A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a combined supporting system for a subway rail row well, and relates to the field of underground structures. The combined supporting system comprises a supporting structure, a truss girder and a prestress structure, the supporting structure is fixed to a floor slab and staggered with a floor slab track panel hole, the truss girder is arranged on the outer side of the floor slab track panel hole, and the end of the truss girder is matched with the supporting structure in a jacking and pressing mode; the truss girder is attached to the inner side of the side wall and comprises an outer chord member, an inner chord member and a plurality of web members, the outer chord member and the inner chord member are arranged at intervals, and the web members are connected between the outer chord member and the inner chord member; the outer chord member is a straight rod extending along the plane of the side wall, a plurality of first connecting parts are arranged on the outer chord member, and the first connecting parts are detachably connected with protruding steel parts pre-embedded in the side wall through bolts; the inner chord member is a bent rod with the middle protruding outwards, the prestress structure is connected to the two ends of the inner chord member in a tensioning mode, and a prestress servo system is installed on the prestress structure so that the truss girder can generate the active supporting effect when the prestress structure exerts tensioning force.
本发明提供了一种用于地铁轨排井的组合支撑系统，涉及地下结构领域。该组合支撑系统包括支承结构、桁架梁和预应力结构，支承结构固定于楼板上且与楼板轨排孔错开，桁架梁设于楼板轨排孔的外侧，桁架梁的端部与支承结构顶压配合；桁架梁贴靠于侧墙的内侧，桁架梁包括外弦杆、内弦杆和多个腹杆，外弦杆与内弦杆间隔布置，多个腹杆连接于外弦杆和内弦杆之间；外弦杆为沿侧墙平面延伸的直杆，外弦杆上设有多个第一连接部，第一连接部通过螺栓与预埋在侧墙上的突出型钢件实现可拆连接；内弦杆为中部朝外凸出的弯杆，预应力结构张拉连接于内弦杆的两端，且预应力结构上安装有预应力伺服系统，以在预应力结构施加张拉力时，使桁架梁产生主动支护作用。
The invention provides a combined supporting system for a subway rail row well, and relates to the field of underground structures. The combined supporting system comprises a supporting structure, a truss girder and a prestress structure, the supporting structure is fixed to a floor slab and staggered with a floor slab track panel hole, the truss girder is arranged on the outer side of the floor slab track panel hole, and the end of the truss girder is matched with the supporting structure in a jacking and pressing mode; the truss girder is attached to the inner side of the side wall and comprises an outer chord member, an inner chord member and a plurality of web members, the outer chord member and the inner chord member are arranged at intervals, and the web members are connected between the outer chord member and the inner chord member; the outer chord member is a straight rod extending along the plane of the side wall, a plurality of first connecting parts are arranged on the outer chord member, and the first connecting parts are detachably connected with protruding steel parts pre-embedded in the side wall through bolts; the inner chord member is a bent rod with the middle protruding outwards, the prestress structure is connected to the two ends of the inner chord member in a tensioning mode, and a prestress servo system is installed on the prestress structure so that the truss girder can generate the active supporting effect when the prestress structure exerts tensioning force.
本发明提供了一种用于地铁轨排井的组合支撑系统，涉及地下结构领域。该组合支撑系统包括支承结构、桁架梁和预应力结构，支承结构固定于楼板上且与楼板轨排孔错开，桁架梁设于楼板轨排孔的外侧，桁架梁的端部与支承结构顶压配合；桁架梁贴靠于侧墙的内侧，桁架梁包括外弦杆、内弦杆和多个腹杆，外弦杆与内弦杆间隔布置，多个腹杆连接于外弦杆和内弦杆之间；外弦杆为沿侧墙平面延伸的直杆，外弦杆上设有多个第一连接部，第一连接部通过螺栓与预埋在侧墙上的突出型钢件实现可拆连接；内弦杆为中部朝外凸出的弯杆，预应力结构张拉连接于内弦杆的两端，且预应力结构上安装有预应力伺服系统，以在预应力结构施加张拉力时，使桁架梁产生主动支护作用。
Combined supporting system for subway rail row well
一种用于地铁轨排井的组合支撑系统
2023-01-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen