Abstract Flood-induced scours near the pier foundation are an adverse phenomenon that may cause collapse of bridges. However, in seismic design bridges, scour impact is commonly ignored when evaluating response. This study aims to quantify effect flood-induced on nonlinear static and dynamic behaviors typical reinforced concrete For this regard, three-dimensional finite element models two- thre...

A pushover analysis method based on semirigid connection concept is developed and the colliding bodies optimization algorithm is employed to find optimum seismic design of frame structures. Two numerical examples from the literature are studied. The results of the new algorithm are compared to the conventional design methods to show the power or weakness of the algorithm.

Abstract Indonesia is located at the confluence of three main tectonic plates which makes it one countries with highest earthquake risk in world. Recorded experiences has showed that cause damage to buildings particularly multi-storey building structures. The purpose this study determine performance level reinforced concrete structures using a performance-based design method based on ATC-40 and...

while significant advances have been made on the blast analysis, applications of nonlinear analysis of structures under explosion have been limited to the frames and structural behavior of bridges subjected to blast is an issue that has attracted attention of researchers in recent years. nonlinear dynamic analysis can be lead to the most accurate responses of the structure under blast but the u...

In this research, the modal parameters of a beam in free-free condition are extracted by performing different experiments in laboratory. For this purpose, two different techniques are employed. The first methodology is considered as a time domain method in Operational Modal Analysis. While the other one is frequency domain impact hammer test which is categorized as an Experimental Modal Analysi...

In eccentrically braced frames (EBFs) subjected to large lateral demands, inelastic actions are mostly concentrated in shear links. The links vary in size and, when employed in frames, are known to be subjected to combined tension/compression and shear stress states that influence their strength, low-cycle fatigue behavior, and fracture characteristics. Despite their significance as the main en...

In this article, the applicability of mode-adaptive bidirectional pushover analysis (MABPA) to base-isolated irregular buildings was evaluated. The point updated MABPA is that peaks first and second modal responses are predicted considering energy balance during a half cycle structural response. numerical examples, main building former Uto City Hall, which severely damaged in 2016 Kumamoto eart...

Seismic resiliency of new buildings has improved over the years due to enhancements in seismic codes and design practices. However, existing buildings designed and built under earlier codes are vulnerable and require a performance-based screening and retrofit prioritization. The performance modifiers considered are soft story, weak story, and the quality of construction, which are collated thro...

Performance based seismic design (PBSD) is an alternative to code based approaches to design or evaluation of structures that fail to yield a more direct relationship between a seismic event and the corresponding structural performance of a building; this generally leads to over-conservatism. This paper presents a case study on the alternative procedures used in the performance based design of ...