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系杆拱桥类型

系杆拱桥类型

Tied Arch bridge with bascule section, central segments raised, spanning a body of water.
视觉美学
  • 主要特征: 钢拱
  • 形式/轮廓: 独特的拱门，视野开阔
  • 独特性: 波特兰现有市中心桥梁的一些子选项独有
  • 风格/特征: 传统、朴实
  • 材料: 耐候钢
城市背景（桥梁如何融入城市景观）
  • 高度: 比院子低 60 英尺 (大型建筑在桥的东端)
  • 焦点: 拱门像彩虹一样从水中码头吸引到东侧的目光（而斜拉桥塔只有一个焦点）
体验
  • 从桥上看的视角: 门户般的体验（根据子选项开放或封闭）
  • 从 I-5 看的视角: 从 I-5 接近拱门时穿过拱门的感觉
  • 从河上看的视角: 连接到东侧水中码头，河道内可见拱门

子选项

无支撑贯穿拱门

关键属性：
  • 主要特征: 平行垂直拱门，顶部开放
  • 独特性: 波特兰独有
  • 桥上体验: 开放门户
  • 从 I-5 看的视角: 从 I-5 接近拱门时穿过拱门下方的感觉
  • 从河上看的视角: 独特的拱门连接到河道视野范围内的水中码头
Unbraced Vertical Arch, traveling east on the Burnside Bridge.
Unbraced Vertical Arch bridge over river, city buildings in the background.
View from the pedestrian and bicycle section of the bridge, looking east.
Unbraced Vertical Arch bridge straddles the I-5 corridor.

支撑篮柄拱门

关键属性：
  • 主要特征: 拱门向内倾斜并在拱门顶部相接
  • 独特性: 波特兰现有市中心桥梁所独有
  • 桥上体验: 封闭或格子门廊
  • 从 I-5 看的视角: 从 I-5 接近拱门时穿过拱门下方的感觉
  • 从河上看的视角: 独特的拱门连接到河道视野内的水中码头
Braced Basket-Handle Arch, traveling east on the Burnside Bridge.
Braced Basket-Handle Arch bridge over river, city buildings in the background.
View from the pedestrian and bicycle section of the bridge, looking east.
Braced Basket-Handle Arch bridge straddles the I-5 corridor.

篮柄拱有两种尺寸，短的或长的。短和长选项之间的主要区别在于比例。长选项长 150 英尺，高 20 英尺。 使用绿色圆圈箭头切换看看不同高度的桥梁选项。

Comparison of bridge lengths: Shows the short option of the Braced Basket-Handle Arch. View is from the bridge, looking east.
短的
Comparison of bridge lengths: Shows the long option of the Braced Basket-Handle Arch. View is from the bridge, looking east.
长的
Comparison of pedestrian and bicycle sections: Shows the short option of the Braced Basket-Handle Arch. View is from the pedestrian and bicycle section of the bridge, looking east.
短的
Comparison of pedestrian and bicycle sections: Shows the long option of the Braced Basket-Handle Arch. View is from the pedestrian and bicycle section of the bridge, looking east.
长的
Comparison from I-5 view: Shows the short option of the Braced Basket-Handle Arch. View is from the I-5, looking north.
短的
Comparison from I-5 view: Shows the long option of the Braced Basket-Handle Arch. View is from the I-5, looking north.
长的

支撑垂直拱门

关键属性：
  • 主要特征: P顶部通过交叉支撑连接的平行垂直拱
  • 独特性: 类似于波特兰的弗里蒙特大桥
  • 桥上体验: 封闭或穿过门户的感觉
  • 从 I-5 看的视角: 从 I-5 接近时穿过拱门的感觉
  • 从河上看的视角: 独特的拱门连接到河道视野内的水中码头
Braced Vertical Arch, traveling east on the Burnside Bridge.
Braced Vertical Arch bridge over river, city buildings in the background.
View from the pedestrian and bicycle section of the bridge, looking east.
Braced Vertical Arch bridge straddles the I-5 corridor.

支撑垂直拱门有两种尺寸，短的或长的。短的和长的选项之间的主要区别在于比例。长的选项长 150 英尺，高 20 英尺。 使用绿色圆圈箭头切换看看不同高度的桥梁选项。

Comparison of bridge lengths: Shows the short option of the Braced Vertical Arch. View is from the bridge, looking east.
短的
Comparison of bridge lengths: Shows the long option of the Braced Vertical Arch. View is from the bridge, looking east.
长的
Comparison of pedestrian and bicycle sections: Shows the short option of the Braced Vertical Arch. View is from the pedestrian and bicycle section of the bridge, looking east.
短的
Comparison of pedestrian and bicycle sections: Shows the long option of the Braced Vertical Arch. View is from the pedestrian and bicycle section of the bridge, looking east.
长的
Comparison from I-5 view: Shows the short option of the Braced Vertical Arch. View is from the I-5, looking north.
短的
Comparison from I-5 view: Shows the long option of the Braced Braced Vertical Arch. View is from the I-5, looking north.
长的
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