Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bracket-free suspension splicing construction method for large-cantilever sectional type prefabricated bent cap
The invention relates to a support-free cantilever splicing construction method for a large-cantilever sectional type prefabricated cover beam, a crane is adopted for hoisting on site, constructors go up and down through a ladder truck and a customized ladder cage, the prefabricated cover beam comprises two pier top sections, two cantilever sections I and two cantilever sections II, the pier top sections are fixedly arranged on prefabricated stand columns, and the two cantilever sections I are fixedly arranged on the prefabricated stand columns. The pier top section, the cantilever section I and the cantilever section II are sequentially arranged from the middle to the two sides, the pier top section is installed firstly, then the cantilever section I is installed, finally the cantilever section II is installed, all the sections are symmetrically installed, and if the pier top section is installed on one side and then the pier top section is installed on the other side in time. The method has the beneficial effects that the gravity center of the prefabricated bent cap pier top section coincides with the gravity center of the lower stand column in position, temporary fixing measures such as a bracket need to be adopted when the pier top section is installed are avoided, and the installation overturning risk and cost are reduced; the adjusting time of formal installation is shortened through trial assembly, and the bonding quality of the mortar cushion layer is improved.
本发明涉及一种大悬臂分段式预制盖梁无支架悬拼施工方法，现场采用一台吊车进行吊装，施工人员通过登高车及定制梯笼上下，预制盖梁包括两个墩顶段、两个悬臂段Ⅰ和两个悬臂段Ⅱ，墩顶段固定设置在预制立柱上，墩顶段、悬臂段Ⅰ和悬臂段Ⅱ由中间向两侧依次布置，先安装墩顶段，再安装悬臂段Ⅰ，最后安装悬臂段Ⅱ，各节段对称安装，如一侧安装墩顶段后另一侧应及时安装墩顶段。本发明产生的有益效果是：预制盖梁墩顶段重心与下部立柱重心位置重合，避免了墩顶段安装时需采用托架等临时固定措施，降低了安装倾覆风险及成本；试拼装缩短了正式安装的调节时间，提高了砂浆垫层粘结质量。
Bracket-free suspension splicing construction method for large-cantilever sectional type prefabricated bent cap
The invention relates to a support-free cantilever splicing construction method for a large-cantilever sectional type prefabricated cover beam, a crane is adopted for hoisting on site, constructors go up and down through a ladder truck and a customized ladder cage, the prefabricated cover beam comprises two pier top sections, two cantilever sections I and two cantilever sections II, the pier top sections are fixedly arranged on prefabricated stand columns, and the two cantilever sections I are fixedly arranged on the prefabricated stand columns. The pier top section, the cantilever section I and the cantilever section II are sequentially arranged from the middle to the two sides, the pier top section is installed firstly, then the cantilever section I is installed, finally the cantilever section II is installed, all the sections are symmetrically installed, and if the pier top section is installed on one side and then the pier top section is installed on the other side in time. The method has the beneficial effects that the gravity center of the prefabricated bent cap pier top section coincides with the gravity center of the lower stand column in position, temporary fixing measures such as a bracket need to be adopted when the pier top section is installed are avoided, and the installation overturning risk and cost are reduced; the adjusting time of formal installation is shortened through trial assembly, and the bonding quality of the mortar cushion layer is improved.
本发明涉及一种大悬臂分段式预制盖梁无支架悬拼施工方法，现场采用一台吊车进行吊装，施工人员通过登高车及定制梯笼上下，预制盖梁包括两个墩顶段、两个悬臂段Ⅰ和两个悬臂段Ⅱ，墩顶段固定设置在预制立柱上，墩顶段、悬臂段Ⅰ和悬臂段Ⅱ由中间向两侧依次布置，先安装墩顶段，再安装悬臂段Ⅰ，最后安装悬臂段Ⅱ，各节段对称安装，如一侧安装墩顶段后另一侧应及时安装墩顶段。本发明产生的有益效果是：预制盖梁墩顶段重心与下部立柱重心位置重合，避免了墩顶段安装时需采用托架等临时固定措施，降低了安装倾覆风险及成本；试拼装缩短了正式安装的调节时间，提高了砂浆垫层粘结质量。
Bracket-free suspension splicing construction method for large-cantilever sectional type prefabricated bent cap
一种大悬臂分段式预制盖梁无支架悬拼施工方法
WU JINGJIANG (Autor:in) / YAO BING (Autor:in) / LYU CHUN (Autor:in) / SUN HONGBIN (Autor:in) / LIU JIAN (Autor:in) / ZHANG YONG (Autor:in) / ZHANG JIGUANG (Autor:in) / CHEN KUNPENG (Autor:in) / YUE MENG (Autor:in) / QIAN YUHANG (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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