Volume-3 (International Conference on Advances in Engineering & Technology – 2014 (ICAET-2014))
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Paper Type | : | Research Paper |
Title | : | Trends in robotics and automation in construction |
Country | : | India |
Authors | : | Mr. Ballary Vishwanath Gangadara, Prof C. Prasanna Kumar |
Abstract: In India, the construction industry is one of the largest industrial sectors. The construction industry plays to enhance the overall national economy of the India, the complaints of poor construction quality have long been traditional Problems in the India construction industry. For successful quality work, such as lack of skilled workers, poorly installed equipment, poor platns,etc among this in an increase in the real cost of construction & labour. These facts, together with the rapid advancement in automation and robotics technology indicate promising potential for gradual use of automation in construction industry. Studying recent application and projects for using robots and automation in the construction industry. The paper mentions the benefits of automation and robotics technologies application during construction, execution and in brief gathers the factors that form barriers to more substantial use of the technologies in the sites.
Keywords: Construction site, construction work, construction industry, Computer-integrated construction (CIC), fixed construction automation, programmable construction automation.
Wikipedia: Batchingplant, kerb machine, http://www.wirtgenamerica.com/us/products/voegele/roadpavers/index.php
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Paper Type | : | Research Paper |
Title | : | Study on Effect of Soil Inertia Contribution on Dynamic Response of a Single Pile |
Country | : | India |
Authors | : | R. Ravikumar, Dr. M.V. Ramarao |
Abstract: To adequately address pile response under earthquake actions, or to analyze heavy vibratory machine foundations, it is often required to perform a dynamic analysis of the pile for transverse (lateral) vibrations. For a dynamic analysis it is critical to have an adequate representation of the system stiffness (force-deflection relationships), and adequate representation of the system mass involved in the vibration phenomena. The most widely used model to perform the analysis of piles under lateral loads consists in modeling the pile as a series of beam elements, and considering the pile-soil interaction by representing the soil as a group of unconnected, concentrated springs perpendicular to the pile (Discrete Winkler Model). The literature review shows that the soil around the pile deforms in pure shear and that soil deformations are negligible beyond a radial distance of 10times radius of the pile. The main objective of this investigation is to study the importance of the soil mass in the soil-pile system response and to study the soil contribution from zero to 3-times the pile radius to the inertial properties of a soil-pile system under dynamic lateral loads, through lumped masses with the discrete Winkler model and to evaluate the importance of such lumped mass in the system response. Keywords: Dynamic Lateral Response, Soil Inertia, Added Mass Co-efficient, Single Pile
[1] Stavros A. Anagnostopoulos, Pile foundation modeling for inelastic earthquake analyses of large structures, Institute of Engineering Seismology and Earthquake Engineering, Engineering Structures, 1983, Vol. 5, July 215-222 [2] N. Shariatmadari, A. Eslami and M. Karimpour-Fard, "Bearing Capacity of Driven Piles in Sands from SPT–Applied To 60 Case Histories" Iranian Journal of Science & Technology, Transaction B, Engineering, Vol. 32, No. B2, pp 125-140. [3] Murugan M, Natarajan C And Muthukkumaran K, "Behavior of Laterally Loaded Piles in Cohesionless Soils" International Journal of Earth Sciences and Engineering, Volume 04, No 06 SPL, October 2011, pp. 104-106. [4] Nguyen, T. V. and Punrattanasin, P., "The horizontal capacity of improved pile foundation on sand," International Journal of Geotechnical Engineering, 6(2), 223-229 [5] Joseph E. Bowels, Foundation analysis and design (Fifth Edition, The McGraw-Hill Companies, Inc.1997) [6] K. K. Kudmetha1 and A. Dey, "Uncertainty In Predicting Bearing Capacity Of Piles In Sand Using SPT Data" International Symposium on Engineering under Uncertainty: Safety Assessment and Management, January 4 to 6, 2012. [7] Gustavo E. Pacheco-Crosetti, "Dynamic Lateral Response of Single Piles Considering Soil Inertia Contribution "A thesis submitted for the degree of Doctor Of Philosophy In Civil Engineering" University Of Puerto Rico Mayagüez Campus, May 2007.
