Vol 1 Issue 1 October 2013-March 2014

Abstract: India is blessed with good rainfall but however large of it lost through runoff and it can be impounded on the surface at suitable sites for surface storage.  In recent decades groundwater is also threatened by over exploitation, contamination etc. The exploitation of groundwater resources more than its annual replenishment has caused continuous decline of water level, declined well yields, dry of shallow wells deterioration of groundwater quality and increase in cost of energy require to lift water from greater depth this scenario is seen in many pockets of over exploited groundwater regions in Andhra Pradesh.  Chittoor district has no exception to it. In order to overcome the situation and increase the groundwater levels, the present study has been carried out to identify Water Harvesting Structures (WHS) in parts of Chittoor district, Andhra Pradesh.  This study includes collection of rainfall data, cropping particulars, irrigation particulars and identification of existing water harvesting structures (WHS) and proposal of new WHS etc. to recharge and raise the groundwater levels in Karvetinagaram mandal. Twenty four harvesting structures (WHS) have been proposed with an estimated cost with 56.lakhs. The estimated storage capacity from both existing and proposed WHS is 174.52 ha. m. It is found that percolation tanks (PT) have more storage with 122.4 ha.m followed by check walls with 19.0 ha.m, check dams with 16.2 ha, mini-percolation tanks (MPT) with 11.8 ha.m, and staggered trenches with 5.04 ha.m.

Keywords: Rainfall, Groundwater recharge, water harvesting structures, groundwater levels, Chittoor district.

Title: Groundwater Recharge through Rainwater Harvesting Structures in Parts of Chittoor District, Andhra Pradesh

Author: K.LOKESH and S.VENKATESWARA RAO

International Journal Of Civil And Structural Engineering Research (IJCSER)

Research Publish Journals

Abstract: In a framed structure building, frame which is the heart of building. This frame is design by structural engineer taking in to consideration of factors and various codes which necessary. Different techniques used to assess of frames of old structure. Visual inspection non destructive test are used to access frame of structure is made.

Keywords: Framed Structure, Load bearing Structure, Structural Audit, NDT Test.

Title: Structural Audit

Author: B.H Chafekar, O.S Kadam_, K.B Kale, S.R Mohite, P.A Shinde, V.P Koyle

International Journal Of Civil And Structural Engineering Research (IJCSER)

Research Publish Journals

Abstract: La Sarcelle is part of the Eastmain-1-A/La Sarcelle/Rupert project and it is the first bulb units power plant of Hydro-Québec commissioning in 2013. The power plant is made of 3 large bulb units of 50 MW with a large runner diameter of 7 meters. The owner and the lead consultant had to deal with a new kind of plant introducing strong technical challenges. This implies for the consultant a large R&D component to complete the work, not only to control the bulb plant knowledge, but also to apply this knowledge to a Nordic climate. This paper presents an overview of the structural analysis process: the team work, the finite element models involved for global and local analysis, the loads applied to the critical concrete parts and the tools available in post-processing to understand the structural behaviour of complex structures.

Keywords: Bulb power plant, Finite element models, Graphical post-processing

Title: NUMERICAL ANALYSIS OF THE LA SARCELLE POWER PLANT: A CASE STUDY

Author: Normand Thibeault (Senior Engineer, AECOM, Montreal, Canada) and

Ricardo Pena-Rodriguez (Senior Engineer, Hydro-Québec, Montreal, Canada)

International Journal Of Civil And Structural Engineering Research (IJCSER)

Research Publish Journals

Abstract: In this paper, two types of steel frames, steel frame without side sway permission and another with side sway permission are created in Abaqus with 10 multiple slenderness ratio of the columns by changing the length every time starting from 1 M and ending with 10 M length of the columns, Twenty models of steel frames with single story and single bay were created, the models are with the same 2D dimensions  and material properties, the cross section of the steel is (0.5*0.5) M ,and  the supports are fixed, two equal forces P= 1000 N are exerted on the frames in the position mentioned in fig 6, a beam section was defined for the frame integrated before analysis  with Young modulus of elasticity E=1*10⁷  N/M^{2 ,}  and  shear modulus G = 3.8*106 N/M2 and poisons ratio ν = 0.3. A linear perturbation step is created for buckling and 10 eigenvalues are requested for analysis, a standard quadratic beam element type is generated with global seeding of 0.6, and 20 Jobs are created for every situation and conclusions have been obtained, the critical buckling loads of the frames fall in the ranges between the Euler loads forms which has been proved for each type of frames and this scientific approach was verified in this research, in addition to that the relation between the length of the column and the eigenvalues that represent the critical loads of buckling verified, and the  simulations of the mode shapes of buckling of the steel frames were identified adopting finite element analysis which shows the amount of loads necessary to reach each mode shape of buckling for each type of steel frames mentioned before.

Keywords: Euler column, stiffness matrix, critical buckling load, eigen values and eigenvectors

Title: Finite Element Analysis of the Buckling Critical Loads in Un-Braced Steel Frames with Multiple Slenderness Ratio Configurations

Author: Nazim Abdul Nariman, Mohammed A. Msekh