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1.发明申请公开(公告)号：US20200040564A1
公开(公告)日：2020-02-06
申请号：US16341447
申请日：2017-10-26
发明人： Bo WU , Jianbo ZANG
摘要： A reinforced compound concrete beam-column joint containing demolished concrete lumps and a construction method are disclosed. The steel strip stirrups configured to constrain column longitudinal reinforcements of the reinforced compound concrete column containing demolished concrete lumps and the steel connection sheets with grooves are arranged in joint at positions of the upper and lower beam longitudinal reinforcements of the reinforced compound concrete beam containing demolished concrete lumps. The steel strip stirrups abut against the column longitudinal reinforcements. The steel connection sheets are welded to the steel strip stirrups. One end of the short steel bars with threads at one end is welded into the grooves of the steel connection sheets, and the other end is connected to the beam longitudinal reinforcement via a steel sleeve. The joint prevents the beam longitudinal reinforcements from passing through the joint and thus causing reinforcements congestion.
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公开(公告)号：US20170253526A1
公开(公告)日：2017-09-07
申请号：US15512068
申请日：2014-10-24
发明人： Bo WU , Qiang ZHANG
CPC分类号： C04B18/167 , C04B18/04 , C04B28/02 , E04C3/30 , E04C3/34 , E04C3/36 , Y02W30/95 , C04B14/48 , C04B32/02
摘要： An axial compression steel tubular column with internal local restraint and filled with high strengthen compound concrete containing normal-strength demolished concrete lumps and a construction process. The axial compression column includes a steel tube (1), high-strength fresh concrete (2), normal-strength demolished concrete lumps (3), a spiral stirrup (4), and longitudinal erection bars (6). The spiral stirrup (4) is arranged at a middle part inside the steel tube (1). The high-strength fresh concrete (2) is poured and the normal-strength demolished concrete lumps (3) are put alternately inside the steel tube (1). A compressive strength of the high-strength fresh concrete (2) is 30˜90 MPa greater than that of the normal-strength demolished concrete lumps (3).
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公开(公告)号：US20170314268A1
公开(公告)日：2017-11-02
申请号：US15522776
申请日：2014-12-03
发明人： Bo WU , Simin JIAN
摘要： An I-shaped steel with discontinuous top flange reinforced compound concrete beam containing demolished concrete lumps and a construction process thereof. The beam comprises an I-shaped steel having discontinuous top flange, longitudinal bars (7), stirrups (6), waist bars (8), fresh concrete (5), and demolished concrete lumps (4). The I-shaped steel having discontinuous top flange consists of a bottom flange plate (3), a web (2) and a discontinuous top flange plate (I). The discontinuous top flange plate (1) consists of two rectangle steel plates or trapezoid steel plates located at both sides of the I-shaped steel. The two steel plates have a same length that is one third of a length of the I-shaped steel. The trapezoid steel plate has a width of a short side no less than a quarter of a width of the long side. The recycled compound concrete beam saves steel, fully uses the demolished concrete lumps, and is convenient to construct.
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公开(公告)号：US20220033303A1
公开(公告)日：2022-02-03
申请号：US17279610
申请日：2019-10-31
发明人： Bo WU , Huixuan CAO
摘要： The present invention discloses cement mortar containing excavated soil prepared by replacing natural sand with engineering soil, and a preparation method therefor and an application thereof. The preparation method includes drying and grinding waste engineering soil taken from a construction site first, sieving and mixing it to form recycled engineering soil, and putting the recycled engineering soil and natural sand into a mortar mixer according to a certain proportion to form a sandy soil mixture; then pouring water and cement into the mortar mixer, adding a part of the sandy soil mixture and a part of a water-reducing admixture, and evenly stirring; and finally, adding the remaining sandy soil mixture and water-reducing admixture, and evenly stirring to obtain the cement mortar containing excavated soil.
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5.发明申请公开(公告)号：US20180340334A1
公开(公告)日：2018-11-29
申请号：US16056384
申请日：2018-08-06
发明人： Bo WU , Simin JIAN
摘要： A method of construction process of a reinforced compound concrete beam containing demolished concrete lumps comprising following steps. Form an I-shaped steel member with a discontinuous top flange by welding a bottom flange plate, a web and two steel plates. Set up a bottom die of the reinforced compound concrete beam. After hoisting the I-shaped steel member with the discontinuous top flange in position, bind longitudinal bars, waist bars and stirrups, and finally set up a side die. (2) Wet the demolished concrete lumps, pour the fresh concrete with a thickness of 20-30 mm inside a cavity formed by the bottom die and the side die, and then put a layer of the wet demolished concrete lumps in a gap between the two steel plates. The two steel plates are two rectangle steel plates or two trapezoid steel plates. Stir artificially so that the demolished concrete lumps are uniformly distributed inside the cavity formed by the bottom die and the side die. Pour a layer of fresh concrete into the cavity and vibrate the demolished concrete lumps and the fresh concrete in the cavity, so that the demolished concrete lumps are uniformly distributed in the fresh concrete. Repeatedly and alternately pour the fresh concrete and the demolished concrete lumps until the cavity is filled.
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公开(公告)号：US20170254083A1
公开(公告)日：2017-09-07
申请号：US15512069
申请日：2014-10-24
发明人： Bo WU , Qiang ZHANG
CPC分类号： E04C3/32 , B28B1/08 , B28B1/16 , C04B18/16 , C04B28/02 , C04B2111/2053 , C04B2201/50 , C04B2201/52 , E04C3/34 , E04C3/36 , E04H9/021
摘要： A seismic steel tubular column with internal local restraint and filled with high strengthen compound concrete containing normal-strength demolished concrete lumps, and a construction process. The seismic column includes a steel tube (1), high-strength fresh concrete (2), normal-strength demolished concrete lumps (3), horizontal stirrups (4), and longitudinal erection bars (5). The horizontal stirrups (4) are arranged at upper and lower ends inside the steel tube (1). The high-strength fresh concrete (2) is poured and the normal-strength demolished concrete lumps (3) are put alternately inside the steel tube (1). A compressive strength of the high-strength fresh concrete (2) is 30˜90 MPa greater than that of the normal-strength demolished concrete lumps (3).
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7.发明公开公开(公告)号：US20230323666A1
公开(公告)日：2023-10-12
申请号：US18024503
申请日：2020-12-31
CPC分类号： E04C3/34 , E04C5/0636 , B28B23/02
摘要： A reinforced recycled block/aggregate concrete precast column and a construction method are provided. The reinforced recycled block/aggregate concrete precast column includes several first one-bar hoops, vertical reinforcement bars, several second one-bar hoops, a flexible hinge area, and recycled block/aggregate concrete; the first one-bar hoops and second one-bar hoops are each provided with an anchor end; the first one-bar hoops and second one-bar hoops are disposed in the flexible hinge area, and only the second one-bar hoops are disposed outside the flexible hinge area; the outer edge of each first one-bar hoop is flush with the outer surface of the reinforced recycled block/aggregate concrete precast column; and the interior of the reinforced recycled block/aggregate concrete precast column is filled with the recycled block/aggregate concrete, thereby greatly increasing the recycling rate of engineering waste, reducing shedding of a concrete protective layer in the flexible hinge area of the column.
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