A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Prestressed concrete cable-stayed bridge cable beam anchoring structure and bridge
The invention provides a prestressed concrete cable-stayed bridge cable beam anchoring structure and a bridge, and relates to the field of bridges, an anchor block is provided with a sleeve allowing a stay cable to penetrate through, the face, attached to the bottom face of a box beam, of the anchor block is a combination face, the face opposite to the combination face is an anchor face of the anchor block, and the anchor face is perpendicular to the axis of the sleeve; the surfaces which are positioned between the joint surface and the anchor surface and are adjacent to the anchor surface are four side surfaces of the anchor block, and at least three side surfaces and the bottom surface of the box girder form obtuse surface angles; the opening circle center of the sleeve on the anchor surface is an anchoring point; the anchoring point is coplanar with the center line of the diaphragm plate of the box girder attached to the anchor block; aiming at the problems of stress concentration and poor reliability caused by an unreasonable structure of an existing cable-stayed bridge anchor block, a spatial polyhedral structure is adopted to ensure that the included angle between the lateral side of the anchor block in the transverse bridge direction and the bottom surface of a box girder is an obtuse angle, so that the stress of the anchor block is optimized, a steel bar anchoring structure in the anchor block is reasonable, and stress concentration is avoided; the construction convenience is improved, so that the structural quality is ensured.
本发明提供一种预应力混凝土斜拉桥索梁锚固结构及桥梁，涉及桥梁领域，锚块上设有供斜拉索穿设的套筒，锚块贴合箱梁底面的一面为结合面，与结合面相对的一面为锚块的锚面，锚面与套筒轴线垂直，位于结合面和锚面之间且与锚面相邻的面为锚块的四个侧面，其中至少三个侧面与箱梁底面所成面面角为钝角；套筒位于锚面上的开口圆心为锚固点，锚固点与锚块所贴合箱梁的横隔板中心线共面；针对目前斜拉桥锚块结构不合理导致应力集中及可靠性差的问题，采用空间多面体结构，确保在锚块横桥向侧面与箱梁底面夹角为钝角，从而优化锚块受力，使得锚块内部钢筋锚固结构合理，避免了应力集中，提高施工便捷性从而保证结构质量。
Prestressed concrete cable-stayed bridge cable beam anchoring structure and bridge
The invention provides a prestressed concrete cable-stayed bridge cable beam anchoring structure and a bridge, and relates to the field of bridges, an anchor block is provided with a sleeve allowing a stay cable to penetrate through, the face, attached to the bottom face of a box beam, of the anchor block is a combination face, the face opposite to the combination face is an anchor face of the anchor block, and the anchor face is perpendicular to the axis of the sleeve; the surfaces which are positioned between the joint surface and the anchor surface and are adjacent to the anchor surface are four side surfaces of the anchor block, and at least three side surfaces and the bottom surface of the box girder form obtuse surface angles; the opening circle center of the sleeve on the anchor surface is an anchoring point; the anchoring point is coplanar with the center line of the diaphragm plate of the box girder attached to the anchor block; aiming at the problems of stress concentration and poor reliability caused by an unreasonable structure of an existing cable-stayed bridge anchor block, a spatial polyhedral structure is adopted to ensure that the included angle between the lateral side of the anchor block in the transverse bridge direction and the bottom surface of a box girder is an obtuse angle, so that the stress of the anchor block is optimized, a steel bar anchoring structure in the anchor block is reasonable, and stress concentration is avoided; the construction convenience is improved, so that the structural quality is ensured.
本发明提供一种预应力混凝土斜拉桥索梁锚固结构及桥梁，涉及桥梁领域，锚块上设有供斜拉索穿设的套筒，锚块贴合箱梁底面的一面为结合面，与结合面相对的一面为锚块的锚面，锚面与套筒轴线垂直，位于结合面和锚面之间且与锚面相邻的面为锚块的四个侧面，其中至少三个侧面与箱梁底面所成面面角为钝角；套筒位于锚面上的开口圆心为锚固点，锚固点与锚块所贴合箱梁的横隔板中心线共面；针对目前斜拉桥锚块结构不合理导致应力集中及可靠性差的问题，采用空间多面体结构，确保在锚块横桥向侧面与箱梁底面夹角为钝角，从而优化锚块受力，使得锚块内部钢筋锚固结构合理，避免了应力集中，提高施工便捷性从而保证结构质量。
Prestressed concrete cable-stayed bridge cable beam anchoring structure and bridge
一种预应力混凝土斜拉桥索梁锚固结构及桥梁
ZHANG PENG (author) / WANG GUOLEI (author) / JIANG FENGLIAN (author) / CHEN GUIFANG (author) / JIANG FENG (author) / YANG KUN (author) / MENG YUNFEI (author) / CHEN JIAN (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Cable-stayed bridge cable beam anchoring structure and cable-stayed bridge
| European Patent Office | 2020
Cable-stayed bridge steel-concrete combined cable and beam anchoring structure
| European Patent Office | 2015
External anchoring structure of cable-stayed bridge cable tower body and cable-stayed bridge
| European Patent Office | 2023
Cable-stayed bridge steel shell-concrete combined bridge tower cable bent tower anchoring structure
| European Patent Office | 2023
Bridge type structure applied to prestressed concrete steel-concrete partial cable-stayed bridge
| European Patent Office | 2023