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1.发明申请公开(公告)号：US20210039282A1
公开(公告)日：2021-02-11
申请号：US16475866
申请日：2018-08-24
Abstract: Disclosed is a method of preparing a flexible deformable photonic crystal material for structural health monitoring, comprising the following steps: washing a grating master template; preparing and assembling a mold; obtaining an assembled mold by printing a three-dimensional mold comprising an upper die and a lower die by use of a 3D printing device and installing the grating master template on the three-dimensional mold; obtaining a polydimethylsiloxane (PDMS) one-dimensional photonic crystal film by replicating a one-dimensional grating structure of a surface of the grating master template by pouring PDMS into the assembled mold; finally, obtaining the PDMS one-dimensional photonic crystal film with a one-dimensional photonic crystal structure on a middle surface and protrusion structures at both ends by demolding, wherein the PDMS one-dimensional photonic crystal film is the flexible deformable photonic crystal material. A mechanochromic photonic crystal film is prepared by using a master template with a photonic crystal structure, a process is simple and easy to operate, a preparation period of a mechanochromic material is greatly shortened, and a preparation cost is reduced.
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公开(公告)号：US20200024818A1
公开(公告)日：2020-01-23
申请号：US16489615
申请日：2018-06-26
Applicant: SHANDONG UNIVERSITY
Inventor： Hetao HOU , Ning WANG , Bing SUN , Haiyang LI , Mingjun LI
Abstract: A pulling-out device for a prefabricated concrete support wall, belonging to the field of concrete support structures, wherein a vertical hollow tube is pre-buried in the prefabricated concrete support wall. The pulling-out device includes a pulling-out mechanism disposed in the hollow tube by penetration, the lower end of the pulling-out mechanism is fixedly arranged in the prefabricated concrete support wall and positioned at the lower end of the hollow tube, a first fixing device for tensing the pulling-out mechanism is arranged at the upper end of the pulling-out mechanism, and the first fixing device is not connected with the prefabricated concrete support wall.
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公开(公告)号：US20200240144A1
公开(公告)日：2020-07-30
申请号：US16489941
申请日：2018-06-26
Applicant: SHANDONG UNIVERSITY
Inventor： Hetao HOU , Ning WANG , Haiyang LI , Bing SUN , Kefan JI , Jianliang LUO
Abstract: A prefabricated prestressed thermal-insulated exterior wall board and a light weight composite thermal-insulated exterior wall board include a thermal-insulated core board, a reinforcement mesh on both sides of the thermal-insulated core board, and a concrete layer cast on the reinforcement mesh, and the thermal-insulated core board includes a plurality of throughout-length thermal-insulated core board ribs, and the concrete layer includes a plurality of concrete ribs interlaced with and matching the thermal-insulated core board ribs, a shear-resistant connection members connected with the reinforcement mesh is inserted between the adjacent thermal-insulated core board ribs, and prestressed tendons are disposed in grooves formed between the adjacent thermal-insulated core board ribs and grooves formed between the adjacent concrete ribs in the prefabricated prestressed thermal-insulated exterior wall board.
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