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1. 发明授权

US11846102B2 Sheathing clamps for unbonded post-tensioning assemblies 有权
公开(公告)号：US11846102B2
公开(公告)日：2023-12-19
申请号：US17553347
申请日：2021-12-16
申请人： Polyform, Inc.
发明人： Patrick Kohls , Jonathan Kohls
IPC分类号： E04C5/10 , E04C5/12 , E04G21/12
CPC分类号： E04C5/10 , E04C5/122 , E04G21/12
摘要： This disclosure is directed to retention clamps that may be included in post-tensioning assemblies. More specifically, in some embodiments, a sheathing-retaining clamp for a post-tensioning assembly may comprise a body adjustable between an open position and a closed position, wherein in the closed position, the body is configured to wrap around a tendon assembly of the post-tensioning assembly, and a fastening mechanism configured to lock the body in the closed position. In some such embodiments, the sheathing-retaining clamp may additionally comprise a plurality of compression ribs that extend radially inwards from the body in the closed position and that are configured to directly contact a sleeve of the tendon assembly.

2. 发明授权

US11692959B2 System and method for imaging tendon cross sections for detecting voids and other deficiencies in grouted external tendons 有权
公开(公告)号：US11692959B2
公开(公告)日：2023-07-04
申请号：US17884904
申请日：2022-08-10
申请人： UNIVERSITY OF SOUTH FLORIDA
发明人： Alberto A. Sagues , Hani Freij , David Adam Dukeman , Christopher Lewis Alexander
IPC分类号： G01N27/82 , G01N27/20 , G01N27/90 , G01N27/9013 , G01N33/38 , E04C5/10 , G01R33/028 , G01R33/10 , G01R33/12
CPC分类号： G01N27/20 , G01N27/82 , G01N27/902 , G01N27/9006 , G01N27/9046 , G01N33/383 , E04C5/10 , G01R33/028 , G01R33/10 , G01R33/12
摘要： An exemplary method of indicating a condition of grout within a post-tensioned tendon involves positioning a magnet and a metallic sensing plate in close proximity to an outer surface of the post-tensioned tendon; rotating the magnet and the metallic sensing plate around the outer surface of the post-tensioned tendon; measuring an amount of magnetic forces applied to the magnet during rotation of the magnet around the post-tensioned tendon; measuring an impedance between the metallic sensing plate and metallic strands within the post-tensioned tendon during rotation of the metallic sensing plate around the post-tensioned tendon; and generating an image of a cross-section of the post-tensioned tendon indicating one or more grout conditions in spatial proximity to the metallic strands within the post-tensioned tendon based on measurement data using the magnet and the metallic sensing plate.

3. 发明申请

US20160376763A1 METHOD OF CONSTRUCTING A WIND TOWER FOUNDATION 审中-公开
标题翻译：构造风力塔基金会的方法
公开(公告)号：US20160376763A1
公开(公告)日：2016-12-29
申请号：US15137157
申请日：2016-04-25
申请人： Ahmed Phuly
发明人： Ahmed Phuly
IPC分类号： E02D17/04 , E02D27/08 , E02D27/42 , F03D13/20 , E04G21/02 , E04C5/06 , E04H12/16 , E02D27/02 , E02D27/26
CPC分类号： B28B1/14 , E02D27/02 , E02D27/08 , E02D27/26 , E02D27/42 , E02D27/425 , E02D2300/00 , E02D2300/002 , E04C5/0645 , E04C5/08 , E04C5/10 , E04G21/02 , E04G21/12 , E04H12/16 , E04H12/341 , F03D13/22 , Y02B10/30 , Y02E10/728
摘要： A fatigue resistant gravity based spread footing under heavy multi-axial cyclical loading of a wind tower. The foundation having a central vertical pedestal, a substantially horizontal continuous bottom support slab, a plurality of radial reinforcing ribs extending radially outward from the pedestal. The pedestal, ribs and slab forming a continuous monolithic structure. The foundation having a three-dimensional network of post-tensioning elements that keep the structural elements under heavy multi-axial post compression with a specific eccentricity intended to reduce stress amplitudes and deflections and allows the foundation to have a desirable combination of high stiffness and superior fatigue resistance. The foundation design reduces the weight and volume of materials used, reduces cost, and improves heat dissipation conditions during construction by having a small ratio of concrete mass to surface area thus eliminating the risk of thermal cracking due to heat of hydration.
摘要翻译：在风力塔的重多轴向循环加载下的耐疲劳重力传播基础。具有中心垂直底座的基座，基本上水平的连续底部支撑板，从基座径向向外延伸的多个径向加强筋。基座，肋骨和板坯形成连续的整体结构。该基础具有后张紧元件的三维网络，其将结构元件保持在重多轴向后压缩之下，具有旨在减小应力幅度和偏转的特定偏心度，并且允许基础具有高刚度和优异性的期望组合耐疲劳性基础设计减少了使用材料的重量和体积，降低了成本，并且通过使混凝土质量与表面积的比例小而改善了施工过程中的散热条件，从而消除了由于水合作用导致的热裂纹的风险。

