Comparative Performance Analysis of Excitus AS Portable Suction Device Prototype
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PI Name: Robert Lyle Hood
Sponsor: Excitus
Total Funding: $68947
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1. SCOPE. This research project processes experimental testing and characterization of suction devices for Excitus AS by Dr. R. Lyle Hood of the Mechanical Engineering Department at the University of Texas at San Antonio (UTSA) and Robert De Lorenzo of the Emergency Medicine Department at the University of Texas Health Science Center in San Antonio. The proposed costs are outlined in the Budget and Project Summary section entitled " BUDGET JUSTIFICATION FOR PHASES 1 & 2. "
2. REQUIREMENTS
2.1 Service: UTSA is responsible for providing characterization of the Excitus AS suction device prototype and comparative performance against substantially equivalent devices already approved by the United States Food and Drug Administration. This includes (1) Air and liquid evacuation flowrate testing with calibrated equipment for the Excitus AS prototype and substantially equivalent units. This will be conducted in laboratory benchtop setups and from within human manikin models designed to simulate patient airways. (2) Summary report of findings for internal use, and a quality abstract for public dissemination.
2.2 Deliverables. The summary report will include experimental descriptions, all results and findings, and expert opinions from Dr. Hood and Dr. De Lorenzo on the adherence of the Excitus AS prototype to current standards and analysis of the device's substantial equivalency with regards to United States regulatory agencies.
3. PERIOD OF PERFORMANCE.
The official period of performance for this work will be February 1st, 2020 through July 31st, 2020. The report will be delivered no later than August 31th, 2020.
Evaluating Bridge Behavior Using Ultra-High Resolution Digital Imaging
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PI Name: Wassim M Ghannoum
Sponsor: TX Dept of Transportation 601
Total Funding: $83176.25
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The goal of this project is to provide support and additional training to TxDOT personnel in using the DIC system developed in Project 0-6950. The system consists of two cameras, computer hardware, and a software that enables monitoring deflections down to 1/1,000th inch resolution during bridge and culvert load testing.
SPUR COSA EPICS Research Fellows
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PI Name: Adolfo Matamoros
Co-PD/PI: Arturo H Montoya Rodriguez, David Akopian, Erica T Sosa and Robert Bruce Tillyer
Sponsor: City of San Antonio
Total Funding: $24500
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Problem Statement: Research is important to our community since it builds our knowledge, facilitates efficient learning, and allows us to understand societal issues on a deeper level. Unfortunately, there is often a disconnect between practitioners (COSA staff, non-profits) working to address community challenges and local academia who are studying the same challenges. Both practitioners and academics have expressed the need for a centralized " front-door " that facilitates collaboration and knowledge sharing, leading to better research and development (R&D) of innovative solutions to community challenges. Both groups also need better access to real-world experiences and insights from residents.
Hypothesis: A centralized, R&D On-Demand (site will 1) provide City staff connection with researchers who have data and/or expertise that provide a deeper understanding of community challenges and can help design innovative solutions to solve them; 2) provide researchers connection to administrative data, strategic plans, and practical insights that build stronger solutions, grant proposals, and advance applied research efforts.
Objective: UTSA researchers and graduate fellows will assist City of San Antonio R&D League's mission to create cross-sector, multi-disciplinary teams that utilize scientific methods and data to investigate new ideas, facilitate evidence-based policymaking, and explore the frontier of innovation for our 1.5 million residents. UTSA researchers and graduate fellows will assist the COSA R&D to create the R&D On-Demand proof-of-concept that will allow COSA departments in the City of San Antonio to put out requests for research and match city staff and researchers to solve community challenges together. The site is, on-demand aims to facilitate fast responses to crisis. Over time, we hope the platform will facilitate long-range research and development as well.
Tasks:
* Develop a research-survey plan to collect additional data
* Use previously learned user centered design and requirements to build R&D OnDemand proof-of-concept prototype website.
* Mentor UTSA EPICS undergraduates in assigned subtask design and implementation
Approach:
*Proof-of-Concept Prototype/Technology: Create On-Demand site, implementing previously learned user requirements and functionalities.
* Experiment/Application: Deploy QA to test the site for bugs, onboard a small group of researchers and city staff members onto site.
*Report: Document bugs, barriers, and improvements to add that users want on the site .
Hypothesis: A centralized, R&D On-Demand (site will 1) provide City staff connection with researchers who have data and/or expertise that provide a deeper understanding of community challenges and can help design innovative solutions to solve them; 2) provide researchers connection to administrative data, strategic plans, and practical insights that build stronger solutions, grant proposals, and advance applied research efforts.