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Paper Type | : | Research Paper |
Title | : | Grey Water- A Potential Source of Water for Construction |
Country | : | India |
Authors | : | R.T. Peche, Dr. S.S. Jamkar, Dr.P.S.Sadgir |
Abstract: Grey water is potentially less contaminated waste water. Taking scarcity of water into consideration various global agencies are suggesting reuse of grey water for different purposes. Water is one of the major ingredients of concrete and most used material in constructional practices. The grey water available from domestic sources is being used for gardening purpose. As discharge of grey water within the urban area is huge and as good as 60% of per capita domestic water supply, the possibility of its reuse for construction is investigated. Samples of grey water are collected from various domestic sources and their chemical analysis is carried out. Quality of grey water is compared with requirements of water for construction suggested by various codes. It is observed that the requirements like oil fats, colour, detergent, suspended matter, odour, pH were within prescribed limits. Presence of chemicals like chlorides, sulphates, alkalis, and other harmful contaminations were also within permissible limits. Investigation is further carried out to study the influence of grey water on strength of concrete. Concrete cubes of grades M-20, M-25, M-30, M-35 and M-40 were cast using potable and grey water and tested for compressive strength on 7th day and 28th day. The results of compressive strength of concrete with grey water are found almost same or little less than the concrete with potable water.
Keywords: Concrete strength, Grades of Concrete, Grey water, Mixing water, Potable water.
Adam Neville, Water and Concrete: A Love-Hate Relationship, Concrete International, 22(12), 2000, 34-38. SP 23, Handbook on Concrete Mixes, Bureau of Indian Standards, 1982. BS EN 1008, Mixing water for concrete - Specification for sampling, testing and assessing the suitability of water, including water recovered from processes in the concrete industry, as mixing water for concrete, British standard, 2002. IS456, Plain and Reinforced Concrete Code of Practice, Fourth Revision Bureau of Indian Standards, July 2000. Use of Recycled Water in Concrete Production ,Cement Concrete & Aggregates Australia, , August 2007 IS 10500, Draft Indian Standard, Drinking Water – Specification, Second Revision, Bureau of Indian Standards, 2009 Nina Brooks, Imminent Water Crisis ,in India, , August 2007 Ministry of Water Resources, Govt. of India, India Water Week 2012, 8-12 April, 2012, Delhi Ministry of Water Resources, Government of India, Draft National Water Policy (2012) as recommended by National Water Board, 14th Meeting, 7TH JUNE, 2012
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Paper Type | : | Research Paper |
Title | : | Influence of Weathering on the Engineering Properties of Basalt near Indore, Madhya Pradesh |
Country | : | India |
Authors | : | Gunjan Shrivastava |
Abstract: The purpose of this study is to investigate various engineering properties of rocks with different degree of weathering. Weathering is a process involving disintegration and decomposition of rocks in nature. The different kinds of rocks which are formed under different conditions undergo disintegration and decay when exposed to the earth surface. The disintegrated and the altered products stay at the site of formation. Weathering occurs in situ, or "with no movement", and thus should not be confused with erosion, which involves the movement of rocks and minerals by agents such as water, ice, wind, and gravity..
Bieniawski, Z.T. (1976): Rock mass classification in Rock Engineering, Proc. Symp. On Rock Exploration, Cape Town, 1, 97-106. Broch, E. & Franklin, J.A. 1972. Point-load strength test. Int. Journal Rock Mech. Mining Science. 9: 669-697. Caterpillar Performance Handbook (2001). Chigira, M., Sone, K. 1991. Chemical weathering mechanisms and their effects on engineering properties of soft sandstone and conglomerate cemented by zeolite in a mountanious area. Quarterly Intel. Journal Engineering Geology. 30:195-219. Chigira, M. 1990. A mechanism of chemical weathering of mudstone in a mountainous area. Quarterly Intel.Journal Engineering Geology 29 : 119-139. Dearman, W.B.(1974): Weathering classification in the rock characterization of rock for engineering Purposes in British Practice. Bull .Int. Assoc. Engg. Geology, No. 9, 33-42.
