Effects of Snow Load on Light-Weight Steel Structures

2014 ◽  
Vol 501-504 ◽  
pp. 777-781 ◽  
Author(s):  
Fang Hui Li ◽  
Fan Meng
Keyword(s):  
Construction Industry ◽  
Rapid Development ◽  
Steel Structure ◽  
Steel Structures ◽  
Light Weight ◽  
Structural System ◽  
Snow Load ◽  
The Impact ◽  
Research Situation ◽  
Modern Building

With the rapid development of economic and construction industry, light-weight steel structural system is widely used in the modern building construction. While, the light-weight steel structures are more sensitive under the effect of snow load than the other structure systems according to the data from the large amount of accidents of steel structure failures, which indicated the necessary and urged us to focus on the impact of snow on the light-weight steel structures. This paper introduces the current research situation and analyzes the method of snow load determination on gable frames in the load code of different countries, and provides some suggestions on the snow load design of light-weight steel structures finally.

Light Steel Structure Residence Social Benefit Analysis

2013 ◽  
Vol 671-674 ◽  
pp. 496-499 ◽  
Author(s):  
Ming Yang Wang ◽  
Yun Peng Chu ◽  
Yong Yao ◽  
Yu Ping Zhu
Keyword(s):  
Construction Industry ◽  
System Development ◽  
Social Economy ◽  
Steel Structure ◽  
Social Benefit ◽  
Living Environment ◽  
Environmental Benefits ◽  
The Social ◽  
The One ◽  
The Impact

China is a developing country, and also a quake-prone country. On the one hand is the Special national conditions that per capita energy shortage and frequent earthquakes, on the other hand is the social economy development and people's living environment requirements continue to increase, both of them raised new requirement of China’s residence system development. Light steel structure residence is energy conservation , environmental protection, safety and seismic, these unique advantages just to meet the current development of residential industry in China, so it has a good development prospect. This article start from the realistic background, around the application and development of our country’s light steel structure residence presently, mainly introduced the characteristics of light steel structure residence, the impact of construction industry, and the social benefits, environmental benefits, housing industrialization effective and comprehensive benefits it can produce.

Performance Based Optimized Design of Steel Structure

2014 ◽  
Vol 919-921 ◽  
pp. 199-202
Author(s):  
Lan Lan Zhang ◽  
Xiao Guang Song ◽  
Jing Juan Zhang
Keyword(s):  
Optimization Design ◽  
Design Principle ◽  
Steel Structure ◽  
Steel Structures ◽  
Construction Cost ◽  
Optimized Design ◽  
Structural System ◽  
Sizing Optimization ◽  
The Past ◽  
Whole Process

During the past two centuries, steel structure has become one of the most popular structural system. How to balance the construction cost, structural properties and other factors is an important aspect needed to be addressed. This paper describes the whole process of performance based optimized design of steel structure. First, the methods on the shape and sizing optimization, cost and others are introduced. Then, the multi-object optimization of steel structure is presented, in which the main aspects of the optimizations are studied. Finally, the design principle and the analytical steps for the multi-object optimization of steel structures are discussed. This paper can be references for the optimization design of steel structures.

Applied Research of BIM Technology on Prestressed Steel Structures in Xuzhou Stadium

2013 ◽  
Vol 444-445 ◽  
pp. 971-975
Author(s):  
Zhan Sheng Liu ◽  
Xiao Feng Wu ◽  
Rui Long Xu
Keyword(s):  
Construction Industry ◽  
Three Dimensional ◽  
Steel Structure ◽  
Steel Structures ◽  
Space Structure ◽  
Construction Process ◽  
The Family ◽  
The Common ◽  
Three Dimensional Models ◽  
Prestressed Steel Structure

Prestressed steel structure is the common form of space structure. BIM technology is used to every field of the construction industry. In order to apply BIM technology to the design and construction of prestressed steel structures, Xuzhou stadium prestressed structure was took as an example with BIM technology. Firstly, development standards of the family are created. Secondly, three-dimensional positioning technology and then establishing three-dimensional models of BIM are designed. Finally, the construction process of Xuzhou stadium is dynamically simulated.

scholarly journals Optimal Topologies for Steel Frames with Ordinary Chevron and X-Braces: The Effect on Total Structural Cost

