Cost Performance of Earthquake-Resistant Reinforcement Work for Wooden Housing Based on Actual Construction Data

Abstract

One of the obstruction to reinforcement work for earthquake-resistant of wooden houses is unclear efficacy on the cost. To clarify the cost performance of the reinforcement work for wooden housing, the authers obtained actual construction data-sets cooperated with Japan wooden housing earthquake-proof reinforcing businesses cooperative and a construction company. Based on the data-sets and interviews, this paper presents 1) problems related to the government grants from the viewpoints of local governments, construction companies, and residents, 2) the actual situation and contents of the reinforcement work in Japan, 3) the relationship between the cost and improvement on its earthquake-resistant capacity, and 4) suggestions how the reinforcement work in Japan should be done.