Seismic Analysis and Design of INTZE Type Water Tank (original) (raw)
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IRJET- Elevated Water Tank Design and Seismic Study in Various Zones
IRJET, 2021
The need for water varies throughout the day. It changes from hour to hour. We need to store water in order to deliver a consistent volume of water. As a result, water tanks must be built to accommodate the public's need for water. They play a critical role in municipal water supply, firefighting systems, and a variety of other applications. In India, the Intze style of overhead water tank is widely used. The purpose of this research is to understand the behaviour of an overhead water tank responds to various loading situations during earthquakes. The Intze tank was designed using the IS:3370 part I (General Requirement) and Part II (Reinforced Concrete Structure) code of practice for concrete structures for liquid storage. In this research study the capacity of 250 m 3 intze tank has been constructed and studied using the response spectrum approach and SAP2000 is used to do the analysis. Seismic response parameters such as base shear, base moment, and tank displacement under empty and full conditions in seismic zones II, III, IV, and V were computed and the results were compared.
IRJET- Seismic Performance Evaluation of Elevated Intze Water Tank by Using Finite Element Analysis
IRJET, 2020
Reinforced concrete elevated intze water tank are very important structures. They are considered as main lifeline elements during and after earthquakes. An intze tank behaves like an inverted pendulum which consists of huge water mass at the top of a slender staging. This is most critical consideration for the failure of the tank during earthquake. Basically, support system, so called staging is formed by a group of columns and horizontal braces providing at column. Staging is responsible for lateral resistance of complete structure. This analysis is carried by finite element method as intze tank subjected to seismic loading on zone 4 according to the Geographical Survey of India. Comparison of principle stresses and deflection for different filling condition is done for seismic and wind loading is done. The analysis can be performed for different type of water tank with different capacity. Same analysis can be performed for different seismic zone in India. This analysis can also be performed with using different storing material instead of water. Stresses are increase with increase the water level in tank due to FSI effect of fluid, stresses at tank full condition are found approximately double of the stresses in tank empty condition. Deflection are also increase with increase the water level in tank, Increments in stresses and deflections with increment of water level is very less in application of wind load, maximum stresses and deflection in different filling condition are almost same for wind loading.
Seismic Analysis of Elevated Intze Type Water Tank
2019
As known from previous occurrences, Elevated water tanks were heavily damaged or collapsed during earthquakes. This might be due to lack of knowledge about seismic behaviour of water tank or improper geometrical selection of staging patterns. The staging plays critical role in design of water tanks as in water tanks large mass is supported by slender staging. The main objective of this study is to understand the seismic behaviour of tank under various staging patterns using SAP2000 software. In this paper different staging patterns considered are normal hexagonal bracing, hexagonal and cross bracing and hexagonal and radial bracings.
Seismic Behaviour of Intze Tank
In the Proceedings of Advances in Construction Materials and Structures (ACMS-2018), IIT Roorkee, Roorkee, Uttarakhand, India, 2018
Overhead water tanks are used for storing water in public water distribution system and large scale industries. In view of its economy and durability, Intze tank designs have been commonly used for decades. However, the current structural design of the tank is very much vulnerable to seismic loads. Thus, it is important to emphasize on the safety of such tanks against earthquakes. The present study investigates the different seismic parameters like base shear, base moments and displacements of joints obtained by analyzing the numerical model of tank for the seismic load by using both equivalent static method and response spectrum method on SAP2000. Further, the staging is provided with URM infills and the results obtained are compared. Consequently, enhancements in the structural design of the tank have been suggested to improve the performance against lateral loads.
IAEME, 2019
Elevated WTs are used to store water in the public water supply system and they play a significant role in the seismic areas. The flaw in WTs might be due to a lack of water or problem with people to suppress the flames during seismic activity. The seismic activity caused various breakdowns such as the breakdown Protection of ground and lack of support to the stages. The aim of this paper is a Reaction spectrum analysis, seismic analysis and comparison of overhead Intze WT, circular WT, and rectangular WTs with unfilled, ½ filled and complete in earthquake 3rd & 5th field is done by implementing in STAAD Pro V8i SS6. These three categories of high circular, rectangular & Intze WTs of 450000 liters capacity holds up on RCC frame stages height 27 m under seismic activity loads according to outline code section 2 of IS 1893:2002.
