A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge stand column and segmented stand column prestress construction technology
The invention relates to a bridge stand column and a segmented stand column prestress construction technology, the bridge stand column comprises a bearing platform, a segmented stand column, a prestressing tendon and a guide pipe, and the construction technology comprises the following steps that an anchorage device is installed; the bottom end of the prestressing tendon is connected with the anchorage device, and the prestressing tendon is sleeved with a guide pipe. The segmented stand columns are hoisted section by section till the last section; the guide pipe is removed; the other end of the prestressing tendon is fixed, and prestressing tension is conducted; and grouting and anchor sealing. According to the bridge stand column and the technology, the problems that construction is difficult due to the fact that prestressing tendons are inserted during hoisting of segmented stand columns, and the self-locking success rate and quality are difficult to guarantee due to self-locking type prestressing anchoring are solved, the construction difficulty is effectively lowered, and the construction quality is guaranteed.
本发明涉及一种桥梁立柱及分节立柱预应力施工工艺，桥梁立柱包括：承台、分节立柱、预应力束和导向管，施工工艺包括如下步骤：锚具安装；预应力束底端与锚具连接，且预应力束外套有导向管；逐节吊装分节立柱，直至最后一节；去除导向管；固定预应力束的另一端，并进行预应力张拉；灌浆，封锚。本桥梁立柱及工艺避免了分节立柱吊装时穿插预应力束带来的施工困难以及自锁式预应力锚固难易保证自锁成功率及质量的问题，有效降低了施工难度，保证了施工质量。
Bridge stand column and segmented stand column prestress construction technology
The invention relates to a bridge stand column and a segmented stand column prestress construction technology, the bridge stand column comprises a bearing platform, a segmented stand column, a prestressing tendon and a guide pipe, and the construction technology comprises the following steps that an anchorage device is installed; the bottom end of the prestressing tendon is connected with the anchorage device, and the prestressing tendon is sleeved with a guide pipe. The segmented stand columns are hoisted section by section till the last section; the guide pipe is removed; the other end of the prestressing tendon is fixed, and prestressing tension is conducted; and grouting and anchor sealing. According to the bridge stand column and the technology, the problems that construction is difficult due to the fact that prestressing tendons are inserted during hoisting of segmented stand columns, and the self-locking success rate and quality are difficult to guarantee due to self-locking type prestressing anchoring are solved, the construction difficulty is effectively lowered, and the construction quality is guaranteed.
本发明涉及一种桥梁立柱及分节立柱预应力施工工艺，桥梁立柱包括：承台、分节立柱、预应力束和导向管，施工工艺包括如下步骤：锚具安装；预应力束底端与锚具连接，且预应力束外套有导向管；逐节吊装分节立柱，直至最后一节；去除导向管；固定预应力束的另一端，并进行预应力张拉；灌浆，封锚。本桥梁立柱及工艺避免了分节立柱吊装时穿插预应力束带来的施工困难以及自锁式预应力锚固难易保证自锁成功率及质量的问题，有效降低了施工难度，保证了施工质量。
Bridge stand column and segmented stand column prestress construction technology
一种桥梁立柱及分节立柱预应力施工工艺
WANG JIACHENG (author) / TANG WENJUN (author) / YANG RENWEI (author) / LI RONGSHUAI (author) / LI WENQIANG (author) / ZHANG CHAO (author) / WANG SHIKUN (author) / WANG FEI (author)
2024-02-13
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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