Cost-based optimization of steel frame member sizing and connection type using dimension increasing search

2021 ◽  
Author(s):  
Bo Peng ◽  
Forest Flager ◽  
Steve Barg ◽  
Martin Fischer
Keyword(s):  
Steel Frame ◽  
Connection Type ◽  
Frame Member

Study on the End-Plate and Angle of Semi-Rigid Connection in the Steel Frame of Beam-Column

2011 ◽  
Vol 94-96 ◽  
pp. 872-876
Author(s):  
Ling Xu ◽  
Shuai Liu
Keyword(s):  
Bearing Capacity ◽  
Load Capacity ◽  
Steel Structure ◽  
Steel Frame ◽  
Experimental Results ◽  
End Plate ◽  
Rigid Connection ◽  
Connection Type ◽  
Plate Connection ◽  
The Ideal

Based on the investigation of end plate and angle of semi-rigid connection in the steel frame of beam-column, an analysis of two connection type damage phenomenons, stiffness, bearing capacity and ductility, and then with the experimental results concluded above, the similarity and differences between the two semi-rigid connections can be extensively discussed. And with that， it can naturally be concluded that the end-plate connection is a good load capacity and ductility properties of semi-rigid connection type. These for, the conclusion can provide test basis for the ideal steel structure semi-rig seismic node design and application.

Buckling Analysis of Offshore Jackets in Removal Operations

2011 ◽  
Author(s):  
Wenjing Xia ◽  
P. C. J. Hoogenboom
Keyword(s):  
Structural Analysis ◽  
Failure Mode ◽  
Current Practice ◽  
Buckling Analysis ◽  
Steel Frame ◽  
Frame Structures ◽  
Steel Frame Structures ◽  
Frame Member ◽  
Offshore Jackets

In analysis of the removal of offshore jackets an important failure mode is buckling. In current practice, a buckling check involves manual determination of the buckling lengths of each frame member. It is estimated that 5 to 10% of the man-hours in structural analysis of removal projects is spend on checking and correcting buckling lengths. Fortunately, an alternative method is available that does not require determining buckling lengths. In this paper it is shown how this method can be derived from the NORSOK standard for tubular steel frame structures. The method is demonstrated in a removal analysis of an offshore jacket. It is concluded that this method can be successfully applied.

scholarly journals Finite Particle Method-Based Collapse Simulation of Space Steel Frame Subjected to Earthquake Excitation

2018 ◽  
Vol 2018 ◽  
pp. 1-19
Author(s):  
Xiao-Hong Long ◽  
Rong Yue ◽  
Yong-Tao Ma ◽  
Jian Fan
Keyword(s):  
Nonlinear Problems ◽  
Particle Method ◽  
Steel Frame ◽  
Frame Structures ◽  
Response Analysis ◽  
Earthquake Excitation ◽  
Theoretical Derivation ◽  
Steel Frame Structures ◽  
Frame Member ◽  
Finite Particle

In the process of collapse failure of the space steel frame subjected to earthquake excitation, complex behaviors often are involved, including geometric nonlinearity, material nonlinearity, fracture, contact, and collisions. In view of the unique advantages of the finite particle method to analyze complex structural nonlinear problems, this paper utilized the finite particle method as the basic means of analysis and used MATLAB software for computational analysis. This paper first derived a finite particle method-based space steel frame model, conducted static analysis and dynamic response analysis under earthquake excitation, and compared findings with ANSYS analysis results to validate reliability. This paper established the fracture criterion and failure mode of a steel frame member. Theoretical derivation and numerical simulation indicate that the finite particle method is a feasible and effective way to simulate the collapse of space steel frame structures subjected to earthquake excitation. This method provides a new approach to study the collapse and anticollapse seismic design of space steel frame structures subjected to earthquake excitation.

Experimental behavior of steel frame connections

2010 ◽  
Vol 5 (1) ◽  
pp. 3-36 ◽  
Author(s):  
Miklos Iványi ◽  
Miklos Iványi ◽  
Peter Iványi
Keyword(s):  
Steel Frame ◽  
Experimental Behavior

THE GREEN ROOF THERMAL PERFORMANCE EVALUATION IN COMPARISON TO ASBESTOS CEMENT TILES APPLIED TO LIGHT STEEL FRAME BRAZILIAN BUILDINGS

2018 ◽  
Vol 12 (3) ◽  
pp. 288
Author(s):  
Angélica Felicidade Guião Marcato Costa ◽  
João Alexandre Paschoalin Filho ◽  
Tatiana Tucunduva Philipi Cortese ◽  
Brenda Chaves Coelho Leite
Keyword(s):  
Performance Evaluation ◽  
Relative Humidity ◽  
Heat Flow ◽  
Thermal Performance ◽  
Green Roof ◽  
Steel Frame ◽  
Internal Temperature ◽  
Green Cover ◽  
Asbestos Cement ◽  
Data Representative

This research aimed at comparing the thermal performance provided in experimental modules, one of which was performed with conventional cover, made of asbestos cement tiles; an another with green cover. The structure of the studied modules was executed using Light Steel Frame technique. As an experimental research, modules were built in a wide place, without the interference of shading. Instruments were installed in the inner part of the modules to measure the following data: air temperature, relative humidity. From the collected data, representative episodes have been chosen for the studies that aimed to compare the comfort provided by both modules, built with different roofs. As result, it was verified that the module with green roof had better performance than the module covered with asbestos cement tile in all selected episodes. The module covered with green roof maintained lower internal temperature variation throughout the days, indicating that the green roof has characteristic thermal insulation, reducing the heat flow from the roof.

scholarly journals Effects of Precast Cladding Systems on Dynamic Characteristics of Steel Frame Buildings by Ambient and Free Vibration Tests

2017 ◽  
Vol 2017 ◽  
pp. 1-20 ◽  
Author(s):  
Jun Ma ◽  
Shinji Nakata ◽  
Akihito Yoshida ◽  
Yukio Tamura
Keyword(s):  
Free Vibration ◽  
Dynamic Characteristics ◽  
Steel Frame ◽  
Ambient Vibration ◽  
Test Cases ◽  
Vibration Method ◽  
External Wall ◽  
Wide Range ◽  
Cladding Panels ◽  
Vibration Tests

Full-scale tests on a one-story steel frame structure with a typical precast cladding system using ambient and free vibration methods are described in detail. The cladding system is primarily composed of ALC (Autoclaved Lightweight Concrete) external wall cladding panels, gypsum plasterboard interior linings, and window glazing systems. Ten test cases including the bare steel frame and the steel frame with addition of different parts of the precast cladding system are prepared for detailed investigations. The amplitude-dependent dynamic characteristics of the test cases including natural frequencies and damping ratios determined from the tests are presented. The effects of the ALC external wall cladding panels, the gypsum plasterboard interior linings, and the window glazing systems on the stiffness and structural damping of the steel frame are discussed in detail. The effect of the precast cladding systems on the amplitude dependency of the dynamic characteristics and the tendencies of the dynamic parameters with respect to the structural response amplitude are investigated over a wide range. Furthermore, results estimated from the ambient vibration method are compared with those from the free vibration tests to evaluate the feasibility of the ambient vibration method.

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