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Variable-rigidity wood beam, building structure and preparation method
The invention discloses a variable-rigidity wood beam, a building structure and a preparation method, and belongs to the field of civil engineering, a combined wood beam with a large height-span ratio is formed by superposing multiple layers of flat wood plate sheets, and the combination effect between the superposing flat beams is achieved through (1) primary and secondary hook and loop fasteners (HOOKamp; lOOP, (2) sealing plates at the two ends of the laminated wood beam, (3) FRP composite material hoops on the laminated wood beam and the like, that is, the function similar to a shear key of a combined beam is provided through the structures, so that complete or partial shear connection between the laminated beams is formed; according to the variable-rigidity wood beam provided by the invention, under a large earthquake, the FRP composite material hoop and the sealing plates at the two ends deform and lose efficacy, meanwhile, the primary and secondary hook-and-loop fasteners slip, and the combination effect between the laminated layers loses efficacy, so that the rigidity of the combined beam is reduced, and the variable-rigidity wood beam can adapt to the large deformation requirement under the large earthquake without causing fracture at the wood beam or a joint.
本发明公开了一种可变刚度木梁、建筑结构和制备方法,属于土木工程领域,通过多层扁木板片材的叠合构成大高跨比的组合木梁,各层叠合扁梁之间的组合作用通过(1)叠合层的子母粘扣带(HOOK&LOOP)、(2)叠合木梁的两端封板和(3)叠合木梁上的FRP复合材料环箍等构造实现,即通过上述构造提供类似组合梁抗剪键的功能以形成叠合梁之间的完全或部分剪切连接;本发明提供的可变刚度木梁,在大震下,FRP复合材料环箍和两端封板变形失效,同时子母粘扣带发生滑移,叠层间组合作用失效,使得组合梁刚度折减,能适应大震下的大变形需要而不致木梁或者节点处产生折断。
Variable-rigidity wood beam, building structure and preparation method
The invention discloses a variable-rigidity wood beam, a building structure and a preparation method, and belongs to the field of civil engineering, a combined wood beam with a large height-span ratio is formed by superposing multiple layers of flat wood plate sheets, and the combination effect between the superposing flat beams is achieved through (1) primary and secondary hook and loop fasteners (HOOKamp; lOOP, (2) sealing plates at the two ends of the laminated wood beam, (3) FRP composite material hoops on the laminated wood beam and the like, that is, the function similar to a shear key of a combined beam is provided through the structures, so that complete or partial shear connection between the laminated beams is formed; according to the variable-rigidity wood beam provided by the invention, under a large earthquake, the FRP composite material hoop and the sealing plates at the two ends deform and lose efficacy, meanwhile, the primary and secondary hook-and-loop fasteners slip, and the combination effect between the laminated layers loses efficacy, so that the rigidity of the combined beam is reduced, and the variable-rigidity wood beam can adapt to the large deformation requirement under the large earthquake without causing fracture at the wood beam or a joint.
本发明公开了一种可变刚度木梁、建筑结构和制备方法,属于土木工程领域,通过多层扁木板片材的叠合构成大高跨比的组合木梁,各层叠合扁梁之间的组合作用通过(1)叠合层的子母粘扣带(HOOK&LOOP)、(2)叠合木梁的两端封板和(3)叠合木梁上的FRP复合材料环箍等构造实现,即通过上述构造提供类似组合梁抗剪键的功能以形成叠合梁之间的完全或部分剪切连接;本发明提供的可变刚度木梁,在大震下,FRP复合材料环箍和两端封板变形失效,同时子母粘扣带发生滑移,叠层间组合作用失效,使得组合梁刚度折减,能适应大震下的大变形需要而不致木梁或者节点处产生折断。
Variable-rigidity wood beam, building structure and preparation method
一种可变刚度木梁、建筑结构和制备方法
FANG LIXIN (Autor:in) / SUN XUN (Autor:in) / LING ZHUOZHUO (Autor:in) / LI JIAN (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
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