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Articles 1 - 12 of 12
Full-Text Articles in Engineering
Experimental Testing Of A Lightly Reinforced Concrete Shear Wall, Jerry Hue Truong Luong, Rory Sebastian De Sevilla
Experimental Testing Of A Lightly Reinforced Concrete Shear Wall, Jerry Hue Truong Luong, Rory Sebastian De Sevilla
Architectural Engineering: Graduate Reports
This project report summarizes the findings of a half-scale laboratory test on a slender lightly reinforced concrete (LRC) shear wall subjected to cyclic loading. LRC shear walls, specifically those of pre-1980’s type design, have longitudinal and horizontal reinforcement ratios near the code minimum, while often lacking confinement in the wall end-zones. These walls are thought to exhibit brittle compressive failure mechanisms such as rebar buckling or concrete crushing based on observations from past earthquakes. Non-ductile concrete buildings are a large contributor to earthquake losses around the globe, as noted in the San Fernando (1971) and Christchurch (2011) earthquakes, to name …
Tanzanian Concrete Masonry Walls, Edward J. Kaminski
Tanzanian Concrete Masonry Walls, Edward J. Kaminski
Architectural Engineering
Walls that replicate masonry walls used in Tanzania are constructed and tested. The results from testing was compared with the respective predictions made using code guidelines from ASCE 7 and TMS 402.
Implementation Of An Open-Source Digital Image Correlation Software For Structural Testing, Nicole V. Buck
Implementation Of An Open-Source Digital Image Correlation Software For Structural Testing, Nicole V. Buck
Master's Theses
This thesis investigates the appropriateness of a simplified, open-source digital image correlation (DIC) software for use in quasi-static, structural testing utilizing two-dimensional (2D) DIC measurements. DIC is a non-contact optical measurement technique that uses computer vision to track unique attributes on the surface of an object. For structural testing, traditional instrumentation such as displacement sensors and strain gages are impractical for full field measurements due their limited ability to capture large amounts of data. However, over the past decade, DIC has proven a successful method for full-field kinematics measurements, making it an appealing tool for collecting high densities of accurate …
Investigation Of Modeling Strategies For Slender Lightly Reinforced Concrete Shear Walls, Jenna Marie Williams, Tracy Destiny Doan
Investigation Of Modeling Strategies For Slender Lightly Reinforced Concrete Shear Walls, Jenna Marie Williams, Tracy Destiny Doan
Architectural Engineering: Graduate Reports
A large number of pre-1980’s non-ductile reinforced concrete (RC) structures in California utilizing RC shear walls to resist seismic lateral forces have been identified as deficient by industry practitioners. These non-ductile wall systems are typically lightly reinforced and lack adequate boundary element detailing. Analytical studies suggest these walls are susceptible to brittle, compression-controlled failure modes due to damage from concrete crushing and bar buckling. Furthermore, poor behavior of lightly reinforced concrete walls was observed in many recent earthquakes, for example in Chile (1985), New Zealand (2010/2011) and Mexico (2017). This has generated concern among engineers in high seismic regions around …
The Use And Explanation Of The Phase Angle In Forced Vibration Testing, Nicholas R. Slavin, Ryan D. Thornton
The Use And Explanation Of The Phase Angle In Forced Vibration Testing, Nicholas R. Slavin, Ryan D. Thornton
Architectural Engineering
Forced vibration testing is a tool used to characterize a structure’s dynamic properties. When subjecting a structure to a forced harmonic load, the results help define the structure’s fundamental frequencies and dominant mode shapes. However, when conducting testing, it is difficult to determine the contributions of each mode to the response at a given location in the structure. The recorded response from a forced vibration test is a combination of unknown modal constituents. Excitation may not result in the pure, single mode response that the experimenter desires, but may instead result in a combination of modal responses that obscure the …
Wine History Project Pavilion, Douglas Mcarthur
Wine History Project Pavilion, Douglas Mcarthur
Architectural Engineering
The Wine History Pavilion Project is a continuing endeavor of Cal Poly students working on an exhibitive, traveling structure for the San Luis Obispo community. The project started during the 2019 Fall Quarter in the interdisciplinary Integrated Project Delivery (IPD) Studio and has progressed to the detailed design stage for its eventual fabrication and installation. This report discusses the detailed design stage that 4th year Architectural Engineering student, Douglas McArthur, worked on.
