| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent displacement and residual displacement in an earthquake from being excessive. <P>SOLUTION: A vibration control column 1 has a plurality of collection column members 3 extended from its top part along a material axial direction of a single column body 2, and also has a friction mechanism 4 interposed between adjacent collection column members 3, 3 among the collection column members. The friction mechanism 4 comprises stainless steel plates 11a, 11b, and is arranged between a center column member 3a and side column members 3b, 3b, and the stainless steel plates 11a, 11b are positioned at the center column member 3a and side column members 3b respectively so that the both are mutually slidable. A PC steel rod 13 is inserted into unboned holes 12 formed in the collection column members 3a, 3b and through holes formed in the stainless steel plates 11a, 11b, and nuts 15 are threadably engaged with both ends thereof with washers 14 interposed, so that pressing force in a normal direction can be applied to slide surfaces of the stainless steel plates 11a, 11b. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
