My name is Daniel Tjondro ’20 and I’m majoring in Civil and Environmental Engineering whilst working towards certificates in Environmental Studies and Urban Studies. I’m from Queens, NY, which is by far the best borough in NYC. In my free time, I enjoy playing Teamfight Tactics, cubing, and juggling. For my senior thesis, I’m working with Professor Adriaenssens to create an assessment system for evaluating redevelopment projects of brownfield sites in NYC. I’m especially interested in studying the potential of incorporating urban eco-efficiency into the assessment system and comparing my work to the assessment systems that already exist for renewal projects. Can’t wait to see where this thesis takes me and what life after Princeton will be like!
My undergraduate studies have been an interdisciplinary combination of Engineering, Environmental Science, Architecture, and further relevant topics in the areas of Science, Design, and the Humanities. My culminating thesis offers a concrete embodiment of self-organizing systems in the form of a self-assembling structure. Based in origami mechanics, this architectural design is aimed at folding flat-sheet modules with minimal labor to reduce energy and material consumption of construction. Via an iterative process of parametric optimization, life cycle assessment, and material testing I aim to produce a durable self-assembling pavilion. Post-graduation I plan to work in sustainable design, environmental science, and urban planning.
My name is Ameen Moshirfar and I am a senior in the Civil Engineering Department pursuing certificates in Architecture and Computer Science. I am from Salt Lake City, Utah, and I love rock climbing, pottery, and playing guitar. During the 2019-2020 school year, I will be working with Professor Sigrid Adriaenssens to study design and fabrication techniques of origami structures. The ultimate goal will be to arrive at a design that can function as an emergency shelter or off-grid home. Using origami simulators and finite element modeling, I will create a design that optimizes flat foldability, ease of deployment, and stability. I am excited to be a part of the Form Finding Laboratory, and work at what I see to be an intriguing intersection of Civil Engineering, Architecture, and Computer Science.
I first became involved in research in the field of structural art when looking for a senior thesis project that explored the interface between science and art during my time as an undergraduate student at Princeton. With Prof. Adriaenssens as my adviser, I explored curved-crease origami as an acoustic metamaterial in the interest of developing adaptable highway sound barriers. As a concentrator in Geosciences, I had previously studied computational geophysics, in which I learned about modeling waves. As follows, the research I did senior year was mainly focused on acoustic experiments that tested the effect of curved-crease geometries on the acoustics of spaces. Moving forward, I hope to continue to aid in the research and development of adaptable sound barriers using curved-crease origami designs and intend to contribute to the further stages of this project.
Amber Lin ’19 is a Civil Engineering and Architecture major from Edison, NJ currently doing research in erosion protection for rammed earth construction in temperate climates. She will be part of a team designing, building, and monitoring a rammed earth gazebo and test walls to be built in the Forbes Garden this summer. As an inaugural PACE Center Bogle Fellow, she will also work on integrating service and sustainability education components to the research project by organizing service days for volunteers and creating signs in the garden for visitors to learn more about the garden, rammed earth, and sustainable practices in general. Today, Amber is currently working on a tool that quantifies and incentives users to reduce their carbon footprint as part of her senior thesis.
My name is Nyema Wesley and I am a senior in the Department of Civil and Environmental Engineering. For the 2018-2019 school year, I will be working under Prof. Sigrid Adriaenssens and Prof. Maurizio Chiaramonte of Princeton University, along with supporting faculty at the Tokyo Institute of Technology, to study the response behavior of Japanese timber pagodas subject to earthquake forces. In particular, I will use finite element analysis to assess whether the seismic energy dissipation of pagodas are primarily due to the mass damping of their central column or the frictional sliding of their wooden connections.
I am currently a senior in the Civil and Environmental Engineering Department. My concentration is Structural Engineering with a certificate in Architecture and Engineering. My interests lie in sustainable engineering and vernacular architecture. I have the pleasure of working with Professor Sigrid Adriaenssens and her team at the Form Finding Lab on my senior thesis which aims to explore bamboo grid-shell formwork. I aim to present a viable and novel design for a bamboo grid-shell shelter that can be incorporated with renewable energy to provide a holistically sustainable engineered solution in Cali, Colombia.
Hi, my name is James Gales Jr. and I am a senior in CEE department. On campus I am a part of the Varsity Football team as well as a member of Cannon Dial Elm Club. I am excited to once again have Prof. Adriaenssens as an advisor. For my senior thesis I will be looking at the feasibility of different designs of retractable roof structures to cover Powers Field at Princeton Stadium. I hope to potentially find a design that is feasible enough that it could possibly put to use in the future.
