Cover Picture: Steel Construction 2/2021

Cover Picture.

On Cold-Formed Steel Construction

Powder-actuated (also referred to as low velocity or powder-driven) fasteners are commonly used to attach cold-formed steel framing members, usually a track, to a concrete or structural steel support. Although commonly used, their behavior is less well understood than other fasteners such as screws, bolts and welds. The AISI Cold-Formed Steel Design Manual does not explicitly address powder act...

Cover Picture Story: Experiments with Modular State Spaces

The main analysis techniques for critical systems use state space exploration. However, one is often quickly limited by the so-called state space explosion problem, even if the systems models are relatively small. Several methods have been proposed to tackle this problem in order to get a manageable state space. One of these takes advantage of the modular structure of the model in order to buil...

Design and Construction of Steel Diagrid Structures

The diagrid structural system has been widely used for recent tall buildings due to the structural efficiency and aesthetic potential provided by the unique geometric configuration of the system. This paper presents a stiffness-based design methodology for determining preliminary member sizes of steel diagrid structures for tall buildings. The methodology is applied to diagrids of various heigh...

Determining Optimal Risk Assessment Model in Construction Projects (Case study: steel plant construction project)

Introduction: Identifying occupational hazards and managing occupational safety and health risks is the most important mission and responsibility of the health and safety management system in organizations and adopting coded plans to achieve this is the key to continuously improving this system and promoting it. Method: This descriptive-analytic research has been written to determine the optim...