A method for replacing lower flange splice plate of a steel I-girder connection using BPL

2021 ◽  
Author(s):  
Shun Matsui ◽  
Takashi Yamaguchi ◽  
Kensuke Toda ◽  
Kenji Araki ◽  
Motoshi Yamauchi
Keyword(s):  
Steel Plate ◽  
Fem Analysis ◽  
Geometrical Configuration ◽  
Analytical Results ◽  
Bridge Joints ◽  
Increasing Demand ◽  
Girder Bridge ◽  
The Cost ◽  
Good Workability ◽  
The Web

<p>In recent years, corrosion damages of the steel I-girder bridge joints have been reported. With the increasing demand for the replacement of splice plates of the damaged joints, good workability without using temporary supports is required when considering the cost and time necessary to execute such works. In the present study, FEM analysis has been conducted in order to propose a new replacing method for the lower flange splice plates in steel I-girder, which uses a bypass device of steel plate named BPL that is attached to the web panel. From the analytical results, it has been confirmed that using the BPL and replacing the lower flange splice plates, the stress at the lower flange splice plates is transferred to the BPL and redistributed to the new lower flange splice plates after the removal of BPL. It has also been clarified the geometrical configuration of the BPL that can reduce the stress at the web effectively during replacement of the lower flange splice plates.</p>

Bridge Girders with Corrugated Webs

2000 ◽  
Vol 1696 (1) ◽  
pp. 162-170 ◽  
Author(s):  
Mohamed Elgaaly ◽  
Anand Seshadri ◽  
Roberto Rodriquez ◽  
Sherif Ibrahim
Keyword(s):  
Moment Capacity ◽  
Design Recommendations ◽  
Plate Girders ◽  
Analytical Results ◽  
Corrugated Webs ◽  
Shear Buckling ◽  
The Moment ◽  
The Cost ◽  
Web Plates ◽  
The Web

In plate girders, the use of corrugated webs permits the use of thin web plates without stiffeners, which reduces the cost of beam fabrication and improves fatigue life. Experimental and analytical studies on the behavior of girders with corrugated webs were conducted that have led to design recommendations. For girders with corrugated webs subjected to shear, it was noted from the experimental as well as the analytical results that failure of the web occurs because of local or global shear buckling, which depends on the corrugation configuration. For girders with corrugated webs subjected to uniform bending, the failure was due to yielding and vertical buckling of the compression flange into the web. The test and analytical results indicate that the web offered negligible contribution to the moment-carrying capacity of the beam, and the ultimate moment capacity may be calculated on the basis of the flange yielding, ignoring any contribution from the web. The behavior of girders with corrugated webs under in-plane compressive edge loads applied directly on the top flange was investigated, and design recommendations are made. Tests to examine the behavior of girders with corrugated webs under repeated loads are few. The results from the available tests are reported and compared with the results from test on conventionally stiffened girders with flat webs.

Classification of the factors forming the cost of the web-site

2017 ◽  
Vol 31 (2) ◽  
pp. 82-89
Author(s):  
E. S. Epifanov
Keyword(s):  
Web Site ◽  
Internet Site ◽  
Advantages And Disadvantages ◽  
Major Factors ◽  
The Cost ◽  
The Web

This article presents a classification of major factors that shape the cost of Internet site. Also discusses the limitations in determining the objectives of the web site; advantages and disadvantages of different factors.

Challenges of Integrating Information and Communication Technology in Teaching among National Teachers' Colleges in Uganda

2021 ◽  
Vol 2 (Issue 3) ◽  
Author(s):  
Charles Nyakito ◽  
Catherine Amimo ◽  
Vencie B. Allida
Keyword(s):  
Sampling Strategy ◽  
Teachers Colleges ◽  
Internet Connectivity ◽  
Teachers College ◽  
Attitudinal Barriers ◽  
Information And Communication ◽  
Increasing Demand ◽  
High Level ◽  
Teaching Programs ◽  
The Cost

In this 21st century, educational institutions the world over are faced with increasing demand from society to transform from analogue practices to digital systems using technology. This study investigated the challenges experienced by teacher education college lecturers in their quest to integrate ICT in teacher training practices. The study was qualitative, using focus group discussions, interview and observation with 10 college lecturers from each of the 4 colleges and 4 Principals, one from each college. Snowball purposive sampling strategy was used to draw the participants. The findings revealed a host of challenges, despite a high level of appreciation among college lecturers on the importance of ICT integration into classroom instructional practices. Several debilitating factors evolved including, lack of experience and skills in using ICT, lack of ICT curriculum for the teachers' colleges, lack of clear government policy on the teaching of ICT in the teachers' college curriculum, inadequate ICT resources, obsolete ICT hardware and soft wares, intensive teaching programs due to examination pressures, overcrowded classrooms, lack of time, heavy workload, slow internet connectivity, intermittent electricity supply and, attitudinal barriers from the relatively older lecturers with technophobia. The researchers therefore, recommended government intervention with a clear policy on ICT inclusion in the curriculum, equipping the colleges with adequate and up-to-date equipment, regular training opportunities for the lecturers, provision of alternative and affordable source of power, recruiting more human resource in the colleges to reduce the workload for the lecturers and government subsidizing on the cost of internet connectivity.

