ANALYSIS OF A STEEL BUILDING AGAINST EARTHQUAKE LOADS (original) (raw)

SEISMIC DESIGN OF MULTISTORIED AND MULTI BAY STEEL BUILDING FRAME

IRJET, 2022

Steel is one of the world's most extensively used building materials. Steel is an ideal choice for earthquake design due to its inherent strength, hardness, and ductility. To take advantage of these benefits in seismic applications, the design engineer must be familiar with the relevant steel design provisions as well as the purpose represented in the codes. The building structure for this project was designed according to IS 1893-2002 and IS 800. The purpose of this study is to explore and develop an earthquake-resistant multistory and multibay (G+5) building frame using IS 1893 and IS 800:2007. The building stands six floors tall, with three horizontal bays and five lateral bays. The random piece selection was done in a systematic manner. The equivalent static load approach and the Response Spectrum method were both used in the investigation.

IJERT-Consideration of Seismic Design of Multistoried Steel Structure using STAAD-Pro

International Journal of Engineering Research and Technology (IJERT), 2014

https://www.ijert.org/consideration-of-seismic-design-of-multistoried-steel-structure-using-staad-pro https://www.ijert.org/research/consideration-of-seismic-design-of-multistoried-steel-structure-using-staad-pro-IJERTV3IS20726.pdf Structural design is a process to achieve dimensions of elements of structure, as far as design point of view is concern, to satisfy strength and stiffness for its intended use and life. Structural design does not evolve into a unique solution. But it is an art and skill which acquires by experience of lot of designs as well as guesswork. In the present work, the steel structure is the moment resisting frame with deck system for floors as well as brick work for wall. Study showed that the design of column using different types of Indian steel section such that I-section, double I-section, face to face channels section with IS 800:1984. Using above sections, the seismic design of (G+1), (G+3), & (G+6) steel frame was carried out by STAAD-Pro. Also the present work considered all important design parameter in STAAD-Pro. It is concluded that using double I-section with optimum weight per meter for the steel frame is the most economical section instead of single section with maximum weight per meter. The RCC frame (G+1) also designed by STAAD-Pro and compared with Steel frame with face to face channel section for columns.

ANALYSIS OF STEEL FRAMES WITH BRACINGS FOR SEISMIC LOADS

IAEME, 2019

In recent decants steel structure had played an important role in construction industry. Providing strength, stability, ductility for buildings designed for seismic loads. It is necessary to design a structure that can withstand under seismic loads. Providing steel knee braces is one of the structural systems used to resist earthquake forces on structures. Steel bracing is economical, easy to erect and occupies less space which is flexible to design to meet the required strength and stiffness. There are various types of steel bracing (X, knee bracing). In knee brace frame system (KBFS) the non-buckling diagonal bracing provide most of the lateral stiffness, the flexural yielding of knee element. In our project a 6 storey steel frame building with knee bracing system with floor plan of 9 m x 9m is considered. We studied the performance of a 6 storied steel frame building with knee bracing system and compared with bare frame. Pushover analysis, equivalent static analysis, Response Spectrum analysis, Time history analysis is performed in ETABS based on IS 1893:2002 (part 1) guidelines. The manual calculation was done on the basis of Equivalent static analysis and Response spectrum analysis to find out base shear for foundation and lateral force for each storey deck slab and compared the values with bare frame. Depending on the complexity in the problem for bracing models, we had used Etabs software in order to analysis the Base shear and lateral shear. The results were plotted in the form of graphs and tables for their inter storey drift and inter storey displacement.

COMPARATIVE STUDY AND SEISMIC ANALYSIS OF A MULTISTOREY STEEL BUILDING

Steel Building in the world in the last decades, the steel structure for the building industry has played an important role in the most useful content. Providing the strength, stability and flexibility are the key purposes of seismic design. It is to design a structure under seismic load is required to perform. Structural bracing element in the system plays an important role in structural behavior during earthquakes. Bracing pattern of massive steel framed building can modify the behavior of the global seismic. In this research time history analysis is carried out for 7 storey and 12 storey steel frame building with different pattern of bracing system. Three types of sections i.e. ISMB, ISWB and ISB sections are used to compare for same patterns of beam, column and bracings. A software package SAP2000 is used for the analysis of steel buildings and different parameters are compared. The property of the section is used as per IS 800:2007 which incorporates Limit State Design philosophy. In this 7 storey and 12 storey steel frame building is analyzed for various types of concentric bracings like inverted V, X and without bracing and Performance of each frame is carried out and studied the comparatively through time history analysis.

IRJET- SEISMIC EVALUATION AND DESIGN OF HIGH RISE STEEL BUILDING FRAMES

IRJET, 2020

Steel is one of the most frequently used construction material all over the world. The major characteristics of steel are its toughness, strength and higher value of ductility which are considered to be very ideal for seismic analysis and design. To use these merits during seismic design of structure, various codes related to steel design have been used so far. In this present work, a high rise structure G + 5 is considered in the form of moment-resistant frame. These frames are multi-bay type having total five bays in transverse direction and three bays in longitudinal direction. The selection of particular section is done as per IS : 800-2007 by the standard procedure. The frame considered is analyzed in STAAD. Pro software. It is subjected to Response Spectrum Analysis (RSA) Method and Equivalent Static load method. Based on both the types of analysis, storey displacement and base shear are calculated and compared for both the methods.