HELIX, 2019
Water tank structures are of high importance as they act as a storage unit for basic necessity. During disasters it is very important that these do not fail and serve the purpose they are intended for. So it becomes very necessary that water tank is analyzed and designed for seismic and wind forces so that these structures do not fail under effect of Earthquake and Wind. Our study deals with seismic wind analysis w.r.t., Base shear, Seismic Zone, Response spectrum, Time Period of Intze water tank for different zones as per Indian Standards. Analysis has been carried out using Staad pro software.
Seismic Analysis of Circular Water Tank Designed by Indian Standard Code and Euro Code
IJRASET, 2021
Water tanks are widely used for storage of drinking water. Water tanks and especially the elevated water tanks are structures of high importance which are considered as main lifeline elements that should be capable of keeping the expected performance i.e. operation during and after earthquakes. In this research paper, the analysis of the seismic behaviour of the elevated circular water tank by Indian standard code and Euro code is carried being carried out. The analysis is carried out on 35 cubic meter capacity elevated circular water tank in zone III and spectrum zone II and on three different soil conditions i.e. hard soil, medium soil and soft soil using ETABS software as per Indian standard code and European standard code. The results of base shear, base moment, storey displacement and storey drift are obtained from both codal provisions.
Seismic Analysis and Design of INTZ Water Tank by Using Staadpro
Water tank is used extensively for storage water, inflammable liquids, and other chemicals. The current analysis and design of supporting structures of elevated water tanks are extremely vulnerable under lateral forces due to wind and an earthquake, By past provided illustration when a great many water tank staging's suffered damage and a few collapses. The aim of this paper is to understand the behaviour of Elevated Water Tank with the framed staging in lateral earthquake loading using Indian code guidelines by using Staad Pro. By using Rapid Assessment of Seismic Safety of Elevated Water Tank gives the optimum value of Base Shear and Base Moment and hence it is economical. The design based on above gives the most economical section and also it is safe.
IRJET, 2022
The high-end water tank is made of reinforced concrete A building of great importance. They are considered the main lifeline elements during and after the earthquake. Inze tank behavior Something like an inverted pendulum made of a huge mass of water at the top of lean staging. this is the most important Consideration of tank failure during an earthquake. Basically, the support system, the so-called staging, A group of columns and horizontal brackets that form a column. staging is fully responsible for lateral resistance structure. This analysis is performed by the finite element method as follows. intze tank seismic stress in zone 4 acc Geographic Survey of India. Comparison of principles different packing states of stress and deflection occur. Applying Earthquakes and wind loads . The analysis is The performs for different types of water tanks. capacity. You can run the same analysis for different earthquakes zone in India. This analysis can also be performed using different storage materials instead of water. Stress increases as water level rises The tank is due to the FSI effect of liquids, which causes stress when the tank is full. Found about twice the empty tank voltage on the state. As the amount of water increases, the deflection also increases. At the level in the tank, the stress increases and deflection occurs. The water level rises very little when the wind hits it Loads, Maximum Stresses and Deflections with Different Fillings The conditions are almost the same as for wind loads
Liquid storage tanks whether it be underground or overhead or on the surface are commonly used in industries for storing chemicals, petroleum products, many such fluids, etc. and for storing water in public water distribution systems. Importance of maintaining safety norms of such tanks against seismic loads cannot be neglected and taken lightly. Indian seismic code IS 1893:1984 showed very limited provisions on seismic design of both elevated and underground tanks. Compared to present international practice, those provisions of IS 1893:1984 are highly inadequate. Moreover, the code failed to cover ground-supported tanks. In 2002, revised Part 1 of IS 1893 was established in the market by the Bureau of Indian Standards (BIS) in order to maintain safety issues for these tanks. The present study will deal with the whole design analysis and parametric study of structural analysis of circular and rectangular water tank to avoid stresses and cracking. Modal analysis of tank will be done ...