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The Static and Dynamical Characteristics Analyze of the Concrete-Filled Steel Tubular Arch Flume

Author: HanChao
Tutor: ZhangQiHai
School: Shandong University
Course: Hydraulic Structure Engineering
Keywords: Steel pipe concrete arch aqueduct Nonlinear Static Analysis Stability Since the vibration modes
CLC: TV672.3
Type: Master's thesis
Year: 2008
Downloads: 109
Quote: 3
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Abstract


Steel pipe concrete is a new form of a combination of materials, it has high bearing capacity, ductility and toughness, with significant economic benefits is widely used in the field of high-rise buildings and highways arch bridge and the construction is simple and many other advantages, but the field of water projects has been not been applied. In view of the aqueduct and bridge support structure has a certain similarity, the authors believe that we can draw on the experience of the development of the theory of CFST Arch Bridge, combined with the structural characteristics of the aqueduct to the development of a new type of aqueduct - steel pipe concrete arch aqueduct. Aqueduct Project in Shandong Province, Jiaodong water supply projects in a design flow, design water level and engineering geological conditions of research background information, combined with the structural characteristics of CFST Arch Bridge and Aqueduct development of steel pipe concrete arch aqueduct designed by CFST the structural characteristics of the arch aqueduct, the theory of static characteristics and dynamic characteristics of exploratory analysis, to provide a theoretical basis for its future development, and promote the development and application of this new aqueduct. The study mainly the following points: (1) study to determine the structure type of steel pipe concrete arch aqueduct. In this paper, on the basis of analysis of CFST arch bridge structure and the structural features of the aqueduct, explore research steel pipe concrete arch aqueduct structure type, determine the structure of the tectonic pattern, the arrangement of the various components and the cross-sectional dimensions. (2) steel pipe concrete arch aqueduct nonlinear static analysis. To establish the structure of the finite element model using the finite element analysis software ANSYS analysis under different conditions structural deformation, displacement and force aqueduct structure static performance. (3) steel pipe concrete arch aqueduct stability analysis. Analysis of the stability factor of the structure under different conditions and instability modes. The analysis showed that: 1 order stability coefficients meet regulatory requirements, an order instability modes are plane instability. (4) the stability of steel pipe concrete arch aqueduct factors. The factors affect Aqueduct stability: rib rigid boom stiffness Crossbars layout and Tied stiffness. Aqueduct stability with increasing rib rigid showed an increasing trend, growing faster. The boom stiffness Aqueduct stability smaller. Crossbars layout and Tied stiffness has important implications on the the aqueduct overall stability. (5) steel pipe concrete arch aqueduct from vibration performance. Aqueduct 10 order from the vibration modes of vertical bending vibration, the groove body surface within Rib roll vibration, Rib-plane bending vibration and groove body torsional vibration of the four types. Aqueduct plane bending vibration-based modes.

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CLC: > Industrial Technology > Hydraulic Engineering > Water control,hydraulic structures > Water, water diversion project > Conveyance structures > Aqueduct
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