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Study for Structure System and Structure Performance of Curve Extradosde Cable-stayed Bridges in the Mountains

Author: YangFei
Tutor: HeShuanHai；YangZuo
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Curve Partially Cable Partially Cable Structural system Side span ratio Tower height Main beam suitable stiffness Static characteristics Dynamic characteristics
CLC: U448.27
Type: Master's thesis
Year: 2011
Downloads: 47
Quote: 1
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Abstract


The part of the cable-stayed bridge is a force characteristics between the type of a bridge between the continuous beam bridge and general cable-stayed bridge, the cable-stayed bridge with a good portion of the curve to adapt to the requirements of mountainous terrain limits and Directions linear performance, so get people more and more attention. Partially Cable based on the current rapid development force characteristic curve part of the cable-stayed bridge, structural system analysis studies, trying to solve a common problem in the curved part of the cable-stayed bridge design process, and propose design ideas. Firstly the part of the cable-stayed bridge and the curved part of the origin and development of the cable-stayed bridge position briefly, a more detailed statistical survey engineering instance constructor, structure, structural system and structural performance development and research status of a more detailed investigation, and part of the cable-stayed the necessity of the development curve and in the main contents of the structure of the system and the structure of performance. 2, in order to study the characteristics of the part of the cable-stayed bridge, on the part of the cable-stayed bridge with continuous rigid frame, and the general cable-stayed bridge features a comparative analysis, summarizes some of the cable-stayed bridge in the form of structural system, as well as the portion of the curve oblique the pull bridge various forms of structural system characteristics, and single-Box Three Rooms single cable plane curve part of the cable-stayed bridge two static characteristics of the structural system. Structural performance parameters, analog beam bridge cross on the edge of the curve part of the cable-stayed bridge than a reasonable review and summarize. Analysis of the relationship between the height of the tower in the part of the cable-stayed bridge with the main beam stiffness, summarizes the appropriate tower height on the part of the cable-stayed bridge, compared with Japanese norms. Tower type part of the cable-stayed bridge characteristics were analyzed, and the single box of three rooms with single cable plane curve part of the cable-stayed bridge tower height of the impact of changes in the structure of the analysis. By the statistics of the part of the cable-stayed bridge has been built and standardized contrast with Japan, on the curve part of the cable-stayed bridge suitable main beam height analysis, survey Partially Cable Curved beam bottom curve Analysis. 4, this article on the curved part of the static and dynamic characteristics of the cable-stayed bridge straight bridge comparative analysis, the focus of the static analysis of the characteristics of the curved part of the cable-stayed bridge geometric nonlinear structural stability; momentum analysis portion of the curve cable-stayed bridge with the radius of curvature of the changes in structure from the vibration characteristics of the characteristics, and different vibration characteristics of the structural system characteristics, and focus on analysis of the vibration characteristics of wind and seismic aspects concern. Curve part of the cable-stayed bridge design process, according to the results of this research are summarized and presented its considerations of the design process, draw the design process flowchart.

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Cable-stayed bridge
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