초록 ▼

본 연구는 지진으로부터 발생하는 구조물의 피해를 최대한 줄이고 손상으로부터 치유하는데 요구되는 유지·보수비용을 최소화하는 새로운 댐퍼 시스템 장치에 대한 원천 기술을 개발하고 해석과 실험을 통한 구조적 성능 검증으로 세계적 수준의 관련 기술 보유성과를 창출하고자함. 건설 분야에서 새로운 기초·원천 기술을 국내에 도입하고 발전시키고자함. 연구에서 개발된 스마트 댐퍼 시스템은 별도 열처리를 가하지 않아도 원형 복원되어 소성변형이 심한 구조물 일부에 영구적인 설치 및 활용이 가능함. 본 연구에서 사용되는 초탄성 형상기억합금은 댐퍼 시스템

본 연구는 지진으로부터 발생하는 구조물의 피해를 최대한 줄이고 손상으로부터 치유하는데 요구되는 유지·보수비용을 최소화하는 새로운 댐퍼 시스템 장치에 대한 원천 기술을 개발하고 해석과 실험을 통한 구조적 성능 검증으로 세계적 수준의 관련 기술 보유성과를 창출하고자함. 건설 분야에서 새로운 기초·원천 기술을 국내에 도입하고 발전시키고자함. 연구에서 개발된 스마트 댐퍼 시스템은 별도 열처리를 가하지 않아도 원형 복원되어 소성변형이 심한 구조물 일부에 영구적인 설치 및 활용이 가능함. 본 연구에서 사용되는 초탄성 형상기억합금은 댐퍼 시스템에 뛰어난 복원력과 에너지 소산 효과를 동시에 제공함. 개발된 댐퍼 시스템은 국내 도입에 선도적인 역할을 할 것으로 기대되며 선진국과의 기술 격차를 감소하는데 크게 이바지할 것으로 판단됨. 중소기업과 공동으로 수행하여 얻어진 연구 성과물은 제품생산과 기술이전이라는 실용적인 단계를 거쳐 최종적으로 사업화 진행이 기대됨.

(출처 : 요약서 3p)

Abstract ▼

□ Purpose & Contents
The first year's Research and Development (R & D) goals are as follows. Development of a new bracing (bracing) damper system device capable of self-healing and restoration by utilizing advanced new materials, completion of detailed design for the preparation of test specimens

□ Purpose & Contents
The first year's Research and Development (R & D) goals are as follows. Development of a new bracing (bracing) damper system device capable of self-healing and restoration by utilizing advanced new materials, completion of detailed design for the preparation of test specimens, preparation of test specimens, and preparations for material and structural tests. The second year's research and development goal is to verify and evaluate the physical performance through analysis of the experimental results by carrying out structural tests, and to perform finite element analysis on the basis of the experimental results to evaluate the stability and energy dissipation capacity of the damper system Understanding the mechanical mechanism and constructing the frame model for the frame structure equipped with the system and numerical analysis of the frame structure to perform elemental performance evaluation and additional evaluation work.

In this study, a new concentrically bracing damper system capable of self-healing and restoring by utilizing advanced materials is carried out from the development to performance verification. First, the properties of the new material to be used in the system are grasped and a model used for numerical analysis is developed. The new material shape memory alloy used in the system is a state-of-the-art new material with self-healing ability that restores the original shape by removing the load only at room temperature. It is applied to the bracing damper device. In order to understand the material behavior of superelastic shape memory alloy, it is simulated by numerical analysis method using analysis program. Then, based on the principle and concept of the mechanical behavior of the system, we develop a new damper system that is fused with advanced materials. The flagship superelastic behavior of the superelastic shape memory alloy provides restoring force for self-healing and circular restoration, and a separate spring device can be installed to provide additional restoring force to the damper system. The restoring force reduces the residual strain generated in the damper system. If it is properly adjusted with the frictional force, it is possible to design the optimum system to maximize the strength enhancement and energy dissipation capacity while minimizing the residual strain. In order to verify the performance of the developed damper system, detailed design is carried out and the restoring force and energy dissipation capacity of each type of damper are evaluated by cyclic load test on the specimen. Based on the experimental results obtained, the finite element analysis model for various design parameters is fabricated and the optimum design method is derived based on the analysis results. Finally, to understand the influence of the damper system in the structure, a model is built for the frame structure equipped with the system, and the elemental performance of the system is evaluated through numerical analysis and additional evaluation is performed. To do this, we design a frame structure capable of two - dimensional structure analysis and apply it to the developed system and analyze it.

□ Results
Developed original technology for new damper system device that minimizes maintenance and repair cost required to minimize damages of structure caused by earthquake and to heal damage, and has world-class related technology by structural performance verification through analysis and experiment We want to create achievements that can be achieved. We will introduce and develop new basic and original technologies in the field of construction and achieve the results of challenging research that publishes several papers in overseas famous journals based on the results of research.

□ Expected Contribution
The smart damper system developed in this study can be restored to its original shape without any additional heat treatment and can be permanently installed and utilized in some structures with severe plastic deformat ion. This can control deformation resulting from external forces such as earthquakes and typhoons, and can prevent the collapse and destruction of structures. In addition, the super-elastic shape memory alloy used in this study provides excellent restoring power and energy dissipation effect to the damper system. Therefore, it is expected that the structure can be used continuously and the maintenance cost can be reduced. The developed damper system is expected to play a leading role in the introduction of the domestic system and it will contribute to reduce the technology gap with the developed countries. The research achievements obtained through the joint operation with small company can be expected to be commercialized finally through the practical steps of product production and technology transfer.

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 3
• 요 약 문 ... 4
• SUMMARY ... 5
• CONTENTS ... 6
• 목차 ... 7
• 제1장. 연구개발과제의 개요 ... 8
• 1. 연구개발의 목적 ... 8
• 2. 연구개발의 필요성 ... 8
• 3. 연구개발 범위 ... 12
• 제2장. 국내외 기술 개발 현황 ... 16
• 1. 국내외 연구동향 및 학술적 성과 ... 16
• 2. 국내외 기술 시장 및 개발 현황 ... 20
• 제3장. 연구 수행 내용 및 성과 ... 26
• 1. 핵심 성과별 연구 수행 내용 및 성과 ... 26
• 제4장. 목표 달성도 및 관련 분야 기여도 ... 55
• 1. 목표 달성도 ... 55
• 2. 관련 분야 기여도 ... 60
• 제5장. 연구개발성과의 활용계획 ... 61
• 제6장. 연구 과정에서 수집한 해외 과학기술 정보 ... 64
• 제7장. 연구개발성과의 보안등급 ... 67
• 제8장. 국가과학기술종합정보시스템에 등록한 연구시설 장비 현황 ... 68
• 제9장. 연구개발과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 69
• 제10장. 연구개발과제의 대표적 연구 실적 ... 70
• 제11장. 기타 사항 ... 73
• 제12장. 참고 문헌 ... 74
• 끝페이지 ... 76