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公开(公告)号：US12116791B1
公开(公告)日：2024-10-15
申请号：US18128167
申请日：2023-03-29
发明人： Bilal El Ariss , Said Elkholy , Ahmad Shehada
CPC分类号： E04G23/0218 , E04B1/92 , E04B1/98 , E04H9/04 , E04H9/06
摘要： The invention discloses a mitigating method comprising a reinforcement scheme for upgrading progressive collapse resistance of a floor system prone to column failure, the method comprising adding a plurality of diagonal steel bars in the vicinity of a potentially failed column, thereby developing a post-tensioning axial compressive force in the floor beams of the floor system. Steel bars or links left over from construction sites as well as used steel bars and structural steel sections from demolition sites are used/reused as the plurality of diagonal steel bars to mitigate progressive collapse of framed structures under potential column failure. Depending on a number and configuration of the added diagonal steel bars, the percentage increases in the beam axial compressive force, catenary action capacity, total dissipated energy, and maximum vertical displacement by the mitigated floor system ranged between 104.5% and 161.3%, 105.1% and 180.5%, 115% and 241.8%, and 106% and 167.4%, respectively.
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2.发明公开公开(公告)号：US20240328182A1
公开(公告)日：2024-10-03
申请号：US18128167
申请日：2023-03-29
发明人： Bilal EL ARISS , Said ELKHOLY , Ahmad SHEHADA
IPC分类号： E04G23/02
CPC分类号： E04G23/0218 , E04B1/92 , E04B1/98 , E04H9/04 , E04H9/06
摘要： The invention discloses a mitigating method comprising a reinforcement scheme for upgrading progressive collapse resistance of a floor system prone to column failure, the method comprising adding a plurality of diagonal steel bars in the vicinity of a potentially failed column, thereby developing a post-tensioning axial compressive force in the floor beams of the floor system. Steel bars or links left over from construction sites as well as used steel bars and structural steel sections from demolition sites are used/reused as the plurality of diagonal steel bars to mitigate progressive collapse of framed structures under potential column failure. Depending on a number and configuration of the added diagonal steel bars, the percentage increases in the beam axial compressive force, catenary action capacity, total dissipated energy, and maximum vertical displacement by the mitigated floor system ranged between 104.5% and 161.3%, 105.1% and 180.5%, 115% and 241.8%, and 106% and 167.4%, respectively.
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公开(公告)号：US12091360B2
公开(公告)日：2024-09-17
申请号：US17324129
申请日：2021-05-19
发明人： Hyeong Yeol Kim , Gum Sung Ryu , Kyung Taek Koh , Young Jun You , Gi Hong An
IPC分类号： C04B20/00 , C04B20/10 , C04B22/10 , C04B28/08 , E04G23/02 , C04B103/00 , C04B111/21 , C04B111/72
CPC分类号： C04B20/0068 , C04B20/1066 , C04B22/10 , C04B28/082 , E04G23/0203 , E04G23/0218 , C04B2103/0078 , C04B2111/21 , C04B2111/723
摘要： Provided are a concrete structure repaired and reinforced using a textile grid reinforcement and a highly durable inorganic binder and a method of repairing and reinforcing the same, capable of easily repairing and reinforcing an old concrete structure by adhering a textile grid reinforcement, which is coated with a coating material to improve adhesiveness, to the old concrete structure and by adhering a textile grid reinforcement selectively using a highly durable inorganic binder having chloride penetration resistance performance or chemical resistance performance according to a use environment and a reinforcement purpose, that is, by adhering a textile grid reinforcement using an inorganic binder such as cement in place of an organic adhesive. Further, the concrete structure has excellent refractory performance because both the textile grid reinforcement such as a carbon fiber and the highly durable inorganic binder are incombustible materials, and can be effectively applied to reinforcing facilities exposed to the danger of fire.
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公开(公告)号：US12054959B2
公开(公告)日：2024-08-06
申请号：US17508578
申请日：2021-10-22
发明人： Scott Hemphill
CPC分类号： E04G23/0218 , B32B5/26 , B32B2250/03 , B32B2556/00 , E04G2023/0251
摘要： An improved composite material used to connect, strengthen and/or repair concrete. The improved composite material includes a first fiber system including at least one fiber layer. Each fiber layer includes a plurality of fibers. The binding material can be used to optionally secure together the plurality of fibers. The improved composite material is positioned and secured in a slot cut in a concrete structure. The top edge of the improved composite material includes a recess portion.
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公开(公告)号：US12041707B2
公开(公告)日：2024-07-16
申请号：US17269478
申请日：2019-08-23
CPC分类号： H05B6/10 , E04G23/0218 , H05B6/36
摘要： A repair apparatus for repairing damaged reinforcing bars in a structure includes a strip-shaped conductor including conductive wires arranged in a height direction, the conductive wires being arranged in parallel, a high-frequency current generation unit configured to supply a high-frequency current between the conductive wires of a first end side of the conductor and the conductive wires of a second end side of the conductor, and a connection body configured to connect the conductive wires to each other and connect the first end side and the second end side of the conductor so that the conductive wires form a coil, and the high-frequency current generation unit supplies a high-frequency current between a conductive wire at an upper end or a lower end of the first end side of the conductor and a conductive wire at a lower end or an upper end of the second end side of the conductor.
