A Study on Long-Term Maintenance Cost of High-Rise Steel Building in Taiwan

• Main Authors: FANG,YANG-SHENG, 方揚盛
• Other Authors: LIAO,CHU-TSEN
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/06997050333753483907

碩士 === 國立高雄大學 === 創意設計與建築學系碩士班 === 104 === Planning, designing, constructing, maintaining and tearing down buildings are 5 steps of the building cycle. Buildings have a life cycle just as humans; after completion, they get damaged, age and there is reconstruction. All of building life cycle discussions ignore building maintenance. Therefore, this study talks about using a building 100 years after it was completed, the cost of maintaining a building, which includes seismic repair and the cost of building renewal, compared to the cost of original construction to emphasize the importance of building maintenance. There are 2 points of this study: seismic repair and building renewal. To calculate the cost of seismic repair, we first use nonlinear dynamic analysis from earthquake records to assess deformation and the demand of plastic deformation angle and drift angle in the building. Second, we use fragility analysis and damage indicators to draw fragility curve. The damage of the years of SR buildings are divided into constructions and non-constructions. The cost of the construction part is focused on the rigid beam-column joint which cost is referenced to the cost in its foreign country. And the cost of non construction part is calculated by the décor fee multiplied by damage. The cost of building renewal is referenced to the period and items that was drafted by the Ministry of Land, Infrastructure. Transport and Tourism(MLIT) and Architectural Institute of Japan(A.I.J.), and we asked people by phone interview to ask what items were repaired multiplied by frequency. This study researches 2 buildings. Case 1 uses SN490B steel to be the beams. Case 2 uses SM570 from the 1st floor to the 14th floor on the beams. Both of them use SM490 to be the girder. There is 52% of building maintenance, construction loss is 31%, non-construction loss is 21% on case 1 of seismic repair. The build maintenance is 46%, construction loss is 23%, non-construction loss is 23% on case 2. The light steel frame ceiling is 49% of non-construction cost on case 1 and 2, which is also the highest rate. The maintenance cost of renewal building is 48% on case 1, 54% on case 2, and the outside wall cost is 55% of repair fee, which is the highest rate for building renewal. It spends 4% on maintenance cost in case 1 and 2 twenty years after it was built, and 18% after 40 years, 35% after 60 years, and 95% after 80 years on case 1; 86% on case2. Comparing the new buildings 60 years after construction, maintenance cost a lot between 60 years to 80 years.