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A platform for research: civil engineering, architecture and urbanism
Novel anti-seismic rigid frame bridge pier and bridge
The pier comprises a pier top section, a pier body middle section and a pier bottom section which are sequentially connected from top to bottom, the pier top section is wide upwards and narrow downwards along the bridge and adopts circular curve transition, the pier top section is equal in width in the transverse bridge direction, the pier body middle section is equal in width along the bridge direction, and the pier body middle section is linearly widened in the transverse bridge direction narrow upwards and wide downwards. The pier bottom section is narrow in the upper portion and wide in the lower portion in the bridge direction and the transverse bridge direction and adopts circular curve transition, and the pier is a hollow pier. The size of the top edge of the pier top section in the bridge direction and the size of the bottom edge of the pier bottom section in the bridge direction and the transverse bridge direction are increased, the structural self-weight increment with the small local range is used for replacing remarkable sectional inertia moment and resistance amplification, internal force distribution of the pier top and the pier bottom of the rigid frame bridge pier is adjusted and optimized, and the rigid frame bridge pier is novel in structural form and high in rigidity. The internal force distribution of the pier top and the pier bottom can be effectively improved, the aseismic design of a lower pier body and a foundation of a continuous rigid frame bridge in a high-intensity earthquake area is particularly facilitated, and a solution is provided for the design of the continuous rigid frame bridge pier under the action of a strong earthquake.
本发明关于一种新型抗震刚构桥墩及桥梁，该桥墩包括至上而下依次连接的墩顶段、墩身中间段和墩底段，墩顶段顺桥向上宽、下窄，采用圆曲线过渡，墩顶段横桥向等宽，墩身中间段顺桥向等宽，墩身中间段横桥向上窄下宽线性变宽，墩底段顺桥向和横桥向均为上窄、下宽，均采用圆曲线过渡，桥墩为空心墩。本发明通过增加墩顶段顶缘顺桥向尺寸和墩底段底缘顺桥向及横桥向尺寸，以局部范围较小的结构自重增量换取显著的截面惯性矩及抗力增幅，调整和优化刚构桥墩墩顶和墩底内力分配，刚构桥墩结构形式新颖，能够有效改善墩顶、墩底内力分配，尤其有利于高烈度地震区连续刚构桥下部墩身及基础抗震设计，为强地震作用下连续刚构桥墩的设计带来解决方案。
Novel anti-seismic rigid frame bridge pier and bridge
The pier comprises a pier top section, a pier body middle section and a pier bottom section which are sequentially connected from top to bottom, the pier top section is wide upwards and narrow downwards along the bridge and adopts circular curve transition, the pier top section is equal in width in the transverse bridge direction, the pier body middle section is equal in width along the bridge direction, and the pier body middle section is linearly widened in the transverse bridge direction narrow upwards and wide downwards. The pier bottom section is narrow in the upper portion and wide in the lower portion in the bridge direction and the transverse bridge direction and adopts circular curve transition, and the pier is a hollow pier. The size of the top edge of the pier top section in the bridge direction and the size of the bottom edge of the pier bottom section in the bridge direction and the transverse bridge direction are increased, the structural self-weight increment with the small local range is used for replacing remarkable sectional inertia moment and resistance amplification, internal force distribution of the pier top and the pier bottom of the rigid frame bridge pier is adjusted and optimized, and the rigid frame bridge pier is novel in structural form and high in rigidity. The internal force distribution of the pier top and the pier bottom can be effectively improved, the aseismic design of a lower pier body and a foundation of a continuous rigid frame bridge in a high-intensity earthquake area is particularly facilitated, and a solution is provided for the design of the continuous rigid frame bridge pier under the action of a strong earthquake.
本发明关于一种新型抗震刚构桥墩及桥梁，该桥墩包括至上而下依次连接的墩顶段、墩身中间段和墩底段，墩顶段顺桥向上宽、下窄，采用圆曲线过渡，墩顶段横桥向等宽，墩身中间段顺桥向等宽，墩身中间段横桥向上窄下宽线性变宽，墩底段顺桥向和横桥向均为上窄、下宽，均采用圆曲线过渡，桥墩为空心墩。本发明通过增加墩顶段顶缘顺桥向尺寸和墩底段底缘顺桥向及横桥向尺寸，以局部范围较小的结构自重增量换取显著的截面惯性矩及抗力增幅，调整和优化刚构桥墩墩顶和墩底内力分配，刚构桥墩结构形式新颖，能够有效改善墩顶、墩底内力分配，尤其有利于高烈度地震区连续刚构桥下部墩身及基础抗震设计，为强地震作用下连续刚构桥墩的设计带来解决方案。
Novel anti-seismic rigid frame bridge pier and bridge
一种新型抗震刚构桥墩及桥梁
CAI CHAO (author) / DENG YONGLING (author) / DAI SHENGYONG (author) / CHEN TIANDI (author) / DENG JUNQIAO (author) / ZHANG YU (author) / XU SHUO (author) / CHEN JIANFENG (author) / XIANG LYUKAI (author) / TAN QINGQUAN (author)
2023-06-02
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Seismic Fragility of Continuous Rigid Frame Bridge with Unequal Pier Height
| British Library Conference Proceedings | 2015