This paper provides an overview of structural and non-structural alternatives for accommodating larger floods at dams. The first two alternatives discussed, raising the height of the project and/or lowering the reservoir pool, can be used to prevent overtopping by increasing the available floodwater detention storage in the reservoir. Data gathered by an ASCE task committee survey on modificati...

In this work, closed-form expressions for the buckling loads of a weakened column with different boundary conditions are presented. The cracked-column model is based on the well-known method consisting of dividing the column into two segments connected by a rotational linear spring whose flexibility is related to the crack size and the geometry of the cross section. For the formulation of close...

Load and resistance factor design (LRFD) is widely used in building codes for reliability design. In the calculation of load factors, third-moment method (3M) has been proposed to overcome shortcomings (e.g., inevitable iterative computation, requirement probability density functions (PDFs) random variables) other methods. With existing 3M method, simplified one PDFs variables are not required....

In order to improve the identification accuracy of damage detection and evaluation based on vibration response, this paper presents a structural method fractal dimension, data fusion revised counter-propagation network (RCPN). Firstly, dimensions original signal response are extracted through preprocessing. Secondly, first-time (i.e., feature-level fusion) is carried out, after which these used...

Doğrusal olmayan statik prosedür (NSP) veya itme analizi basitliği nedeniyle, yapısal ve elemanların performanslarının belirlenmesi için kullanılmaktadır. Modelleme sırasında yapıdaki her bir elemanın doğrusal özelliklerinin deformasyon kapasitelerinin gerekmektedir. İtme analizi, ASCE 41-17 yönetmeliğine göre tanımlanan plastik mafsal özellikleri ele alınarak gerçekleştirilir. Programlara sını...

Abstract We evaluate the seismic performance of modern seismically designed wood light-frame (WLF) buildings, considering regional hazard characteristics that influence ground motion duration and frequency content and, thus, risk. Results show WLF building response correlates strongly with spectral shape but weakly duration. Due to flatter motions from subduction events, buildings at sites affe...

Abstract A nine-story reinforced concrete dual system (wall-frame) building located in Bucharest, categorized as plan-asymmetric and designed according to the provisions of Romanian European codes was studied. The criteria for regularity plan were verified comparatively three (Eurocode 8, ASCE 7-16 seismic design code P100-1-2013). behaviour studied further investigated by detailed nonlinear st...

in order to improve the performance of irrigation networks, provide higher flexibility levels and improve water delivery methods, application of automatic control systems is suggested. in the coarse of the present study, a mathematical model of automatic pivot weir as based on pid control logic in combination with icss hydrodynamic model is developed. the developed model was tested under high f...