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A platform for research: civil engineering, architecture and urbanism
Novel underpinning device of existing structure and construction method of novel underpinning device
According to the novel underpinning device of the existing structure and the construction method of the novel underpinning device, a vertical supporting form is adjusted into a space inclined supporting form, a supporting head is arranged through an axial force servo system, the supporting head supports a structural plate through a bearing beam, and underpinning is conducted through loading and unloading of the supporting head. The bracket is formed by welding a cross beam, an inclined strut and a vertical strut, is installed on the side wall through fixing bolts and is erected in a layered and segmented mode according to the underpinning range. The problem of underpinning during transformation of an existing structure is solved, the bracket is erected on the existing side wall, damage to a platform plate within the temporary vertical supporting range is avoided, the space for pedestrians below can be reserved by adjusting the height and width of a bracket platform, transformation and dismantling work on an existing pipeline is reduced, and the influence on operation is reduced to the maximum extent; in addition, aiming at the problem that temporary supporting columns cannot be erected in a penetrating mode when an upper-layer structure is transformed, and internal force transmission is not facilitated, the problem can be effectively solved by introducing a bracket system and transmitting the internal force of the transformation range structure to the existing side walls on the two sides.
本发明公开了一种新型既有结构的托换装置及其施工方法，将竖向支撑形式调整为空间斜撑形式，通过轴力伺服系统支撑头，支撑头通过承载梁对结构板进行支撑，利用支撑头的加卸载进行托换。托架通过横梁、斜撑及竖撑焊接而成，通过固定螺栓安装在侧墙上，根据托换范围分层分段架设。解决了既有结构改造时的托换问题，托架于既有侧墙上架设，避免了对临时竖撑范围内站台板的损坏，通过调整托架平台高度及宽度，可保留下方行人空间，减少对既有管线的迁改拆除工作，最大限度减小对运营的影响；另外，针对上层结构改造时临时支柱无法贯通架设的问题，不利于内力传递，通过引入托架体系，将改造范围结构内力向两侧既有侧墙传递，能够有效解决该问题。
Novel underpinning device of existing structure and construction method of novel underpinning device
According to the novel underpinning device of the existing structure and the construction method of the novel underpinning device, a vertical supporting form is adjusted into a space inclined supporting form, a supporting head is arranged through an axial force servo system, the supporting head supports a structural plate through a bearing beam, and underpinning is conducted through loading and unloading of the supporting head. The bracket is formed by welding a cross beam, an inclined strut and a vertical strut, is installed on the side wall through fixing bolts and is erected in a layered and segmented mode according to the underpinning range. The problem of underpinning during transformation of an existing structure is solved, the bracket is erected on the existing side wall, damage to a platform plate within the temporary vertical supporting range is avoided, the space for pedestrians below can be reserved by adjusting the height and width of a bracket platform, transformation and dismantling work on an existing pipeline is reduced, and the influence on operation is reduced to the maximum extent; in addition, aiming at the problem that temporary supporting columns cannot be erected in a penetrating mode when an upper-layer structure is transformed, and internal force transmission is not facilitated, the problem can be effectively solved by introducing a bracket system and transmitting the internal force of the transformation range structure to the existing side walls on the two sides.
本发明公开了一种新型既有结构的托换装置及其施工方法，将竖向支撑形式调整为空间斜撑形式，通过轴力伺服系统支撑头，支撑头通过承载梁对结构板进行支撑，利用支撑头的加卸载进行托换。托架通过横梁、斜撑及竖撑焊接而成，通过固定螺栓安装在侧墙上，根据托换范围分层分段架设。解决了既有结构改造时的托换问题，托架于既有侧墙上架设，避免了对临时竖撑范围内站台板的损坏，通过调整托架平台高度及宽度，可保留下方行人空间，减少对既有管线的迁改拆除工作，最大限度减小对运营的影响；另外，针对上层结构改造时临时支柱无法贯通架设的问题，不利于内力传递，通过引入托架体系，将改造范围结构内力向两侧既有侧墙传递，能够有效解决该问题。
Novel underpinning device of existing structure and construction method of novel underpinning device
一种新型既有结构的托换装置及其施工方法
ZHANG CHENMING (author) / ZHANG XIXUN (author) / DONG XIUZHU (author) / YANG LI (author) / LI AIDONG (author) / ZHANG PENG (author) / ZHANG WENTING (author) / LYU BAOWEI (author) / GUO XIANZHAO (author) / SHI DAN (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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