cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17603/ds2-2v3s-fm56
title: Fiber element models of 1-D interlocking TeSA wall
title: in Simulation Models and Fragility Functions for Tessellated Structural-Architectural Reinforced Concrete Walls

description: This project introduced a new modular reinforced concrete shear wall system designed for replaceability and resilience after extreme loading as well as architectural appeal. The walls are called tessellated structural-architectural (TeSA) walls because they consist of interlocking tiles (modules) with repetitive shapes (tessellations) and are intended to satisfy both structural and architectural demands. Tiles of TeSA systems can be interlocking in one or two directions, and can incorporate self-centering post-tensioning. This data set includes: 
(1) Continuum element models of 1-D and 2-D interlocking reinforced concrete TeSA walls. The models were created using a commercial finite element software (Abaqus). Walls with 1-D interlocking tiles had self-centering strands. Load-displacement and strand force-displacement (when applicable) data are presented for static pushover analyses. Wall design details are provided for the walls analyzed. 
(2) Fiber element model of a 1-D interlocking TeSA wall with self-centering strands. The model was created using OpenSees. Load-displacement and strand force-displacement data are presented for static pushover analyses. Wall design details are also provided. 
(3) Fragility functions for two 1-D interlocking TeSA walls with varying tile patterns. The functions were created using the fiber element models described above, captured uncertainties in applied axial loading, tile-interface properties, concrete compressive strength, modeling approach, and used lateral drift as the demand parameter. Design details of the walls, for which fragility functions were generated, are also provided.
description: 1-D interlocking Tessellated Structural-Architectural (TeSA) shear wall was modeled. Each tile is modeled using fiber elements. Interaction between tiles is captured using spring elements.The models were created in OpenSees. The tiles of TeSA walls were made of reinforced concrete and the wall was subjected to static and monotonically increasing lateral loading on top. The data set includes input files, example output files, and the details of the TeSA walls for which the models were created.
DOI: 10.17603/ds2-5qn4-gz26
title: Research Experiences for Undergraduates (REU), NHERI 2022: Wind Speed Standardization for Project Sentinel

description: Wind speed measurements are resolved by a 3-axis gill anemometer array under chaotic vibrating conditions using time-resolved tiltmeter measurements. Project Sentinel targets the acquisition of in-situ wind speed measurements from directly coastal (i.e. beach) positions during hurricane landfall. Field researchers may reuse these methods to develop more portable weather stations capable of withstanding storm surge and flooding, such that wind measurements with marine exposure may more effectively be taken during tropical cyclone landfall events.
DOI: 10.17603/ds2-7csa-ax62
title: SUMMEER Workshop – Understanding Data Needs for Sustainable Post-Disaster Material Management

description: SUMMEER organized its first interdisciplinary workshop, bringing together academic researchers and practitioners from both public and private sectors with the aim of identifying and prioritizing the data needs for sustainable post-disaster material management. Organized by SUMMEER’s cross institutional leadership, the two-day workshop took place in Tallahassee Florida, on the 13th and 14th of January 2022. The workshop was delivered in a hybrid mode, so participants could join either in-person or remotely, to facilitate attendance amid COVID-19 concerns. Overall, the workshop introduced SUMMEER to the interdisciplinary sustainable material research community and enabled the identification and prioritization of the post-disaster data needs to facilitate the sustainable management of disaster debris and wastes. This project encompasses a workshop report summarizing the findings from SUMMEER's first workshop.
DOI: 10.17603/ds2-9xvm-6667
title: Texas and Louisiana March 2022 Tornado  Outbreak Event Briefing
title: in StEER - 21-22 March 2022 Tornado Outbreak

