scholarly journals STEEL DOME PROJECT DESIGN BOGOR CONVENTION CENTER OPTIMIZATION FOR BUDGET AND AESTHETIC ARCHITECTURE

Neutron ◽  
2020 ◽  
Vol 20 (01) ◽  
pp. 41-47
Author(s):  
Hamonangan Girsang ◽  
Cecep Indra Lesmana
Keyword(s):  
Structural Model ◽  
Economic Value ◽  
Steel Structures ◽  
Pipe Material ◽  
Analysis And Design ◽  
Calculation Results ◽  
Convention Center ◽  
Dome Structure ◽  
Internal Forces ◽  
The Aesthetic

A building needs to be considered various aspects to meet the values - both economic value, cost, durability, impact on the environment to aesthetics or beauty. This research was conducted to make a comparison of the Bogor Convention Center project which was built using the Dome structure with the WF Steel Profile which will be replaced by using steel pipe material. The software used in designing steel is SAP2000 Analysis. SAP2000 is a 3D modeling application that is able to design steel structures that produce analysis and calculation results include static analysis, finite element dynamics analysis, as well as images, reports or other outputs from one structural model. As for the depiction using Autocad where Autocad functions to detail the connections that are in the dome frame of the study. Analysis and Design of a spherical dome structure with building functions as a convention center. The structure of the shell is used as the roof of the building so that the aesthetic elements and values of the architecture of the shell structure can be seen its beauty from the inside of the building. The analysis conducted is an analysis of the internal forces and design of reinforcement in the structure.

scholarly journals Comparative analysis and design of tower using diagrid, conventional moment frame and braced frame system of steel structures

2019 ◽  
Vol 276 ◽  
pp. 01026
Author(s):  
Made Sukrawa ◽  
Gede Pringgana ◽  
Putu Diva Tryatra Sanjaya
Keyword(s):  
Tall Buildings ◽  
Steel Structures ◽  
Moment Frame ◽  
Braced Frame ◽  
Analysis And Design ◽  
Finite Element Software ◽  
Frame System ◽  
The Aesthetic ◽  
Diagrid Structure ◽  
Seismic Behaviors

The diagrid structure system has become an encouraging alternative for the construction of tall buildings partly because of the aesthetic reason. Structurally, the system also interesting because its diagonal intersecting members are capable of resisting vertical and lateral forces efficiently. This research compared the design of steel tower building using diagrid (DIA) system and the more commonly used systems, moment frame (MF) and braced frame (BF). Numerical modelling using finite element software ETABS were conducted to design a 10-story building of 15x15m with total height of 50 meters. The seismic behaviors of all models were compared under the same loading conditions. From the analysis results the DIA model showed superior seismic behavior followed by BF and MF. The DIA model was not only stiffer than the others, but also required smaller volume of steel.

Effect of pipe expansion on the redistribution of residual stresses after molding

2020 ◽  
Vol 10 (2) ◽  
pp. 122-126
Author(s):  
Nikolay A. Makhutov ◽  
◽  
Dmitry A. Neganov ◽  
Eugeny P. Studenov ◽  
◽  
...  
Keyword(s):  
Residual Stresses ◽  
Strain Distribution ◽  
Strain State ◽  
Stress And Strain ◽  
Cylindrical Shape ◽  
Pipe Material ◽  
Pipe Expansion ◽  
Calculation Results ◽  
Residual Deformations ◽  
Stress And Strain Distribution

In the factory, pipes for trunk oil and oil product pipelines are obtained by molding and welding. To ensure a cylindrical shape and reduce technological residual stresses, expansion technology is used. Pipe expansion causes a significant change in the values of residual deformations and stresses. The article presents both the calculation results and graphs regarding stress and strain distribution during bending of the stock and their redistribution after expansion. Based on the calculation results, the final total values of residual stresses and residual deformations caused by bending and expansion were stated to be important components of the stress-strain state observed in pipelines being operated under cyclic loading, as well as those used in assessing how degradation affects the ductility of the pipe material. These factors were concluded as being reasonably taken into account when performing verification calculations regarding long-running pipelines if, based on their diagnostics and analysis, their state does not meet modern strength requirements.