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Paper Type | : | Research Paper |
Title | : | Feasibility and Need of use of Waste Marble Powder in Concrete Production |
Country | : | India |
Authors | : | Prof. Veena G. Pathan1, Prof. Md. Gulfam Pathan |
Abstract: Sustainability in Concrete Production can be achieved by innovations in substitutions of materials used. Use of a Marble Waste Powder is not very usual though it has no behavioral problem and there has been little research work done on the waste. Marble waste is a solid waste material generated from the marble processing and can be used either as a filler material in cement or fine aggregates while preparing concrete. It has been used as a replacement of fine aggregates in many literature works but this paper presents the feasibility of the substitution of marble waste for cement to achieve economy and environment saving. The Compressive strength and Split Tensile strength of Concrete can be increased with addition of waste marble powder up to 10% replace by weight of cement. Earlier research also indicate that the effects of blending marble waste on the properties of cement such as consistency, setting times, insoluble residue, and soundness remain within the acceptable ranges of different standards. The production of cheaper and more durable concrete using this waste can solve to some extent the ecological and environmental problems. Therefore this paper provides a scope for more research which is required to design consistent and durable concrete with this waste.
Keywords: Cement, Compressive strength, Sustainability, Waste Marble Powder, partial substitute
[[1] Vaidevi C, Study on marble dust as partial replacement of cement in concrete, Indian journal of engineering, 2013, 4(9), 14-16. [2] Baboo Rai 1 , Khan Naushad H 2 , Abhishek Kr 3 , Tabin Rushad S 4 , Duggal S.K 5, Influence of Marble powder/granules in Concrete mix, International Journal of civil and Structural Engineering, Volume 1, No 4, 2011, ISSN 0976 – 4399. [3] Characterization of Marble Powder for Use in Mortar and Concrete, http://www.4. uwm. edu /cbu/abstracts/05-09.pdf [4] Bouziani Tayeb*1,2, Benmounah Abdelbaki1, Bederina Madani2 and Lamara Mohamed2, Effect of Marble Powder on the Properties of Self-Compacting Sand Concrete, The Open Construction and Building Technology Journal, 2011, 5, 25-29. [5] Abrar Awol, Using Marble Waste Powder in Cement and Concrete Production, ADDIS ABABA UNIVERSITY SCHOOL OF GRADUATE STUDIES [6] Bahar Demirel, The effect of the using waste marble dust as fine sand on the mechanical properties of the concrete, International Journal of the Physical Sciences Vol. 5(9), pp. 1372-1380, 18 August, 2010, ISSN 1992 – 1950. [7] Animesh Mishra, Abhishek Pandey, Prateek Maheshwari, Abhishek Chouhan, S. Suresh*, Shaktinath Das, Green Cement For Sustainable Concrete Using Marble Dust, International Journal of ChemTech Research CODEN( USA): IJCRGG ISSN : 0974-4290, Vol.5, No.2, pp 616-622, April-June 2013 ICGSEE-2013[14th – 16th March 2013] International Conference on Global Scenario in Environment and Energy.
