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A platform for research: civil engineering, architecture and urbanism
Construction method of large-span prestressed bent cap
The invention belongs to the technical field of bridge construction, and particularly relates to a large-span prestressed bent cap construction method which comprises the steps that S1, a support is erected on the upper side of a pier stud foundation, a bottom formwork and a side formwork of a bent cap are spliced and assembled to the upper side of the support, and a steel reinforcement framework in the bent cap is fixed; s2, by pressing a pressing plate on the side face of the template, the sealant in the rodless cavity of the pressure box is squeezed into a seam between the templates through a plurality of guide holes, and the seam is filled with the sealant; s3, concrete is poured into the formworks, after the concrete reaches the preset strength, all the formworks and the supports are sequentially dismantled, and then the bent cap can be formed; the sealant is extruded into the joint between the templates through the pressure box and the plurality of guide holes, and the sealant is extruded and filled outwards from the interior of the joint, so that air in the joint can be effectively discharged, the joint can be well filled, the distribution uniformity of the sealant in the joint is improved, and the sealing performance of the templates is improved.
本发明属于桥梁施工技术领域，具体的说是一种大跨径预应力盖梁施工方法，包括S1：在墩柱基础上侧搭设支架，将盖梁的底部模板和侧部模板拼接组装于支架上侧，并固定好盖梁内部的钢筋骨架；S2：通过按压模板侧面的压板，将压力盒无杆腔内部的密封胶通过多个导孔挤入模板之间的接缝中，使得密封胶将接缝进行填充；S3：向模板内部浇筑混凝土，当混凝土达到预定强度后，依次拆除所有模板和支架，即可形成盖梁；通过压力盒和多个导孔将密封胶挤入模板之间的接缝内部，并且是将密封胶从接缝内部向外挤压填充，能够有效排出接缝内部的空气，较好的填补接缝，提高密封胶在接缝内部的分布均匀性，从而提高模板的密封性能。
Construction method of large-span prestressed bent cap
The invention belongs to the technical field of bridge construction, and particularly relates to a large-span prestressed bent cap construction method which comprises the steps that S1, a support is erected on the upper side of a pier stud foundation, a bottom formwork and a side formwork of a bent cap are spliced and assembled to the upper side of the support, and a steel reinforcement framework in the bent cap is fixed; s2, by pressing a pressing plate on the side face of the template, the sealant in the rodless cavity of the pressure box is squeezed into a seam between the templates through a plurality of guide holes, and the seam is filled with the sealant; s3, concrete is poured into the formworks, after the concrete reaches the preset strength, all the formworks and the supports are sequentially dismantled, and then the bent cap can be formed; the sealant is extruded into the joint between the templates through the pressure box and the plurality of guide holes, and the sealant is extruded and filled outwards from the interior of the joint, so that air in the joint can be effectively discharged, the joint can be well filled, the distribution uniformity of the sealant in the joint is improved, and the sealing performance of the templates is improved.
本发明属于桥梁施工技术领域，具体的说是一种大跨径预应力盖梁施工方法，包括S1：在墩柱基础上侧搭设支架，将盖梁的底部模板和侧部模板拼接组装于支架上侧，并固定好盖梁内部的钢筋骨架；S2：通过按压模板侧面的压板，将压力盒无杆腔内部的密封胶通过多个导孔挤入模板之间的接缝中，使得密封胶将接缝进行填充；S3：向模板内部浇筑混凝土，当混凝土达到预定强度后，依次拆除所有模板和支架，即可形成盖梁；通过压力盒和多个导孔将密封胶挤入模板之间的接缝内部，并且是将密封胶从接缝内部向外挤压填充，能够有效排出接缝内部的空气，较好的填补接缝，提高密封胶在接缝内部的分布均匀性，从而提高模板的密封性能。
Construction method of large-span prestressed bent cap
一种大跨径预应力盖梁施工方法
DENG FUPAN (author) / CHEN YUHUI (author) / TIAN SHICHUAN (author) / JIANG CHUANNING (author) / LI WANXUAN (author) / LUO WEI (author) / ZHANG ZUOLANG (author) / ZHOU YU (author) / WANG JIAN (author) / WANG LE (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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