Domestic city gas is supplying in an about 10 million household on present 34 city gas companies because is begun to supply regularly after two 1980 years middle. But, result that focus on city gas supply spread and stable supply for supply area and neglects about safety problem, hundreds casualties such as Ahyun explosion accident and Deagu city gas explosion accident were reached in situation that occurred large size calamity occurs it is dizzliness. In the case of advanced nation, can see that accomplish system and progress that in technology after experience major accident. Therefore, grasp problem investigating safety actual conditions for city gas institution and study about solvable plan is required this. Also, must guide reform and level elevation of a domestic company safety technology through induction and development of safety technology that is suitable in supply, domestic real condition etc. Must help in power positivity that is full text executing high-quality safety education about step High firing mechanism safety technology than present safety education.

Domestic city gas is supplying in an about 10 million household on present 34 city gas companies because is begun to supply regularly after two 1980 years middle. But, result that focus on city gas supply spread and stable supply for supply area and neglects about safety problem, hundreds casualties such as Ahyun explosion accident and Deagu city gas explosion accident were reached in situation that occurred large size calamity occurs it is dizzliness. In the case of advanced nation, can see that accomplish system and progress that in technology after experience major accident. Therefore, grasp problem investigating safety actual conditions for city gas institution and study about solvable plan is required this. Also, must guide reform and level elevation of a domestic company safety technology through induction and development of safety technology that is suitable in supply, domestic real condition etc. Must help in power positivity that is full text executing high-quality safety education about step High firing mechanism safety technology than present safety education.

Need safety diagnostic indicator pointer that is objective as estimation basis to be scientific and manages systematically safety existing condition and level for city gas facilities. Safety diagnostic indicator pointer can divide by greatly two. One is management (Software) side that one that differ with mechanical (Hardware) side that handle laying stress on equipment connected with safety manages organization and management connected with safety. Weight appropriates according to specific gravity that relevant element occupies in facilities. To give so big value in particular element in grant of weight pays attention because break balance of whole guideline and should gives. Finally, efficient safety net may see effect before self-regulation inside by minimum target establishment by government and legal, systematic countermeasure establishment for this, strict law application and each business proprietor and though activity and user's active safety activity forms harmony properly.

Safety management was divided by the competent authorities supplier, and customer with responsibility and authority. Gas accident were caused by treatment problem on the supplier and user, on technical and use management mater, on facilities and goods, and included problem with gas safety connection system. Especially, the big accident of the inside and outside of the country occurred during recent year was newly recognized with the whole society about safety. This study is present standard application plan of each department to use planning gas technical standard and gas utilization standard of introduction model than statute for change of self-regulation management system and complicated regulation of examination center and order.

현재 스트레스 리본 교량의 경우 미국, 유럽 및 일본 등에서 자연파괴를 최소화 하고 아름다운 구조로 인식되어 차도교, 보도교 등에 활발하게 이용되고 있으나 국내에서는 이와 관련된 연구가 매우 미흡한 실정이며 설계방법과 시공기술에 관한 정보와 이해가 부족하여 현재까지 국내에 적용 및 시공이 되고 있지 않은 교량형식으로 분류된다. 금번 연구에서는 우리나라의 설계기준을 정립하기 위한 기초 연구로써 세계 각국의 설계기준을 비교·분석 하고 이를 통한 국내의 적용성에 대한 기준을 검토하고 활용하는데 그 초점을 두고자 한다. 스트레스 리본 교량과 타 교량형식과의 차이점은 바닥판의 구조두께가 상대적으로 얇고 현수케이블이 매립되는 타정식의 특성으로 인하여 모멘트가 크게 감소되어서 하중을 바닥판의 인장력으로 주로 저항하게 하는 형식으로 구성되어있다. 또한 바닥판의 인장력으로 하중을 주로 저항하기 때문에 60m에서 150m의 경간장에 대해서도 효율적으로 적용할 수 있는 구조며, 형상에 따라서는 모멘트하중으로 주로 저항하는 거더교, 아치의 압축력으로 하중을 저항하는 아치교, 그리고 주탑의 내력과 케이블의 인장력으로 하중을 주로 저항하는 현수교와 사장교 등에 비하여 재료비 절감 효과가 크게 나타난다. 가설공법과 기성제품의 세그먼트를 활용한 시공을 조화롭게 시공함으로써 가설비용과 공사기간이 타 교량형식보다 획기적으로 줄어들 수 있고, 이로 인하여 전체공사비가 30%이상 절감될 수 있는 교량으로 인식되어진다. 현행 국내의 교량설계는 “도로교 설계기준”의 강교편이나 콘크리트편에 아치교, 트러스, 합성거더, 케이블 등의 교량형식별로 설계지침을 이용하여 이루어지고 있으나 차도교 및 보도교의 설계기준을 정립하고 국내 현실에 맞는 시공 기술을 개발하고자 하는데 그 의미가 크다고 판단된다. 따라서 본 연구에서는 외국의 사례를 바탕으로 국내의 개발가능성에 대한 비교를 하고자 한다.