description: This event briefing is intended to: 1) summarize the tornado outbreak and its overall  impacts, 2) highlight performance of and use of community shelters in the Jacksboro, TX tornado, 3) explore the potential link between the performance of structures in the Arabi, LA tornado and past hazard impacts, and 4) identify potential opportunities for follow-up hypothesis-driven research.
description: This project encompasses only an Event Briefing, an abbreviated StEER response mechanism that shares StEER’s impressions of the event and implications for natural hazard research and practice. Information provided herein was gathered from various websites, news channels, and National Weather Service. Therefore, this briefing does not include insights from detailed field investigations.
DOI: 10.17603/ds2-m6zy-bv55
title: Geotechnical Reconnaissance of the 2022 Southern Montana/ Yellowstone Floods
title: in GEER Southern Montana/Yellowstone Flood Reconnaissance 2022

description: In June 2022, the southern part of Montana and the northern part of Yellowstone National Park experienced flooding along multiple watersheds, including the Yellowstone River. The flooding resulted from heavy snowmelt between June 10-13th, leading to record levels of river water elevation in most of the main tributaries to the Yellowstone River. Substantial damage occurred to residential, commercial, and transport infrastructure, however, no fatalities were reported. Estimated damages accumulate to approximately U.S. $29 million. The GEER reconnaissance effort, conducted between June 30th – July 4th, recorded geotechnical, geo-structural, and geomorphological observations of failures as well as successful mitigation of flood damage. In addition to traditional terrestrial photography and aerial imagery, the team collected (Light Detection Ranging (LIDAR) scanning, Structure for Motion (SfM) imagery, and Multispectral Imagery to establish point cloud models for case history analyses and post-reconnaissance failure analyses.
DOI: 10.17603/ds2-wftt-mv37
title: CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset (Version 1)

description: This dataset contains 275 CPT-based liquefaction case histories from 21 globally distributed earthquakes. These data, or subsets of these data, have been analyzed in the literature and are provided here to replicate published results.These cases are sourced from existing studies, to include observations of manifestation severity, CPT soundings, and estimation of GWT depth and ground-motion IMs, as generally reported by original investigators. When available, recent refinements were adopted from the literature. The compiled, post-processed data is presented in a structure array (a single file), allowing researchers to easily access and analyze information pertinent to free-field liquefaction response (i.e., triggering and surface manifestation). Research opportunities using this data include, but are not limited to, the training or testing of new and existing liquefaction-prediction models. Information describing the contents and structure of the case-history data are provided in a ReadME document.
DOI: 10.17603/ds2-zv25-jt06
title: 2012 - 2017 Rockfall Inventory and Failure Characteristics
title: in Lidar-derived Rockfall Inventory - An Analysis of the Geomorphic Evolution of Rock Slopes and Modifying the Rockfall Activity Index (RAI)

description: Terrestrial laser scanning (TLS) surveys were collected at four sites for four or five years of collection (2012, 2013, 2014, 2015 and 2017). The archived data includes a rockfall inventory derived from these laser scans, along with other information about the scans and the failure characteristics.
description: Rockfall presents a significant risk to the safety and economy of communities and infrastructure in mountainous regions. To assess the hazards associated with rockfall, Dunham et al. [1] developed the Rockfall Activity Index (RAI), which utilizes high-resolution terrestrial lidar-derived digital elevation models (DEMs) of rock slopes to categorize a slope face into seven distinct morphological units, or "RAI classes." This paper focuses on a comprehensive study conducted at four sites in Alaska, USA, where a robust lidar-based 5-year inventory of 4,381 rockfall events was analyzed. The primary objective was to investigate variations in failure characteristics, such as cumulative magnitude-frequency distributions, non-cumulative power-law parameters, average annual failure rates, and average failure depths, among the different RAI classes. The findings demonstrate that the seven RAI classes effectively differentiate the rock slope based on unique mass-wasting char-acteristics. Furthermore, the research explores spatial variations and temporal variations in these failure characteristics. Based on the study's outcomes, recommendations are provided for modifying the RAI parameters of each RAI class, specifically the annual failure rate and average failure depth. These modifications aim to enhance the accuracy and effectiveness of rockfall hazard assessments.
DOI: 10.17603/ds2-0wgp-2970
title: Data for Multi-Directional Cyclic Lateral-Load Testing of Repaired Self-Centering Cross-Laminated Timber Shear-Wall Diaphragm Sub-Assembly
title: in Multi-Directional Cyclic Lateral-Load Testing of Self-Centering Cross-Laminated Timber Wall-Floor Diaphragm Sub-Assemblies

