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A platform for research: civil engineering, architecture and urbanism
Structural system applied to prestressed concrete steel-concrete partial cable-stayed bridge
The invention discloses a structural system applied to a prestressed concrete steel-concrete partial cable-stayed bridge. In an existing bridge tower-bridge pier consolidation and bridge tower-main beam separation semi-floating system, the whole bridge body can generate longitudinal displacement and large displacement at the beam end along with the occurrence of the conditions of temperature change and the like. Spherical steel supports of different types and different tonnages are arranged on the top faces of the buttresses, a fixed spherical steel support is arranged at the connecting position of the bridge tower and the prestressed concrete box girder section, and longitudinal movable spherical steel supports are arranged on the other portions of the bridge tower and the prestressed concrete box girder section. The longitudinal movable support is used for releasing temperature secondary internal force and displacement, the fixed support is fully used for bearing train braking load and inertia force generated by huge self weight of a beam body, and therefore the service life of the beam end telescopic device and operation safety of a high-speed train are guaranteed.
本发明公开了一种应用于预应力混凝土钢‑混凝土部分斜拉桥的结构体系。现有桥塔‑桥墩固结、桥塔‑主梁分离半漂浮体系中，随着温度变化等情况的发生，整个桥体会产生纵向位移和梁端大位移。本发明在各支墩顶面设置有不同类型、不同吨位的球型钢支座，桥塔与预应力混凝土箱梁段连接处设置一处固定球型钢支座，其余设置纵向活动球型钢支座。本发明利用纵向活动支座释放温度次内力和位移，又充分利用了固定支座承担列车制动荷载和因梁体自重巨大产生的惯性力，从而确保了梁端伸缩装置的使用寿命和高速列车的运营安全。
Structural system applied to prestressed concrete steel-concrete partial cable-stayed bridge
The invention discloses a structural system applied to a prestressed concrete steel-concrete partial cable-stayed bridge. In an existing bridge tower-bridge pier consolidation and bridge tower-main beam separation semi-floating system, the whole bridge body can generate longitudinal displacement and large displacement at the beam end along with the occurrence of the conditions of temperature change and the like. Spherical steel supports of different types and different tonnages are arranged on the top faces of the buttresses, a fixed spherical steel support is arranged at the connecting position of the bridge tower and the prestressed concrete box girder section, and longitudinal movable spherical steel supports are arranged on the other portions of the bridge tower and the prestressed concrete box girder section. The longitudinal movable support is used for releasing temperature secondary internal force and displacement, the fixed support is fully used for bearing train braking load and inertia force generated by huge self weight of a beam body, and therefore the service life of the beam end telescopic device and operation safety of a high-speed train are guaranteed.
本发明公开了一种应用于预应力混凝土钢‑混凝土部分斜拉桥的结构体系。现有桥塔‑桥墩固结、桥塔‑主梁分离半漂浮体系中，随着温度变化等情况的发生，整个桥体会产生纵向位移和梁端大位移。本发明在各支墩顶面设置有不同类型、不同吨位的球型钢支座，桥塔与预应力混凝土箱梁段连接处设置一处固定球型钢支座，其余设置纵向活动球型钢支座。本发明利用纵向活动支座释放温度次内力和位移，又充分利用了固定支座承担列车制动荷载和因梁体自重巨大产生的惯性力，从而确保了梁端伸缩装置的使用寿命和高速列车的运营安全。
Structural system applied to prestressed concrete steel-concrete partial cable-stayed bridge
一种应用于预应力混凝土钢-混凝土部分斜拉桥的结构体系
OUYANG HUILAI (author) / CHEN YINGTAO (author) / ZHANG DUOPING (author) / ZHOU HONG (author) / CHEN HUALIANG (author) / LUO YANGMING (author) / YANG CONG (author) / CHEN GANG (author) / WANG YING (author) / ZHUANG YAN (author)
2022-08-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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