Column structure and base member

摘要

In a column structure, a steel column having flanges integrally provided at both width direction ends of a web is welded to a base plate. The base plate is also fixed to first anchor bolts and to second anchor bolts, with the first anchor bolts and the second anchor bolts disposed at the opposite side of the flanges to the web. The second anchor bolts are also disposed at the web width direction inside with respect to the first anchor bolts. Therefore, load bearing ability of a column seat can be efficiently exhibited, and the thickness dimension of the base plate can be reduced.

主权项

1. A column structure comprising:
a column member that is integrally provided with a flange at each of two sides of a web in a width direction of the web; a base member having an upper side to which the column member is joined; a first anchor member including a lower end side to which a first anchor portion is attached with the lower end side anchored in concrete, and including an upper end side to which the base member is fixed at an opposite side of the flange from the web; and a second anchor member including a lower end side to which a second anchor portion is attached with the lower end side anchored in concrete, and including an upper end side to which the base member is fixed at a position further from the web than the first anchor member in a direction orthogonal to the width direction of the web, and at a position closer to the flange than the first anchor member in the width direction of the web, wherein the base member is fixed to the upper end side of the second anchor member at an outer side of the flange in the width direction of the web.