description: Driven by demand for sustainable buildings and a reduction in construction time, mass timber buildings, specifically cross-laminated timber (CLT), is being more widely used in mid-rise buildings in the US. Low damage post-tensioned self-centering (SC) CLT shear walls (SC-CLT walls) provide an opportunity to develop seismically resilient CLT buildings. Previous research focused primarily on the lateral-load response under unidirectional loading of isolated self-centering timber walls, without considering the interaction with the adjacent building structural components, i.e., the floor diaphragms, collector beams, and gravity load system. Buildings response under seismic loading is multidirectional and there are concerns that multidirectional loading may be more damaging to SC-CLT wall panels and the adjacent building structural components than unidirectional loading, which affects the potential seismic resilience of buildings with SC-CLT walls. A series of lateral-load tests of a 0.625-scale timber sub-assembly was conducted at the NHERI Lehigh Large-Scale Multi-Directional Hybrid Simulation Experimental Facility to investigate the the lateral-load response and damage of SC-CLT walls and the capability of the adjacent building structural components i.e., the floor diaphragms, collector beams, and gravity load system to accommodate the building response and the controlled-rocking of the SC-CLT walls under multidirectional lateral loading.
description: The data presented is processed from an experimental study on the multidirectional cyclic lateral-load response of post-tensioned self-centering (SC) cross-laminated timber (CLT) shear walls with a 0.625-scale test sub-assembly. The test sub-assembly consists of an SC-CLT wall, a CLT floor diaphragm, glulam collector beams, and a glulam gravity load system. The experimental results of three alternative SC-CLT wall specimens, which are SC-CLT wall with unreinforced CLT wall panels (CLT specimen), repaired SC-CLT wall with steel-plate reinforcement (R-CLT specimen), and repaired SC-CLT wall with steel-plate reinforcement and steel bearing plates on the foundation (R-CLT-BP specimen), are presented to demonstrate the effectiveness of these repair methods.
DOI: 10.17603/ds2-5hq0-gm50
title: Structural Axial Compression Tests
title: in Development of an Innovative Ultra High Performance Concrete Foundation System with Bio-inspired Surfaces to Support Renewable Offshore Wind Turbines

description: The planned offshore wind energy (OWE) production in the U.S. has been growing rapidly with targets of 30 GW by 2030 and 110 GW by 2050 and strong support from coastal states. Achieving these targets requires cost-effective and innovative components including foundations, which could cost 14% to 34% of the overall project cost. Offshore wind turbines (OWTs) are commonly supported on large-diameter steel foundations (piles, anchors or suction caissons). Currently the U.S. does not have the capability to fabricate large diameter steel foundations supporting OWTs and instead relies on foundations fabricated abroad. Therefore, a U.S. manufactured foundation system to support renewable OWE infrastructure is required to meet the growing demand. The goal of this project was to develop a domestically fabricated, bio-inspired surface optimized Ultra High-Performance Concrete (UHPC) foundation system to support the growing renewable OWE infrastructure. This project represented the first phase which was focused on material properties, structural capacity of designed UHPC cross-sections, and the effects of surface elements on the soil-pile interaction when subjected to axial loading. The soil-pile interaction was investigated using plates with different designs of surface elements, small-scale piles and larger-scale pile tests subjected to axial loading.
description: Structural Axial Compression Tests were conducted to assess the axial compressive structural capacity of thin-walled UHPC piles. Three piles, each measuring 6 feet in length with an outside diameter of 2 feet, and varying wall thicknesses, were designed, fabricated, and tested without transverse reinforcement.
DOI: 10.17603/ds2-d4n9-kk33
title: Shear strength
title: in Characterization and Geotechnical Properties of Wildfire Ashes

