Influence of hollow-core wall panels on the cyclic behavior of different types of steel framing systems

PCI Journal ◽  
2021 ◽  
Author(s):  
Parsa Monfaredi ◽  
Mehdi Nazarpour ◽  
Abdoreza Moghadam
Keyword(s):  
Cyclic Behavior ◽  
Hollow Core ◽  
Steel Framing ◽  
Wall Panels ◽  
Different Types

DEFORMATION AND CRACKING OF THE PLATFORM JOINT OF THE PREFABRICATED-MONOLITHICRC BUILDING FRAME

2020 ◽  
Vol 90 (4) ◽  
pp. 38-47
Author(s):  
VL.I. KOLCHUNOV ◽  
◽  
D.V. MARTYNENKO ◽  
Keyword(s):  
Reinforced Concrete ◽  
Plane Stress State ◽  
Hollow Core ◽  
Finite Element Scheme ◽  
Element Scheme ◽  
Joint Structure ◽  
Numerical Studies ◽  
Distributed Load ◽  
Different Types ◽  
Design Characteristics

A computational model and the results of numerical studies of the structure of a platform joint in a reinforced concrete precast-monolithic frame of a building from panel-frame elements of industrial production are presented. Modeling of the plane stress state of the joint structure is carried out by a finite element scheme, using finite elements of different types and a nonlinear law of deformation to determine the design characteristics of reinforced concrete. The parameters of deformation of the platform joint structure at different loading levels, including stage-by-stage cracking and destruction, have been determined. The schemes of distribution and stress concentration zones in the characteristic sections of the platform joint are established when the distributed load is transferred from the frame of the panel-frame to the hollow-core floor panels and concrete for embedding the joint in the presence of a cavity in the frame frame for centering elements.

Evaluating the effects of different slab types on static and dynamic characteristics of structures

2021 ◽  
Vol 7 (2) ◽  
pp. 71
Author(s):  
Yılmaz Keleş ◽  
Hüseyin Kasap ◽  
Zeynep Yaman
Keyword(s):  
Dynamic Characteristics ◽  
Seismic Analysis ◽  
Seismic Load ◽  
Hollow Core ◽  
Base Shear ◽  
Finite Element Software ◽  
Local Soil ◽  
Different Types ◽  
Hollow Core Slab ◽  
Waffle Slab

In this study, the effect of different types of slabs on dynamic characteristics of structures under the lateral loading was investigated. For this purpose, four different types of slabs namely, beamed slab, flat slab, one way ribbed (hollow core) slab and waffle slab have been modeled in buildings having 3, 4 and 5 storeys with the same geometric dimensions, in accordance to design and construction requirements (TS 500) and Turkish building seismic codes (TBDY, 2018). Seismic analysis calculations of the modeled buildings were done using the equivalent seismic load method. The assumed local soil class was taken from the geotechnical report as ZD. As a result of the analysis, natural periods, base shear forces, maximum horizontal displacements and relative storey drifts of the buildings were compared. Seismic analysis and calculations of the buildings were completed using SAP2000 finite element software.

scholarly journals Cyclic Behavior of Braced Concrete Frames: Experimental Investigation and Numerical Simulation

2015 ◽  
Vol 61 (2) ◽  
pp. 101-114
Author(s):  
Hadad S. Hadad ◽  
Ibrahim M. Metwally ◽  
Sameh El-Betar
Keyword(s):  
Numerical Simulation ◽  
Load Capacity ◽  
Shear Walls ◽  
Load Resistance ◽  
Lateral Load ◽  
Cyclic Behavior ◽  
Concrete Frames ◽  
Initial Stiffness ◽  
Infilled Frames ◽  
Different Types

Abstract RC shear walls have been widely used as the main lateral-load resisting system in medium and high-rise buildings because of their inherent large lateral stiffness and load resistance. But, in general, the energy dissipating capacity of RC shear walls is not very good and it has been found that using the bracing system gives good results. The main purpose of this paper is to study the effect of different types of bracing on the lateral load capacity of the frame. Also, the research contains a comparison between the braced and infilled frames to decide on the best system. The research scheme consists of four frames; the bare frame, two frames the first of which was braced with concrete, the second was braced with steel bracing and the fourth frame was infilled with solid cement bricks. All the specimens were tested under cyclic loading. The results gave some important conclusions; braced and infilled bare frames increased the lateral strength of the bare frame depending on the type of bracing and infill. Also, the different types of bracing and the infill increased the initial stiffness of the bare frame by a reasonable value. The energy dissipation for the braced and infilled frames is always higher than that for the bare frame up to failure. Also, numerical modeling was carried out with the nonlinear software platform (IDARC). The numerical results obtained with the calibrated nonlinear model are presented and compared with the experimental results. Good agreement was achieved between the numerical simulation and the test results.

scholarly journals Cyclic Behavior of Simple Models in Hypoplasticity and Plasticity with Nonlinear Kinematic Hardening

2021 ◽  
Vol 14 (6) ◽  
pp. 756-767
Author(s):  
Victor A. Kovtunenko ◽  
◽  
Erich Bauer ◽  
Jan Elias ◽  
Pavel Krejcı ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Cyclic Loading ◽  
Material Properties ◽  
Kinematic Hardening ◽  
Constitutive Relations ◽  
Cyclic Behavior ◽  
Well Posedness ◽  
Classical Concept ◽  
Different Types ◽  
Plastic Parts

The paper gives insights into modeling and well-posedness analysis driven by cyclic behavior of particular rate-independent constitutive equations based on the framework of hypoplasticity and on the elastoplastic concept with nonlinear kinematic hardening. Compared to the classical concept of elastoplasticity, in hypoplasticity there is no need to decompose the deformation into elastic and plastic parts. The two different types of nonlinear approaches show some similarities in the structure of the constitutive relations, which are relevant for describing irreversible material properties. These models exhibit unlimited ratchetting under cyclic loading. In numerical simulation it will be demonstrated, how a shakedown behavior under cyclic loading can be achieved with a slightly enhanced simple hypoplastic equations proposed by Bauer

scholarly journals Decrease of cold-formed slotted studs heat conductivity by slots shape modification

2019 ◽  
Vol 97 ◽  
pp. 06009
Author(s):  
Rafik Alekperov ◽  
Ivan Aksenov
Keyword(s):  
Residential Building ◽  
Comsol Multiphysics ◽  
Shape Modification ◽  
Element Analysis ◽  
Curtain Wall ◽  
Steel Members ◽  
Steel Framing ◽  
Load Carrying ◽  
Wall Panels ◽  
Cold Formed Steel

Cold-formed steel framing is gaining ground in Russia. Now it’s making attempts to adopt curtain wall panels with cold-formed slotted steel members in residential building. In view of cold Russian climate, a problem of mitigation of the cold bridge effect created by the steel have appeared. It’s proposed to improve steel members’ thermal performance by choice a new web holes shape. Stud models with different web holes configuration were investigated by means of fine element analysis in COMSOL Multiphysics software. Their thermal and load-carrying performance was compared with a standard slotted stud. Two promising pilot models were chosen for further experimental research. An experiment to compare heat conduction capacity of these pilot models and a standard slotted stud was carried out in the Laboratory of glass and facade constructions. The results of this experiment are presented in this article.

Cyclic Behavior Of Hollow-Core Diaphragm Subassemblies

PCI Journal ◽  
2019 ◽  
Vol 64 (2) ◽  
Author(s):  
Nelson M. Angel ◽  
Juan F. Correal ◽  
José I. Restrepo
Keyword(s):  
Cyclic Behavior ◽  
Hollow Core
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