Objective: UTSA researchers and graduate fellows will assist City of San Antonio R&D League's mission to create cross-sector, multi-disciplinary teams that utilize scientific methods and data to investigate new ideas, facilitate evidence-based policymaking, and explore the frontier of innovation for our 1.5 million residents. UTSA researchers and graduate fellows will assist the COSA R&D to create the R&D On-Demand proof-of-concept that will allow COSA departments in the City of San Antonio to put out requests for research and match city staff and researchers to solve community challenges together. The site is, on-demand aims to facilitate fast responses to crisis. Over time, we hope the platform will facilitate long-range research and development as well.
Tasks:
* Develop a research-survey plan to collect additional data
* Use previously learned user centered design and requirements to build R&D OnDemand proof-of-concept prototype website.
* Mentor UTSA EPICS undergraduates in assigned subtask design and implementation
Approach:
*Proof-of-Concept Prototype/Technology: Create On-Demand site, implementing previously learned user requirements and functionalities.
* Experiment/Application: Deploy QA to test the site for bugs, onboard a small group of researchers and city staff members onto site.
*Report: Document bugs, barriers, and improvements to add that users want on the site .
haracterization of the Physical Properties of Niobium-Based Reinforcing Bars and their Performance in Concrete Structures
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PI Name: Wassim M Ghannoum
Sponsor: CBMM Technology Suisse SA
Total Funding: $29827
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Phase 1 Extension 2: During this one semester extension, the UTSA team will continue testing reinforcing bars as supplied by CBMM in the same manner as has been conducted in Phase 1. The UTSA team will also complete analyses of test data produced by UTSA and CBMM.
With this extension, the final report that was due August 31, 2021, will be delivered instead May 30th 2022 at the end of this extension. The UTSA team will also continue to provide regular updates on test results and data analyses as needed, or requested by CBMM.
With this extension, the final report that was due August 31, 2021, will be delivered instead May 30th 2022 at the end of this extension. The UTSA team will also continue to provide regular updates on test results and data analyses as needed, or requested by CBMM.
FFRP Strengthening of Concrete Shear Walls
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PI Name: Wassim M Ghannoum
Sponsor: Simpson Strong-Tie
Total Funding: $375286
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Concrete walls with non-seismic detailing are at risk of severe damage that can lead to structural instability during earthquakes. Carbon fiber reinforced polymers (CFRP) can be used effectively to strengthen such walls. Design and application details however need to be worked out for engineers to use the materials effectively.
Supplement for NHERI award from Purdue University
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PI Name: JoAnn Browning
Co-PD/PI Name: Karina Ivette Vielma
Sponsor: Purdue Univ
Total Funding: $45564
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UTSA requests a budget supplement to continue work between the end of the first 5-year award (NHERI NCO through Purdue University) and beginning of the second 4-year award. Dr. Robin Nelson will coordinate all the REU meetings and activities. Dr. Karina Vielma is training Dr. Nelson to provide leadership mentorship to REU students and guide REU research mentors. Ms. LaChance provides all necessary communications needs for an REU program that is mostly virtual as well as reporting outcomes through NEHRI announcements.
Design Requirements for Mechanically Spliced High-Strength Reinforcing Bars in Hinge Regions
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PI Name: Wassim M Ghannoum
Sponsor: Charles Pankow Foundation
Total Funding: $330480
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In ACI 318-19 [1], a restriction was applied to mechanical splices for Gr80 and 100 bars in hinge regions due to performance concerns. This restriction puts Gr80 and 100 bars at a constructability disadvantage compared with Gr60 bars, while also curtailing constructability of concrete systems in seismic regions.
The main objectives for the proposed research are as follows:
1- Develop design criteria for mechanical splices in hinge regions that would result in adequate performance for Gr80 and 100 bars.
2- Redefine performance criteria for mechanical splices to allow their use in hinge regions.
Project objectives will be achieved through three complementary tasks:
1- TASK 1: characterize the behavior of leading mechanical splices used currently in hinge regions of concrete members. This task involves in-air cyclic and monotonic tests on spliced bars using various splice devices and bar grades.
2- TASK 2: Test concrete shear walls with mechanical splices in the hinge regions to arrive at acceptable splice details. Gr80 and possibly Gr100 bars will be used in the tests. Mechanical splices covering the available range of splice lengths and rigidities will be used. Confinement detailing around the splices will be varied.
3- TASK 3: Define mechanical splice performance criteria and detailing requirement for ACI that remove restrictions on constructability enhancing mechanical splices.
The main objectives for the proposed research are as follows:
1- Develop design criteria for mechanical splices in hinge regions that would result in adequate performance for Gr80 and 100 bars.