I am a senior undergraduate student in the Civil and Environmental Engineering Department. I am following the Structural Engineering concentration and also pursuing a certificate in Finance. I have had the pleasure to work with Professor Adriaenssens in her “Mechanics of Solids” and “Extraordinary Processes” classes. I am currently working with her on my senior thesis. My thesis will explore the use of ice as a structural material. I will be specifically focusing material properties and construction methods for thin-shelled ice structures. I hope to discover efficiencies that can be applied to both functional ice structures and the construction process of more permanent structures that rely on compressive strength.
Like many other seniors, I am both anxious and excited to be working on my senior thesis for the 2016-2017 school year – but very happy to be working with Prof. A again! I am fascinated by the intersection of architecture and engineering in the design of the built environment. In the past, the two fields were not so disparate – there existed a single profession, the master builder, who both designed and constructed buildings. Many of these builders created amazing masonry structures that we still admire decades, centuries, and millennia later. Because these historic structures are susceptible to changes in the environment such as earthquakes, we need reliable methods of assessment for masonry structures. Intuitive graphical methods are reliable and efficient in assessing stability, but computational modeling of masonry collapse mechanisms is relatively recent. This year I’m working comparing the results of these graphical methods with computational modeling by assessing the stability of masonry arches and vaults.
My senior thesis within the structural track combined a unique environmental component as well. In response to two major earthquakes in the Spring of 2015 that hit Nepal and devastated its fragile infrastructure, my research focused on understanding the collapse behaviors of traditional earthen buildings. Particularly, I studied the earthquake loading capacity of rammed earth walls. Rammed earth construction has recently regained popularity around the world as a sustainable building alternative to traditional concrete. This project introduced a simple kinematic analysis approach to model the overturning collapse mechanism of a rammed earth wall, and evaluate the lateral loading capacities of such walls. A theoretical analysis as well as laboratory testing of the soil and full scale field tests at Princeton University and in Nepal were all conducted during the yearlong research project. Furthermore, multiple site visits were made to rammed earth homes that had survived the major earthquakes in Nepal in an attempt to characterize potential crack patterns in the walls. Ultimately, through these preliminary tests, my research demonstrated the viability of the kinematic model is approximating the lateral loading capacity of in reinforced and unstabilized rammed earth walls.
Hello, my name is Michael Manhard, and I am a senior undergraduate student in the Department of Civil and Environmental Engineering. My primary focus is on structures, while also pursuing a certificate in Applications of Computing. As a member of the varsity diving team, I have chosen to explore the performance and behavior of competition diving boards for my senior thesis.
Most competitive springboard divers would agree that a consistent diving board is key to a successful performance. Unfortunately, every diving board offers a unique “feel” to it that can alter how a diver will be able to utilize it. Through my research, I aim to quantify the inconsistencies in the performance of competition diving boards and to identify the factors that cause these inconsistencies. Ultimately, I intend to reduce the effects of these factors, so divers can focus solely on their own performance rather than that of the equipment
I am a senior in Civil and Environmental Engineering pursuing the Architecture and Engineering track – Structures focus. My allegiance with the Form Finding Lab began in my sophomore year, when I investigated the energy impact of installing dynamic adaptive shading modules on the façade of the Friend Center for Engineering in Princeton. This year, my senior thesis with Prof. Adriaenssens focuses on designing a foldable programmable sheet that is easy to manufacture, control and does not require prohibitive maintenance. My project aims to develop an origami system made out of interconnected rigid triangulated components and memory shape alloy actuators that can move and control the folding of the system’s edges. Such a dynamic system allows for a wide range of possible single and double curved structural surfaces starting from an overall flat configuration.
Diagram of the proposed adaptive system design. The red triangles represent the rigid surfaces, while the green connections represent the actuators.
I am senior in the Civil and Environmental Engineering department pursuing the “Engineering and the Liberal arts track” and interested in further studying architecture from a more quantitative background. The work that I do with Professor Adriaenssens consists of my senior thesis project. Through the flexibility of my degree track, as well as the program of the Form Finding lab, the senior thesis allows me to combine my interests in various areas such as art, architecture, engineering and computational design. Thus, my intent is to use this multidisciplinary background to approach questions that lie at the intersection of the fields and ultimately to explore how the answers to such questions can translate to practical applications of engineering and design to help solve issues of concern in our society. My work in concerned mainly with adaptable structures, whose transformation in response to stimuli, has a functional role.
Within the context of sustainable design, much focus is currently placed on the energy efficiency of structures. However, there has been less focus on the reuse and disposal of buildings at the end of their life cycle. In particular, the construction of sports venues for a single major event poses a problem as their use is significantly reduced after the event. My thesis aims to address this issue through the design of an improved modular structure which can be used as part of a stadium structure. There have been great improvements in design for reuse, with the London 2012 Olympic Games having the largest number of temporary structures of any Olympics to date and only building new structures that would have a sustainable legacy after the closing of the games. I aim to expand this notion of building for deconstruction and reuse by taking into account sustainability alongside structural soundness.
