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A platform for research: civil engineering, architecture and urbanism
Joint structure of superposed beam and column with UHPC (Ultra High Performance Concrete) reinforcing block and construction method of joint structure
The invention discloses a superposed beam and column joint structure with UHPC reinforcing blocks and a construction method of the superposed beam and column joint structure. The superposed beam and column joint structure comprises prefabricated columns, superposed beams, the UHPC reinforcing blocks, fiber high-strength shrinkage-free grouting materials and post-tensioned prestressed tendons. A first hole channel is formed in the prefabricated column; a second hole channel is formed in the precast beam part; notches are formed in the bottoms of the ends, close to the prefabricated columns, of the prefabricated beams; the top surface edge of the gap is provided with a raised line; the UHPC reinforcing block is arranged at the notch; a first groove is formed in the end face of the side, close to the prefabricated column, of the UHPC reinforcing block. The fiber high-strength shrinkage-free grouting material is filled in a gap between the UHPC reinforcing block and the prefabricated column; a third hole channel is formed in the UHPC reinforcing block; the post-tensioned prestressed tendons correspondingly penetrate through the first hole channels, the second hole channels and the third hole channels, and second grooves are formed in the middles of the top faces of the UHPC reinforcing blocks in the width direction of the beam. And the raised line is inserted into one side in the second groove. The technical problem that beam end concrete in a traditional prestressed beam-column joint has the risk of crushing is solved.
一种带有UHPC加强块的叠合梁与柱的节点结构及其施工方法，包括预制柱、叠合梁、UHPC加强块、纤维高强无收缩灌浆料和后张预应力筋；预制柱内设有第一孔道；预制梁部分内设有第二孔道；预制梁部分靠近预制柱一端底部设有缺口；缺口顶面边缘设有凸条；UHPC加强块设在缺口处；UHPC加强块靠近预制柱一侧端面设有第一凹槽；纤维高强无收缩灌浆料灌在UHPC加强块与预制柱间隙中；UHPC加强块内设有第三孔道；后张预应力筋对应穿设在第一孔道、第二孔道和第三孔道内，UHPC加强块的顶面中部、沿梁的宽度方向设有第二凹槽；凸条插设在第二凹槽内的一侧。本发明解决了传统的预应力梁柱节点中梁端混凝土会有压溃的危险的技术问题。
Joint structure of superposed beam and column with UHPC (Ultra High Performance Concrete) reinforcing block and construction method of joint structure
The invention discloses a superposed beam and column joint structure with UHPC reinforcing blocks and a construction method of the superposed beam and column joint structure. The superposed beam and column joint structure comprises prefabricated columns, superposed beams, the UHPC reinforcing blocks, fiber high-strength shrinkage-free grouting materials and post-tensioned prestressed tendons. A first hole channel is formed in the prefabricated column; a second hole channel is formed in the precast beam part; notches are formed in the bottoms of the ends, close to the prefabricated columns, of the prefabricated beams; the top surface edge of the gap is provided with a raised line; the UHPC reinforcing block is arranged at the notch; a first groove is formed in the end face of the side, close to the prefabricated column, of the UHPC reinforcing block. The fiber high-strength shrinkage-free grouting material is filled in a gap between the UHPC reinforcing block and the prefabricated column; a third hole channel is formed in the UHPC reinforcing block; the post-tensioned prestressed tendons correspondingly penetrate through the first hole channels, the second hole channels and the third hole channels, and second grooves are formed in the middles of the top faces of the UHPC reinforcing blocks in the width direction of the beam. And the raised line is inserted into one side in the second groove. The technical problem that beam end concrete in a traditional prestressed beam-column joint has the risk of crushing is solved.
一种带有UHPC加强块的叠合梁与柱的节点结构及其施工方法，包括预制柱、叠合梁、UHPC加强块、纤维高强无收缩灌浆料和后张预应力筋；预制柱内设有第一孔道；预制梁部分内设有第二孔道；预制梁部分靠近预制柱一端底部设有缺口；缺口顶面边缘设有凸条；UHPC加强块设在缺口处；UHPC加强块靠近预制柱一侧端面设有第一凹槽；纤维高强无收缩灌浆料灌在UHPC加强块与预制柱间隙中；UHPC加强块内设有第三孔道；后张预应力筋对应穿设在第一孔道、第二孔道和第三孔道内，UHPC加强块的顶面中部、沿梁的宽度方向设有第二凹槽；凸条插设在第二凹槽内的一侧。本发明解决了传统的预应力梁柱节点中梁端混凝土会有压溃的危险的技术问题。
Joint structure of superposed beam and column with UHPC (Ultra High Performance Concrete) reinforcing block and construction method of joint structure
带有UHPC加强块的叠合梁与柱的节点结构及其施工方法
GUO HAISHAN (author) / ZHANG YUNFENG (author) / SHI PENGFEI (author)
2023-07-11
Patent
Electronic Resource
Chinese
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