2016 ◽  
Vol 10 (1) ◽  
pp. 677-684
Author(s):  
Mehdi Babaei ◽  
Jalal Dadash Amiri ◽  
Foad Omidi ◽  
Arman Memarian
Keyword(s):  
Steel Structures ◽  
Soil Conditions ◽  
Span Length ◽  
System Construction ◽  
Structural System ◽  
Analysis And Design ◽  
Effective Factor ◽  
Building Models ◽  
System Selection ◽  
The Impact

Today, steel structures with simple frames and concentric steel bracings (both crossed and chevron type) are extensively used in different countries, as well as in Iran. Apart from the seismic performance of each structural system, construction cost plays a significant role in system selection by designers. In an attempt to optimize structural costs, this study aims at examining the number of floors, span length, soil conditions, and brace type. In this study the impact of these factors on structural costs are evaluated. Since parking areas are the most important architectural requirement, therefore specified span widths accommodating two, three, and four vehicles are selected for the models. To this end, regular building models with different span (5.6, 7.5, and 11.2m) are selected according to such architectural considerations. Following structural analysis and design, total structural costs are estimated according to the latest national cost list issued by the Management and Planning Organization of Iran (published in 2014). The results are obtained and reported for different models through graphs and tables. The outcomes are evaluated and compared. Finally, the optimal topologies in terms of structure weight and total cost are determined, along with introducing the most effective factor among span length, story number, brace type, and soil type.

scholarly journals Concept of Environmental Sustainability Awareness Strategies in Pre-Construction Stage

2015 ◽  
Vol 3 (1) ◽  
pp. 103-116
Author(s):  
Mohammad Affendy Omardin ◽  
Nazirah Zainul Abidin ◽  
Wan Dagang Wan Ali
Keyword(s):  
Construction Industry ◽  
Environmental Sustainability ◽  
Environmental Concern ◽  
Rapid Development ◽  
Construction Stage ◽  
Sustainability Concept ◽  
Sustainability Practices ◽  
High Level ◽  
Managerial Level ◽  
The Impact

This paper presents an overview of the environmental sustainability concept through construction industry. The aim is to create a environmental sustainability through pre-construction stage. This could be achieved where as it is important to look into minimizing the impact on the environment. However, the enthusiasm in pursuing rapid development often causes environmental sustainability aspect being ignored. This research was conducted to study the level of environmental sustainability concern and practices in through pre- construction stage in construction industry. A selected of construction working managerial level were selected as respondents. Data were collected through a self-administered questionnaire. More than 70% respondents being interview and have high level of environmental concern but moderate level of environmental sustainability practices. Most of the respondents concern about environmental issues. The study also have positive perceptions on environmental sustainability. The findings showed that there is a positive and pro-active between the level of environmental sustainability concern and practices in construction management. This indicates that the higher the level of environmental concern, the higher the level of practices in environmental sustainability among project practitioners. The implication of the study showed that coordinate effort should be taken by construction practices during pre- construction stage to enhance environmental sustainability practices more effective through construction project.

Probabilistic Seismic Loss Analysis for the Design of Steel Structures: Optimizing for Multiple-Objective Functions

2016 ◽  
Vol 32 (3) ◽  
pp. 1587-1605 ◽  
Author(s):  
Sanaz Saadat ◽  
Charles V. Camp ◽  
Shahram Pezeshk
Keyword(s):  
United States ◽  
Structural Response ◽  
Time History ◽  
Steel Structure ◽  
Steel Structures ◽  
Earthquake Hazard ◽  
Economic Losses ◽  
Structural System ◽  
Nonstructural Components ◽  
Central United States

An optimized seismic performance-based design (PBD) methodology considering structural and nonstructural system performance and seismic losses is considered to optimize the design of a steel structure. Optimization objectives are to minimize the initial construction cost associated with the weight of the structural system and the expected annual loss (EAL), considering direct economic losses. A non-dominated sorting genetic algorithm method is implemented for the multi-objective optimization. Achieving the desired confidence levels in meeting performance objectives of interest are set as constraints of the optimization problem. Inelastic time history analysis is used to evaluate structural response under different levels of earthquake hazard to obtain engineering demand parameters. Hazus fragility functions are employed for obtaining the damage probabilities for the structural system and nonstructural components. The optimized designs and losses are compared for the structure located in two geographic locations: one in the central United States and another in the western United States.

