| 摘要 |
<p>The present invention relates to a composite beam which is a member used to form a steel concrete composite beam, in which constructing a separate mold is not required to pour concrete, and a beam and a slab maintain structurally stable junction relation without a separate front end connector. More specifically, the present invention relates to a composite beam having a half-filled PC tie anchor which solves a problem of twisting of opened cross section by partially filling the cross section in which a tie anchor is installed with concrete and is free from a buckling load problem of a plate in a construction step. According to an embodiment of the present invention, the composite beam having the half-filled PC tie anchor includes a support member formed with two side plates extended upward from a lower plate and both ends of the lower plate and wing plates horizontally extended outward from each of the two side plates; a cross section binding member formed with two inclined plates extended downward from an upper plate having a plurality of holes for pouring concrete perforated and both ends of the upper plate and coupled to an upper portion of the support member to close the cross section; a tie anchor having a height taller than that of the cross section binding member and in which an upper end is joined to a lower surface of the upper plate of the cross section binding member to reduce buckling load of the cross section binding member and to reinforce cross sectional force; a reinforcing steel bar formed with bar arranging plates arranged at an upper surface of the lower plate of the support member at predetermined intervals in a longitudinal direction to be vertically coupled to the lower plate and tensile steel bars arranged by penetrating through penetrating grooves of the bar arranging plates; and a half-filling concrete poured and cured inside the support member to have the lower end of the reinforcing steel bar and the tie anchor to be buried and bound.</p> |
