scholarly journals Evaluating the Effect of Local Slenderness on the Response of Silo Supporting Steel Structure

2021 ◽  
Vol 9 (VI) ◽  
pp. 4546-4551
Author(s):  
Aiswarya Lekshmi GS
Keyword(s):  
Response Spectrum ◽  
Slenderness Ratio ◽  
Local Buckling ◽  
Steel Structure ◽  
Mode Shapes ◽  
Lateral Loads ◽  
Response Spectrum Analysis ◽  
Compression Members ◽  
Load Carrying ◽  
Steel Sections

Silos are commonly used for bulk storage of grain, coal, cement, carbon black, food products etc. Here in this project evaluates the effect of local slenderness on silo supporting steel structure. The strength of compression members made of steel sections depends on their slenderness ratio. Higher strengths can be obtained by reducing the slenderness ratio. Local buckling has the effect of reducing the load carrying capacity of columns and beams. Therefore, it is desirable to avoid local buckling before yielding of the member. For finding out the local slenderness, a silo supporting steel structure is modelled, analysed and designed using ETABS. Wind loads and earthquake loads as per Indian Standard codes are applied on the structure in order to find out the effect of lateral loads on slenderness limit. Modal analysis is done to get the required number of mode shapes. Response spectrum analysis is done to determine the dynamic characteristics of the structure.

Investigation on the Effect of Infilled Walls Utilizing Response Spectrum Analysis for Steel Staggered-Truss System

2012 ◽  
Vol 152-154 ◽  
pp. 34-39
Author(s):  
Qing Sheng Guo ◽  
Qing Shan Yang
Keyword(s):  
Spectrum Analysis ◽  
Earth Quake ◽  
Simulation Analysis ◽  
Response Spectrum ◽  
Steel Structure ◽  
3D Models ◽  
Structure Design ◽  
Seismic Load ◽  
Base Shear ◽  
Response Spectrum Analysis

Considering the structure type of the steel staggered-truss (SST) system, the effect of infilled walls will be major and need to be studied amply, some scientific design regulations need to be found for referrence. Based on two different 3D models considering or ignoring the stiffness of infilled walls (SIW), a numerical investigation is presented on the structural behaviors of the SST system utilizing the finite element 3D simulation analysis soft ware ETABS. The longitudinal structure is asymmetrical due to the SIW, it causes the torsion forces in the building. Comparing to the different results of response spectrum analysis, including storey drift and equivalent base shear under frequent earth quake and rare earth quake, some conclusions were made, including the capacity of the SST system under seismic load and the effect of the SIW for SST system. The increased base shear force factors due to the effect of the SIW were suggested for SST structure design, it is different from the other steel structure types.

scholarly journals Starred angles supporting secondary trusses

1991 ◽  
Vol 18 (1) ◽  
pp. 118-129
Author(s):  
Murray C. Temple ◽  
Kenneth Hon-Wa Mok
Keyword(s):  
Cross Section ◽  
Carrying Capacity ◽  
Slenderness Ratio ◽  
The Other ◽  
Load Carrying Capacity ◽  
Industrial Buildings ◽  
Compression Members ◽  
Load Carrying ◽  
Structural Connections ◽  
Open Nature

In some large industrial buildings, it is common to span large areas by using primary trusses in one direction and secondary trusses in the other. The secondary trusses frame into the vertical web members in the primary trusses. Starred angles are frequently used as the vertical web members in the primary trusses because of their symmetrical cross section and the ease with which the connections can be made. These starred angles are usually designed as axially loaded members, but the open nature of the cross section and the fact that the secondary truss frames into one of the angles has raised some doubts about this loading assumption. As a result of this concern, an experimental research program was undertaken to investigate the behaviour and strength of starred angle web members supporting secondary trusses. The results obtained indicate that these starred angle compression members are not concentrically loaded, as the stress distribution across the angles is not uniform. It was found that if the slenderness ratio is modified in accordance with the requirements of ASCE Manual 52, the load-carrying capacity of the starred angles supporting secondary trusses can be determined using Clause 13.3.1 of CAN3-S16.1-M84. Key words: angles (starred), buckling, columns (structural), connections, trusses.

scholarly journals DYNAMIC ANALYSIS OF MULTI STOREY BUILDING WITH AND WITHOUT SHEAR WALL

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
Sarwan Gupta ◽  
Shubham Gaikar ◽  
Kewal Patil ◽  
Swapnil Shelar ◽  
Harshad Thakare
Keyword(s):  
Dynamic Behaviour ◽  
Spatial Configuration ◽  
Response Spectrum ◽  
Slenderness Ratio ◽  
Shear Walls ◽  
Response Spectrum Analysis ◽  
Seismic Zones ◽  
Different Types ◽  
Structural Configurations ◽  
Storey Building

