Soil–steel structure design by the Ontario Code: Part 2. Structural considerations

1981 ◽  
Vol 8 (3) ◽  
pp. 331-341 ◽  
Author(s):  
G. Abdel-Sayed ◽  
Baidar Bakht
Keyword(s):  
Steel Structure ◽  
Steel Structures ◽  
Empirical Method ◽  
Structure Design ◽  
Live Load ◽  
Finite Element Program ◽  
Worked Example ◽  
Metallic Shell ◽  
Element Program ◽  
Load Effects

The paper presents provisions of the Ontario Bridge Design Code for the structural design of the metallic shell of soil–steel structures, and also discusses the development background of these provisions. A simplified method of determining live load effects in the metallic shell is presented. The method is based on results of a well-tested plane strain finite element program. An empirical method for determining live load effects, which is based on tests of full-size structures, is also given. A worked example is given to illustrate the usage of the design provisions.

ANALYSIS AND DESIGN OF MULTI-STOREY STEEL STRUCTURES WITH IRRIGATION TO TORQUE ACCORDING TO 2018 EARTHQUAKE REGULATIONS

2021 ◽  
Vol 0 (15) ◽  
pp. 0-0
Author(s):  
Fahım Ahmad NOWBAHARI ◽  
Elif AĞCAKOCA
Keyword(s):  
Steel Structure ◽  
Steel Structures ◽  
Seismic Load ◽  
Finite Element Program ◽  
Analysis And Design ◽  
Earthquake Resistant Structures ◽  
Cross Member ◽  
Element Program ◽  
The Cross ◽  
Design Earthquake

When observing the consequences of earthquakes, it is accepted that earthquakes are one of the most dangerous natural disasters in the world. Therefore, special engineering methods are used to explore and analyze the effects of earthquakes on structures and to design earthquake resistant structures accordingly. In applying these methods, it is important to investigate the irregularities in the carrier system correctly. There are six irregularities in the Turkish Building Earthquake Code (TBDY-2018), one of the most important of which is A1 Torsional Irregularity [TBDY 2018]. In this article, considering TBDY 2018, the dynamic behaviour of structures with different ratios of torsional irregularity in multi-storey steel structures is examined. In a 10-storey steel structure with the same purpose and size, four type models were produced using the central inverted V cross member and changing the cross positions. The Equivalent Seismic Load Method is used in the analysis. Structural analyzes were performed with the "ETABS" finite element program. As a result of these studies; The displacements obtained from the structural analysis of 4 models with different torsional irregularity coefficients due to the cross member placement in various places in 4 buildings with the same dimensions were calculated by the Equivalent Seismic Load method.

Soil–steel structure design by the Ontario Code: Part 1. General and geotechnical considerations

1981 ◽  
Vol 8 (3) ◽  
pp. 317-330 ◽  
Author(s):  
Cameran Mirza ◽  
Baidar Bakht
Keyword(s):  
Soil Structure ◽  
Steel Plate ◽  
Steel Structure ◽  
Steel Structures ◽  
Structure Design ◽  
Soil Structure Interaction ◽  
Design Code ◽  
Metallic Shell ◽  
Engineering Aspect ◽  
Soil Component

The paper presents an overview of the Ontario Highway Bridge Design Code provisions dealing with the design of soil–steel structures, which are composed of shells of corrugated steel plate, embedded in an envelope of engineered soil. In particular, the paper deals with the engineering aspect of the soil component of the structure. The soil–structure interaction is discussed in the context of arching of dead loads and the influence of soil properties on the ability of the metallic shell to sustain loads. Hydraulic, geotechnical, and other aspects of soil–steel structure design, such as durability and construction, are also briefly discussed.

scholarly journals ANALYSIS OF THE STRENGTH OF A REINFORCED CONCRETE COMPRESSIVE COLUMN UNDER THE TEMPERATURE OF FIRE / GAISRO TEMPERATŪROS VEIKIAMŲ GNIUŽDOMŲJŲ GELŽBETONINIŲ KOLONŲ ĮTEMPIŲ SKERSPJŪVYJE PASISKIRSTYMO ANALIZĖ

2012 ◽  
Vol 4 (4) ◽  
pp. 320-325
Author(s):  
Aidas Jokūbaitis ◽  
Arnoldas Šneideris
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Comparative Analysis ◽  
Cross Section ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Finite Element Program ◽  
Metallic Shell ◽  
Element Program ◽  
Characteristic Stress

The article discusses principles calculating resistance of a reinforced concrete column to fire. The paper provides column calculation models, the main characteristics of materials and characteristic stress set points applying finite element program SolidWorks. A comparative analysis of stresses in the cross-section of the reinforced concrete column and the reinforced concrete column strengthened with a metallic shell is made. Santrauka Analizuojami gelžbetoninės kolonos atsparumo ugniai skaičiavimo principai. Pateikiami baigtinių elementų programa SolidWorks sudaryti kolonų skaičiuojamieji modeliai, pagrindinės medžiagų charakteristikos ir būdingi įtempių nustatymo taškai. Atliekama gelžbetoninės ir sustiprintos metaliniu apvalkalu gelžbetoninės kolonos įtempių skerspjūvyje lyginamoji analizė.