Design Of Structural Stand For High-Precision Optics Microscopy, Sara T. Novell
Design Of Structural Stand For High-Precision Optics Microscopy, Sara T. Novell
Master's Theses
Lawrence Livermore National Lab (LLNL) is home to the National Ignition Facility (NIF), the world’s largest and most energetic laser. Each of the 192 beamlines contains dozens of large optics, which require offline damage inspection using large, raster-scanning microscopes. The primary microscope used to measure and characterize the optical damage sites has a precision level of 1 µm. Mounted in a class 100 clean room with a raised tile floor, the microscope is supported by a steel stand that structurally connects the microscope to the concrete ground. Due to ambient vibrations experienced in the system, the microscope is only able …
Folded! High-Rise, Alejandra Bravo, Riley Joseph Denis
Folded! High-Rise, Alejandra Bravo, Riley Joseph Denis
Architectural Engineering
The authors of this report are undergraduate Architectural Engineering students at California Polytechnic State University in San Luis Obispo. This report documents their experience in an interdisciplinary studio of high‐rise building design and the process by which they produced a schematic design of a high‐rise residential building in San Francisco. It will address the organization of the studio, the development of concept as well as form and structure, the studies and structural analyses, as well as the review process and the competitions the final proposals were entered in, and include some final takeaways from each Architectural Engineering group member.
Analysis Of Burning Wood In The Transient State And The Application To Structural Design, Roberta Veliz, Kimberly Guzman
Analysis Of Burning Wood In The Transient State And The Application To Structural Design, Roberta Veliz, Kimberly Guzman
Architectural Engineering
Determining the extent of the contribution of exposed timber on compartment fire dynamics in open floor plans is a complex process. Designers traditionally used compartmentalization design methods which create spaces where flashover is likely, given the fuel load and ventilation conditions. However, due to the large geometric dimensions and spread of fuel, fires in open floor plans are more likely to remain as localized or traveling fires. As such, an understanding of not only ignition potential but also flame spread is critical to characterizing the contribution of exposed timber. An integral step in characterizing the potential contribution is through an …
The Aloe: High Rise Schematic Design And Analysis, Tony Duc Nguyen, Lilliann Lan Lai
The Aloe: High Rise Schematic Design And Analysis, Tony Duc Nguyen, Lilliann Lan Lai
Architectural Engineering
The authors of this document are architectural engineering (ARCE) undergraduate students from California Polytechnic State University, San Luis Obispo (Cal Poly). They joined the 2020 Skyscraper Collaboratory as part of the ARCE course 415: Interdisciplinary Capstone Project. This course emphasizes the analysis and evaluation of interdisciplinary challenges associated with integrating the design and construction processes to deliver a project with respect to the design, quality, and performance expectations for a client or presented criteria. The course was taught in collaboration with industry partners and associates from the global architectural, urban planning, and engineering firm Skidmore, Owings & Merrill (SOM). Instruction …
Piazza Di Ulivo: Arce Patio Redesign, Sophia Kim-Oanh Ha, David Colman
Piazza Di Ulivo: Arce Patio Redesign, Sophia Kim-Oanh Ha, David Colman
Architectural Engineering
Piazza de Ulivo was Phase 1 of a multi-quarter initiative to redesign and bring life to a patio space adjacent to Engineering West (Building 21) in Spring of 2020. Located within the central courtyard of Engineering West (Hasslein Garden), the patio space previously contained a senior project pergola that collapsed and has been removed. The remaining elements from this previous structure were an inverted moment frame consisting of five concrete columns and beams joining them. Additionally, a wooden bench with concrete pedestals remained under the shade of the existing olive tree. Desire within the Architectural Engineering (ARCE) department for the …
A Comparative Study On Seismic Analysis Methods And The Response Of Systems With Classical And Nonclassical Damping, Noah G. Bleichner
A Comparative Study On Seismic Analysis Methods And The Response Of Systems With Classical And Nonclassical Damping, Noah G. Bleichner
Master's Theses
This thesis investigated the application of seismic analysis methods and the response of idealized shear frames subjected to seismic loading. To complete this research, a Design Basis Earthquake (DBE) for a project site in San Luis Obispo, CA, and five past earthquake records were considered. The DBE was produced per the American Society of Civil Engineers’ Minimum Design Loads for Buildings and Other Structures (ASCE 7-10) and used for application of the Equivalent Lateral Force Procedure (ELFP) and Response Spectrum Analysis (RSA). When applying RSA, the modal peak responses were combined using the Absolute Sum (ABS), Square-Root-of-the-Sum-of-Squares (SRSS), and Complete …