Diaphragm Behavior of Deconstructable Composite Floor Systems
نویسندگان
چکیده
This study investigates the seismic behavior of deconstructable composite steel/concrete floor systems consisting of precast concrete planks and deconstructable clamping connections attaching the planks to the steel floor beams. The system is proposed to promote sustainable design of composite steel/concrete floor systems in steel buildings via reuse of the structural steel and concrete components at the end of the useful life of buildings. Finite element models representing a full-scale diaphragm were developed and analyzed. The load-displacement curves under cyclic loading present ductile diaphragm behavior of the proposed system under seismic loading. This behavior could be attributed to the observed limit states that include relative movement between adjacent planks and slip of the clamps that connect the steel girder and the girder plank, both of which occur after the frictional resistance is overcome.
منابع مشابه
Investigation of the Rigidity of Floor Diaphragms on the Behavior of Concrete Tall Buildings with Staggered Shear Walls under Lateral Loading
In most cases, structural engineers assume a concrete floor to be a rigid diaphragm. Although this simplification is in most cases acceptable, it should be noted that such an assumption may be distrusted due to certain problems. Concrete structures with staggered shear walls are among those whose analysis should be conducted with special concern for the behavior of their floor diaphragms. Howev...
متن کاملInvestigation of the Rigidity of Floor Diaphragms on the Behavior of Concrete Tall Buildings with Staggered Shear Walls under Lateral Loading
In most cases, structural engineers assume a concrete floor to be a rigid diaphragm. Although this simplification is in most cases acceptable, it should be noted that such an assumption may be distrusted due to certain problems. Concrete structures with staggered shear walls are among those whose analysis should be conducted with special concern for the behavior of their floor diaphragms. Howev...
متن کاملT-shaped mesh improvisation for laparoscopic ventral mesh rectopexy: a novel technique
BACKGROUND Laparoscopic ventral mesh rectopexy using a composite mesh is a technique gaining more recognition for management of pelvic floor disorders such as full thickness rectal prolapse, obstructive defecation symptoms and vaginal vault prolapse. A recent Cochrane review concluded that laparoscopic rectopexy results in fewer postoperative complications and an earlier discharge1 over open me...
متن کاملInvestigation of Nonlinear Behavior of Composite Bracing Structures with Concrete Columns and Steel Beams (RCS) Applying Finite Element Method
The composite structural system (RCS) is a new type of moment frame, which is including a combination of concrete columns (RC) and steel beams (S). These structural systems have the advantages of both concrete and steel frames [1]. In previous research on composite structures, there are some studies regarding RCS composite conections, but there is no investigation about seismic resisting system...
متن کاملSimulation and Modeling of a High Sensitivity Micro-electro-mechanical Systems Capacitive Pressure Sensor with Small Size and Clamped Square Diaphragm
This paper proposes a Micro-electro-mechanical (MEMS) capacitive pressure sensor that relies on the movable electrode displaced like a flat plate equal to the maximum center deflection of diaphragm. The diaphragm, movable electrode and mechanical coupling are made of polysilicon, gold and Si3N4, respectively. The fixed electrode is gold and the substrate is Pyrex glass. This proposed method inc...
متن کامل