Download or read book Structural Behaviour of Pre-cast Concrete Sandwich Panel Under Axial and Lateral Loading written by Abdelfattah Elnur Abbaker and published by . This book was released on 1999 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sandwich panel is a layered structural system composed of a low density core material bonded to and acting integrally with, a relatively thin high strength facing materials held together by shear connectors. Core material usually act as insulation material t reduce the temperature inside the building. The bending action due eccentric load or lateral load is resisted by the tensile and compressive forces developed in outer layers while shear forces are resisted by the shear connectors. Sandwich panels are used as exterior walls in multi unit, resedential, commercial and ware house building, providing structural and thermal efficient building element. In this study, the structural behaviour of reinforced concrete sandwich wall panel has been investigated experimently in pre and post-cracking phase. Each panel consists of two outer reinforced concrete layers, interconnecyed together by different layout reinforced concrete ribs, which act as shear connectors. Three layers of shear connectors have been selected for the study; these are continuous vertical concrete ribs and truss type layout ribs inclined at 45 o and 67.5 o with the vertical. Finite element method has been used in analysis for comparison with the experimental test results in the pre-packing phase and to determine the stress distribution developed in the different components of the sandwich panel under different loading conditions. Six specimen of reinforced concrete sandwich panels (two identical specimens for each shear connector layout) each pf size 1200 x 2400 mm (width x height) have been cast in the laborotary and tested in vertical position under incremental vertical axial, lateral, and combined axial and lateral loading. The effect of different shear connector layout on the overall structural behaviour of the panel is highlighted. Moreover the composite behaviour of the sandwich panels, the percentage of load transferred to the ribs and the crack pettern have been investigated and discussed. The structural response of the sandwich panel in term of deflections have been found equal to 35 mm, 27 mm, 22 mm for panels typa A,B and C respectively. The lateral collapse load of the tested panels, have been found equal to 97 KN, 40 KN and 45 KN for panels type A, B and C respectively. From the results obtained in this study, it has been found that the sandwich panels with very vertical shear connector has a better overall structural response as reflected in the integrity of the sandwich wall panels system under action of combined axial and lateral loads, in comparison to sandwich panels with inclined layout connectors.