Morpheus Web Testing: A Tool for Generating Test Cases for Widget Based Web Applications

2021 ◽  
Author(s):  
Romulo de Almeida Neves ◽  
Willian Massami Watanabe ◽  
Rafael Oliveira
Keyword(s):  
User Interfaces ◽  
Web Application ◽  
Web Applications ◽  
Test Cases ◽  
Code Coverage ◽  
Web Testing ◽  
The Cost ◽  
Software Lifecycle ◽  
The Web

Context: Widgets are reusable User Interfaces (UIs) components frequently delivered in Web applications.In the web application, widgets implement different interaction scenarios, such as buttons, menus, and text input.Problem: Tests are performed manually, so the cost associated with preparing and executing test cases is high.Objective: Automate the process of generating functional test cases for web applications, using intermediate artifacts of the web development process that structure widgets in the web application. The goal of this process is to ensure the quality of the software, reduce overall software lifecycle time and the costs associated with tests.Method:We elaborated a test generation strategy and implemented this strategy in a tool, Morpheus Web Testing. Morpheus Web Testing extracts widget information from Java Server Faces artifacts to generate test cases for JSF web applications. We conducted a case study for comparing Morpheus Web Testing with a state of the art tool (CrawlJax).Results: The results indicate evidence that the approach Morpheus Web Testing managed to reach greater code coverage compared to a CrawlJax.Conclusion: The achieved coverage values represent evidence that the results obtained from the proposed approach contribute to the process of automated test software engineering in the industry.

Nep-Endotrainer: A cost-effective home-made laparoscopic simulation tool

2021 ◽  
Vol 23 (2) ◽  
pp. 52-55
Author(s):  
Uttam Laudari ◽  
Deepak Mahat ◽  
Rosi Pradhan ◽  
Suyog Bhandari ◽  
Deepak Raj Singh
Keyword(s):  
Laparoscopic Surgery ◽  
Mobile Phones ◽  
Cost Effective ◽  
Simulation Tool ◽  
Drilling Machine ◽  
Web Camera ◽  
The Cost ◽  
Training Modules ◽  
Established Treatment ◽  
The Web

Introduction: Laparoscopic surgery is an established treatment modality worldwide. Opportunities to acquire this skill using expensive simulation at workplace are not always feasible due to cost, time and accessibility constraints. Nep-Endotrainer is a cost effective homemade laparoscopic simulation tool built in Nepal. Methods: Nep-Endotrainer was built using plastic manikins easily available in market. Nine apertures were created with a drilling machine, four on each side of umbilicus and one at the epigastric region. These apertures were covered by thick piece of rubber of vehicle tire with apertures in them. Logitech® C270 HD webcam was fixed interiorly with metal screws. The base of the manikin was fixed to a wooden board with hinge joint. Five different interchangeable training modules were assembled in 10×10 cm2 size wooden boards. The LED light was fixed interiorly near the web camera. The camera USB can be easily connected with laptops, tablets and mobile phones. We used discarded hand instruments from laparoscopic centers to reduce the cost of the endotrainer. Conclusion: Nep-Endotrainer is accessible to any personal budget and can be readily constructed. It allows more frequent practice at home, outside the venue and hours of surgical departments.

E-Impresa

2010 ◽  
pp. 470-485
Author(s):  
Habib Sedehi
Keyword(s):  
Sustainable Growth ◽  
Strategic Decisions ◽  
Whole Process ◽  
On Line ◽  
Business Game ◽  
Break Even Point ◽  
The Cost ◽  
The Web

Electronic commerce, marketing on line, and network economy are today’s keywords of (possible) success. But how many managers effectively know about the cost and benefits of starting to sell their products and services through the Web? How much they should invest at the beginning and how long does it takes to have a break-even point of their investment? In order to give support for better understanding the process of the Web marketing and to have more elements to decide to “dive” or not in this virtual world a System Dynamics (SD) model (Forrester J.W. 1961, 1971, 1980), has been developed. The model has the aim to support strategic decisions for SME involvement in e-Commerce, pointed out to guarantee sustainable growth and medium-long term success. The project e-Impresa1 analyses the whole process of the investment in building and maintaining a web site, taking into account the main variables of E-commerce. Through a case study, a SD business game model has been developed. The model gives the opportunity to users to evaluate different what-if analysis through the simulation period time (2 years) at each model step time (4 weeks). This chapter will explain the overall architecture of the model and will present some results of use of the model in different conditions.

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