A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-span fish-bellied foundation beam with unbonded prestressed tendons
A fish-bellied foundation beam of a large-span unbonded prestressed tendon comprises supporting piles at the two ends, a middle cross beam and unbonded steel strands, and the high-strength unbonded prestressed steel strands, short stand columns with different lengths and reinforced concrete cross beams are adopted to construct the variable-height, large-span and high-bearing-capacity foundation beam; the appearance is exactly like a fish belly. The concrete cross beams and the terrace are integrally cast and are axially pressed, and the high-strength prestressed tendons are pulled, so that the advantages of high-strength steel can be better exerted; the unbonded prestressed tendons are adopted as high-strength materials, the technology is mature, and corrosion resistance and durability are achieved. According to the technical scheme, the cost performance is extremely high, construction is convenient and fast, and the bearing capacity is large. The stress of the unbonded steel strand can be designed according to the requirement of the ground bearing capacity and is convenient to adjust; the problem of differential settlement of a large-area site under the deep sea silt geological condition is conveniently solved, and the cost performance is extremely high. Lateral instability can be effectively prevented; the overhead ground cannot get damp or return alkali, the force transmission path is clear, and sedimentation is adjustable and controllable.
一种大跨度无粘结预应力筋的鱼腹式地基梁，包括两端支撑桩、中间横梁和无粘结钢绞线，采用高强无粘结预应力钢绞线及长短不一的短立柱、钢筋混凝土横梁构建变高度、大跨度、高承载力的地基梁；外形酷似鱼腹。混凝土横梁与地坪整浇并轴向受压，高强预应力筋受拉，也可更好的发挥高强钢材的优势；采用无粘结预应力筋作为高强材料，技术成熟，且防腐耐久。本发明提供的技术方案，性价比极高，施工便捷，承载能力大。无粘结钢绞线应力可根据地面承载能力的需求进行设计并方便调整；方便解决深厚海淤地质条件下大面积场地的不均匀沉降问题，性价比极高。可有效的防止其侧向失稳；架空式地面：不会返潮、返碱，传力途径明确，沉降可调可控。
Large-span fish-bellied foundation beam with unbonded prestressed tendons
A fish-bellied foundation beam of a large-span unbonded prestressed tendon comprises supporting piles at the two ends, a middle cross beam and unbonded steel strands, and the high-strength unbonded prestressed steel strands, short stand columns with different lengths and reinforced concrete cross beams are adopted to construct the variable-height, large-span and high-bearing-capacity foundation beam; the appearance is exactly like a fish belly. The concrete cross beams and the terrace are integrally cast and are axially pressed, and the high-strength prestressed tendons are pulled, so that the advantages of high-strength steel can be better exerted; the unbonded prestressed tendons are adopted as high-strength materials, the technology is mature, and corrosion resistance and durability are achieved. According to the technical scheme, the cost performance is extremely high, construction is convenient and fast, and the bearing capacity is large. The stress of the unbonded steel strand can be designed according to the requirement of the ground bearing capacity and is convenient to adjust; the problem of differential settlement of a large-area site under the deep sea silt geological condition is conveniently solved, and the cost performance is extremely high. Lateral instability can be effectively prevented; the overhead ground cannot get damp or return alkali, the force transmission path is clear, and sedimentation is adjustable and controllable.
一种大跨度无粘结预应力筋的鱼腹式地基梁，包括两端支撑桩、中间横梁和无粘结钢绞线，采用高强无粘结预应力钢绞线及长短不一的短立柱、钢筋混凝土横梁构建变高度、大跨度、高承载力的地基梁；外形酷似鱼腹。混凝土横梁与地坪整浇并轴向受压，高强预应力筋受拉，也可更好的发挥高强钢材的优势；采用无粘结预应力筋作为高强材料，技术成熟，且防腐耐久。本发明提供的技术方案，性价比极高，施工便捷，承载能力大。无粘结钢绞线应力可根据地面承载能力的需求进行设计并方便调整；方便解决深厚海淤地质条件下大面积场地的不均匀沉降问题，性价比极高。可有效的防止其侧向失稳；架空式地面：不会返潮、返碱，传力途径明确，沉降可调可控。
Large-span fish-bellied foundation beam with unbonded prestressed tendons
一种大跨度无粘结预应力筋的鱼腹式地基梁
TIAN ANGUO (author) / LIANG SHUAI (author) / TANI TAKAHIRO (author)
2022-07-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Behaviour of Two-Span Concrete Beams Prestressed with Unbonded Tendons
| British Library Conference Proceedings | 1999
Beams prestressed with unbonded tendons at ultimate
| British Library Online Contents | 1996
Beams prestressed with unbonded tendons at ultimate
| Online Contents | 1996
Prestressed fish-bellied foundation pit steel support structure
| European Patent Office | 2023
Recommendations for Concrete Members Prestressed with Unbonded Tendons
British Library Online Contents | 1997