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S. Muthu Kumar ¹, G. Saranya ², M. Lakshmipathy ³, K.S. Satyanarayanan ³

Affiliations
1 Department of Civil Engineering, SRM University,Kattankulathur, Chennai - 603203, Tamil Nadu, IN
2 Department of Structural Engineering, SRM University, Kattankulathur, Chennai - 603203, Tamil Nadu, IN
3 Department of Civil Engineering, SRM University,Kattankulathur, Chennai - 603203, Tamil Nadu

Abstract

Objective:The aim of this work is to study the linear behavior of infilled frames with different interface materials like cement mortar, cork and lead under static lateral loading. Method:This paper presents the analytical study of a two bay three storeyed reinforced concrete infilled frame under static lateral loading.A bare frame and infilled frames with various interface materials (cement mortar, cork and lead) have been analysed.Findings:In particular, the paper discusses the lateral stiffness of the frames and gives a comparison on the effect of interface materials on the lateral stiffness of the frames under static lateral load. It is found that cement mortar interface has higher stiffness when compared to lead and cork. Applications/Improvements: The results of this paper can become the basis for further studies on the behaviour of these interface materials under seismic loading.

Keywords

Infilled Frames, Interface, Lateral Stiffness and Static Loading

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ER. A. Veerappan ¹, M. Lakshmipathy ¹

Affiliations
1 SRM Institute of Science & Technology, Chennai - 603203, Tamil Nadu, IN

Abstract

Objectives: Since the present storage capacity of drinking water by four reservoirs (Poondi, Chembarambakkam, Red Hills & Cholavaram) is only about 11 TMC, there is an urgent necessity to create additional storage facilities. A new project by taking an open canal from Krishna Water Canal, storing the same in the proposed two tank - reservoir and again pumping into Krishna Water canal, leading to the existing Poondi Reservoir is now implemented by TN Public Works Department. Methods/Statistical Analysis: By inadequacy in studying all other alternate measures available, Government of Tamilnadu officials embarked upon in creating a new reservoir of 0.5+0.5TMC (2 fillings) storage capacity-by converting 2 existing tanks, namely Kannankottai and Thervai Kandigai near Uthukkottai in Thiruvallur district at an estimated cost of Rs.330 Crores, including Rs.160 Crores towards land acquisition. Again, by a bad planning, this new reservoir water is initially taken from Krishna Water canal at +2200m and again pumped into the same canal at LS +3850m –which flows another 21.425KM to reach the Poondi Reservoir. It causes considerable quantity loss of precious drinking water by evaporation, seepage and illegal pumping en-route besides causing pollution of drinking water. Findings: This research paper analyses the deficiencies in the above Government sponsored project proposals and suggests 3 alternative efficient and cost effective proposals without involving land acquisition, no loss of water as well as no pollution for implementation in the best interest of the stakeholders, taking all the field realities into account. The proposal of Water Resources Organization, TNPWD does not actually create additional storage except an intermediate transit point. Further it does not increase the storage capacity after spending Rs.330+Rs.100Crores. Instead, the deepening the Poondi Reservoir by 1.00m depth creates an additional storage of about 1.152TMC at cost of Rs.198.85Crores only. Alternatively it is further suggested that if an off take canal from KW canal at LS + 2200m is taken – by closed RC concrete pipes directly to nearby Red Hills Reservoir it cost about Rs.280.23 Crores without land acquisition, thereby reducing the cost of transporting water from Poondi Reservoir to Red Hills tank (P2). Improvements: By these alternative proposals, time and cost over run towards implementation of the project is reduced very much besides elimination of evaporation loss and pollution of drinking water en-route.

Keywords

Bulk waterdrawal by RC Concrete Pipes, Drinking Water Supply, Open Canal.

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S. SindhuNachiar ¹, K. S. Satyanarayanan ¹, M. Lakshmipathy ¹

Affiliations
1 Department of Civil Engineering, SRMIST, Kattankulathur, Kanchipuram Dt, TN, IN

Abstract

Biomimicry is the concept of mimicking nature and is efficient in terms of its performance, sustainable and innovative in terms of solving a problem in a unique way rather than the conventional method and has future scope. In the field of architecture, the concept can be used to improve the design of the structure, its construction techniques and to reduce its impact on the environment. This knowledge makes us think in an innovative way for creating improved civil engineering and architectural structures. Human Skeleton is the highest evolving species. The human leg bone (Femur) carries the total weight of the body and the human hand bone (Humerus) acts as a tension member. Similar to the natural human skeletal elements, the column which is a structural element plays the major role in the building by transferring the total weight of the body to the earth surface. This key idea of nature is mimicking to the composite columns of the framed structures, which should withstand both vertical and horizontal loading of structure. Research is carried out to model a column similar to the stress pattern of the human leg bone and a tie member similar to the stress pattern of human hand bone. By which the human skeletal system is being mimicked to form a structural system for building construction. In this paper some of the bio inspired structures and the literatures related to biomimics and the femur and humerus bone analysiswere discussed.

Keywords

Biomimics, Skeletal System, Structural Systems, Literature, Femur, Humerus.

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