ESTIMATION OF STORY DRIFT ANGLE FROM CONNECTION DEFORMATION AND PROPOSAL OF SENSOR RECORDING MAXIMUM DEFORMATION OF COLUMN-TO-BEAM CONNECTION OF WOODEN FRAME STRUCTURE

Abstract

It is important to grasp the residual seismic performance of damaged buildings as soon as possible after an earthquake for the early recovery of life. The objective of this paper is to construct the system to judge the safety of damaged wooden buildings after an earthquake by residents themselves. The static lateral loading tests of wooden frame structures are performed to clarify the relationship between the connection deformation and the story drift angle. We also construct the formula for the estimation of the story drift angle from the connection deformation. In addition, we have proposed the low cost sensor, which is supposed to be installed by residents themselves, recording the maximum deformation of column-to-beam connections. With the constructed formula and the proposed low cost sensor, the maximum story drift angle of wooden frame structures can be estimated.