I am a senior at Princeton studying Civil Engineering and Architecture with a focus in structures. My thesis centers around the future renovations of Terrace Club, an eating club at Princeton. A club with over 100 years of history and a home away from home for thousands of former and current Terrace members, the house has seen its share of wear and tear. Starting with the installation of a modern multi-zonal heating system last year, the club has begun planning a major overhaul of the house to take place within the next few years. While this first renovation was a major move towards energy efficiency, there is clear room for improvement. I plan to design energy efficient and sustainable solutions that cater to the needs and values of the club, with multiple options based on large-scale fundraising goals. Renovations already planned include replacing the slate roof, adding an elevator, and extensions and improvements to the servery, dining space, upper terrace, and third-floor living space. Through the course of my research, I will design planned changes in a way that will maximize energy efficiency and sustainability as well as design other environmentally-focused initiatives, including daylighting and occupancy sensors as well as photovoltaic cells and solar hot water systems on the roof. My thesis will address previous old home renovations utilizing green building principles, employ software to assist design choices, and apply these results and conclusions to design a greener, more sustainable clubhouse.
Adriaenssens S.,Liu H., Wahed M., Zhao Q. (2013). ‘Evaluation and Optimization of a Traditional north-light roof on Plant Building energy Consumption‘. In: Energies 2013, 6(4), 1944-1960; doi:10.3390/en6041944
I am a senior in the Structures track of the Architecture and Engineering program at Princeton with a strong focus in the environmental side of things to boot. My thesis will deal with the effects that building artificial barrier islands of the coasts of America’s cities will have on reducing storm surge that occurs during large storms. While many of the largest cities in America are built on the coast (New York, Boston and Miami just to name a few) very few are equipped to deal with large flooding events caused by large storms and hurricanes. Just this past summer, as Hurricane Irene barreled toward the tri-state area, New York was caught completely unprepared for what could have been a major disaster. This thesis will analyze different patterns of barrier island placement to seek solutions to this problem. In particular, this thesis will target a barrier island system in New York Harbor to protect the tip of Lower Manhattan from the effects of storm surge in the event of a hurricane. Relying on what I have learned in the course of my thesis research, and my own contribution, I intend to find a solution that best reduces storm surge in Lower Manhattan.
There is no requirement for where a Jewish person must pray. Communities form in living rooms and kitchens, in workplaces and schools, in tents and in sheds. But most of the time communities form in Synagogues, because Jews intend to always pray in a beautiful place that demonstrates their commitment to God. The synagogue, the place of worship, is the nucleus of Jewish life.
The development of Synagogues in America, both architecturally and religiously, is a meandering, complicated path throughout history. My thesis aims to understand the development- growing from a small group of ten men with no permanent residence to a multi-functional center of Jewish life- by dissecting that history. My research systematically divides the content chronologically, and each time period discussed explains a major shift in the progress of Synagogues. Through this search, one might better understand what the ideal synagogue looks like, because the answer may reside in the past rather than in what is functioning today.
My work, like my major, has two major components- architecture and engineering. I hope to understand how the spaces function for the purposes of the synagogue, and therefore understand how the architecture drives the program. On another level, I will explore the structures of these buildings to further analyze these designs.
Over two decades ago, structural design office Schlaich Bergermann and Partner introduced and applied a structural principle through which full-scale soccer stadiums could be covered using less than 15 kg/m2 (0.5 lb/ft2) of material, having since completed over 30 projects worldwide. These so-called looped cable roof structures obtain their stiffness through the combined action of ‘rim’ and ‘spokes’, becoming highly efficient both above and under ground.
How do these structures work? What approaches can the designer use to maintain flexibility throughout the design process and providing an optimal, architecturally pleasing and structurally expressive result? My work consists of a transition from conceptual hand-calculations to parametric finite element- and geometric modeling tools to develop preliminary design guides based on the case study of a tennis stadium. Structural design is approached from a more scientific perspective, and the interaction between simple engineering intuition and powerful parametric modeling tools looked at in the framework of a real project.
Glisic B., Adriaenssens S., Szerzo P. (2013). ‘Structural Analysis and Physical Validation of a Smart Pantograph Mast Concept’. In: Computer Aided Civil and Infrastructure Engineering. DOI: 10.1111/mice.12013
Siu, S., Rhode-Barbarigos, L., Wagner, S., Adriaenssens, S. (2013). ‘Dynamic relaxation study and experimental verification of dielectric-elastomer minimum-energy structures’. In: Applied Physics Letters (accepted for publication).
Siu S.,Rhode-Barbarigos L., Wagner, S., Adriaenssens S. (2013).’ Analysis of dielectric elastomer minimum energy structures using dynamic relaxation.’ CCTS 2013. Sardinia, Italy.
