Connector system for securing an end portion of a steel structural member to a vertical cast concrete member
A steel structural member is secured to a vertical cast concrete member or wall by a connector system including a fabricated steel receiver embedded within the wall. Embedded anchors are attached to the receiver which has upper and lower front wall portions flush with the concrete wall and define a front opening. A support bracket has a horizontal plate attached to the beam and a vertical plate which fits through the front opening within the receiver. The bracket is attached to the beam which is then elevated, and the vertical plate is inserted through the opening into the receiver. The beam and vertical plate are then shifted downwardly until opposite upper and lower edge portions of the vertical plate are blocked by the front wall portions of the receiver. In the illustrated embodiment, the front opening and vertical plate are generally rectangular with the opening wider than the plate.
1. A connector system adapted for supporting an end portion of a structural member by a vertical cast concrete member, said connector system comprising
a metal receiver embedded in said concrete member and including an upper front wall portion spaced vertically above a lower front wall portion to form upper and lower front wall portions positioned substantially flush with a vertical surface of said concrete member and defining an opening between said upper and lower front wall portions,
said receiver further including a rear wall portion spaced inwardly within said concrete member from said front wall portions and rigidly connected to said front wall portions,
at least one anchor member rigidly connected to said receiver and embedded in said concrete member,
a metal connecting bracket including a horizontally extending support plate rigidly connected to a substantially vertical attachment plate with said support plate adapted to be connected to the end portion of the structural member,
said attachment plate adapted to be inserted through said opening into a cavity within said receiver between said rear wall portion and said front wall portions in response to tilting said bracket and moving an upper portion of said attachment plate through said opening into an upper portion of said cavity behind said upper front wall portion,
said cavity and said opening providing for tilting said bracket and moving a lower portion of said attachment plate into said cavity and thereafter for shifting said attachment plate downwardly within said cavity, and
said upper front wall portion and said lower front wall portion of said receiver overlap and block said upper portion and said lower portion of said attachment plate of said bracket in a locked position after said attachment plate is shifted downwardly within said cavity.
2. A connector system as defined in claim 1 wherein said rear wall portion of said receiver is integrally connected to said front wall portions of said receiver by a top wall portion and a bottom wall portion, and said attachment plate of said bracket engages said bottom wall portion of said receiver when said bracket is in said locked position.
3. A connector system as defined in claim 1 wherein said bracket includes a gusset plate rigidly connecting a bottom surface of said support plate to a front surface of said attachment plate, and said opening defined between said upper and lower front wall portions receives said gusset plate with said lower front wall portion disposed below said gusset plate.
4. A connector system as defined in claim 1 wherein said anchor member and a second said anchor member are rigidly secured to said rear wall portion of said receiver.