Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Column underpinning method for seismic isolation and reinforcement of existing building
The invention relates to the technical field of existing building structure seismic isolation and reinforcement reconstruction, and discloses a column underpinning method for existing building seismic isolation and reinforcement. By arranging the bearing plate which is tightly connected with the floor slab, the bearing column and the frame beam connected with the bearing column, the bearing plate and the column can be regarded as integral pouring, new concrete and old concrete work together, the overall strength is high, and the phenomenon that an upper structure sinks and cracks after a supporting component is removed can be effectively controlled. The supporting component is arranged, the jacking piece is arranged at the top of the supporting component, the supporting component can jack upwards to enable the load borne by the underpinning column to be transferred to the jacking piece, impact on the supporting system caused by sudden release of high stress when the underpinning column section is cut off is prevented, on the other hand, the jacking piece can enable a floor and a bearing plate to generate upward pre-deformation in the upward jacking process, and the supporting system is prevented from being damaged. Therefore, the final deformation after underpinning is completed under the operation of the method is close to zero. After secondary pouring, the shock insulation support is directly connected to the upper buttress and the lower buttress, so that the phenomenon that the shock insulation support is difficult to connect and operate in the prior art is fundamentally solved.
本申请涉及既有建筑结构隔震加固改造技术领域，出示了一种既有建筑隔震加固的柱托换方法。通过设置承托板，其和楼板、承托柱及与之相连的框架梁四者紧密相连，进而承托板与柱可视为整体浇注，新旧混凝土共同工作，整体强度较高，能够有效控制支撑部件去除后上部结构下沉开裂现象。通过设置支撑部件并在其顶部设置顶起件，其可向上顶升使得托换柱所受荷载向顶起件转移，防止截断托换柱段时突然释放高应力对支撑系统的冲击，另一方面顶起件在向上顶起的过程中可使楼板以及承托板产生向上的预变形，进而使得本方法操作下托换完成后的最终变形接近于零。经过该二次浇筑后，隔震支座将直接连接于上下支墩上，从而从根本上解决了现有技术中隔震支座连接操作困难的现象。
Column underpinning method for seismic isolation and reinforcement of existing building
The invention relates to the technical field of existing building structure seismic isolation and reinforcement reconstruction, and discloses a column underpinning method for existing building seismic isolation and reinforcement. By arranging the bearing plate which is tightly connected with the floor slab, the bearing column and the frame beam connected with the bearing column, the bearing plate and the column can be regarded as integral pouring, new concrete and old concrete work together, the overall strength is high, and the phenomenon that an upper structure sinks and cracks after a supporting component is removed can be effectively controlled. The supporting component is arranged, the jacking piece is arranged at the top of the supporting component, the supporting component can jack upwards to enable the load borne by the underpinning column to be transferred to the jacking piece, impact on the supporting system caused by sudden release of high stress when the underpinning column section is cut off is prevented, on the other hand, the jacking piece can enable a floor and a bearing plate to generate upward pre-deformation in the upward jacking process, and the supporting system is prevented from being damaged. Therefore, the final deformation after underpinning is completed under the operation of the method is close to zero. After secondary pouring, the shock insulation support is directly connected to the upper buttress and the lower buttress, so that the phenomenon that the shock insulation support is difficult to connect and operate in the prior art is fundamentally solved.
本申请涉及既有建筑结构隔震加固改造技术领域，出示了一种既有建筑隔震加固的柱托换方法。通过设置承托板，其和楼板、承托柱及与之相连的框架梁四者紧密相连，进而承托板与柱可视为整体浇注，新旧混凝土共同工作，整体强度较高，能够有效控制支撑部件去除后上部结构下沉开裂现象。通过设置支撑部件并在其顶部设置顶起件，其可向上顶升使得托换柱所受荷载向顶起件转移，防止截断托换柱段时突然释放高应力对支撑系统的冲击，另一方面顶起件在向上顶起的过程中可使楼板以及承托板产生向上的预变形，进而使得本方法操作下托换完成后的最终变形接近于零。经过该二次浇筑后，隔震支座将直接连接于上下支墩上，从而从根本上解决了现有技术中隔震支座连接操作困难的现象。
Column underpinning method for seismic isolation and reinforcement of existing building
一种既有建筑隔震加固的柱托换方法
TAN FUBO (Autor:in) / GONG WENBIAO (Autor:in) / ZHAO PING (Autor:in) / ZHANG QIAN (Autor:in) / GUO WEI (Autor:in) / LIU XIN (Autor:in) / BAI YINGUANG (Autor:in) / LIU XUAN (Autor:in) / XU LIANJUN (Autor:in) / JI ZHONGLIANG (Autor:in)
24.09.2024
Patent
Elektronische Ressource
Chinesisch
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