4. 发明申请

US20160076250A1 PREGROUTED PC STEEL MATERIAL AND CURING METHOD FOR PREGROUTED LAYER THEREIN 审中-公开
标题翻译： PREGROUTED PC钢材料和固化层的固化方法
公开(公告)号：US20160076250A1
公开(公告)日：2016-03-17
申请号：US14891638
申请日：2014-12-18
申请人： SUMITOMO (SEI) STEEL WIRE CORP. , SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Katsuhito OSHIMA , Masato YAMADA , Yoshiyuki MATSUBARA , Kiminori MATSUSHITA , Shuichi TANAKA , Jun SUGAWARA , Shingo NAKAJIMA
IPC分类号： E04C5/08 , E04C5/01
CPC分类号： E04C5/085 , E04C5/01 , E04C5/08 , E04C5/10 , E04G21/12
摘要： A pregrouted PC steel material (10) includes a 19-wire-twisted PC strand (1), a pregrouted layer (2) disposed on an outer periphery of the PC strand (1), and a sheath (3) configured to cover an outer periphery of the pregrouted layer (2). A filling resin (4) is filled between steel wires (side wires) (1b, 1c, 1d). Since the filling resin (4) does not exude to the pregrouted layer (2) before tensioning of the PC strand (10), an operation of tensioning the PC strand (1) is not hindered by curing of the pregrouted layer (2). In contrast, since the gap between the steel wires is reduced when the PC strand (1) is tensioned, the filling resin (4) flows out (exudes) from between the steel wires to the pregrouted layer (2) to cure the pregrouted layer (2) only after the reduction.
摘要翻译：预浸渍的PC钢材料（10）包括19根绞合的PC股（1），设置在PC股（1）的外周上的预浸渍层（2）和护套（3），其被构造成覆盖预浸渍层（2）的外周。填充树脂（4）填充在钢丝（侧线）（1b，1c，1d）之间。由于在PC股（10）张紧之前填充树脂（4）不会渗透到预浸渍层（2）上，所以拉伸PC股（1）的操作不会受到预浸渍层（2）的固化的阻碍。相反，由于当PC绞线（1）被张紧时，钢丝之间的间隙减小，所以填充树脂（4）从钢丝之间流出（渗出）到预浸渍层（2）以固化预浸层（2）仅在减少之后。

5. 发明申请

US20140048975A1 Corrosion Protection of Cables in a Concrete Structure 审中-公开
标题翻译：混凝土结构中电缆的腐蚀保护
公开(公告)号：US20140048975A1
公开(公告)日：2014-02-20
申请号：US13585180
申请日：2012-08-14
申请人： David Whitmore
发明人： David Whitmore
IPC分类号： H01B13/22
CPC分类号： E04C5/015 , B28B23/02 , C04B20/1003 , C04B20/1014 , C04B2111/26 , C23F11/00 , D07B7/12 , D07B2201/2077 , D07B2205/2046 , D07B2205/30 , D07B2205/3017 , D07B2501/2023 , E04C5/08 , E04C5/10 , E04G21/12 , G01N19/10 , H01B13/221 , C04B32/02 , D07B2801/16
摘要： Steel reinforcing cables in concrete are protected against corrosion by injecting a carrier fluid and corrosion inhibitors into interstitial spaces between the wires of the cable at a first location along the cable and causing the fluid to pass through the interstitial spaces between the wires of the cable to a second location along the cable. The cable comprises an array of wires confined together and intimately surrounded by a covering material which is engaged with a periphery of the cable so that there are insufficient interconnected spaces between the cable and the covering material to allow passage of fluid longitudinally along the cable outside the cable itself. The method can be used with pre-stressed concrete, with post-tensioned bonded cables and with extruded un-bonded mono-strand cables.
摘要翻译：通过在电缆的第一位置沿着电缆注入载体流体和腐蚀抑制剂到电缆的电线之间的间隙空间中并且使流体通过电缆的电线之间的间隙，将混凝土中的钢筋加固电缆防止腐蚀沿着电缆的第二个位置。电缆包括限定在一起并且被覆盖材料紧密包围的电线阵列，所述覆盖材料与电缆的周边接合，使得电缆和覆盖材料之间的互连空间不足以允许流体沿着电缆沿着电缆的外部通过电缆本身。该方法可与预应力混凝土一起使用，具有后张紧的粘合电缆和挤出的未粘合单股电缆。

