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Full-Text Articles in Engineering
Linearly Unbiased Estimation Combined With Jc Method For The Carbonation Contamination Of Some Concrete Bridges In Taipei, Ming-Te Liang, Guo-Fan Zhao, Yen-Sheng Liao, Chih-Hsin Liang
Linearly Unbiased Estimation Combined With Jc Method For The Carbonation Contamination Of Some Concrete Bridges In Taipei, Ming-Te Liang, Guo-Fan Zhao, Yen-Sheng Liao, Chih-Hsin Liang
Journal of Marine Science and Technology
The main purpose of this investigation was to study the durability evaluations of existing concrete bridges due to carbonation contamination. The linearly unbiased estimation method associated with the JC method developed by the Joint Committee on Structural Safety was adopted to predict the mean value and standard deviation of the normal distribution for the carbonation depths and cover thickness of concrete bridges. The reliability index (β) and failure probability (Pf) of concrete bridges were also evaluated. Since the linearly unbiased estimation method is very suitable for analyzing a small number of specimens obtained from practical engineering problems, the unknown parameters …
On The Free Terms Of The Dual Ben For The Two And Three-Dimensional Laplace Problems, Jeng-Tzong Chen, Shyh-Rong Kuo, Wei-Chih Chen, Li-Wei Liu
On The Free Terms Of The Dual Ben For The Two And Three-Dimensional Laplace Problems, Jeng-Tzong Chen, Shyh-Rong Kuo, Wei-Chih Chen, Li-Wei Liu
Journal of Marine Science and Technology
A dual integral formulation for the Laplace problem with a smooth boundary is derived by using the contour approach surrounding the singularity. It is found that using the contour approach the jump terms come half and half from the free terms in the L and M kernel integrations for the two-dimensional case, which is different from the limiting process by approaching an interior point to a boundary point where the jump terms come totally from the L kernel only. The definition of the Hadamard principal value for hypersingular integral at the collocation point of a smooth boundary is extended to …
Applying Fuzzy Mathematics To Evaluating The Membership Of Existing Reinforced Concrete Bridges In Taipei, Ming-Te Liang, Jai-He Wu, Chih-Hsin Liang
Applying Fuzzy Mathematics To Evaluating The Membership Of Existing Reinforced Concrete Bridges In Taipei, Ming-Te Liang, Jai-He Wu, Chih-Hsin Liang
Journal of Marine Science and Technology
In this study, the concept of fuzzy mathematics was applied to the damage evaluation of existing reinforced concrete (RC) bridges. The partition rule of evaluation grade was used to divide the evaluation results. The damage state of existing RC bridges was carried out using a double layer fuzzy synthesis evaluation. Moreover, based on the results of the synthesis evaluation, the damage state of existing RC bridges was thoroughly partitioned. According to the evaluation results, the double-layer synthesis evaluation of fuzzy for the damage of RC bridge is definitely useful. The evaluation results are also offered as the basis for strategy …
Low-Impact Development:An Innovative Alternative Approach To Stormwater Management, Chao-Hsien Liaw, Mow-Soung Cheng, Yao-Lung Tsai
Low-Impact Development:An Innovative Alternative Approach To Stormwater Management, Chao-Hsien Liaw, Mow-Soung Cheng, Yao-Lung Tsai
Journal of Marine Science and Technology
To assist local governments in their efforts to develop more effective stormwater management programs, an innovative comprehensive approach to stormwater management referred to as Low-Impact Development (LID) has been developed. Low-Impact Development technology employs microscale and distributed management techniques. This paper briefly outlines the development of LID technology and discusses its basic hydrological control principles. However, LID's source control techniques are an economical common sense approach that can be used to better manage new development or retrofit existing development. We believe that this new approach is a significant step forward towards advancing the state-of-the-art of stormwater management and will be …