This paper presents quantitative information on the effectiveness of seismic retrofit solutions using bilinear oil dampers for seismically deficient existing tall steel buildings. For this purpose, a benchmark 40-story space moment-resisting frame building is studied that represents 1970s design practice in North America. Rigorous performance assessment based ASCE 41 recommendations reveals hig...

In this study, constant-ductility optimization algorithm under a family of earthquake ground motions is utilized to achieve uniform damage distribution over the height of steel moment resisting frames (SMRFs). SMRF structures with stiffness-degrading hysteric behavior are modeled as single-bay generic frame in which the plastic hinge is confined only at the beam ends and the bottom of the first...

Although story mapping strategy has been shown to be beneficial in many reading comprehension classes, the benefits of this technique have not been thoroughly investigated in L2 writing research. The small number of previous studies (e.g., Li, 2007; Brunner, 2010) have found the potential benefits of using story mapping strategy on students’ writing performance, but they did not focus on differ...

The present study assesses the seismic performance of steel moment resisting frames (SMFs) retrofitted with different bracing systems. Two structural configurations were utilized: ordinary concentrically braces (OCBFs), buckling-restrained braces (BRBFs). A 7-story and 18-story steel perimeter SMFs were designed with insufficient lateral stiffness to satisfy code drift limitations in high seism...

Sadegh Hedayat is one of the most renowned contemporary writers whose various works are discussed by many literary critics. His short story "The Case of Chrystal (rock) Salt" is a humorous and satirical story is collected in Tittle-tattle alongside with five more short stories. The narrator of the story explains the history of human civilization and evolution based on his own perspective. “The ...

Branching story games have gained popularity for creating unique playing experiences by adapting story content in response to user actions. Research in interactive narrative (IN) uses automated planning to generate story plans for a given story problem. However, a story planner can generate multiple story plan solutions, all of which equally-satisfy the story problem definition but contain diff...

The front cover shows ABB serving the cement manufacturing industry, which it has done since 1961 with turnkey installations, electrical equipment and automation systems. In 1990, ABB recognised the MES (Manufacturing Execution Systems) business area as a natural extension to its technology portfolio. Since then, ABB has provided added value solutions that are independent from the installed pro...

The paper discusses how joint damage and deterioration affect the seismic response of existing reinforced concrete frames with sub-standard beam–column joints. available simplified modeling techniques are critically reviewed to propose a robust, yet computationally efficient, technique for simulating nonlinear behavior substandard Improvements over models include simulation cyclic stiffness str...