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Probabilistic Limit State Design Method of Composite Steel-Concrete Beam Bridges

Author: LiHaiJun
Tutor: XuYue;WangChunSheng
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Steel - Concrete Composite Bridge Probabilistic limit state design Flexural capacity Stud Connectors Shear capacity
CLC: U441
Type: Master's thesis
Year: 2005
Downloads: 178
Quote: 2
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Abstract


Related specifications , literature and experimental research based formula plasticity theory of flexural capacity for analysis of composite beams and pegs connector shear capacity calculation of the comparative analysis of the formula to determine with in the combination of the basic formula for the statistical analysis of the beam bridge structure component resistance . The indirect method according to structural member resistance Statistics analysis , statistical analysis of three main factors impact composite beam bridge structure component resistance . First determine the material properties of the impact composite beam bridge structure component resistance uncertainty of a random variable uncertainty and geometric parameters of the statistical parameters of the random variable ; for computing model uncertainty , according to the collected composite beam test group of 62 domestic and international relevant test data and stud 125 to connect the pieces of two failure pattern group launched the test data , statistical calculations get a cross section of the composite beam flexural capacity of pegs connector shear capacity calculation model uncertainty of the statistical parameters of the random variable . The use of mathematical statistics, error propagation formula to derive the formula of the cross section of the composite beam flexural capacity of statistical parameters ( first class cross-section , for example ) . Shear capacity formula of statistical parameters and statistical parameters of the three main factors affecting the resistance connector according to this formula and pegs , integrated computing and analysis were obtained cross-section of the composite beam flexural capacity of pegs connector anti- shear capacity of statistical parameters . Connection to the cross section of the composite beam flexural capacity of pegs shear capacity based on statistical parameters , combined with the composite beam bridge dead load and live load effect statistical parameters calculated by first order second moment checking point method to determine the Partial Safety Factor corresponding effect of a combination of two effects , and then get a carrying capacity of bridge combination Bending_resistance of pegs connector shear capacity limit state design expression .

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics
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