Iris Publishers Civil Engineering Open Access Journals

  Article on Covid-19 related issue in Iris Publishers COVID-19 pandemic is having many life-altering short and likely long-term effects. The COVID-19 pandemic has had a major impact on number of economical, ethical, legal, health services and social issues arise because of the virus rapidly spreading worldwide.  Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.  Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness. The best way to prevent and slow down transmission of covid-19 is protecting yourself by wearing mask and others from infection by washing your hands frequently and not touching your face. Most of the people recover from the acute phase of the disease. However, some people continue to experience a range of effects for months after recovery a...

  Iris Publishers - Open Access Journals of Civil and Structural Engineering Experimental and Numerical Evaluation of New Seismic Details for Connection of Post-tensioned Flat Slabs to Edge Steel Columns One type of structural systems that has received growing attention worldwide consists of flat slabs supported by steel columns. A key issue in these systems is the connection between slab and column. Although details for the connections of non-prestressed slabs are published frequently, but little details are reported for post-tensioned ones. In an experimental program, new details are proposed and examined for the connection of post-tensioned flat slab to edge steel column. The details include steel plates at the bottom and top of the slab, vertical stiffeners and vertical shear bolts. The connection is examined under cyclic lateral load test. The connection shows satisfactory seismic behavior, exhibits stable nonlinear response up to 3.5%drift ratio, and sustains gravity load cap...