Combining dielectric elastomers with thin-film solar cells opens the prospect of self-powered, smart civil structures that adapt their shape autonomously in response to external stimuli. To explore the realm of stable equilibrium forms that these Dielectric Elastomer Minimum Energy (DEME) structures can take, we numerically simulated mechanically-coupled assemblies of DEME elements. In these models elastomeric membranes are first pre-stressed across triangular frames with low bending stiffness, and then two to eleven frames are connected along their edges in various configurations. Application of voltage across the membranes’ thickness is simulated by isotropic relaxation, which may be uniform or may differ between the membranes. We find that these configurations can assume a large variety of stable shapes, some of them quite surprising. We use the following approach. First, we use a finite difference method to represent the membrane of each triangular element with a triangular mesh. Second, we employ dynamic relaxation as a numerical analysis process to solve set of nonlinear equations based on Newton’s second law of motion. Briefly, the technique traces the motion of the dielectric membrane stretched over the bendable frame through time when loaded with pre-stress forces. Then we monitor the system until all out-of-balance forces have disappeared and the structure has reached a steady state. For some DEME structures we find more than one final shape. We validate our numerical results with physical model results and find that our simulated structures are in close agreement with those published. This projec is co-supervised by Prof. S. Wagner, Department of Electrical Engineering and Prof. C. Peters, Department of Civil and Environmental Engineering.
Wagner S., Adriaenssens S., Huang T.Y., Jafferis N.T., Stone H.A., and Sturm J.C.(2012).‘Stretchable Electronics – From Passive 2D to Active 3D’. The 2012 International Conference On Flexible and Printed Electronics, Tokyo, Japan.
Huang T., Krupka M., Bagrianski S., , Wagner S. , Peters C., Adriaenssens S.(2011). ‘Shaping mechanically coupled assemblies of dielectric elastomer elements’.2011 Materials Research Society Fall Meeting, Boston, USA.
My name is Gregor Horstmeyer and I am senior in the Department of Civil and Environmental Engineering at Princeton University. My focus is on Structures, while pursuing certificates in both Environmental Studies and the Program in Sustainable Energy. My senior thesis explores the structural and constructional feasibility of a glass umbrella. Inspiration for my project came from Felix Candela’s hyperbolic surfaces along with glass’s fascinating material properties. Having spent seven years working with glass as medium in art has stimulated me to incorporate glass into my study of structures. I hope to show through the construction of a scale model, strength and safety testing, and numerical modeling that utilizing the compressive strength of glass in an efficient design can help create an elegant and unique structural element.
The thesis quintessentially Princeton:
My senior thesis focuses on using a life cycle assessment to estimate and quantify the carbon emissions from the construction of the Streicker Bridge. This is done by using the economic input output life cycle assessment model (EIO-LCA) developed at Carnegie Mellon University. This model uses a table developed by the U.S. Department of Commerce that shows input and output relationships between the 500 sectors of the U.S economy to determine the life cycle output due to an increase in input from a given economic sector. This particular method is ideal for my thesis because it can give outputs in terms of tons of carbon emissions rather than a dollar amount. Then using the University’s price of $30/ton of CO2, the carbon emissions can be added to the total construction costs. Also, since the EIO-LCA model has data for Spain and Germany, I can compare the carbon emissions from hypothetical construction of the Streicker Bridge in those countries and the actual construction costs and cost of carbon emissions. This comparison will provide insight into which construction trades are the most carbon intensive and possibly identify ways carbon emissions can be reduced.
Clark L., Adriaenssens S. (2010).‘Construction cost and environmental impact of a landmark pedestrian bridge’. Proceedings 2010 ISSST International Symposium on Sustainable Systems and Technology, Washington DC, USA.
I am an undergraduate BSE candidate majoring in Civil and Environmental Engineering with a focus on Structures. For my Senior Project, I am designing a steel/glass shell roof to cover the courtyard of Princeton’s Jadwin Physics Building, investigating how an integrated design workflow can lead to a more creative, elegant and efficient design. The design methodology that I am developing utilizes parametric architectural modeling software, a dynamic relaxation form finding program, and optimization algorithms to efficiently explore the economy and aesthetics of various design options. This method of choosing the final form from a number of instances has been used by architects since the 1980’s, yet due to the fragmented nature of the building design industry, structural engineers have been slow to the realize the potential of this design paradigm. I hope to use my ideas and findings resulting from this project at a structural engineering consultancy firm upon completion of my studies and promote closer collaboration between the architect and engineer.
2nd Award 2010 SEI Student Structural Design Competition
Adriaenssens S., Sitler B.(2010). ‘Structural digital design to construction workflow for a glass/steel grid shell’. IASS 2010, Shanghai, China.