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A platform for research: civil engineering, architecture and urbanism
Jacking and heightening method for single-column large cantilever bent cap
The invention provides a jacking and heightening method for a single-column large cantilever bent cap, and belongs to the technical field of building construction, and the jacking and heightening method comprises the following steps: S1, cleaning covering soil at the position of a bearing platform, and exposing the side surface of the bearing platform; s2, steel bars are planted on the side face of the bearing platform, and the bearing platform is constructed and expanded; s3, a beam bottom support and a hoop beam formwork are installed below the bent cap, and hoop beam construction is conducted in the circumferential direction of the pier column; s4, after construction of the hoop beam is completed, the hoop beam formwork and the beam bottom support are dismantled; s5, steel pipe columns and jacking equipment are installed on the bearing platform; s6, the pier column is cut off, and an upper pier column and a lower pier column are formed; s7, jacking equipment is controlled, the hoop beam is jacked, and the upper pier column and the cover beam are jacked circularly; s8, pier column heightening; s9, the hoop beam is dismantled; and S10, the jacking equipment and the steel pipe column are dismantled. The hoop beam is constructed at the bottom of the cover beam, the bottom of the cover beam is supported, the steel pipe columns and the jacking equipment are arranged on the periphery of the outer side of the pier column on the lower portion of the hoop beam, the stress of the cover beam is basically consistent with the normal stress during jacking, the cracking phenomenon is avoided, and the engineering quality is guaranteed.
本发明提出了一种独柱大悬臂盖梁的顶升加高方法，属于建筑施工技术领域，包括如下步骤：S1：清理承台位置覆土，露出承台侧面；S2：在承台侧面植筋，施工扩大承台；S3：在盖梁下方，安装梁底支架及抱箍梁模板，于墩柱周向进行抱箍梁施工；S4：抱箍梁施工完成后，拆除抱箍梁模板及梁底支架；S5：在承台上安装钢管柱和顶升设备；S6：截断墩柱，形成上墩柱和下墩柱；S7：操控顶升设备，顶升抱箍梁，将上墩柱以及盖梁循环顶升；S8：墩柱接高；S9：拆除抱箍梁；S10：拆除顶升设备及钢管柱。在盖梁底部施工抱箍梁，托住盖梁底部，在抱箍梁下部墩柱外侧四周布置钢管柱及顶升设备，顶升时盖梁受力和正常受力基本一致，不会发生开裂现象，保证了工程质量。
Jacking and heightening method for single-column large cantilever bent cap
The invention provides a jacking and heightening method for a single-column large cantilever bent cap, and belongs to the technical field of building construction, and the jacking and heightening method comprises the following steps: S1, cleaning covering soil at the position of a bearing platform, and exposing the side surface of the bearing platform; s2, steel bars are planted on the side face of the bearing platform, and the bearing platform is constructed and expanded; s3, a beam bottom support and a hoop beam formwork are installed below the bent cap, and hoop beam construction is conducted in the circumferential direction of the pier column; s4, after construction of the hoop beam is completed, the hoop beam formwork and the beam bottom support are dismantled; s5, steel pipe columns and jacking equipment are installed on the bearing platform; s6, the pier column is cut off, and an upper pier column and a lower pier column are formed; s7, jacking equipment is controlled, the hoop beam is jacked, and the upper pier column and the cover beam are jacked circularly; s8, pier column heightening; s9, the hoop beam is dismantled; and S10, the jacking equipment and the steel pipe column are dismantled. The hoop beam is constructed at the bottom of the cover beam, the bottom of the cover beam is supported, the steel pipe columns and the jacking equipment are arranged on the periphery of the outer side of the pier column on the lower portion of the hoop beam, the stress of the cover beam is basically consistent with the normal stress during jacking, the cracking phenomenon is avoided, and the engineering quality is guaranteed.
本发明提出了一种独柱大悬臂盖梁的顶升加高方法，属于建筑施工技术领域，包括如下步骤：S1：清理承台位置覆土，露出承台侧面；S2：在承台侧面植筋，施工扩大承台；S3：在盖梁下方，安装梁底支架及抱箍梁模板，于墩柱周向进行抱箍梁施工；S4：抱箍梁施工完成后，拆除抱箍梁模板及梁底支架；S5：在承台上安装钢管柱和顶升设备；S6：截断墩柱，形成上墩柱和下墩柱；S7：操控顶升设备，顶升抱箍梁，将上墩柱以及盖梁循环顶升；S8：墩柱接高；S9：拆除抱箍梁；S10：拆除顶升设备及钢管柱。在盖梁底部施工抱箍梁，托住盖梁底部，在抱箍梁下部墩柱外侧四周布置钢管柱及顶升设备，顶升时盖梁受力和正常受力基本一致，不会发生开裂现象，保证了工程质量。
Jacking and heightening method for single-column large cantilever bent cap
一种独柱大悬臂盖梁的顶升加高方法
LI CHAO (author) / HU SAIJUN (author) / PENG ZHAOBIN (author) / ZHU XIAOTIAN (author) / HOU JIAN (author) / LI HONGHONG (author) / LEE SU DONG (author) / TAKAI MAMORU (author) / CHEN LIWEI (author) / LI XUEQIANG (author)
2023-07-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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