Nowadays, the number of buildings is constructed and designed according to the requirements and aesthetic viewpoints of the buildings every day. Most buildings are constructed in a certain spatial configuration, such as X-shaped, V-shaped, and the x and y coordinates are not parallel to the structure. The earthquake caused more damage to the different structures of the building. The main problem is the slenderness ratio. The main purpose of this project is to compare the dynamic characteristics of buildings with different structural configurations in seismic zones and soil types. In this study, a 12-story space configuration structure was considered, and the height of 3m on each floor did not exceed 36m, with shear walls and supports at different positions of the building. The dynamic behaviour of buildings in all seismic zones of magnitude III and on different types of soil (such as media) is studied. The structure has peripheral beams that carry RC shear walls with a thickness of 230 mm. The response spectrum analysis was carried out by using software of ETABS version

scholarly journals DYNAMIC ANALYSIS OF MULTI STOREY BUILDING WITH AND WITHOUT SHEAR WALL

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Sarwan Gupta ◽  
Shubham Gaikar ◽  
Kewal Patil ◽  
Swapnil Shelar ◽  
Harshad Thakare
Keyword(s):  
Dynamic Behaviour ◽  
Spatial Configuration ◽  
Response Spectrum ◽  
Slenderness Ratio ◽  
Shear Walls ◽  
Response Spectrum Analysis ◽  
Seismic Zones ◽  
Different Types ◽  
Structural Configurations ◽  
Storey Building

Nowadays, the number of buildings is constructed and designed according to the requirements and aesthetic viewpoints of the buildings every day. Most buildings are constructed in a certain spatial configuration, such as X-shaped, V-shaped, and the x and y coordinates are not parallel to the structure. The earthquake caused more damage to the different structures of the building. The main problem is the slenderness ratio. The main purpose of this project is to compare the dynamic characteristics of buildings with different structural configurations in seismic zones and soil types. In this study, a 12-story space configuration structure was considered, and the height of 3m on each floor did not exceed 36m, with shear walls and supports at different positions of the building. The dynamic behaviour of buildings in all seismic zones of magnitude III and on different types of soil (such as media) is studied. The structure has peripheral beams that carry RC shear walls with a thickness of 230 mm. The response spectrum analysis was carried out by using software of ETABS version.

scholarly journals STUDI EKSPERIMENTAL TEKUK LOKAL BATANG BAJA RINGAN CANAI DINGIN

2019 ◽  
Vol 3 (1) ◽  
pp. 16
Author(s):  
Astrida Puspita Sari ◽  
Agus P Rahamadi ◽  
Stefanus Adi Kristiawan
Keyword(s):  
Local Buckling ◽  
Steel Structure ◽  
Building Construction ◽  
Light Weight ◽  
Load Carrying Capacity ◽  
The Finite Element Method ◽  
Channel Section ◽  
Load Carrying ◽  
Steel Column ◽  
Cold Formed Steel

<p><em>Cold-formed steel structure is the most chosen alternative in the world of building construction nowadays, because of its light weight,  fast and easy to construct. This study conducted local buckling study on cold-formed steel channel section to study the critical load of cold-formed steel column when the load centric and eccentric and to indentify the failure mode through numerical and experimental study. The local buckling of cold-formed steel channel section was analyzed analytically using SNI 7971: 2013, numerically using Abaqus and Experimental at centric (COG) and eccentric (ECC) loading. The centric load calculated analytically with the formula SNI 7971: 2013 is 12.37% otherwise eccentic load 31.52% greater than the numerical analysis of the Finite Element Method (FEM) which is verified by the Experimental test. In the case of the channel section eccentric loading, the load carrying capacity decreased by 21% compared to centric loading.</em></p>

ANALISIS BEBAN GEMPA TERHADAP KEKUATAN STRUKTUR BANGUNAN MULTI DEGRRE OF FREEDOME

2015 ◽  
Vol 1 (1) ◽  
pp. 17
Author(s):  
Almufid Almufid
Keyword(s):  
Spectrum Analysis ◽  
Response Spectrum ◽  
Lateral Force ◽  
Response Strength ◽  
Lateral Loads ◽  
Base Shear ◽  
Response Spectrum Analysis ◽  
Rolling Moment ◽  
Loads Analysis ◽  
Almost All