6. 发明授权

US08376290B2 Interconnecting alignment and support system with latching mechanism 有权
标题翻译：具有锁定机构的互连对准和支撑系统
公开(公告)号：US08376290B2
公开(公告)日：2013-02-19
申请号：US12940925
申请日：2010-11-05
申请人： Steve Tollefson
发明人： Steve Tollefson
IPC分类号： F16L3/08
CPC分类号： E04B5/48 , E04C5/10 , E04C5/20 , F16L3/222
摘要： An interconnecting alignment and support system for supporting and maintaining alignment of at least one conduit or pipe is disclosed. The system may be used, for example, during a concrete pour operation or other construction operation. The system comprises a base spacer and, optionally, one or more of an intermediate spacer and/or another base spacer. The base spacer is constructed to be capable of interlocking with another spacer on each side and the top. The intermediate spacer is constructed to be capable of interlocking with another spacer on each side and both the top and bottom. The interlocks on the spacers may be releasably latched when fully interlocked. By interlocking the spacers, a matrix structure for aligning and supporting conduit or pipe may be created. The base spacer is attachable to a surface, so that the alignment and support system may be fixed in place.
摘要翻译：公开了用于支撑和保持至少一个管道或管道对准的互连对准和支撑系统。该系统可以用于例如在混凝土浇注操作或其它施工操作期间。该系统包括基部间隔物和任选的中间间隔物和/或另一个基底间隔物中的一个或多个。基座间隔件被构造成能够与每侧和顶部上的另一间隔件互锁。中间间隔件被构造成能够与每个侧面上的另一个间隔件以及顶部和底部互锁。当完全互锁时，间隔件上的互锁可以可释放地锁定。通过互锁间隔件，可以产生用于对准和支撑导管或管道的矩阵结构。基座间隔件可附接到表面，使得对准和支撑系统可以固定就位。

7. 发明授权

US07055288B2 Pre-stressing sheath 失效
标题翻译：预应力护套
公开(公告)号：US07055288B2
公开(公告)日：2006-06-06
申请号：US10414764
申请日：2003-04-16
申请人： Donald B. Coogan
发明人： Donald B. Coogan
IPC分类号： E04B1/00 , E04C5/08
CPC分类号： E04C5/10
摘要： A pre-stressing sheath for preventing wet concrete from penetrating between the sheath and strands being debonded, and for covering sections of reinforcing strands in pre-stressed concrete beams such that any potential strand tension transmitted to a beam is nullified by allowing the strands to slide freely within the pre-stressing sheath. The pre-stressing sheath is made up of a first hollow cylindrical sheath section having a longitudinal slit that allows the first sheath section to be opened and placed about the concrete reinforcing element, and a second hollow cylindrical sheath section having a longitudinal slit that allows the sheath section to be opened and placed about both the concrete reinforcing element and the first sheath section. The first sheath section further includes an integral outwardly projecting ridge for interlocking with the longitudinal slit of the second hollow cylindrical sheath section.
摘要翻译：用于防止湿混凝土穿透鞘和股线之间的预应力护套脱粘，并且用于在预应力混凝土梁中覆盖加强股线的部分，使得通过允许股线滑动而传递到梁的任何潜在的股线张力被消除在预应力护套内自由。预应力护套由具有允许第一护套部分围绕混凝土加强元件打开和放置的纵向狭缝的第一中空圆柱形护套部分和具有纵向狭缝的第二中空圆柱形护套部分组成，该纵向狭缝允许护套部分打开并放置在混凝土加强元件和第一护套部分周围。第一护套部还包括用于与第二中空圆柱形护套部分的纵向狭缝互锁的整体向外突出的脊。

