نتایج جستجو برای: cold formed steel cfs

تعداد نتایج: 346034  

Journal: :Engineering Structures 2021

Performance-based earthquake engineering (PBEE) provides a robust alternative to traditional design. PBEE enables engineers estimate expected damage, repair costs, and economic losses due downtime for candidate design, potentially leading novel new designs or retrofit solutions. With the increasing application of light-frame structural systems, such as cold-formed steel (CFS) panels, in residen...

2015
K. S. Sivakumaran Bo Chen

The floor beams of steel buildings, cold-formed steel floor joists in particular, often require large web openings, which may affect their shear capacities. A cost effective way to mitigate the detrimental effects of such openings is to weld/fasten reinforcements. A difficulty associated with an experimental investigation to establish suitable reinforcement schemes for openings in shear zone is...

Journal: :Engineering Structures 2021

Built-up nested channel (NC) members, which are made of asymmetric cold-formed steel (CFS) lipped sections commonly used in various building applications Australia. The aim this research study is to provide suitable design guidelines for NC compression fail by global or local–global interaction buckling. Firstly, the rules current CFS standards and recently published studies were reviewed, thei...

2002
B. W. Schafer

Open cross-section, thin-walled, cold-formed steel columns have at least three competing buckling modes: local, distortional, and Euler ~i.e., flexural or flexural-torsional! buckling. Closed-form prediction of the buckling stress in the local mode, including interaction of the connected elements, and the distortional mode, including consideration of the elastic and geometric stiffness at the w...

Journal: :Buildings 2022

The use of cold-formed steel (CFS) members in structural engineering has been on the increase recently due to a wide range benefits. placement electrical and/or plumbing installations within floor or wall thickness requires that are being manufactured with holes along web, inevitably affecting their resistance. This article aims at providing useful and comprehensive overview existing literature...

Journal: :Thin-walled Structures 2021

The current design methods for built-up back-to-back cold-formed steel (CFS) channel compression members are considered inadequate despite several research studies in recent times. These have proposed improved DSM based equations, however, they general led to predictions of varying accuracy. Further, there were some contradicting observations regarding the effects screw connections on their beh...

Journal: :Thin-walled Structures 2021

Cold-formed steel (CFS) channels with edge-stiffened web holes are widely used as flooring joists and bearers in industrial buildings their flanges fastened most cases. This prevents the rotation of increases crippling capacity. In literature, no information is available on capacity such CFS holes. study presents results 36 new tests which were conducted under support subjected to two-flange lo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و فرهنگ - دانشکده مهندسی عمران 1393

مقاطع فولادی سرد نورد شده (cold-formed steel) با مقطع c شکل علاوه بر اینکه به عنوان اعضای اصلی و باربر سازه های فولادی سبک (lsf) استفاده می شوند می توانند به عنوان تیرچه در کف ساختمان های متداول و درجای فولادی و بتنی نیز استفاده شوند. از مزایای این تیرچه ها می توان به سبک بودن، سهولت در نصب، بالاتر بردن سرعت اجرا و کاهش هزینه های ساخت اشاره نمود. همچنین ایجاد بازشو در جان می تواند فضای مناسبی ج...

Journal: :Fire and Materials 2021

Lightweight cold-formed steel (CFS) construction solutions are increasingly adopted in low and mid-rise buildings. Many different materials used to construct CFS wall systems, without a full understanding of their thermal properties. For many these materials, only ambient temperature properties available from manufacturers. This creates difficulty classifying the for use at elevated temperature...

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