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Paper Type | : | Research Paper |
Title | : | Role of Sustainable Neighbourhood in Urban Built Environment |
Country | : | India |
Authors | : | Ar. Anjali V.Narad,1 Ar.Priya V.Gupta2 |
Abstract: The neighborhood is a basic planning entity in modern residential planning theories. Each Neighbourhood is Designed and Managed to Complement and Enhance Performance of Surrounding Land Uses, Including Adjacent Neighbourhoods and The Region as a Whole. Neighbourhoods are Designed and Operated to Minimise Crime, and to Provide Residents and Visitors with a Safe, Secure Environment. However open spaces as a vital constituent of the neighborhood's physical structure, have an important role to play to enhance the urban built environment.They are the arena of both, neighbors' outdoor interactions consequently building the neighborhood's sense of community. The paper aims to investigate the roles of neighborhoods- in urban built environment to achieve sustainability goals and objectives. However it follows an approach based on both the social and ecological neighborhood's ability to tackle sustainability issues. In this paper we are dealing with to understand the role of neighbourhood in a larger scale to elevate urban built environment from architectural point of view.
Keywords: Physical structure, SustainableNeighbourhood, SustainableEnvironment, Urban Built Environment.
National Neighborhood Coalition (2005).Neighborhoods, Regions and Smart Growth Toolkit: The Smart Growth, Better Neighborhoods Action Guide, National Neighborhood Coalition, Washington DC. Online. www.neighborhoodcoalition.org, Accessed February 2008. Review, E. (2004). Skills for Sustainable Communities: The Office of The Deputy Prime Minister in Sustainable communities: Quality with quantity, RIBA, London, UK, Online. www.architecture.com, Accessed March 2008. Barton, H. (ed.) (2002). Setting the Scene: Conflicting Perception of Neighborhood, In Sustainable Communities: The Potential for Eco- neighborhoods, Earthscan Publications Ltd, London, UK, pp. 4-18. Barton, H. (ed.) (2002).
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Paper Type | : | Research Paper |
Title | : | Pollution Abatement in Industry - A case study |
Country | : | India |
Authors | : | Rajiv H. Pazare1, Mayuri A. Chandak2, Dr. N. S. Raman |
Abstract: An in-plant survey followed by flow measurement was carried out in a typical factory producing about 3200 tonnes rubber latex concentrate and 200 tonnes of skill crepe rubber per year .The characteristics of wastewater from different sections as well as of combined waste water were studied on different occasions. The combined effluent had a BOD varying from 5240 to 6100 mg/l and ammonia nitrogen content varying from 630-750 mg/l. Raising the pH to 11.0 and aerating for 1 hour reduce the ammonia content by 83.1 %. The BOD is reduced to 480 mg/l by treating the combined wastewater after aeration for ammonia removal in an aerobic lagoon with a detention time of 30 days and a BOD loading rate of 0.14 kg/cu.m/day . By aerating the effluent from an aerobic lagoon for 24 hours at a MLSS concentration of 4000 mg/l and BOD loading rate of 0.09 kg/ kg MLSS , the BOD and COD were reduced to 32 mg/l and 280 mg/l respectively. The BOD of the wastewater could be reduced below 40 mg/l by treating anaerobic lagoon effluent in an aerated lagoon with 7 days detention. Based on these studies treatment method is suggested.
Keywords: anaerobic lagoon, BOD ,COD, detention time, effluent.
