Variable assembly PC member
AssigneesSeoul National University R&Db Foundation, Euro Engineering Co., Ltd.
InventorsThomas Hyun Koo Kang, Keun Sam Kim
Life of this patent
Estimating the term…
Abstract
A variable assembly PC member includes: a plurality of hollow PC modules, each of which has an upper flange and a lower flange spaced apart from each other, and a pair of webs connecting both ends of the upper flange and the lower flange to form a hollow therein; and connectors connecting the plurality of hollow PC modules with each other in the width direction.
Claims9
A variable assembly precast concrete (PC) member comprising:
- a plurality of hollow PC modules, each hollow PC module which has an upper flange and a lower flange spaced apart from each other, and a pair of webs connecting both ends of the upper flange and the lower flange to form a hollow therein;
- and
- connectors connecting the plurality of hollow PC modules with each other in the width direction,
- wherein a plurality of steel bars are provided on the upper flange and the lower flange of the hollow PC module in the width direction of the hollow PC module, and the connectors connect the steel bars of the neighboring hollow PC modules with each other, and
- wherein each connector comprises:
- a coupler coupled to an end portion of one side of each steel bar;
- a headed bar of which one end is coupled to the coupler and another end has an expanded head;
- a socket of which one end is coupled to an end portion of another side of the steel bar and another end has a receiving space for receiving the expanded head of the headed bar;
- and a
- fixing cap coupled to the receiving space of the socket to press the expanded head of the headed bar.
A variable assembly precast concrete (PC) member which is a PC slab in which cast-in-place concrete is not placed, the variable assembly PC member which is formed by a plurality of hollow PC modules of a rectangular cross section connected in the width direction, each hollow PC module comprising an upper flange, a lower flange, and a pair of webs connecting both ends of the upper flange and the lower flange, and having a hollow formed therein,
- wherein steel bars are respectively disposed inside the upper flange and the lower flange of the hollow PC module in the width direction of the hollow PC module and an end portion of each steel bar is exposed to a first pocket portion formed at one side end of the upper and lower flanges, and the steel bars of the hollow PC modules abutting in the width direction are connected to each other by a connector inside the first pocket portion, and non-shrinkage mortar is filled between the neighboring hollow PC modules,
- wherein both end portions of the hollow PC module are joined to a side surface of a first girder disposed at a longitudinal end portion, and
- wherein the hollow PC module located at an outermost position of the variable assembly PC member is rigidly connected to a fixed steel bar, which is embedded in a second girder disposed at a widthwise end portion of the variable assembly PC member, by the connector.
Dependencies are inferred from the claim text.