![broken image](http://user-assets.sxlcdn.com/images/155870/FgdSI14ZixXLG0KpgMMTf1mR2JIK.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
Bridge general view
![broken image](http://user-assets.sxlcdn.com/images/155870/FkM6AQ8Q4XMMPWdfEmGkHSH24DGy.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
Plan view
![broken image](http://user-assets.sxlcdn.com/images/155870/FognFwHA7dtXp1tBVLJpdD7859z3.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/format/png)
Elevation
![broken image](http://user-assets.sxlcdn.com/images/155870/FveUDVRNs9KslfZCfZ4gZZDabEKk.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
View from below with negative arch working in tension
![broken image](http://user-assets.sxlcdn.com/images/155870/FoIHWJNSt_Go4cguWgYg0tga5tzc.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
The plates are assembled together with vertical posts
![broken image](http://user-assets.sxlcdn.com/images/155870/FkG6LFM-I8dzdtT6XiDE6DnnEm3v.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
The vertical posts together with horizontal plates form a truss box立柱与水平板共同构成箱桁.
The shape of the plates are designed according to the bending moment shape in the deck (the following image shows a simplified example)桥面形状根据其弯矩图进行设计 (简图如下所示) :
![broken image](http://user-assets.sxlcdn.com/images/155870/FsNV5ZKD9g1tsqoJutXi-3AmcXMP.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
It is inspired by the steel structure of XIXth century, where the plates are accumulated and connected with rivets, following the forces density设计灵感来自19世纪钢结构中力密度钢板由铆钉连接 :
![broken image](http://user-assets.sxlcdn.com/images/155870/Fi5Pq32eQFVzGUitkK5udwicjuhw.jpg?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/interlace/1/format/jpg)
![broken image](http://user-assets.sxlcdn.com/images/155870/FnJBp9lxDzViSIEEm_M3P3KPRk2T.jpg?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/interlace/1/format/jpg)
Typical section of a steel beam with a reinforced flange, built as an accumulation of plates带加强翼的钢梁标准断面构成面 :
![broken image](http://user-assets.sxlcdn.com/images/155870/FsF15fX01iWgUqCOIcL4u_VO7p8O.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/format/png)
![broken image](http://user-assets.sxlcdn.com/images/155870/FnuInSv7jHAXOVBzb1x2_Q6vN6tW.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/format/png)
Calculation model
![broken image](http://user-assets.sxlcdn.com/images/155870/Ft8XarJsappe5WCNS9HA3f480V-7.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
Stresses in the steel plates
![broken image](http://user-assets.sxlcdn.com/images/155870/FrS1I2VXGolbPjneJGm3dVK6tx2A.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)
Axial force in the arch
Some diagonals are used where the shear force between plates is very important板间有剪力的地方使用斜杆 :
![broken image](http://user-assets.sxlcdn.com/images/155870/Fi5mTdv7yikLdUGAgX-iTTpdy6m9.png?imageMogr2/strip/auto-orient/thumbnail/1200x9000>/quality/90!/format/png)