Wind Load Analysis and the Structure Optimization Design of the Steel Structures with ANSYS

2010 ◽  
Vol 37-38 ◽  
pp. 1643-1646
Author(s):  
Zhao Xin Meng ◽  
Jian Xin Zhao ◽  
Shu Yang Wang ◽  
Nan Zhou
Keyword(s):  
Optimization Design ◽  
Rapid Development ◽  
Three Dimensional ◽  
Steel Structure ◽  
Steel Structures ◽  
Clean Energy ◽  
Wind Load ◽  
Three Dimensional Model ◽  
Design Standards ◽  
Bio Oil

In recent years, the bio-oil, as a new kind of clean energy, has been paid with more attentions and has been in rapid development. Meanwhile, the design and research of the bio-oil equipment also has made a great progress. This paper presented the research of the main unit installed steel structure which was with the 3000t yearly capacity. It analyzed and researched the structure and load characteristics of the bio-oil main unit installed steel structure. According to the related research theory and design standards, by using software ANSYS establish the three-dimensional model of the main unit installed steel structure. The paper also analyzed and calculated the wind load. The model structure has been optimized on the foundation of the analyzing preliminary model foundation. The stability of the equipment has been enhanced.

scholarly journals A Comprehensive Analysis of Light Weight Steel Structure and Wind Load

2021 ◽  
pp. 396-403
Author(s):  
Nitin Khare ◽  
Dr. Rajeev Chandak
Keyword(s):  
Structural Damage ◽  
Steel Structure ◽  
Steel Structures ◽  
Light Weight ◽  
Structure Damage ◽  
Cold Formed Steel ◽  
Strong Winds ◽  
And Performance ◽  
Hot Rolled ◽  
Extreme Winds

Review to hot-rolled steel structures, cold-formed steel structures are susceptible to extreme winds because of the light weight of the building and its components. Many modern cold-formed steel structures have sustained significant structural damage ranging from loss of cladding to complete collapse in recent cyclones. This article first provides Review some real damage cases for light steel structures induced by the high winds. After that, the paper reviews research on the damage analysis and evaluation of light steel structures caused by strong winds, which include connection failure, fatigue failure, purlin buckling, and primary frame component instability problems. Moreover, this review will mention some applications of structure damage assessment methods in this area, such as vulnerability analysis and performance-based theory, etc.

Measures for Controlling the Steel Support Welding Quality of Building

2013 ◽  
Vol 340 ◽  
pp. 55-58
Author(s):  
Sheng Bin Li
Keyword(s):  
Construction Industry ◽  
Rapid Development ◽  
Steel Structure ◽  
Welding Quality ◽  
Traditional Architecture ◽  
Follow Up Studies ◽  
Application Characteristics

Along with the rapid development of the construction industry, the buildings in China will certainly change from the traditional architecture buildings to the new architecture buildings, so as to fulfill the demands of people on living or production. In order to ensure the lasting play of building functions, it is necessary for the construction units to comprehensively control the welding quality of steel supports. In this paper, the application characteristics of steel structure buildings is first analyzed, and accordingly the measures for controlling the steel support welding quality of buildings and the application of the steel support welding reinforcement technology are proposed. It is hoped that this paper can give a help to the follow-up studies.

The Development of Beam-Arch Combination System Bridge Based on Mechanics and Aesthetic

2011 ◽  
Vol 243-249 ◽  
pp. 1664-1668
Author(s):  
Wen Gang Ma ◽  
Qiao Huang ◽  
Ming Yang ◽  
Yuan Ren
Keyword(s):  
Rapid Development ◽  
Steel Structure ◽  
Steel Structures ◽  
Longitudinal Direction ◽  
Bridge Engineering ◽  
New Combination ◽  
Aesthetic Design ◽  
New Development ◽  
Combination System ◽  
The Aesthetic

The mechanical characteristics and common forms of beam-arch combination system bridge and its new development are introduced. With the rapid development of economy, more and more steel structures are applied to bridge engineering. The usage of steel structure makes the pursuit of aesthetic possible besides the requirements of safety, economy and practicality. Furthermore, the aesthetic design is playing an important role in bridge design, especially in the design of an urban bridge. Aesthetic of a bridge is part of the aesthetic of environment, but which far surpasses the limited rang of environment where it is constructed. The beam-arch combination system bridge has achieved considerable development because of the requirement of aesthetic, which makes it widely used in highway bridge and urban bridge. Especially in urban bridge engineering, a new combination of beam-arch, beam and arch combining in transverse direction of bridge, has been invented and more and more used besides the conventional combination form of beam and arch combining in longitudinal direction of bridge, which is more beautiful but also more complicated for design and construction.

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