الفهرس | Only 14 pages are availabe for public view |
Abstract This thesis presents an experimental investigation which studied the structural performance of ferrocement box shear wall strengthened with webs and subjected to vertical and lateral loads. To accomplish this objective, an experimental program was conducted. The experimental program comprised casting and testing of ten box ferrocement and reinforced shear walls were cast and cured for 28-days before testing, the dimensions of all test specimens were kept constant of dimensions 150x800x1500mm. After complete hardening of concrete, 28 days, the specimens were taken out of the curing room and left to dry for 24 hours. After drying, the specimens were painted with white paint to facilitate tracking of cracks upon testing. These walls are organized in four groups, group number one is the four specimens were control specimens using reinforced and ferrocement concrete while group number two is two specimens were supported with ribs as two box cross section, group number three is two specimens were ferrocement wall reinforced with expanded wire mesh and group number four is two specimens were ferrocement wall reinforced with welded wire mesh. The parameters of type of steel reinforcement; welded and expanded wire meshes and presence ribs were investigated on the structural responses failure in terms of; ultimate load, mode of failure, first crack load, service load and ductility ratio. The results showed superior high ultimate load and strength gain could be obtained by using ferrocement than reinforced concrete, the structural performance of the ferrocement box shear wall with webs (ribs) is better than those walls without ribs and the ferrocement walls reinforced with double layers of welded wire meshes has better structural behavior than those walls reinforced with expanded wire meshes. Also, all the tested walls were simulated using ANSYS program to study the behavior of the tested walls up to failure. Additionally comparing the results of the developed theoretical models with test results were presented and gave good results comparing with the experimental results. |