A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Excavation roadbed with prestressed anchor rod lattice beam bridge floor and construction method of excavation roadbed
The invention discloses an excavation roadbed with a prestressed anchor rod lattice beam bridge floor and a construction method. The excavation roadbed comprises a lattice frame horizontally arrangedon a roadbed, and a bridge deck slab laid on the lattice frame. The lattice frame is mainly composed of at least one pair of lattice longitudinal beams extending in the length direction of the roadbed, a plurality of lattice cross beams arranged in parallel in the length direction of the roadbed, a plurality of cantilever joists located on the outer side of a cut slope and a plurality of prestressed anchor rods located on the inner side of the cut slope. Two ends of each lattice cross beam are connected with the lattice longitudinal beam, one end of each cantilever joist is connected with theoutermost lattice longitudinal beam, the other end of each cantilever joist is suspended, and the prestressed anchor rods penetrate through the innermost lattice longitudinal beam and extend downwardsinto a roadbed. A land use area is saved, construction limited factors are reduced, a deep digging work amount is decreased, construction is facilitated, and construction cost is saved. Bridge floorrigidity is large, a roadbed differential settlement degree is small, and the prestressed anchor rods have a protection effect on the side slope. A lower portion of a bridge deck is empty, a visual effect is good and an influence on an ecological environment is small.
本发明公开了一种带预应力锚杆框格梁桥面的挖方路基及施工方法，包括水平设置在路床上的框格架和铺设在框格架上的桥面板，框格架主要由至少一对沿路基长度方向延伸的框格纵梁、沿路基长度方向并列排布的若干框格横梁、位于路堑边坡外侧的若干悬臂托梁和位于路堑边坡内侧的若干预应力锚杆组成，框格横梁的两端与框格纵梁连接，悬臂托梁的一端与位于最外侧的框格纵梁连接，另一端悬空，预应力锚杆穿过最内侧的框格纵梁向下伸入路基中。本发明节约土地使用面积，减少建设受限因素，降低深挖工程量，便于施工，节约工程造价。桥面刚度大，路基不均匀沉降程度小，预应力锚杆对边坡具有防护作用。桥面板下部临空，视野效果好，对生态环境影响小。
Excavation roadbed with prestressed anchor rod lattice beam bridge floor and construction method of excavation roadbed
The invention discloses an excavation roadbed with a prestressed anchor rod lattice beam bridge floor and a construction method. The excavation roadbed comprises a lattice frame horizontally arrangedon a roadbed, and a bridge deck slab laid on the lattice frame. The lattice frame is mainly composed of at least one pair of lattice longitudinal beams extending in the length direction of the roadbed, a plurality of lattice cross beams arranged in parallel in the length direction of the roadbed, a plurality of cantilever joists located on the outer side of a cut slope and a plurality of prestressed anchor rods located on the inner side of the cut slope. Two ends of each lattice cross beam are connected with the lattice longitudinal beam, one end of each cantilever joist is connected with theoutermost lattice longitudinal beam, the other end of each cantilever joist is suspended, and the prestressed anchor rods penetrate through the innermost lattice longitudinal beam and extend downwardsinto a roadbed. A land use area is saved, construction limited factors are reduced, a deep digging work amount is decreased, construction is facilitated, and construction cost is saved. Bridge floorrigidity is large, a roadbed differential settlement degree is small, and the prestressed anchor rods have a protection effect on the side slope. A lower portion of a bridge deck is empty, a visual effect is good and an influence on an ecological environment is small.
本发明公开了一种带预应力锚杆框格梁桥面的挖方路基及施工方法，包括水平设置在路床上的框格架和铺设在框格架上的桥面板，框格架主要由至少一对沿路基长度方向延伸的框格纵梁、沿路基长度方向并列排布的若干框格横梁、位于路堑边坡外侧的若干悬臂托梁和位于路堑边坡内侧的若干预应力锚杆组成，框格横梁的两端与框格纵梁连接，悬臂托梁的一端与位于最外侧的框格纵梁连接，另一端悬空，预应力锚杆穿过最内侧的框格纵梁向下伸入路基中。本发明节约土地使用面积，减少建设受限因素，降低深挖工程量，便于施工，节约工程造价。桥面刚度大，路基不均匀沉降程度小，预应力锚杆对边坡具有防护作用。桥面板下部临空，视野效果好，对生态环境影响小。
Excavation roadbed with prestressed anchor rod lattice beam bridge floor and construction method of excavation roadbed
一种带预应力锚杆框格梁桥面的挖方路基及其施工方法
WANG WUSHENG (author) / PENG YAJUN (author) / LI ZHENFA (author) / CHEN JIANGTAO (author) / ZHOU ZEJIAN (author) / HU SHENGKUI (author) / CHEN JIUCHANG (author) / LU CHAO (author) / LEI SHUNCHENG (author) / TANG CHUNYAN (author)
2020-10-13
Patent
Electronic Resource
Chinese