealing system. Structural and stability checks are done for the extreme load conditions, loads during the special combined movement and construction of the gate. This results in a preliminary design which is integrated and consistent in satisfying all the functional requirements of the design. The final and most important evaluation of the research study discusses the costs, safety, reliability and availability of the gate structure by means of a qualitative RAMS analysis accompanied by a cost comparison table. These two outcomes provide insight on applicability of the gate into the different situations but especially in this case study. This report will discuss the approach and steps in which the idea was developed and it answers the feasibility and applicability questions by the help of final results and evaluations. Report ends with presenting the conclusions of the work and giving a number of recommendations. Advisors/Committee Members: Vrijling, J.K., Van der Toorn, A., Abspoel, R., Langedijk, W.P.J., Van der Tol, T.P.M..

Subjects/Keywords: IJmuiden; lock gate; curved sliding gate; hydro-foot; feasibility study

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Zel taat, S. (2012). Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:2c23b4c3-8e68-43eb-b783-a180482e68b8

Chicago Manual of Style (16th Edition):

Zel taat, S. “Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:.” 2012. Masters Thesis, Delft University of Technology. Accessed April 06, 2020. http://resolver.tudelft.nl/uuid:2c23b4c3-8e68-43eb-b783-a180482e68b8.

MLA Handbook (7th Edition):

Zel taat, S. “Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:.” 2012. Web. 06 Apr 2020.

Vancouver:

Zel taat S. Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:. [Internet] [Masters thesis]. Delft University of Technology; 2012. [cited 2020 Apr 06]. Available from: http://resolver.tudelft.nl/uuid:2c23b4c3-8e68-43eb-b783-a180482e68b8.

Council of Science Editors:

Zel taat S. Innovative design for lock gates - curved sliding gate; case study: IJmuiden Nieuwe Zeesluis:. [Masters Thesis]. Delft University of Technology; 2012. Available from: http://resolver.tudelft.nl/uuid:2c23b4c3-8e68-43eb-b783-a180482e68b8

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