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US 11,326,345 B2Granted
Hollow composite beam using dual-web and construction method thereof
AssigneeKorea Institute of Civil Engineering and Building Technology
InventorsHeung Youl Kim, Bum Yeon Cho
Life of this patent
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Abstract
Provided are a hollow composite beam using a dual-web and a construction method thereof. The hollow composite beam using a dual-web can secure space efficiency using a tendon installed in an internal space of a dual-web and can efficiently adjust a tensioning force using the tendon anchored by an anchoring wedge and a separable bolt, wherein the dual-web is formed as a web of a steel beam having a bottom flange on which a deck plate is supported.
Claims8
A hollow composite beam using a dual-web, comprising:
- a dual-web formed by two inclined plates to form an internal space between a lower surface of a top flange of a steel beam and an upper surface of a bottom flange of the steel beam, wherein the two inclined plates continuously extend in a length direction of the hollow composite beam;
- an anchoring unit configured to tense two end portions of a tendon, which is disposed to extend in the internal space in the length direction of the hollow composite beam, using the two inclined plates and anchor the two end portions of the tendon using a tendon anchoring part,
- wherein the anchoring unit comprises an internal groove formed to communicate with an anchorage hole, and wherein an anchoring wedge is anchored in the anchorage hole and comprises a bolt hole that is a horizontal hole extending to be externally exposed through an upper surface and an inside of the anchoring wedge and a fastening part formed in a middle of the bolt hole;
- and
- a separable bolt having a bolt-body part inserted into the bolt hole formed in the anchoring wedge so that a portion at which a front end part is formed is exposed to the internal groove, wherein the bolt-body part is a rod member having a fastener formed in a middle of the rod member and fastened with the fastening part of the anchoring wedge to move in a screwing manner while rotating,
- wherein the separable bolt inserted into the anchoring wedge rotates to allow the anchoring wedge to be separable from the anchorage hole.
3 more elements
A method of constructing a hollow composite beam using a dual-web, comprising:
- constructing a hollow composite beam which comprises a dual-web formed by two inclined plates to form an internal space between a lower surface of a top flange of a steel beam and an upper surface of a bottom flange of the steel beam, wherein the two inclined plates continuously extend in a length direction of the hollow composite beam, and an anchoring unit configured to tense two end portions of a tendon, which is disposed to extend in the internal space in the length direction of the hollow composite beam, using the two inclined plates and anchor the two end portions of the tendon using a tendon anchoring part;
- and
- installing a plurality of deck plates on the bottom flange of the hollow composite beam, arranging slab reinforcement bars, and pouring slab concrete on the plurality of deck plates to construct a composite floor system,
- wherein the anchoring unit comprises an internal groove formed to communicate with an anchorage hole, and wherein an anchoring wedge is anchored in the anchorage hole and comprises a bolt hole that is a horizontal hole extending to be externally exposed through an upper surface and an inside of the anchoring wedge and a fastening part formed in a middle of the bolt hole,
- wherein the hollow composite beam further comprises a separable bolt having a bolt-body part inserted into the bolt hole formed in the anchoring wedge so that a portion at which a front end part is formed is exposed to the internal groove, wherein the bolt-body part is a rod member having a fastener formed in a middle of the rod member and fastened with the fastening part of the anchoring wedge to move in a screwing manner while rotating,
- wherein the separable bolt inserted into the anchoring wedge rotates to allow the anchoring wedge to be separable from the anchorage hole.
3 more elements
Dependencies are inferred from the claim text.