Chick, W.H.,"Method of pollution control from latex concrete factory effluents". Dunlop Estates Berhad Res.Dept.Commun.Meet.Malaysia, (1973). John, C.K."Non-rubber constituents of heaves latex and their possible utilization". Proc.Waste Reovery by Micro-organism, Kaula Lumpur, 110(1972). Muthuraja, R.N.Rohn, C.K. and Lee, H. "Development on the treatment of effluents from new process SMR factories: Proc. Rubb. Res. Inst. Malaysia Plrs' Conf., Kuala Lumpur, 402(1973). John, C.K.Ponniah, C.K.Lee.H.and Ibrahim,A."Treatment of effluent from blok rubber factories" Proc. Rubb. Res. Inst.., Malaysia Plrs' Conf, kaula Lumpur (1974). Molesworth, T.V."The treatment of aqueous effluent from rubber production using trickling filter". Proc. Nat. Rubb.Res.Conf., Kuala Lumpur, 944(1970). Gale, R.S."Speculative design studies for purification of skim serum in trickling filters". Rubb.Res.Inst. Malaysia Chem. Div., Report No.41 (1961). Ponniah, C.D."Treatment of acidified skim serum by laboratory scale oxidation ditch" Proc.Agro-lnd.Waste Symp. Kuala Lumpur.74 (1975). Chick, W.H. "Dunlop studies of treatment for latex concentrated factory effluents". Inst.Estates Berhad Res.Dep.Commun.Meet (1975). Ponniah, C.D., john, and C. K. and Lee,H."Treatment of effluent from latex concentrate factories; Preliminary Report: RRIM Planters Conf., Kuala Lumpur(1976)
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Paper Type | : | Research Paper |
Title | : | Effect of Nano Silica in Rice Husk Ash Concrete |
Country | : | India |
Authors | : | K.V.Priya1, D.Vinutha |
Abstract: A Concrete is the most commonly used material for construction and their design consumes almost the total cement production in the world. Concrete is vulnerable to deterioration, corrosion & cracks. The use of large quantity of cement leads to increasing CO2 emission and as a consequence, the greenhouse effect. A method to reduce the cement content in concrete mixes is the use of Silica fines. However, the commercial NS is synthesized from rice husk ash (RHA). This work presents a laboratory studies on the preparation of rice husk ash by burning at 7000c for 3h.Consequently, silica content obtained after heat treatment is 90.3%.SEM results shows that 2.5N NAOH for 3h provided agglomerate particles with dimension 5-10nm.As the burning process strongly affects the pozzolanic activity of produced RHA, in some cases RHA concretes suffer low initial strength. Integrating NS with RHA in concrete Seems to be beneficial to overcome this problem. However, an effort is to be made to investigate the effect of Nano silica (NS) in improving the properties of RHA concrete. Accordingly 0.5%, 0.75%, 1% NS is incorporated into RHA concrete. The amount of RHA was 20%, (by Weight of cement) which is an acceptable range and is most often used. The compressive and Flexural strength tests are to be carried out at 28 days.
Keywords: Nano Silica, RHA, SEM, NaOH.
[1] ASTM C1202 (2000), "Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration". Annual Book of American Society for Testing Materials Standards, C04.02. [2] J.J.Gaitero, I.Campillo and A. Guerrero, "Reduction of the calcium leaching rate of cement paste by addition of silica nanoparticles", Cement and Concrete Research 38 (2008), pp 1112–1118 [3] Li Hui, Xiao Hui-gang, Yuan Jie, Ou Jin-ping.(2004). "Microstructure of cement mortar with nano-particles" Composites: part B; 35: 185-189. [4] Aiu,M. (2006), "The chemistry and physics of Nano Cement" research experience for under graduate in bridge engineering, university of Delaware. [5] T.Ji, "Preliminary study on the water permeability and microstructure of concrete incorporating nano-SiO2", Cement and Concrete Research 35 (2005), pp 1943 – 1947 [6] LiG( 2004). "Properties of High-Volume Fly Ash Concrete Incorporating Nano-SiO2."Cement and Concrete Research; 34:1043-1049
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Paper Type | : | Research Paper |
Title | : | Influence of silica fume on concrete |
Country | : | India |
Authors | : | Prof. Vishal S. Ghutke1, Prof. Pranita S.Bhandari |
Abstract: This paper presents an overview of the present state of construction of cofferdam techniques with special emphasis and a brief on other techniques developed world over for mitigating hydraulic forces on the temporary structures. A cofferdam is a temporary structure designed to keep water and soil out of the excavation in which a bridge pier or other structure is built. When construction must take place below the water level, a cofferdam is built to give workers a dry work environment. Sheet piling is driven around the work site, seal concrete is placed into the bottom to prevent water from seeping in from underneath the sheet piling, and the water is pumped out. There are different types of cofferdam, some are used to support excavation operation and some are enclosed type box placed in the water. The present case study deals with step by step procedure adopted at Pipav Port, Rajula District, Gujarath. It depicts the intricacy of the management of the work at site and gives lot of insights to such similar works involving details of bentonite slurry, rock bund, planning and execution of interlocking sheet piles, reinforcement, concreting, plants and equipment, safety procedures to be adopted for the construction of cofferdam.