description: This project summarizes the geotechnical engineering properties of eight samples of wildfire ash sampled from three different wildfire sites in central and southern California. This data can be used in conjunction with data collected from others to provide a database of the physical, chemical, hydrological, and engineering properties of wildfire ashes. Extensive engineering testing of wildfire ashes is not readily available in literature, so this work will supplement the supply currently available. This work would be information and educational for those researching wildfire ashes, fire-exposed slopes, carbonate-rich soils, and manmade soils, including other types of ash. This data can be reused by those who would like reference data for further testing on wildfire ashes and for those who require reference data on soil engineering properties.
description: Analysis of the ash friction envelope was done using both a direct shear (ELE 26-2114) and a ring shear device (GDS RSA). The direct shear device was used to measure the shear strength of wildfire ash deposited as a thin layer (1 cm thick) above a compacted layer of commercially available sand (Silver #20, USCS classification SP, particle size range 0.425 – 0.85 mm). The set up was designed such that the shearing plane always manifested at the center of the ash layer (even after compression during loading). A loosely deposited layer of ash (1 cm thick) above a densely compacted sand layer (1 cm thick) simulated a depositional environment just following a wildfire event. Tests were run in both the dry and saturated conditions at normal stresses of 25, 50, 100, and 200 kPa. The ring shear device was used to determine the friction envelope of just the finer-grained portion of the wildfire ash (sieved over the No. 100 sieve) in a drained, saturated condition. Tests were run at a displacement rate of 0.01 mm/min to minimize shear-induced pore water pressures. Tests were run at both very low normal stresses (5-40 kPa) and at moderate normal stresses (50, 100, and 200 kPa) to capture variations in friction angle with normal stress. For both shearing methods, single stage tests were run, and new specimens were prepared for each value of normal stress.
DOI: 10.17603/ds2-0jkm-h487
title: Tropical Cyclone Synthetic Hazard and Damage Simulations
title: in Sensitivity of TC risk to storm climatology change and socioeconomic growth

description: Synthetic tropical cyclone wind, rainfall, and storm surge based on a large event set and physics-based hazard models. Also contains estimated county-level expected annual damages from TC hazards based on the methodology described in the following paper: 
Gori, A., Lin, N., Chavas, D. and Oppenheimer, M., Xian, S. (2025). Sensitivity of tropical cyclone risk across the US to changes in storm climatology and socioeconomic growth. Environmental Research Letters 
description: Dataset for the following paper: 
Gori, A., Lin, N., Chavas, D. and Oppenheimer, M., Xian, S. (2025). Sensitivity of tropical cyclone risk across the US to changes in storm climatology and socioeconomic growth. Environmental Research Letters.
DOI: 10.17603/ds2-bjq5-xv26
title: Microtremor Horizontal-to-Vertical Spectral Ratio (mHVSR) Data Collection at Griffith Park, 2023
title: in Microtremor Measurements Performed Within Southern California

description: Griffith Observatory is situated on the Santa Monica mountains within the Los Angeles area. This area experiences seismic activity due to its proximity to the Hollywood fault and Santa Monica faults within the LAB. In an effort to better understand the geology and also aid in future site response model development, microtremor Horizontal-to-Vertical Spectral Ratio (mHVSR) surveys were performed specifically near vertical arrays. Collaborative research between the University of Southern California (USC) and the University of California, Los Angeles (UCLA) have performed mHVSR surveys at 6 areas within the observatory park area. The HVSR spectra developed using this dataset may be accessed in the United States Community Shear-Wave Velocity (VS) Profile Database (PDB) (https://vspdb.org). This work was supported by the Sonny Astani Department of Civil and Environmental Engineering at the Viterbi School of Engineering, University of Southern California(USC).
description: Microtremor Horizontal-to-Vertical Spectral Ratios (mHVSR) are derived from ratios of the horizontal and vertical components of a Fourier Amplitude Spectra (FAS) from a 3-component recording of microtremors. This is done by recording ground vibrations either from a temporarily-deployed broadband seismometer, typically recording for a relatively short period of time (~1-2 hrs.), or from a permanently-installed broadband seismometer for a longer period of time. mHVSR can be very useful in identifying resonant frequencies where peaks in mHVSR represent resonance from impedance contrasts at a site. Many studies have found that the lowest resonant peak found in mHVSR is associated with the fundamental frequency of site. This study aims to perform mHVSR surveys at various sites in southern California to aid in the development of site response models by utilizing mHVSR to inform them and to also aid in the development of a large publicly accessible database for use in furthering research using mHVSR. This work will aid in a larger project associated with another DesignSafe doi (PRJ-4064). The database has been established and is available in the United States Community Shear-Wave Velocity (VS) Profile Database (PDB) (https://vspdb.org); the work presented in this doi is contributing to this database.
DOI: 10.17603/ds2-c805-h106
title: A Roadmap to Undergraduate Research Opportunities—CONVERGE Extreme Events Research Check Sheets Series

