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A platform for research: civil engineering, architecture and urbanism
Prefabricated assembled bridge and construction method thereof
The invention discloses a prefabricated assembled bridge and a construction method thereof.The prefabricated assembled bridge comprises a supporting mechanism and a prefabricated main beam, the prefabricated main beam is supported on the supporting mechanism, the supporting mechanism comprises a supporting column and a prefabricated cover beam, the prefabricated cover beam comprises a middle cover beam and a cantilever cover beam, the middle cover beam is arranged at the top of the supporting column, and the cantilever cover beam is arranged at the bottom of the supporting column; the two cantilever cover beams are oppositely arranged at the two ends of the middle cover beam in the transverse bridge direction and tensioned through post-tensioned prestressed tendons, the middle cover beam comprises two prefabricated beam pieces spliced in the longitudinal bridge direction, each prefabricated beam piece comprises a prefabricated concrete block and an embedded forward connecting rib, the two transverse ends of each prefabricated concrete block are provided with first shear key teeth respectively, and the two transverse ends of each prefabricated concrete block are provided with second shear key teeth respectively. The pre-embedded forward connecting ribs are arranged on the prefabricated concrete blocks and protrude out of the inner wall faces of the prefabricated concrete blocks. According to the prefabricated assembled bridge, when the middle cover beam is constructed on site, a bottom die does not need to be constructed at the bottom of the body initial blank, a side die does not need to be constructed at the transverse end of the body initial blank, and the construction technology is simple.
本发明公开了一种预制拼装桥梁及其施工方法，包括支撑机构和预制主梁，预制主梁支承在支撑机构上，支撑机构包括支撑柱和预制盖梁，预制盖梁包括中部盖梁和悬臂盖梁，中部盖梁设于支撑柱的顶部，两个悬臂盖梁沿横桥向相对地设于中部盖梁的两端并通过后张预应力筋张紧，中部盖梁包括沿顺桥向拼接的两片预制梁片，预制梁片包括预制混凝土块和预埋预埋顺向连接筋，预制混凝土块的横向两端分别设有第一剪力键齿，预埋预埋顺向连接筋设于预制混凝土块上且凸出于预制混凝土块的内壁面设置。本发明提供的预制拼装桥梁，现场施作中部盖梁时，无需在本体初坯的底部施作底模，无需在本体初坯的横向端部施作侧模，施工工艺简单。
Prefabricated assembled bridge and construction method thereof
The invention discloses a prefabricated assembled bridge and a construction method thereof.The prefabricated assembled bridge comprises a supporting mechanism and a prefabricated main beam, the prefabricated main beam is supported on the supporting mechanism, the supporting mechanism comprises a supporting column and a prefabricated cover beam, the prefabricated cover beam comprises a middle cover beam and a cantilever cover beam, the middle cover beam is arranged at the top of the supporting column, and the cantilever cover beam is arranged at the bottom of the supporting column; the two cantilever cover beams are oppositely arranged at the two ends of the middle cover beam in the transverse bridge direction and tensioned through post-tensioned prestressed tendons, the middle cover beam comprises two prefabricated beam pieces spliced in the longitudinal bridge direction, each prefabricated beam piece comprises a prefabricated concrete block and an embedded forward connecting rib, the two transverse ends of each prefabricated concrete block are provided with first shear key teeth respectively, and the two transverse ends of each prefabricated concrete block are provided with second shear key teeth respectively. The pre-embedded forward connecting ribs are arranged on the prefabricated concrete blocks and protrude out of the inner wall faces of the prefabricated concrete blocks. According to the prefabricated assembled bridge, when the middle cover beam is constructed on site, a bottom die does not need to be constructed at the bottom of the body initial blank, a side die does not need to be constructed at the transverse end of the body initial blank, and the construction technology is simple.
本发明公开了一种预制拼装桥梁及其施工方法，包括支撑机构和预制主梁，预制主梁支承在支撑机构上，支撑机构包括支撑柱和预制盖梁，预制盖梁包括中部盖梁和悬臂盖梁，中部盖梁设于支撑柱的顶部，两个悬臂盖梁沿横桥向相对地设于中部盖梁的两端并通过后张预应力筋张紧，中部盖梁包括沿顺桥向拼接的两片预制梁片，预制梁片包括预制混凝土块和预埋预埋顺向连接筋，预制混凝土块的横向两端分别设有第一剪力键齿，预埋预埋顺向连接筋设于预制混凝土块上且凸出于预制混凝土块的内壁面设置。本发明提供的预制拼装桥梁，现场施作中部盖梁时，无需在本体初坯的底部施作底模，无需在本体初坯的横向端部施作侧模，施工工艺简单。
Prefabricated assembled bridge and construction method thereof
一种预制拼装桥梁及其施工方法
WANG QING (author) / PENG JIANGHUI (author) / LI WENWU (author) / LIU RONG (author) / CHEN GUANG (author) / GAI YONGBIN (author) / CUI JIANFENG (author) / ZENG MANLIANG (author) / HU RUI (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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