Keywords: Anchors, Bentonite, Capping beam, Integrated piling ring, Sheet piles..
1. Park Y.S., Suh J.K., Lee J.H., Shin Y.S.: Cem.Concr.Res.29, 1397 (1999). 2. Nehdi M., Hayek M.: Cem.Concr.Res. 35, 731 (2005). 3. Mohamed s. Morsy, Sayed s. Shebl, Effect of silica fume and metakaoline pozzolana on the performance of blended cement pastes against fire, Ceramics - Silikáty 51 (1) 40-44 (2007)
4. S.Bhanja, B Sengupta, Influence of silica fume on the tensile strength of concrete, Cement and Concrete Research, 35(4), 743–747(2005) 5.N. K. Amudhavalli, Jeena Mathew, Effect of silica fume on strength and durability parameters of concrete, International Journal of Engineering Sciences & Emerging Technologies, 3(1), 28-35(2012)
6.Heba A.Mohamad, Effect of fly ash and silica fume on compressive strength of self-compacting concrete under different curing conditions, Ain Shams Engineering Journal, 2( 2), 79–86 (2011)
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Paper Type | : | Research Paper |
Title | : | Water surface profile along a meander path of a sinous channel |
Country | : | India |
Authors | : | Arpan Pradhan1, Saine S. Dash2, Kishanjit K. Khatua3 |
Abstract: Meandering channel flows are ambiguous for natural flow systems such as rivers. This pattern of flow is generally followed by rivers to minimization the energy losses.Due to existence of secondary flow, flow characteristics in channel bends are much more complicated than those in straight channels. In channel bends, the secondary flows occur due to imbalance between centrifugal force and pressure gradient. In other words, close to the inner wall and also at the channel bed, pressure gradient exceeds centrifugal force and conveys water in a transverse direction towards the inner wall. At the free surface centrifugal force drives the flow to the outer wall. The interaction between the main flow and the secondary flow forms the so-called helical flow at the bend. Hence, water surface, on entering a bend finds a non-linear transversal slope due to centrifugal force. This slope is greater in the inner half than its outer half. Understanding this characteristic of flow in a channel bend is very important in designing hydraulic structures at such locations.Knowledge of the characteristics of surface profile at different sections is important in flood modelling and forecasting which helps in the design of hydraulic structures.In this paper, An experimental investigation has been carried out to study the transverse profiles of water surface of a meandering channel. Investigation has been made at different sections along a meander path i.e from one bend apex to another where the water surface profile changes its course at the cross-over.
Keywords: cross-over, meander path, meandering channel, transverse profile
Shiono, K., Muto, Y., Knight, D.W. & Hyde, A.F.L. (1999). "Energy Losses due to SecondaryFlow and Turbulence in Meandering Channels with Overbank Flow."Journal of Hydraulic Research, IAHR, Vol. 37, No. 5, pp. 641-664. Blanckaert, K. and Graf, W.H.: Mean flow and turbulence in open channel bend.Journal of Hydraulic Engineering- ASCE 127, 835-847 (2001) Booij, R: Measurementsand large eddy simulation in some curved flumes. Journal of Turbulence-4, 8-16(2003) VanBalen, W., Uijttewaal, W.S.J., Blankaert, K.: Large-eddy simulation of a mildly curvedopen-channel flow. Journal of Fluid Mechanics- 630, 413-442 (2009). Bodnar, T. and Prihoda, J.: Numerical simulation of turbulent free-surface flow in curved channel. Journal of Flow Turbulent Combust 76, 429-442 (2006)
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Paper Type | : | Research Paper |
Title | : | The effect of zone factors on wind and earthquake loads of high-rise structures |
Country | : | India |
Authors | : | Dr. K. R. C. Reddy1, Sandip A. Tupat2 |
Abstract: This paper presents a comparative study of wind and earthquake loads to decide the design loads of a multistoried building. The significant of this work is to estimate the design loads of a structure which is subjected to wind and earthquake loads in a particular region. It is well known fact that the earthquake loads may be estimated in particular zone with a specified zone factor. Then the wind load of that zone can also be estimated based on the basic wind speed and other factors of that particular region. However, the wind velocity is stochastic and time dependent. In the present study a multistoried building is analyzed for earthquake loads in various zones based on IS 1893 and for wind loads IS 875 code is used. The wind loads are estimated based on the design wind speed of that zone with a variation of 20%. The wind loads so obtained on the building have been compared with that of earthquake loads. Finally it is found the wind loads are more critical than the earthquake loads in most of the cases.