description: This check sheet contains guidelines for undergraduate students who are interested in identifying research opportunities. It is intended to promote involvement with research so that students can learn, gain professional experience, develop new skills, and contribute to their chosen field. About the CONVERGE Extreme Events Research Check Sheets Series: The National Science Foundation-supported CONVERGE facility at the Natural Hazards Center at the University of Colorado Boulder has developed a series of short, graphical check sheets that are meant to be used as researchers design their studies, prepare to enter the field, conduct field research, and exit the field. The series offers best practices for extreme events research and includes check sheets that are free to the research community. More information is available at: https://converge.colorado.edu/resources/check-sheets.
DOI: 10.17603/ds2-ejb9-kt02
title: EERI-SSEER Resilience Reconnaissance Data: 20 Months
title: in EERI-SSEER 2023 Kahramanmaras, Turkiye Earthquake Sequence Reconnaissance

description: Organizational and building recovery from the 2023 Kahramanmaraş, Türkiye Earthquake Sequence
description: This project refers to reconnaissance data collected from the 2023 Kahramanmaras, Turkiye Earthquake Sequence as part of Earthquake Engineering Research Institute Learning From Earthquakes program (EERI LFE) and Social Science Extreme Events Research (SSEER) Network. 

Data in this repository covers the engineering and social sciences. A mission was completed in October 2024 (10 months after the earthquakes) to study the reconstruction (engineering) and organizational recovery (social sciences) from these events.

For the study of reconstruction, photos from the mission are shared with relevant metadata (such as latitude and longitude). For the study of organizational response to recovery, the interview questionnaire and de-identified notes from interviews are also shared. Data can be reused to inform similar research studies and further analysis.

For any questions, please fill out the feedback form to contact the creators.
DOI: 10.17603/ds2-frkc-z033
title: Subsurface Characterization of Golbasi - 2023
title: in Subsurface Characterization of Selected Liquefaction Case Histories - 2023 Kahramanmaras Earthquake Sequence

description: This dataset comprises a subsurface characterization of key liquefaction areas in Golbasi, Türkiye, following the February 6, 2023, Kahramanmaraş earthquake sequence. Field testing was conducted from October 30th to November 10th, 2023.

The dataset includes Cone Penetration Tests (CPT) as well as borehole sampling and incorporates pore pressure dissipation measurements and standard CPT readings. High-quality subsurface investigations, such as this dataset, are a key component of liquefaction case histories. As such, this data is vital for future analyses of liquefaction-induced building settlements, building-ground interactions, and liquefaction-induced ground deformations resulting from the Kahramanmaraş earthquake sequence.
description: This dataset comprises a subsurface characterization of key liquefaction areas in Türkiye following the February 6, 2023, Kahramanmaraş earthquake sequence. Two Field testing campaigns were conducted in 2023 and 2024.

The dataset includes Cone Penetration Tests (CPT) as well as seismic CPTs (SCPT) and incorporates pore pressure dissipation measurements, shear wave velocities, and standard CPT readings. High-quality subsurface investigations, such as this dataset, are a key component of liquefaction case histories. As such, this data is vital for future analyses of liquefaction-induced building settlements, building-ground interactions, and liquefaction-induced ground deformations resulting from the Kahramanmaraş earthquake sequence.