Dynamic Analysis of Large Steel Structure Truss System

2011 ◽  
Vol 101-102 ◽  
pp. 387-391
Author(s):  
Chu Qun Wu ◽  
Fan Wang ◽  
Shao Yong Wang
Keyword(s):  
Dynamic Analysis ◽  
Vibration Mode ◽  
Steel Structure ◽  
Vibration Modes ◽  
Finite Element Program ◽  
Large Steel ◽  
Dynamic Computation ◽  
Modes Of Vibration ◽  
Element Program ◽  
Earthquake Vibration

The deformation of the large steel structure truss system, which was subjected to constant loads, variable loads and wind loads, was calculated by using the 3D3S steel structure analysis program. The periods and the vibration mode from the first to the ninth order of the structure were obtained by the earthquake vibration mode period analysis. The dynamic computation of the structure showed that the period difference of the vibration modes is small. The frequencies and the modes of vibration from the first to the ninth order of the same structure mode were calculated by using the ANSYS finite element program. The frequencies and the modes of vibration from the first to the ninth order of the building were obtained by the dynamic analysis of the structure. The dynamic computation of the structure shows that the frequencies difference of the vibration modes is small. The vibration instability is possible for the structure.

scholarly journals Design Analysis of Overhead Crane for Maintenance Workshop

2018 ◽  
Vol 207 ◽  
pp. 02003
Author(s):  
Siva Sitthipong ◽  
Chaiyoot Meengam ◽  
Suppachai Chainarong ◽  
Prawit Towatana
Keyword(s):  
Finite Element ◽  
Steel Structure ◽  
Design Analysis ◽  
Overhead Crane ◽  
Functional Requirements ◽  
Finite Element Program ◽  
Fishing Boat ◽  
Element Program ◽  
Reinforced Steel ◽  
Beam Bridge

This research aimed to study the design of the overhead crane of a small fishing boat maintenance factory according to the building and functional requirements of the project based on the ASME B30.2-2005 Standard. The results of the study showed that the design of the runway with steel structure BS: 5950: 2000 grade s460 provided vertical and horizontal deflection values of 4.96 and 16.62 respectively that did not exceed the allowed deflection. It is strong enough for use in construction when the stresses on the beam bridge were analysed by the finite element program compared with the strength of the reinforced steel providing a safety value of 1.83.

scholarly journals Corrugated Shell Displacements During the Passage of a Vehicle Along a Soil-Steel Structure

2016 ◽  
Vol 38 (4) ◽  
pp. 25-32 ◽  
Author(s):  
Czesław Machelski ◽  
Marcin Mumot
Keyword(s):  
Substantial Reduction ◽  
Steel Structure ◽  
Steel Structures ◽  
Steel Plates ◽  
Live Load ◽  
Building Structure ◽  
Corrugated Shell ◽  
Horizontal Displacements ◽  
Circumferential Segment ◽  
2D Model

Abstract Corrugated steel plates are highly rigid and as the constructions can be immersed in soil, they can be used as soil-steel structures. With an increase of cover depth, the effectiveness of operating loads decreases. A substantial reduction of the impacts of vehicles takes place as a road or rail surface with its substructure is crucial. The scope of load’s impact greatly exceeds the span L of a shell. This article presents the analysis of deformations of the upper part of a shell caused by a live load. One of the assumptions used in calculations performed in Plaxis software was the circle-shaped shell and the circumferential segment of the building structure in the 2D model. The influence lines of the components of vertical and horizontal displacements of points located at the highest place on the shell were used as a basis of analysis. These results are helpful in assessing the results of measurements carried out for the railway structure during the passage of two locomotives along the track. This type of load is characterized by a steady pressure onto wheels with a regular wheel base. The results of measurements confirmed the regularity of displacement changes during the passage of this load.

scholarly journals Kajian Desain Struktur Beton Bertulang Dengan Struktur Baja (Studi Kasus Pada Pembangunan Gedung H Unitomo)

2019 ◽  
Vol 2 (2) ◽  
pp. 79
Author(s):  
Inggrid Loiza Batak ◽  
Safrin Zuraidah ◽  
Budi Hastono
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Concrete Structures ◽  
Steel Structure ◽  
Steel Structures ◽  
Seismic Load ◽  
Reinforced Concrete Structures ◽  
Live Load ◽  
Software Modeling ◽  
Reinforced Concrete Structure

