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A platform for research: civil engineering, architecture and urbanism
Self-resetting hollow interlayer concrete-filled steel tube section assembled bridge pier
The invention relates to a self-resetting hollow interlayer concrete-filled steel tube section assembled bridge pier which comprises a cast-in-place reinforced concrete bearing platform, unbonded prestressed tendons and a prefabricated reinforced concrete cover beam, and corrugated pipes are embedded in the longitudinal axis positions of the cast-in-place reinforced concrete bearing platform and the prefabricated reinforced concrete cover beam respectively. A bottom section, a top section and partial unbonded longitudinal bars of a prefabricated hollow sandwich concrete-filled steel tube pier body are further arranged between the cast-in-place reinforced concrete bearing platform and the prefabricated reinforced concrete cover beam, and the bottom section and the top section of the hollow sandwich concrete-filled steel tube pier body each comprise an inner-layer steel tube and an outer-layer steel tube, a concrete interlayer is poured between the inner-layer steel tube and the outer-layer steel tube; longitudinal PVC pipes used for penetrating through the unbonded longitudinal bars are embedded in the concrete interlayer of the pier body bottom section. And the partial unbonded longitudinal bar comprises three parts from top to bottom: an outward extending part upwards from the top surface of the bearing platform, an unbonded section positioned at the upper part of the bearing platform and a pre-embedded part in the bearing platform.
本发明涉及一种自复位中空夹层钢管混凝土节段拼装桥墩，包括现浇钢筋混凝土承台、无粘结预应力筋和预制钢筋混凝土盖梁，现浇钢筋混凝土承台和预制钢筋混凝土盖梁在纵向轴线位置分别预埋有波纹管和波纹管。在现浇钢筋混凝土承台和预制钢筋混凝土盖梁之间还设置有预制中空夹层钢管混凝土墩身底节段、顶节段以及部分无粘结纵筋，所述的中空夹层钢管混凝土墩身底节段和顶节段均包括截面圆心重合的内层钢管和外层钢管，内层钢管和外层钢管之间浇筑混凝土夹层，墩身底节段的混凝土夹层预埋有用于穿过无粘结纵筋的纵向PVC管；部分无粘结纵筋自上而下包括三部分：自承台顶面向上的外伸部分、位于承台上部的无粘结段和在承台中的预埋部分。
Self-resetting hollow interlayer concrete-filled steel tube section assembled bridge pier
The invention relates to a self-resetting hollow interlayer concrete-filled steel tube section assembled bridge pier which comprises a cast-in-place reinforced concrete bearing platform, unbonded prestressed tendons and a prefabricated reinforced concrete cover beam, and corrugated pipes are embedded in the longitudinal axis positions of the cast-in-place reinforced concrete bearing platform and the prefabricated reinforced concrete cover beam respectively. A bottom section, a top section and partial unbonded longitudinal bars of a prefabricated hollow sandwich concrete-filled steel tube pier body are further arranged between the cast-in-place reinforced concrete bearing platform and the prefabricated reinforced concrete cover beam, and the bottom section and the top section of the hollow sandwich concrete-filled steel tube pier body each comprise an inner-layer steel tube and an outer-layer steel tube, a concrete interlayer is poured between the inner-layer steel tube and the outer-layer steel tube; longitudinal PVC pipes used for penetrating through the unbonded longitudinal bars are embedded in the concrete interlayer of the pier body bottom section. And the partial unbonded longitudinal bar comprises three parts from top to bottom: an outward extending part upwards from the top surface of the bearing platform, an unbonded section positioned at the upper part of the bearing platform and a pre-embedded part in the bearing platform.
本发明涉及一种自复位中空夹层钢管混凝土节段拼装桥墩，包括现浇钢筋混凝土承台、无粘结预应力筋和预制钢筋混凝土盖梁，现浇钢筋混凝土承台和预制钢筋混凝土盖梁在纵向轴线位置分别预埋有波纹管和波纹管。在现浇钢筋混凝土承台和预制钢筋混凝土盖梁之间还设置有预制中空夹层钢管混凝土墩身底节段、顶节段以及部分无粘结纵筋，所述的中空夹层钢管混凝土墩身底节段和顶节段均包括截面圆心重合的内层钢管和外层钢管，内层钢管和外层钢管之间浇筑混凝土夹层，墩身底节段的混凝土夹层预埋有用于穿过无粘结纵筋的纵向PVC管；部分无粘结纵筋自上而下包括三部分：自承台顶面向上的外伸部分、位于承台上部的无粘结段和在承台中的预埋部分。
Self-resetting hollow interlayer concrete-filled steel tube section assembled bridge pier
自复位中空夹层钢管混凝土节段拼装桥墩
LI ZHONGXIAN (author) / DU CHUNYU (author) / LIANG XIAO (author) / ZHAO BO (author)
2021-12-14
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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