Human-carnivore coexistence: factors influencing stakeholder attitudes towards large carnivores and conservation in Zimbabwe

2020 ◽  
pp. 1-10
Author(s):  
Esther van der Meer ◽  
Hans Dullemont
Keyword(s):  
Economic Value ◽  
Negative Attitudes ◽  
Carnivore Conservation ◽  
Subsistence Farmers ◽  
Carnivore Species ◽  
Positive Attitudes ◽  
Need To Evaluate ◽  
The Aesthetic ◽  
Main Component ◽  
Stakeholder Attitudes

Summary Promoting human-carnivore coexistence is a main component of carnivore conservation. Coexistence programmes are usually informed by attitudinal studies that evaluate intended behaviour towards carnivores. This questionnaire survey assesses attitudes of governmental and non-governmental conservation stakeholders in Zimbabwe towards living with carnivores, large carnivore species and the conservation of wildlife, and determines whether being part of coexistence programmes (CAMPFIRE, TFCAs) positively affects attitudes. Stakeholder attitudes were most positive when employment was directly related to wildlife and stakeholders had knowledge about and exposure to carnivores. Stakeholders who depend on livestock and/or had little knowledge about and less exposure to carnivores were most negative, this included governmental stakeholders responsible for natural resource management. Positive attitudes were largely based on the aesthetic and economic value of carnivores, while negative attitudes were based on the fear of livestock loss and perceived danger to humans. Subsistence farmers were the most negative stakeholders, as such, the focus on this group to promote coexistence seems justified. However, although some stakeholders were more positive in CAMPFIRE areas or TFCAs, CAMPFIRE and TFCAs failed to improve attitudes of subsistence farmers, which highlights a need to evaluate and adapt these programmes.

Manufacturing Plant Management Information System Analysis and Design Based on UML

2010 ◽  
Vol 455 ◽  
pp. 237-241
Author(s):  
X.Y. Yang ◽  
H.B. Zheng ◽  
Z.W. Zhang
Keyword(s):  
Asset Management ◽  
System Analysis ◽  
Structural Model ◽  
System Development ◽  
Unified Modeling Language ◽  
Object Oriented ◽  
Plant Management ◽  
Management Information ◽  
Static Structure ◽  
Analysis And Design

With the development of manufacturing automation and intelligent increasing speed, the construction in plant management information has been important tasks to promote business innovation ability, improve competitiveness and manufacturing execution. In this paper, UML (Unified Modeling Language) and object-oriented modeling technology were applied to model the static structure and dynamic behavior of the plant management information from requirement analysis to system implementation, including functional requirement model, static structural model, asset management time sequence chart, system physical model and so on. The visualized system analysis method and technology better planned the system design and improved the efficiency of the system development. It will play a guiding role in the object-oriented software development.

scholarly journals Hybrid Finite Element Method Development for Offshore Structures’ Calculation with the Implementation of Industry Standards

2019 ◽  
Vol 26 (4) ◽  
pp. 90-100
Author(s):  
Jacek Łubiński ◽  
Henryk Olszewski
Keyword(s):  
Finite Element ◽  
Method Development ◽  
Structural Model ◽  
Model Development ◽  
Steel Structures ◽  
Cost Effective ◽  
Offshore Structures ◽  
Wind Loading ◽  
Hybrid Finite Element Method ◽  
Industry Standards

Abstract In the design process of offshore steel structures, it is typical to employ commercial calculation codes in which simulation and evaluation of results are performed on the basis of the available standards (e.g. API, DNV, Lloyds). The modeling and solution rely on finite element methods and cover the simulation of the structure’s properties along with the influence of the marine environment – sea currents, wave and wind loading, as well as the influence of vibrations, buoyancy and accompanying mass of water. Both commercial and open source mathematical modeling software which is available nowadays allows for cost effective and flexible implementation of advanced models for offshore industrial structures with high level of credibility and safety. The models can be built to suit task-specific requirements and evaluated on the basis of the selected criterial system best suited to the needs of the customer. Examples of methodology for environmental and structural model development are presented, along with simulation results covering a wide scope of data, ranging from stress and deformation to resonant characteristics and issues of technological feasibility.

