城市建筑
城市建築
성시건축
URBANISM AND ARCHITECTURE
2013年
12期
250-250,261
,共2页
悬索桥%主缆%设计%矢跨比%桥梁
懸索橋%主纜%設計%矢跨比%橋樑
현색교%주람%설계%시과비%교량
suspension bridge%main cable%design%rise-span ratio%bridge
悬索桥因其主缆受拉力,材料利用效率高,己成为特大跨度桥梁的首选桥型。悬索桥尤其是大跨悬索桥的柔性特点,使其线形易受到施工现场条件、临时设施和环境温度的影响,因此主缆设计是悬索桥合理设计的关键。本文将以白鹤滩电站三滩悬索钢桥工程为例,从跨度、矢跨比、锚碇位置、主缆截面等方面对主缆设计进行介绍。
懸索橋因其主纜受拉力,材料利用效率高,己成為特大跨度橋樑的首選橋型。懸索橋尤其是大跨懸索橋的柔性特點,使其線形易受到施工現場條件、臨時設施和環境溫度的影響,因此主纜設計是懸索橋閤理設計的關鍵。本文將以白鶴灘電站三灘懸索鋼橋工程為例,從跨度、矢跨比、錨碇位置、主纜截麵等方麵對主纜設計進行介紹。
현색교인기주람수랍력,재료이용효솔고,기성위특대과도교량적수선교형。현색교우기시대과현색교적유성특점,사기선형역수도시공현장조건、림시설시화배경온도적영향,인차주람설계시현색교합리설계적관건。본문장이백학탄전참삼탄현색강교공정위례,종과도、시과비、묘정위치、주람절면등방면대주람설계진행개소。
Because of the main cable of suspension bridge is tensioned, and its material is utilized efficiently, it has become the preferred type of large span bridge. Suspension bridges es-pecial y flexible characteristics of long-span suspension bridge, the linear easily affected by the construction site conditions, te-mporary facilities and environment temperature, so the main c-able design is the key to the rational design of suspension br-idge. This paper wil take Baihetan hydropower station three beach self-anchored suspension bridge project as an example, introduces the main cable design from the aspects of span, ris-e-span ratio, anchor position and the main cable section.