8. 发明授权

US06843031B1 Bonded monostrand post-tension system 有权
标题翻译：保固单张后张力系统
公开(公告)号：US06843031B1
公开(公告)日：2005-01-18
申请号：US10621213
申请日：2003-07-17
申请人： Felix L. Sorkin
发明人： Felix L. Sorkin
IPC分类号： E04C5/08 , E04C5/10 , E04C5/12
CPC分类号： E04C5/10 , E04C5/08 , E04C5/122 , Y10T403/7066
摘要： A bonded monostrand post-tension system including an anchor having a tubular extension extending therefrom, a duct having an interior passageway formed therein, a coupler having a one end affixed to the tubular extension of the anchor and another end affixed to the duct, and a single tendon secured to the anchor and extending through the duct and the coupler. The coupler has a first internal thread at one end thereof and a second internal thread at an opposite end thereof. The internal threads are in interference-fit relationship with unthreaded surfaces of the duct and the tubular extension of the anchor.
摘要翻译：一种粘结单体后张力系统，包括具有从其延伸的管状延伸部的锚固件，其中形成有内部通道的管道，具有固定到锚固件的管状延伸部的一端的连接器和固定到管道的另一端部，单个腱固定到锚固件并延伸通过管道和联接器。联接器在其一端具有第一内螺纹，在其相对端具有第二内螺纹。内螺纹与管道的无螺纹表面和锚的管状延伸部处于干涉配合关系。

9. 发明申请

US20040159058A1 Unbonded post-tensioning system 审中-公开
标题翻译：未粘合后张紧系统
公开(公告)号：US20040159058A1
公开(公告)日：2004-08-19
申请号：US10370634
申请日：2003-02-19
发明人： Jacques Gulbenkian
IPC分类号： E04C005/08
CPC分类号： E01D19/14 , E04C5/08 , E04C5/10 , E04C5/12 , E04G21/12
摘要： An unbonded post-tensioning system and method are disclosed, as well as concrete structures utilizing an unbonded post-tensioning system. A void is created and maintained through the concrete structure in which at least one stainless steel strand is placed and tensioned. The void containing the cable is maintained unfilled. Strands may thus be removed and inspected, and reinserted or replaced as necessary. The invention has the advantages of reducing corrosion and permitting non-destructive inspection and replacement of individual strands.
摘要翻译：公开了一种未粘合的后张紧系统和方法，以及利用未粘合的后张紧系统的混凝土结构。通过其中放置和张紧至少一根不锈钢绞线的混凝土结构产生和维持空隙。包含电缆的空隙保持未填充。因此，绳可以被去除和检查，并且根据需要重新插入或更换。本发明具有减少腐蚀并允许对各股线进行非破坏性检查和更换的优点。

10. 发明授权

US06389764B1 Method for making prefabricated structural elements, and prestressed structure produced with the structural 有权
标题翻译：制造预制结构件的方法，以及结构制造的预应力结构
公开(公告)号：US06389764B1
公开(公告)日：2002-05-21
申请号：US09403909
申请日：1999-10-27
申请人： Jérôme Stubler , Jean-François Nieto
发明人： Jérôme Stubler , Jean-François Nieto
IPC分类号： E04C252
CPC分类号： E01D19/16 , E01D2101/28 , E04C5/10
摘要： A process of manufacturing concrete construction elements is provided. A first sheath is placed in a first mold, the first sheath connected at an end to a first sleeve applied against a wall of the mold, the sleeve engaging a positioning boss placed on the wall. Concrete is poured into the first mold and set to obtain the first element. The first element is extracted from the first mold and includes a contact face shaped by the wall. A second sheath is placed in a second mold, the second mold having one side formed by the contact face. The second sheath includes an end connected to a second sleeve held in position relative to the first sleeve by a positioning joint. Concrete is poured into the second mold and set to obtain a second element. The second element is extracted from the second mold by disengaging the positioning joint.
摘要翻译：提供制造混凝土结构件的工艺。第一护套被放置在第一模具中，第一护套在端部连接到第一套筒上，第一套管施加在模具的壁上，套筒接合放置在壁上的定位凸起。将混凝土倒入第一模具中并设置以获得第一元件。第一元件从第一模具中提取并且包括由壁形成的接触面。将第二护套放置在第二模具中，第二模具具有由接触面形成的一侧。第二护套包括通过定位接头连接到相对于第一套筒保持在适当位置的第二套筒的端部。将混凝土倒入第二模具中并设置以获得第二元件。通过脱离定位接头从第二模具中提取第二元件。

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