2- Redefine performance criteria for mechanical splices to allow their use in hinge regions.
Project objectives will be achieved through three complementary tasks:
1- TASK 1: characterize the behavior of leading mechanical splices used currently in hinge regions of concrete members. This task involves in-air cyclic and monotonic tests on spliced bars using various splice devices and bar grades.
2- TASK 2: Test concrete shear walls with mechanical splices in the hinge regions to arrive at acceptable splice details. Gr80 and possibly Gr100 bars will be used in the tests. Mechanical splices covering the available range of splice lengths and rigidities will be used. Confinement detailing around the splices will be varied.
3- TASK 3: Define mechanical splice performance criteria and detailing requirement for ACI that remove restrictions on constructability enhancing mechanical splices.
Evaluate Use of 300 ksi Strands for TxDOT Prestressed Girders
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PI Name: Adolfo Matamoros
Sponsor: TX Dept of Transportation 601
Total Funding: $849245
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In ACI 318-19, a restriction was applied to mechanical splices for Gr80 and 100 bars in hinge regions due to performance concerns. This restriction puts Gr80 and 100 bars at a constructability disadvantage compared with Gr60 bars, while also curtailing constructability of concrete systems in seismic regions.
The main objectives for the proposed research are as follows:
1- Develop design criteria for mechanical splices in hinge regions that would result in adequate performance for Gr80 and 100 bars.
2- Redefine performance criteria for mechanical splices to allow their use in hinge regions.
Project objectives will be achieved through three complementary tasks:
1- TASK 1: characterize the behavior of leading mechanical splices used currently in hinge regions of concrete members. This task involves in-air cyclic and monotonic tests on spliced bars using various splice devices and bar grades.
2- TASK 2: Test concrete shear walls with mechanical splices in the hinge regions to arrive at acceptable splice details. Gr80 and possibly Gr100 bars will be used in the tests. Mechanical splices covering the available range of splice lengths and rigidities will be used. Confinement detailing around the splices will be varied.
3- TASK 3: Define mechanical splice performance criteria and detailing requirement for ACI that remove restrictions on constructability enhancing mechanical splices.
The main objectives for the proposed research are as follows:
1- Develop design criteria for mechanical splices in hinge regions that would result in adequate performance for Gr80 and 100 bars.
2- Redefine performance criteria for mechanical splices to allow their use in hinge regions.
Project objectives will be achieved through three complementary tasks:
1- TASK 1: characterize the behavior of leading mechanical splices used currently in hinge regions of concrete members. This task involves in-air cyclic and monotonic tests on spliced bars using various splice devices and bar grades.
2- TASK 2: Test concrete shear walls with mechanical splices in the hinge regions to arrive at acceptable splice details. Gr80 and possibly Gr100 bars will be used in the tests. Mechanical splices covering the available range of splice lengths and rigidities will be used. Confinement detailing around the splices will be varied.
3- TASK 3: Define mechanical splice performance criteria and detailing requirement for ACI that remove restrictions on constructability enhancing mechanical splices.
Natural Hazards Engineering Research Infrastructure Network Coordination Office 2021- 2025
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PI Name: JoAnn Browning
Co-PD/PI Name: Karina Ivette Vielma
Sponsor: Purdue Univ
Total Funding: $1341400
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This proposal is part of the Purdue renewal.
Develop\Refine Design Provisions for Headed and Hooked Reinforcement
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PI Name: Adolfo Matamoros
Sponsor: TX Dept of Transportation 601
Total Funding: $319213.75
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Recent changes to American Concrete Institute ACI 318-19 have increased the length of hooked
reinforcement relative to AASHTO LRFD Specifications, by as much as 50 to 70 percent. The
AASHTO LRFD Specifications also lack codified guidance for headed reinforcing. With the
increased application of strut-and-tie models for reinforced concrete design and need for proper
anchorage of tension reinforcement, accurate design provisions for bar anchorage are needed.
The expected benefits are an accurate representation of structural concrete behavior that
accounts for differences in various code guidance and ensures these are applied to TxDOT bridge
structures.
reinforcement relative to AASHTO LRFD Specifications, by as much as 50 to 70 percent. The
AASHTO LRFD Specifications also lack codified guidance for headed reinforcing. With the
increased application of strut-and-tie models for reinforced concrete design and need for proper
anchorage of tension reinforcement, accurate design provisions for bar anchorage are needed.
The expected benefits are an accurate representation of structural concrete behavior that
accounts for differences in various code guidance and ensures these are applied to TxDOT bridge
structures.
