A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Slant leg-arch combined self-balancing integral rigid framework and construction method thereof
The invention discloses an inclined leg-arch combined rigid framework self-balancing integral rigid framework and a construction method thereof. The integral rigid framework comprises an upper structure, a lower structure and an accessory structure, wherein the upper structure comprises a prestressed reinforced concrete box beam and a reinforced concrete inclined leg-arch combined structure; the lower structure comprises reinforced concrete rectangular cross section side inclined rods, a light bridge abutment, a bearing platform and a UHPC-RC flexible step pile foundation; the accessory structure comprises a steel handrail, a bridge deck pavement and a bridge abutment approach slab. The inclined leg-arch combined structure effectively reduces the horizontal thrust at the bearing platform; gravity of the bridge abutment is transmitted to the bearing platform through the side inclined rods, and the horizontal thrust generated by the gravity effectively balances the horizontal thrust brought by the inclined leg-arch combined structure; integrity of the bridge is improved through the overall design, the bridge floor is continuous and seamless, and the driving comfort of vehicles is improved; the foundation adopts a stepped pile formed by combining an ultra-high performance concrete pile and a common concrete pile, and the characteristics that the stepped pile has ultra-high compressive strength and certain tensile strength are utilized.
本发明专利公布了一种斜腿‑拱组合刚构自平衡整体刚构架及施工方法，该整体刚构架包括上部结构、下部结构和附属结构；上部结构包含预应力钢筋混凝土箱形梁、钢筋混凝土斜腿‑拱组合结构；下部结构包含钢筋混凝土矩形截面边斜杆、轻型桥台、承台及UHPC‑RC柔性阶梯桩基础；附属结构包含钢制栏杆、桥面铺装及桥台搭板。斜腿‑拱组合结构有效降低了承台处的水平推力；桥台的重力通过边斜杆传递至承台处，重力产生的水平推力有效平衡了斜腿‑拱组合结构带来的水平推力；整体设计提高了桥梁的整体性，实现了桥面连续，无接缝，提高车辆行驶舒适度；基础采用超高性能混凝土桩与普通混凝土桩相结合的阶梯桩，利用其具有超强抗压强度和一定抗拉强度的特点。
Slant leg-arch combined self-balancing integral rigid framework and construction method thereof
The invention discloses an inclined leg-arch combined rigid framework self-balancing integral rigid framework and a construction method thereof. The integral rigid framework comprises an upper structure, a lower structure and an accessory structure, wherein the upper structure comprises a prestressed reinforced concrete box beam and a reinforced concrete inclined leg-arch combined structure; the lower structure comprises reinforced concrete rectangular cross section side inclined rods, a light bridge abutment, a bearing platform and a UHPC-RC flexible step pile foundation; the accessory structure comprises a steel handrail, a bridge deck pavement and a bridge abutment approach slab. The inclined leg-arch combined structure effectively reduces the horizontal thrust at the bearing platform; gravity of the bridge abutment is transmitted to the bearing platform through the side inclined rods, and the horizontal thrust generated by the gravity effectively balances the horizontal thrust brought by the inclined leg-arch combined structure; integrity of the bridge is improved through the overall design, the bridge floor is continuous and seamless, and the driving comfort of vehicles is improved; the foundation adopts a stepped pile formed by combining an ultra-high performance concrete pile and a common concrete pile, and the characteristics that the stepped pile has ultra-high compressive strength and certain tensile strength are utilized.
本发明专利公布了一种斜腿‑拱组合刚构自平衡整体刚构架及施工方法，该整体刚构架包括上部结构、下部结构和附属结构；上部结构包含预应力钢筋混凝土箱形梁、钢筋混凝土斜腿‑拱组合结构；下部结构包含钢筋混凝土矩形截面边斜杆、轻型桥台、承台及UHPC‑RC柔性阶梯桩基础；附属结构包含钢制栏杆、桥面铺装及桥台搭板。斜腿‑拱组合结构有效降低了承台处的水平推力；桥台的重力通过边斜杆传递至承台处，重力产生的水平推力有效平衡了斜腿‑拱组合结构带来的水平推力；整体设计提高了桥梁的整体性，实现了桥面连续，无接缝，提高车辆行驶舒适度；基础采用超高性能混凝土桩与普通混凝土桩相结合的阶梯桩，利用其具有超强抗压强度和一定抗拉强度的特点。
Slant leg-arch combined self-balancing integral rigid framework and construction method thereof
一种斜腿-拱组合自平衡整体刚构架及施工方法
ZHENG YUHAN (author) / JI GUANGYU (author) / ZHANG ENHAO (author) / SUN PANGBO (author) / CHEN MINGZHU (author) / LIN WENMIN (author)
2021-08-06
Patent
Electronic Resource
Chinese
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