A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Replacement construction method for existing daylighting roof under normal operation condition
The invention relates to an existing daylighting roof replacement construction method under normal operation conditions. Comprising the steps that a beam string structure high-altitude operation platform is installed between structural columns; a tensioning lifting lug and a hoisting lifting lug are welded to the top of the main beam; beveled openings are cut in the midspan of the main beam; enabling the main beam left section and the main beam right section to generate vertical deformation, and naturally forming a staggered joint; when a new daylighting roof structure is installed, a crane is used for installing a right section of a new main beam, and a stay cable is connected and tensioned; and removing the temporary cable-stayed measure, tensioning the lifting lug, hoisting the lifting lug, the jack and the L-shaped steel plate, and installing new daylighting roof glass at the top of the new daylighting roof structure. According to the construction method, by setting a pre-tensioning measure at the end of the steel beam and setting a damping measure for delaying fracture dislocation development in the midspan of the steel beam, internal force conversion and deformation of the daylighting roof steel beam in the dismantling process are effectively controlled, the construction process is safe and controllable, and the installation process and the dismantling process of a new daylighting roof are opposite.
本发明是一种正常运营条件下的既有采光顶更换施工方法；包括：在结构柱之间安装张弦梁高空操作平台；在主梁顶部焊接张拉吊耳和吊装吊耳；主梁在跨中切斜口；使主梁左分段和主梁右分段产生竖向形变，自然形成错口；在安装新采光顶结构时，吊机安装新主梁右分段，连接斜拉索并拉紧；拆除临时斜拉措施、张拉吊耳和吊装吊耳、千斤顶和L型钢板，在新采光顶结构顶部安装新采光顶玻璃。该施工方法通过在钢梁端部设置预张紧措施以及在钢梁跨中设置延缓断口错位发展的阻尼措施，有效控制了采光顶钢梁在拆除过程中的内力转换和变形，施工过程安全可控，而新采光顶的安装流程与拆除流程相反。
Replacement construction method for existing daylighting roof under normal operation condition
The invention relates to an existing daylighting roof replacement construction method under normal operation conditions. Comprising the steps that a beam string structure high-altitude operation platform is installed between structural columns; a tensioning lifting lug and a hoisting lifting lug are welded to the top of the main beam; beveled openings are cut in the midspan of the main beam; enabling the main beam left section and the main beam right section to generate vertical deformation, and naturally forming a staggered joint; when a new daylighting roof structure is installed, a crane is used for installing a right section of a new main beam, and a stay cable is connected and tensioned; and removing the temporary cable-stayed measure, tensioning the lifting lug, hoisting the lifting lug, the jack and the L-shaped steel plate, and installing new daylighting roof glass at the top of the new daylighting roof structure. According to the construction method, by setting a pre-tensioning measure at the end of the steel beam and setting a damping measure for delaying fracture dislocation development in the midspan of the steel beam, internal force conversion and deformation of the daylighting roof steel beam in the dismantling process are effectively controlled, the construction process is safe and controllable, and the installation process and the dismantling process of a new daylighting roof are opposite.
本发明是一种正常运营条件下的既有采光顶更换施工方法；包括：在结构柱之间安装张弦梁高空操作平台；在主梁顶部焊接张拉吊耳和吊装吊耳；主梁在跨中切斜口；使主梁左分段和主梁右分段产生竖向形变，自然形成错口；在安装新采光顶结构时，吊机安装新主梁右分段，连接斜拉索并拉紧；拆除临时斜拉措施、张拉吊耳和吊装吊耳、千斤顶和L型钢板，在新采光顶结构顶部安装新采光顶玻璃。该施工方法通过在钢梁端部设置预张紧措施以及在钢梁跨中设置延缓断口错位发展的阻尼措施，有效控制了采光顶钢梁在拆除过程中的内力转换和变形，施工过程安全可控，而新采光顶的安装流程与拆除流程相反。
Replacement construction method for existing daylighting roof under normal operation condition
正常运营条件下的既有采光顶更换施工方法
CHEN HUI (author) / ZHAO RONGYAO (author) / HUANG QIANG (author) / YANG YONG (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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