Study on Design of Highrise Steel Building Frames and Its Seismic Evaluation

International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022

Seismic Response Analysis of the given structural system is considered to be a subset of stability and configurationally analysis of the system. It is subjected under the calculations obtained in the form of structural response of the buildings produced by the earthquakes. It is found to be the essential and prime component of the designing phenomenon of the structures, or assessment of structural configuration and as a retrofit for the seismic prone regions of the India. The most severe types of earthquakes are essentially emerged closely nearer to the boundaries of the tectonic plates that are covered in the form of globe surface. These plates tries to move with respect one another in the form of relative motion but are resisted by doing so in terms of generation of friction until or unless the various stresses produced between the plates under epicenter reach to such a extent that the movement between the plates gets generated suddenly, which is termed as the earthquake. The local shock produces waves inside the ground which further propagates towards the surface of earth by the movement creation at the structural bases. The intensity of waves decreases with the propagation of distance as we move away from the point of epicenter. Hence, it results into the formation and existence of such regions on the earth surface having very high or less risk of seismic assessment, which indirectly depends upon the proximity to the main tectonic plates boundaries. Apart from the major earthquakes that generally exists near the boundaries of tectonic plates, there are some other earthquakes, that may have their origin and formation at the interior parts of tectonic plates nearer to the fault lines. Such kind of earthquakes are Called as Intra-plate earthquakes. These earthquakes consist of lesser energy, but may be destructive to the area nearer to the point of epicenter The earthquake imparts the action towards the structure in the form of shaking of ground and its motion in the form of vertical and horizontal components. The horizontal component consists of very high strength and the structures are usually designed to resist gravitational forces than horizontal forces, and as a results, it is the most severe component. The vertical components of the earthquake force are found to be 50% of its value in horizontal direction except in the region of point of epicenter because in the region of point of epicenter, both the components are of same orders. I.

Experimental Study on Steel Frame Building with Steel Bracing by Seismic Analysis

2017

The study of braced steel frame response is widely studied in many branches of Structural engineering. Many researchers have been deeply studying these structures, over the years, mainly for their greater capacity of carrying external loads. Every Special moment resisting frames undergo lateral displacement because they are susceptible to large lateral loading. As a consequence, engineers have increasingly turned to braced steel frames as an economical means for earthquake resistant loads. The present study consist a Steel Moment Resisting Frame (SMRFs) with concentric bracing as per IS 800 2007. K bracing, Inverted V bracing, X bracing and an unbraced steel frame is considered for comparative study. Dimensions of each type of steel frame are similar having G+12 storey, 40 m height. Each floor is of 3m height and ground floor of 4 m height having four no. of bays along length (12m) and width (12m). The analysis is done by using standard package STADD pro. The comparison of these mod...

Seismic Evaluation and Design of High Rise Steel Building Frames

2021

The widespread domain of the application of the steel structures in the technological arena has paved the way for the number of research works concerning their design, seismic behavior and stability. However, there has been a limited researches on steel structures that had been conducted so far. It is highly essential to study their design and seismic behaviour of such structural components to determine their stability and suitability during earthquake of varying intensities. This present chapter deals with the previous studies on the design and seismic analysis of structure. A study has been conducted based on the guidelines over the dowels of the epoxy grouted in earthquake strengthening projects [Wylli Jr. 1988]. Frequently, it is mandatory to strengthened existing concrete structures for improved seismic performance, either after a damaging earthquake or in preparation for a future extent. This work includes the attachment of new steel or concrete member to the pre-existing stru...

Consideration of Seismic Design of Multistoried Steel Structure

Structural design is a process to achieve dimensions of elements of structure to satisfy strength and stiffness for its intended use and life. Structural design does not evolve into a unique solution. It is an art and skill which acquires by experience and guesswork. The process is started from deciding the structural configuration on the basis of planning and functional requirement, estimation of various types of external forces that the structure is likely to be subjected during its lifetime, analyzing the structure for all possible and odd combinations of forces to arrive for design action, selection of dimensions to satisfy strength of material as well as safe functioning conforming to relevant codal provisions. In this process, in the end, there can be several strong and safe designs, but the one which is safe, strong and at the same time most economical by weight and hence by cost is most desirable and acceptable. This work entitled the 'Consideration of Seismic Design of Multistoried Steel Structure' and in this, the steel structure is the moment resisting frame with deck system for floors and brick work for wall. Study showed the design of column using different types of Indian steel section such that I-section, double I-section, face to face channels section with IS 800:1984. Using above sections, the seismic design of (G+1), (G+3), & (G+6) steel frame done by STAAD-Pro. Also considering all important design parameter in STAAD-Pro. It is concluded that used double I-section with optimum weight per meter is most economical instead of single section with maximum weight per meter. The RCC frame (G+1) also designed by STAAD-Pro and S.M. Dhawade & P.S. Pajgade 178 compared with Steel frame having face to face channel section for columns.

Consideration of Seismic Design of Multistoried Steel Structure using STAAD-Pro

International journal of engineering research and technology, 2014

Structural design is a process to achieve dimensions of elements of structure, as far as design point of view is concern, to satisfy strength and stiffness for its intended use and life. Structural design does not evolve into a unique solution. But it is an art and skill which acquires by experience of lot of designs as well as guesswork. In the present work, the steel structure is the moment resisting frame with deck system for floors as well as brick work for wall. Study showed that the design of column using different types of Indian steel section such that I-section, double I-section, face to face channels section with IS 800:1984. Using above sections, the seismic design of (G+1), (G+3), & (G+6) steel frame was carried out by STAAD-Pro. Also the present work considered all important design parameter in STAAD-Pro. It is concluded that using double I-section with optimum weight per meter for the steel frame is the most economical section instead of single section with maximum wei...