Keywords: Zone factor, wind loads, earthquake loads, design loads, high rise buildings
Holmes , J.D ., Tamura ,Y ., and Krishna , P.(2008).‟ Wind loads on low, medium and high-rise buildings by Asia-Pacific codes ‟ , Proc. Of
Int. Conference on Advances in Wind and Structures , (AWAS‟08) May 2008, pp 1-16.
Raj, R., Kumar, A., and Ahuja, k.(2013). " Wind load on I-shape tall buildings‟, Int. Jour of Scientific Research & Development , Vol.01,
May-Jun 2013, pp 20-23.
Raj, R., Kumar, A., and Ahuja, k.(2013). "Wind Loads on Cross Shape Tall Buildings‟ , J. of Academia and Industrial Research ,Volume 2,
July 2013, pp 111-113.
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Paper Type | : | Research Paper |
Title | : | Seismic Analysis of Structures with Irregularities |
Country | : | India |
Authors | : | Neha P. Modakwar1, Sangita S. Meshram2, Dinesh W. Gawatre |
Abstract: Irregularities are not avoidable in construction of buildings; however the behaviour of structures with these irregularities during earthquake needs to be studied. Adequate precautions can be taken. A detailed study of structural behaviour of the buildings with irregularities is essential for design and behaviour in earthquake. The main objective of this study is to understand different irregularity and torsional response due to plan and vertical irregularity and to analyze cross shape and L shape building while earthquake forces acts and to calculate additional shear due to torsion in the columns. This study was initiated to quantify the effect of different degrees of irregularity on Structures designed for earthquake using simplified analysis. The types of irregularity Considered was (a) Horizontal Irregularity- Re entrant corner (b) Vertical Irregularity -Mass Irregularity. The main objective of this study is to understand different irregularity and torsional response due to plan and vertical irregularity and to analyze cross shape and L shape building while earthquake forces acts and to calculate additional shear due to torsion in the columns.
Ying Zhou et al., "seismic performance evaluation of an irregular high-rise building" 4th International Conference on Earthquake engineering Taipei, Taiwan 1October 12-13, 2006 Robert Tremblay1 et al., "Seismic Performance of Concentrically Braced Steel Frames in Multistory Buildings with Mass Irregularity" Dr. S.K. Dubey et al., "seismic behaviour of asymmetric R.C. buildings" International Journal of Advanced Engineering Technology E-ISSN 0976-3945
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Paper Type | : | Research Paper |
Title | : | Progressive Collapse Potential of Irregular Concrete Building |
Country | : | India |
Authors | : | B. Gururaja1, R. Sridhar |
Abstract: The progressive collapse of building structures is initiated when one or more vertical load carrying members are removed. Once a column is removed due to a vehicle impact, fire, earthquake or any other man-made or natural hazards, the weight of the building transfers to neighboring columns in the structure. The present study investigates the vulnerability to progressive collapse of mid-rise RC framed buildings of complex structural configuration. Following the GSA (2003) Guidelines the potential for progressive collapse of structures is assessed using the linear static analysis procedure in the so called "missing column" scenarios. The Linear static analysis is carried out using software ETABS V9.6 for building which is designed for ductile standards to resist earthquake in seismic Zone II. Keywords: Ductile, linear static analysis, progressive collapse, potential, Structural configuration.