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6.发明授权公开(公告)号：US11802414B2
公开(公告)日：2023-10-31
申请号：US17917172
申请日：2022-03-09
申请人： SHANDONG UNIVERSITY
发明人： Li Tian , Meng Yang , Juncai Liu , Xianchao Luo , Xiaoyang Wang , Zhen Ma , Xiangrui Meng
IPC分类号： E04G23/02
CPC分类号： E04G23/0218
摘要： Provided a bolt-bearing circumferential device for reinforcing and correcting an angle iron of a transmission tower, comprising a reinforcing angle iron, a holding hoop, and a connector; the reinforcing angle iron is arranged at an inner side of two limbs of an angle iron to be reinforced, an axis direction of the reinforcing angle iron is parallel to the angle iron to be reinforced, and an outer wall of two limbs of the reinforcing angle iron are fitted with an inner wall of the angle iron to be reinforced; the holding hoop is arranged at an outer side of the reinforcing angle iron and the angle iron to be reinforced, and each part of the holding hoop are connected together through the high-strength bolts; a side wall of the holding hoop is provided with three groups of threaded holes, wherein an axis of a first group of the threaded holes and an axis of a second group of the threaded holes are perpendicular to each other, a first group of bolts pass through the first group of the threaded holes to apply a reinforcing force to an outer side of a first limb of the angle iron to be reinforced, and a second group of bolts pass through the second group of the threaded holes to apply a reinforcing force to an outer side of a second limb of the angle iron to be reinforced; and, a third group of bolts pass through a third group of the threaded holes to apply a reinforcing force to the reinforcing angle iron through the connector.
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公开(公告)号：US20180266135A1
公开(公告)日：2018-09-20
申请号：US15984376
申请日：2018-05-20
CPC分类号： E04H9/027 , E02D27/34 , E04B1/98 , E04C2003/026 , E04G23/0218 , E04G23/0225 , E04G23/0237 , E04H9/021 , E04H9/024 , E04H9/025 , E04H9/028
摘要： A building structure having at least one storey including at least one column; at least one brace attached at one end to one side of at least one of the columns and at a second end to a fixed foundation surface; the brace attached to the at least one column at an incline; the at least one brace having a first portion and a second portion; wherein the at least one brace has a first in-use configuration in which the first portion is freely moveable with respect to the second portion such that a gap is formed in the brace preventing the transmission of force axially along the brace by preventing tensional forces from travelling axially along the brace, and a second in-use configuration in which the gap is closed by the first portion and the second portion being in contact to permit the transmission of forces axially along the brace; and wherein the second in-use configuration allows compressive forces to be transmitted along the brace such that the brace is activated when sufficient deformation occurs in the column in a direction that compresses the brace; and further comprising at least one damper functionally connected to one or both of the first and second portions and configured to provide damping as the at least one brace moves from the first in-use configuration to the second in-use configuration.
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公开(公告)号：US09976315B2
公开(公告)日：2018-05-22
申请号：US14455570
申请日：2014-08-08
IPC分类号： E04G23/02 , H04W16/26 , H04W52/02 , H04W48/16 , E04H9/02 , H04W24/02 , E04H9/14 , H04W48/12 , H04W74/08 , E04H12/12 , E04H12/22
CPC分类号： E04G23/0218 , E04G2023/0251 , E04H9/025 , E04H9/14 , E04H12/12 , E04H12/2215 , H04W16/26 , H04W24/02 , H04W48/12 , H04W48/16 , H04W52/0219 , H04W74/0833 , Y02A50/14 , Y02D70/00
摘要： An elongate member, reinforcement system and associated methods is disclosed. The system can include an elongate member, a structure associated with an end of the elongate member, a support member coupled to the structure and laterally offset from the elongate member extending about an end portion of the elongate member, a support layer surrounding the end portion of the elongate member such that at least a portion of the support member is between the support layer and the elongate member, and a structural filler disposed between the support layer and the elongate member. A load tending to cause relative movement of the end portion of the elongate member and the structure can be transferred through the structural filler and the support member to provide support for the elongate member.
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公开(公告)号：US09890546B2
公开(公告)日：2018-02-13
申请号：US14555539
申请日：2014-11-26
申请人： Mohammad Reza Ehsani
发明人： Mohammad Reza Ehsani
CPC分类号： E04G23/0218 , E04C3/30 , E04G23/0225 , E04H12/2292
摘要： A method and an article of manufacture are presented for reinforcing and/or repairing columns, towers, pylons, and the like, constructed from various materials including concrete, masonry, wood, plastics, and the like. One or more tensile bearing bands/rebars of material, such as fibrous material, are longitudinally/axially adhered or attached to the structure followed by wrapping of a semi-flexible or a semi-rigid sheet of material, at a relatively small distance, around the column. Subsequently filler material is poured in the cavity created between the wrapped sheet material and the column. Optionally, multiple layers of various material sheets, each sheet having substantially the same or different properties, may be wrapped around or be attached to the primary wrapped sheet. Appropriately chosen reinforcement bands/rebars, reinforcement sheets, and filler material can provide any desired additional tensile, compressive, shear and flexural strength to the column.
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公开(公告)号：US20180023297A1
公开(公告)日：2018-01-25
申请号：US15550297
申请日：2016-01-28
发明人： Mina DAWOOD , Mossab EL-TAHAN
CPC分类号： E04C5/073 , B23P6/04 , B28B23/043 , B28B23/046 , B29C73/10 , B29K2305/08 , B29K2307/04 , B32B15/02 , B32B15/08 , B32B27/38 , C22C1/00 , E04C5/085 , E04G23/0218 , E04G2023/0255
摘要： A self-stressing shape memory alloy (SMA)/fiber reinforced polymer (FRP) composite patch is disclosed that can be used to repair cracked steel members or other civil infrastructures. Prestressed carbon FRP (CFRP) patches have emerged as a promising alternative to traditional methods of repair. However, prestressing these patches typically requires heavy and complex fixtures, which is impractical in many applications. This disclosure describes a new approach in which the prestressing force is applied by restraining the shape memory effect of nickel titanium niobium alloy (NiTiNb) SMA wires. The wires are subsequently embedded in an FRP overlay patch. This method overcomes the practical challenges associated with conventional prestressing.
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