Recently, a structure that is generally applied to the construction of multi-storey buildings is reinforced concrete structure. Structural steel is rarely used nowadays, yet in fact, the steel structures are still able to compete with reinforced concrete structures. Therefore, this study aims to determine the exact profile dimensions and the comparison of material prices between steel structures and reinforced concrete structures for columns and beams in redesigning H Building of Dr. Soetomo University, Surabaya. The WF profile steel will be used in this redesigning project. The structure is modeled using AutoCAD, and then imported into SAP2000 software. Modeling structure consists of columns, primary beams and secondary beams. The loads reviewed from the design are dead load, live load, wind load and seismic load. From the results of design review obtained, the overall strength of structure rearrangement is safe and it is obtained the beam profile dimensions of B1 WF 600x200x12x20, B2 WF 400x300x9x14 profile, B3 WF 400x300x9x14 profile, B4 WF 350x200x8x12 profile, and B5 WF 175x125x 5.5x8 profile, K1 WF 400x400x18x28 column profile, and K2 WF 400x400x21x21 column profile. The use of steel structures as a substitute for reinforced concrete structures for columns and beams in the building is a way more expensive with the percentage of steel structure 149.13% more expensive than reinforced concrete structure.

Mechanical Property Study of Corroded Steel Beams Strengthened with Prestressed CFRP Sheets

2012 ◽  
Vol 594-597 ◽  
pp. 955-958
Author(s):  
Jun Hua Huo ◽  
Bo Pang
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
Steel Corrosion ◽  
Steel Structure ◽  
Calculation Model ◽  
Steel Beams ◽  
Finite Element Program ◽  
Cfrp Sheets ◽  
Element Program ◽  
Prestressed Cfrp Sheets

Steel structure, which has higher bearing capacity, smaller sectional dimension, convenient construction and economical investment, can be abroad used in engineering. However, due to a lot of reasons, the gradual expansion and convergence of the micro-defects lead to the macro deterioration of the mechanical properties of materials. By experimental research, theoretical analysis and computer simulation, the mechanical properties of the corroded steel beams strengthened with (prestressed) CFRP sheets were studied. According to the mechanical characteristics of corrosive steel beams and corrosive composite steel-concrete beams strengthened with prestressed CFRP sheets. By using ABAQUS finite element program, the calculation model of prestressed CFRP sheets strengthened corrosion steel beams and corrosion steel-concrete composite beams is established, and the working mechanism is studied. The calculation results show that: the bearing capacity of strengthened beams increase with the increasing of the initial prestress and CFRP sheets thickness, and decrease with the increase of steel corrosion degrees.

Analysis on Collapse Accidents of Two Steel Structural Buildings

2011 ◽  
Vol 94-96 ◽  
pp. 547-550
Author(s):  
Hong Yuan Tang ◽  
Bin Yang
Keyword(s):  
Steel Structure ◽  
Steel Structures ◽  
Structure Design ◽  
Design Construction ◽  
Design And Construction

Through the detection and appraisal of two collapse accidents of steel structural buildings, the reasons of them are overall analyzed based on the design, construction and material of the steel structures. Combining the characteristics of light steel structure itself, some correlated suggestions are proposed including this kind of structure design and construction.

An analysis of the performance of welded wide flange columns

1991 ◽  
Vol 18 (4) ◽  
pp. 537-555 ◽  
Author(s):  
Diana E. Chernenko ◽  
D. J. Laurie Kennedy
Keyword(s):  
Material Properties ◽  
Residual Strain ◽  
Steel Structures ◽  
Statistical Parameters ◽  
Limit States ◽  
Finite Element Program ◽  
Inelastic Analysis ◽  
Inelastic Behaviour ◽  
Element Program ◽  
Welding Processes

The Canadian Standards Association Standard CAN-CSA-S16.1-M89 “Limit states design of steel structures” assigns welded wide flange (WWF) columns to the column curve for rolled H-shaped sections. This is conservative because of differences in the production of WWF and rolled sections. The WWFs are stipulated to have flame-cut edges. The residual stress pattern, with favourable tensile stresses, results in a delayed loss of stiffness as weak axis inelastic buckling occurs. Thus the weak axis and strong axis buckling curves lie closer together for WWF shapes than they do for rolled H-shapes. Automatic cutting and welding processes result in close tolerances on out-of-straightness. As well, the statistical variations in the geometric properties are favourable. A detailed analysis of data collected from mill records and on-site measurements was made to obtain statistical parameters of relevant geometric and material properties. A finite element program modelling inelastic behaviour, residual strain patterns, out-of-straightness, and material properties was used with the test results of others to establish test-to-predicted ratios of column strengths. Parametric studies provided an assessment of the effect of varying residual strain patterns and column out-of-straightness. This formed the basis for determining the factored compressive resistance of WWF sections for three different slenderness ratios. Key words: columns, inelastic analysis, out-of-straightness, residual stresses, welded wide flange.

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