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Connecting structure for newly-added cantilever steel beam to be supported on existing concrete beam and slab structure
The invention discloses a connecting structure for supporting a newly-added cantilever steel beam on an existing concrete beam slab structure, the connecting structure comprises the existing concrete beam and the newly-added cantilever steel beam, the newly-added cantilever steel beam is supported on the outer side face of the existing concrete beam, an upper flange plate of the newly-added cantilever steel beam extends towards the inner side direction of the existing concrete beam to form an upper flange plate extension section, and a lower flange plate of the newly-added cantilever steel beam extends towards the outer side face of the existing concrete beam to form a lower flange plate extension section. The extension section of the upper flange plate is connected with an existing concrete inner side beam or a newly added inner side steel beam on the inner side of the existing concrete beam through a sheared anchor bolt; the newly-added inner side steel beam is arranged at the bottom of an existing concrete plate on the inner side of the existing concrete beam, and the shear anchor bolt sequentially penetrates through an upper flange plate of the newly-added inner side steel beam and the existing concrete plate and then is connected with an extension section of the upper flange plate of the newly-added cantilever steel beam in a penetrating and plug welding mode. The extension section of the upper flange plate of the newly-added cantilever steel beam transmits the pulling force borne by the upper flange plate of the newly-added cantilever steel beam to the existing concrete beam plate structure, the problem that the bending moment of the root of the newly-added cantilever steel beam is large is solved, and the cantilever span and the bearing capacity of the newly-added cantilever steel beam are improved.
本发明公开一种新增悬挑钢梁支承于既有混凝土梁板结构的连接结构，包括既有混凝土梁和新增悬挑钢梁，新增悬挑钢梁支承于既有混凝土梁的外侧面上，新增悬挑钢梁的上翼缘板向既有混凝土梁的内侧方向延伸形成上翼缘板延伸段，上翼缘板延伸段通过受剪锚栓与既有混凝土梁内侧的既有混凝土内侧梁或新增内侧钢梁连接；新增内侧钢梁设置在既有混凝土梁内侧的既有混凝土板底部，受剪锚栓依次穿过新增内侧钢梁的上翼缘板和既有混凝土板后与新增悬挑钢梁的上翼缘板延伸段穿孔塞焊连接；新增悬挑钢梁的上翼缘板延伸段将新增悬挑钢梁上翼缘板承受的拉力传递给既有混凝土梁板结构，解决了新增悬挑钢梁根部弯矩较大的问题，提升新增悬挑钢梁悬挑跨度和承载能力。
Connecting structure for newly-added cantilever steel beam to be supported on existing concrete beam and slab structure
The invention discloses a connecting structure for supporting a newly-added cantilever steel beam on an existing concrete beam slab structure, the connecting structure comprises the existing concrete beam and the newly-added cantilever steel beam, the newly-added cantilever steel beam is supported on the outer side face of the existing concrete beam, an upper flange plate of the newly-added cantilever steel beam extends towards the inner side direction of the existing concrete beam to form an upper flange plate extension section, and a lower flange plate of the newly-added cantilever steel beam extends towards the outer side face of the existing concrete beam to form a lower flange plate extension section. The extension section of the upper flange plate is connected with an existing concrete inner side beam or a newly added inner side steel beam on the inner side of the existing concrete beam through a sheared anchor bolt; the newly-added inner side steel beam is arranged at the bottom of an existing concrete plate on the inner side of the existing concrete beam, and the shear anchor bolt sequentially penetrates through an upper flange plate of the newly-added inner side steel beam and the existing concrete plate and then is connected with an extension section of the upper flange plate of the newly-added cantilever steel beam in a penetrating and plug welding mode. The extension section of the upper flange plate of the newly-added cantilever steel beam transmits the pulling force borne by the upper flange plate of the newly-added cantilever steel beam to the existing concrete beam plate structure, the problem that the bending moment of the root of the newly-added cantilever steel beam is large is solved, and the cantilever span and the bearing capacity of the newly-added cantilever steel beam are improved.
本发明公开一种新增悬挑钢梁支承于既有混凝土梁板结构的连接结构，包括既有混凝土梁和新增悬挑钢梁，新增悬挑钢梁支承于既有混凝土梁的外侧面上，新增悬挑钢梁的上翼缘板向既有混凝土梁的内侧方向延伸形成上翼缘板延伸段，上翼缘板延伸段通过受剪锚栓与既有混凝土梁内侧的既有混凝土内侧梁或新增内侧钢梁连接；新增内侧钢梁设置在既有混凝土梁内侧的既有混凝土板底部，受剪锚栓依次穿过新增内侧钢梁的上翼缘板和既有混凝土板后与新增悬挑钢梁的上翼缘板延伸段穿孔塞焊连接；新增悬挑钢梁的上翼缘板延伸段将新增悬挑钢梁上翼缘板承受的拉力传递给既有混凝土梁板结构，解决了新增悬挑钢梁根部弯矩较大的问题，提升新增悬挑钢梁悬挑跨度和承载能力。
Connecting structure for newly-added cantilever steel beam to be supported on existing concrete beam and slab structure
一种新增悬挑钢梁支承于既有混凝土梁板结构的连接结构
CHEN DAHAO (author) / WANG JIE (author) / HEO JOON (author) / CHEN GUOQIANG (author) / WEI DAPING (author)
2023-12-01
Patent
Electronic Resource
Chinese
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