Structural analysis is planned phases of a building, especially the high buildings. In the analysis of the structure required to facilitate the modeling calculations reflect actual conditions in the field, both in structure and in the loaded . Because almost all parts of Indonesia, including the earthquake-prone areas is a challenge for civil engineering planning in order to design earthquakeresistant buildings. Indonesia has many experienced tremendous earthquake  Writing this proposal is intended to be able to know the strength and structure of the response Strength multi degree of freedome, on soft ground, located in Tangerang when worn earthquake lateral loads, analysis is done with the help of the SAP program in 2000 ver.15, to get the style - the style such as: the base shear force, lateral force level, rolling moment and lateral deviation. Dynamic analysis was conducted using the response spectrum analysis, mass modeling performed with a lump mass models, the sum of the response variance is reviewed with some combinations, such as: CQC, SRSs and  ABSSUM. Keywords: Building Multi Degrre of Freedome, response spectrum analysis, dynamic loads, with the use of the method;   CQC,    SRSS, ABSSUM

A Study on Mass Irregularity Limits of RC Structures for Various Seismic Zones of India

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mahammad Fayeemuddin ◽  
A. Vimala
Keyword(s):  
Aspect Ratio ◽  
Response Spectrum ◽  
Lateral Loads ◽  
Base Shear ◽  
Response Spectrum Analysis ◽  
Rc Structures ◽  
Seismic Zones ◽  
Regular Structures ◽  
Irregular Structures ◽  
Standard Code

The performance of any structure under lateral loads depends on its structural configuration. Most of the codes worldwide mentioned the provisions for the lateral load analysis for regular structures. Structures may be irregular in practice due to uneven distributions in mass, stiffness and strength. In India, most common type of multi-storied apartments constructed varies from 5 to 15 storeys and many apartments are constructed with penthouse which creates mass irregularity in the structures. The present study investigates the performance of mass irregular structures which are created by providing penthouse and also modeled as a stepped setback structure. Total four structures, 5, 7, 11 and 16 storied with an aspect ratio (height to width of the structure) of 0.64, 0.88, 1.36 and 1.96 are considered. For each structure response spectrum analysis is carried and the response parameters like storey displacements, storey drift and base shear variation in 4 seismic zones of India is studied. The main focus of the investigation is to understand the acceptance of mass irregularity with respect to the aspect ratio of the structure. The acceptance limit of the mass irregularity is also investigated as per 4 seismic zones of India. The results are compared with Indian standard code limits and concluded the acceptance limit as per seismic zones of India.

scholarly journals Analysis & Designing of Multistorey Building with Steel Plate Shear Wall

2021 ◽  
Vol 9 (8) ◽  
pp. 2111-2122
Author(s):  
Md. Shahid Iqbal
Keyword(s):  
Spectrum Analysis ◽  
Steel Plate ◽  
Response Spectrum ◽  
Shear Wall ◽  
High Energy ◽  
Lateral Loads ◽  
Structural System ◽  
Response Spectrum Analysis ◽  
Steel Plate Shear Wall ◽  
High Rise

Abstract: Structural design and analysis produces the capability of resisting all the applied loads without failure during its intended life. Lateral loads mainly due to earthquake govern the design of high-rise buildings. The interior structural system or exterior structural system provides the resistance to lateral loads in the structure. The present paper describes the analysis and design of high-rise buildings with Steel Plate Shear Wall (SPSW) for (G+20) stories. The properties of Steel plate shear wall system include the stiffness for control of structural displacement, ductile failure mechanism and high-energy absorption. The design and analysis of the composite building with steel plate shear wall is carried out using software ETABS. The present study is to carry out the response spectrum analysis of a high-rise composite building by optimizing the thickness of steel plate shear wall and to compare the results of displacement, story drift, overturning moment and story shear. The models are analyzed by Response Spectrum analysis as per IS 1893:2002. All structural members are designed as per IS 456:2002 & IS 800:2007 considering all load combinations. Keywords: Seismic; Composite; Shear Wall; Earthquake; Reinforced concrete.

scholarly journals Comparative Study of Tube in Tube Flat Slab with Tube in Tube Waffle Slab, Structures Under the Sesmic Loads

2021 ◽  
Vol 9 (9) ◽  
pp. 2113-2121
Author(s):  
Syed Zubair Uddin
Keyword(s):  
Response Spectrum ◽  
Lateral Loads ◽  
Response Spectrum Analysis ◽  
Flat Slab ◽  
High Rise ◽  
Tall Structures ◽  
Standard Code ◽  
Seismic Force ◽  
Waffle Slab ◽  
Code Book

Abstract: The tube in tube structure is one of the type that is been broadly used as structural system for tall structures. Considering the lateral loads due to the seismic force it gives more stiffness and gives more strength to the high-rise structures. Lateral loads are shared between the inner and outer tubes our aim is to make the structure stiff by its connectivity and comparing them by providing drops to the waffle. By adding tube in tube to the flat slab and waffle slab, concept is they both does not have the beams such that to know the comparison of both the models. This both models have been designed using e-tabs software and the dimensions, limitations are been taken from the provision Indian standard code book. Keywords: High-rise building, tube in tube, Response spectrum analysis.

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