IRES: U.S.-Turkey Research Collaboration in Conservation Engineering

美国国家科学基金会提案摘要提案：1559540 PI名称：Erdogmus， Ece提案标题：美国-土耳其保护工程研究合作机构：内布拉斯加大学林肯分校（奥马哈校区）摘要日期：03/24/16历史/现有结构的修复是一个成熟的研究领域。随着美国老化建筑数量的增加，未来几年对劳动力发展的需求越来越大，以解决历史保护的潜力。该项目的目标是培养一批在历史保护项目的工程方面受过专门培训和具有全球意识的专家骨干。为了满足这一需求，内布拉斯加大学林肯分校的Erdogmus博士将与土耳其伊兹密尔理工学院（IZTECH）合作。这个为期3年的项目将带一组9名美国学生到土耳其进行为期7周的历史保护工程暑期研究。PI计划每年从代表性不足的群体中招募至少50%的学员。IZTECH的土耳其导师是Mine Turan博士和Engin Aktas博士，分别代表建筑修复和土木工程系。在东道主和PI经验丰富的领导下，参与该项目的美国学生将获得有意义和全面的研究经验，包括在IZTECH校园的实验室工作和涉及历史遗址的各种实地应用。这个为期三年的美国-土耳其IRES项目将让美国研究生和本科生参与结构工程和保护界面的研究项目，重点关注三个主题：1)工程-保护协调，在干预之前评估历史结构和材料；2)工程-保护协调，开发兼容的材料进行历史改造；3)干预后评估和风险分析，对结构的倒塌安全。在每个重点主题下，IRES学生将进行具体的项目和任务；即，学生将：a)开发一种新方法，在复杂地点提供封闭反馈回路，其中涉及基于无损评估（NDE）的评级系统，将每个元素的视觉评估与其内部损坏水平相关联。这将告知不同的本构模型，并有助于保护干预的设计。b)研究来自不同地点的现代水泥的化学和机械性能，以评估它们在极端高温、盐水和冻融循环下的行为，并与不同的历史石头配对。c)使用概率评估和敏感性分析开发历史结构的决策算法，以识别安全问题，并预测给定结构保持安全的设计事件复发间隔。然后，该算法将支持支持或反对干预的决策，确保仅对历史遗址进行最小程度的侵入性干预。本研究由美国国家科学基金会国际科学与工程办公室（OISE）的IRES项目资助。

NATIONAL SCIENCE FOUNDATIONProposal AbstractProposal: 1559540 PI Name: Erdogmus, Ece Proposal Title: U.S.-Turkey Research Collaboration in Conservation EngineeringInstitution: University of Nebraska-Lincoln (Omaha Campus)Abstract Date: 03/24/16Rehabilitation of historical/existing structures is an area ripe for research. With an increasing number of aging structures in the United States, there is a growing need for workforce development to address the potential for historic preservation in coming years. The goal of this project is to develop a cadre of experts with specialized training and global awareness in the engineering aspects of historical preservation projects. To address this need, Dr. Erdogmus from the University of Nebraska-Lincoln will collaborate with the Izmir Institute of Technology (IZTECH) of Turkey. This 3-year program will bring a group of nine US students to Turkey for a seven-week summer research in historic preservation engineering. It is the intention of the PI to recruit at least 50% of the cohort each year from underrepresented groups. The Turkish mentors from IZTECH are Dr. Mine Turan and Dr. Engin Aktas, representing the Architectural Restoration and Civil Engineering Departments, respectively. Under the experienced leadership of the hosts and the PI, the US students participating in the program will be provided with meaningful and comprehensive research experiences comprised of lab-work at IZTECH campus and a variety of field-applications that involve historical sites. This three year U.S.-Turkey IRES program will involve American graduate and undergraduate students in research projects at the interface of structural engineering and conservation with three focus themes: 1) Engineering- conservation coordination for assessment of historical structures and materials prior to an intervention, 2) Engineering- conservation coordination for the development of compatible materials for historical retrofits, and 3) Post-Intervention assessment and risk analysis for the collapse-safety of structures. Under each of these focus themes, the IRES students will conduct specific projects and tasks; namely, the students will: a) Develop a novel method to provide a closed feedback loop on complex sites, which involves a nondestructive evaluation (NDE) based rating system for each element correlating the visual assessments to its interior damage levels. This will then inform variant constitutive models and aid in the design for the conservation intervention. b) Investigate chemical and mechanical properties of modern cements from different locations in order to evaluate their behavior under extreme heat, salt water, and freeze-thaw cycles when paired with different historical stones. c) Develop a decision making algorithm for historical structures using probabilistic assessments and sensitivity analyses to identify safety concerns and to predict design event recurrence intervals for which a given structure remains safe. This algorithm will then support decisions for or against intervention, ensuring only a minimum level of invasive intervention applied to the historic site. This work is funded by the IRES program of NSF Office of International Science and Engineering (OISE).