scholarly journals Switching Intent of Disruptive Green Products: The Roles of Comparative Economic Value and Green Trust

2021 ◽  
Vol 9 ◽  
Author(s):  
Chunpei Lin ◽  
Xiumei Lai ◽  
Chuanpeng Yu
Keyword(s):  
Structural Model ◽  
Economic Value ◽  
Disruptive Innovation ◽  
Extended Model ◽  
Green Product ◽  
Continuous Innovation ◽  
Product Switching ◽  
Green Trust ◽  
The Relationship

This study explores consumers’ motivations to switch to new products in the context of disruptive innovation and investigates the role of comparative economic value and green trust. Switching from an existing product to a disruptive green product not only involves benefits but also requires major sacrifices, which are not encountered in the context of continuous innovation. In this study, the relationships between comparative economic value, green trust, self-accountability, and disruptive green product switching intent are examined. Data were collected from China with self-administered questionnaires regarding the disruptive green product. Results of a structural model reveal positive relationships between comparative economic value, green trust, and disruptive green product switching intent. In addition, green trust mediates the effects of the comparative economic value on the disruptive green product switching intent, and self-accountability moderates the relationship between green trust and disruptive green product switching intent. From a practitioner perspective, the research is important because it illuminates the consumer’s motivations regarding product switching in the hitherto unexplored field of automobiles, for which we have shown that our extended model yields meaningful results.

scholarly journals Effects of Surrounding Earth on Shell During the Construction of Flexible Bridge Structures

2019 ◽  
Vol 41 (2) ◽  
pp. 67-73
Author(s):  
Czesław Machelski
Keyword(s):  
Steel Structure ◽  
Steel Structures ◽  
Static Condition ◽  
Steel Bridge ◽  
Interfacial Interactions ◽  
Soil Medium ◽  
Bridge Structures ◽  
Internal Forces ◽  
Bearing Loads ◽  
Corrugated Plates

AbstractA characteristic feature of soil-steel structures is that, unlike in typical bridges, the backfill and the carriageway pavement with its foundation play a major role in bearing loads. In the soil-steel structure model, one can distinguish two structural subsystems: the shell made of corrugated plates and the backfill with the pavement layers. The interactions between the subsystems are modelled as interfacial interactions, that is, forces normal and tangent to the surface of the shell. This is a static condition of the consistency of mutual interactions between the surrounding earth and the shell, considering that slip can arise at the interface between the subsystems. This paper presents an algorithm for determining the internal forces in the shell on the basis of the unit strains in the corrugated plates, and subsequently, the interfacial interactions. The effects of loads arising during the construction of a soil-steel bridge when, for example, construction machines drive over the structure, are taken into account in the analysis of the internal forces in the shell and in the surrounding earth. During construction, the forces in the shell are usually many times greater than the ones generated by service loads. Thus, the analytical results presented in this paper provide the basis for predicting the behaviour of the soil medium under operational loads.

Analysis by the mixed method of statically indeterminate frames with elements of increased rigidity and numerical verification of the calculation results using the finite element method

2021 ◽  
Vol 14 (2) ◽  
pp. 54-66
Author(s):  
Svetlana Sazonova ◽  
Viktor Asminin ◽  
Alla Zvyaginceva
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Initial Data ◽  
Mixed Method ◽  
Numerical Verification ◽  
Bending Moments ◽  
The Finite Element Method ◽  
Calculation Results ◽  
Internal Forces ◽  
Element Method

The sequence of application of the mixed method for calculating internal forces in statically indeterminate frames with elements of increased rigidity is given. The main system is chosen for the frame with one kinematic and one force unknown. The canonical equations of the mixed method are written, taking into account their meaning. Completed the construction of the final diagram of the bending moments and all the necessary calculations and checks. When calculating integrals, Vereshchagin's rule is applied. The solution of the problem is checked by performing the calculation using the computer program STAB12.EXE; the results of the calculations are numerically verified using the finite element method. An example of the formation of the initial data for the STAB12.EXE program and the subsequent processing of the calculation results, the rules for comparing the numerical results and the results obtained in the calculation of the frame by the mixed method are given.

Sign in / Sign up

Export Citation Format

Share Document