拱桥演习题和谜底(国外英文资料).docVIP

拱桥练习题和答案(国外英文资料) The arch A, fills up the topic According to the type of building on the arch, the arch bridge can be divided into: real and empty. 2, according to the location of the bridge can be divided into: deck type, half through bridge, concrete-filled. 3, according to the arched cross sectional form, can be divided into: slab arch, rib arch, box arch, hyperbolic arch? And so on. 4, the design of the arch bridge is four, which is: the height of the top of the structure, the height of the starting line, Base elevation and bridge elevation. The arch bridge is used in the shape of a suspension line, a parabola and a circular arc. There are many ways of classifying the arch bridge, which can be divided into static and static arch. The span ratio of the arch bridge is the ratio of the computed vector to the computed span. The thrust of the arch decreases as the cross ratio increases. The bridge is dominated by the bending moment and shear force, and the arch bridge is dominated by the axial pressure. The effect of the stuffing on the arch is to increase the load distribution area of the vehicle and reduce the impact of vehicle load. The force state of the unhinge arch bridge is more uniform than the force state of the three-hinged arch bridge, and the overall stiffness is large 11, when the load and arch span and at the same time, the construction, and so on and so forth in the f/L and f/L = = 1/3 of the arch bridge as compared to 1/8 of the arch bridge, the former of the horizontal force is smaller than the latter _ _______. The limit of concrete concrete arch bridge is about __500__ meter, the economic span ___100-300________meters. The steel arch bridge is about 1200__ meters, and the economic span ___300-500___. 13, the cable sling and cantilever fastening construction method adopted by the changzhou changjiang bridge. The most important feature of the composite system arch bridge is the structure of the bridge, and the main arch structure forms the total joi