A.Marchis, M. Botez & A.M. Ioani. "Vulnerability to Progressive Collapse of Seismically Designed Reinforced Concrete Framed Structures in Romania". 15 WCEE LISBOA 2012. General Service Administration. "Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Modernization Projects", June 2003.
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Paper Type | : | Research Paper |
Title | : | Strengthening of reinforced concrete beam column joint under seismic loading using ANSYS |
Country | : | India |
Authors | : | Syed Sohailuddin. S. S, Rashmi. G. Bade, Ashfaque A. Ansari |
Abstract: The behavior of reinforced concrete moment resisting frame structures in recent earthquakes all over the world has highlighted the consequences of poor performance of beam column joints. Beam column joints in a reinforced concrete moment resisting frame are crucial zones for transfer of loads effectively between the connecting elements in the structure. The reversal of forces in beam-column joints during earthquakes may cause distress and often failure, when not designed and detailed properly. In the present study, finite element modeling of four types of exterior beam-column joint specimens is done by using ANSYS10.0.The first specimen confirms to the guide lines of IS 13920: 1993 for seismic resistant design. Second one is detailed with additional diagonal cross bracing bars at joints and beam reinforcements. Third with cross bars in beam region of 6mm instead of cross bars in joint. Fourth specimen with cross bars of 8mm instead of 6mm in beam region. The specimens are subjected to similar reverse cyclic loading to simulate earthquake loading in structures. The specimen with cross bars of 8mm in beam region shows better performance under reverse cyclic loading.
Keywords: Beam column joint, cyclic load, ductility, finite element models, Reinforced Concrete, seismic loading.
[1] K.R. Bindhu and K.P. Jayab (2010) , "Strength and behavior of exterior beam column joints with diagonal cross bracing bars", Asian Journal Of Civil Engineering (Building And Housing) Vol. 11, No. 3 Pages 397-410. [2] S.R. Uma and A. Meher Prasad (2008), "Seismic Behavior of Beam Column Joints in Reinforced Concrete Moment Resisting Frames", IITK-GSDMA-EQ31-V1.0 Final Report A Earthquake Codes IITK-GSDMA Project on Building Codes. [3] S.J. Hamil, P.S. Baglin and R.H.Scott (2004), "Finite element modeling of reinforce concrete beam-column connections,"University of Durham, UK Feb [4] Nilanjan Mitra (2007), "An analytical study of reinforced concrete beam-column joint behavior under seismic loading, University of Washington",. [5] Jaehong Kim and James M. LaFave (2009), "Joint Shear Behavior of Reinforced Concrete Beam-Column Connections subjected to Seismic Lateral Loading", NSEL Report Series Report No. NSEL-020 November. [6] Laura N. Lowes and Arash Altoontash (2003), "Modeling Reinforced-Concrete Beam-Column Joints Subjected to Cyclic Loading", ASCE: 0733-9445. [7] P.Rajaram A. Murugesan and G.S.Thirugnanam (2010), "Experimental Study on behavior of Interior RC Beam Column Joints Subjected to Cyclic Loading", International Journal of Applied Engineering Research, Dindigul Volume 1, No1. [8] Konstantinos V. Spiliopoulos and Georgios Ch. Lykidis (2007), "Finite element analysis of RC frame joints under cyclic loading, Rethymno", Crete, Greece, 13–16 June. [9] ANSYS10.0 (1995), ANSYS Users manual, (ANSYS, Inc.), Canonsburg. [10] IS 1893: 2002, "Indian Standard Code on Criteria for Earthquake Resistant Design of Structures, (Bureau of Indian Standards)", New Delhi, India.