Non Linear Pushover analysis

Non-Linear Static Push-over Analysis

The static pushover analysis is becoming a popular tool for seismic performance evaluation of existing and new structures. The expectation is that the pushover analysis will provide adequate information on seismic demands imposed by the design ground motion on the structural system and its components. The purpose of the paper is to summarize the basic concepts on which the pushover analysis can be based, assess the accuracy of pushover predictions, identify conditions under which the pushover will provide adequate information and, perhaps more importantly, identify cases in which the pushover predictions will be inadequate or even misleading.

For teh whole paper, go to Non-Linear Static Push-over Analysis

Use of Superplasticiser

Superplasticizer

From Internet

EIA By Delphi Technique

Full Paper                                               

ABSTRACT

The Delphi technique is a method for obtaining forecasts from a panel of independent experts over two or more rounds. Experts are asked to predict quantities. After each round, an administrator provides an anonymous summary of the experts’ forecasts and their reasons for them. When experts’ forecasts have changed little between rounds, the process is stopped and the final round forecasts are combined by averaging. Keywords – Delphi Technique – Panel of Independent Experts. 

Abstract  Improving the performance of the Environmental Impact Assesment (EIA) necessitates an effective institutionalization of governmental environmental management functions. There are examples of successful and unsuccessful SEAs in several parts of the world. Analysis and assessment of these cases can deliver useful insights for institution builders. The objective of this article is the assessment of the institutional effectiveness of the deforestation through the perceptions of the experts using the Delphi Technique. In this regard, a checklist is developed including to measure the institutional effectiveness of the EIA. Results, based on the perceptions of the experts, indicate that the overall effectiveness of the EIA is far less than satisfactory. No consensus has been achieved over the remainder of the parameters. The Paper has proven that the Delphi Technique can be effectively used for that purpose. Utilization of the checklist method is also useful in diagnosing the problematic components of the EIA. Keywords -   Environmental management - Delphi Technique – Checklist  

Flyash as a Cementious Binder

Cementious Material

How can flyash be used as a cementious binder

A pdf file…..from Internet

Partial Flyash Replacement To Sand

Full Paper

ABSTRACT

The utility of flyash as partial replacement in concrete mixes is on rise these days. Flyash is a waste product which is generated in thermal power stations. The quantity of fly ash produced from thermal power plants in
India is approximately 105 million tons each year, and its percentage utilization is less than 13%. Majority of fly ash produced is of Class F type. The use of these materials would reduce the disposal problems now faced by the thermal power stations and industrial plants. During the last few years, some cement companies have started using fly ash in manufacturing cement, known as ‘Pozzolana Portland cement’, but the overall percentage utilization remains very low, and most of the fly ash is dumped at landfills.

Fly ash is generally used as replacement of cement, as an admixture in concrete, and in manufacturing of cement. Whereas concrete containing fly ash as partial replacement of cement poses problems of delayed early strength development, concrete containing fly ash as partial replacement of fine aggregate will have no delayed early strength development, but rather will enhance its strength on long-term basis. In this investigation flyash is used as sand replacement material. The material mix of proportion 1:1.45:2.46:0.5. Each category comprises of various percentages of sand replacement material in increasing order i.e. 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, and 55%. The workability is maintained constant for all mixes. Strength characteristics such as compressive strength flexural strength split tensile strength of concrete mixes are found out for seven and twenty eight days curing period and results are analyzed

Mivan – A Versatile Formwork

Mivan Formwork – Formwork for the New Age

Population explosion has always been a bottleneck to the development for Indian society especially providing housing for low income groups is both gigantic and a complex problem. A host of issues operating in the political, social, legal, financial, and technological domains are needed to be tackled effectively to arrive at a meaningful solution. India desperately needs a lot of rapid dwelling units. Mass housing project is one of the solutions to the overgrowing problem. Speed of construction and quality of construction bolsters this technology.

MIVAN is an upcoming technology which has empowered and motivated the mass construction projects throughout the world. In this paper, I have discussed about the pioneering and yet pragmatic approach of this technology with provisions of speed, quality, financial incentives and construction aspects which is required for a successful completion of mass housing project.

This paper also includes comparison of aluminum formwork technology and conventional system. This comparison also reveals the reduced total cost of a ground-plus-seven building. Other aspects include its box type construction which proves much advantageous as far as earthquake resistant structure is considered.

Good quality construction should not deter the project speed nor should it be uneconomical. A genuine effort has been taken in this paper to cover all the aspects of the MIVAN technology keeping a motto in mind that “Cost is long forgotten, but the Quality is remembered forever”.

For the full article, go to http://www.architectjaved.com/mivan-formwork/