RCC Building Research Articles

Transient Effect of Random Loads on Reinforced Cement Concrete Building on RCC Building with Staad Pro. V8i

Abstract. Dynamic load is one which changes with time quickly in comparison to the structure's natural frequency. If it varies quickly, the activity must be determined with a dynamic analysis. Explosive loads and impact loads are transients, or loads that are applied dynamically as one-half cycle of high amplitude. This transient load is applied only for a specific and typically short period of time in the case of blast loads typically less than one-tenth of a second. The response of the engineering structural building due to the reason of periodic load RCC building structure has been severely damaged, collapse and develop cracks. Bomb blast is the best example for impulsive load. To determine the response of a G+3 RCC building model in STAAD Pro subjected to triangular, rectangular and sinusoidal impulsive force for 0.5 seconds with maximum magnitude of 100kN. Effect of such loads on front, roof and side portion of the building studied. Observe that the critical deformations obtained on the front and roof portion of building. Effect of deformation along height of building was parabolic in nature with maximum deflection at top floor of building. It was also noted i.e sufficient reinforcement should be provided in beam, columns and slabs to impart ductility to the building against impulse loads.There is more demand for construction of high buildings due to increasing urbanization and population.

Accessing the Compliance Standards of Selected Projects of Thabang Rural Municipality, Nepal

Purpose: A project is assumed to be sold before construction based on its accepted quality standards conformed through specification. Standards and specifications are used as benchmarks, and compliance checks are used to ensure that they are met. Accessing standard compliance based on chosen case projects is an attempt to learn about the status of Thabang Rural Municipality construction projects. Design/Methodology/Approach: The compliance status of RCC and masonry building and the motorable road was checked by field observation with help of a checklist and their result are shown through bar graphs. For water supply projects water demand compliance was checked by field observation and water tariff calculation was done based on the possible yearly expenses of water supply management along with effective analysis of Detail Project Reports, Design, and Drawings. Findings/Result: Compliance status 20 RCC and 12 masonry building shows major non-compliance in the spacing of stirrups, lap length in column and beam, chair bars of the slab, provision of the crossing of reinforcement in the staircase. In masonry building, major non-compliance was observed in band/through stone, vertical bars at corners, and corner stretching by dowel bars. Roadway width was checked in two selected road projects and Tutu Praja Bhitrivan motorable road found non-compliance in the major portion of the road. Water demand compliance, water tariff calculations were done in Yebang Chabang Water Supply project. Originality/Value: This study helps policymakers and local level government to assure construction with compliance of standards. It makes it easier for policymakers to incorporate the development needs without compromising quality through regulatory provision. Paper Type: Action and Policy Research

Seismic and Wind Analysis of RCC Building with Different Shape of Shear Wall and Without Shear Wall

Abstract: In India, about 50-60% of the total area is vulnerable to the seismic activity. Earthquakes are the vibrations or the motion of the ground due to release of energy. The vibrations or ground motion are the important factors to analyze and design, the earthquake resistant structure. So, to reduce the impact of earthquake different efforts has been done in this field. Basically, earthquake exerts lateral as well as vertical forces so to dissipate those forces and the vibration in system earthquake resistant structure has been design. The design of earthquake resistant structures depends on providing stiffness, strength and inelastic deformation which withstand the earthquake forces. As the height of the structure increases the lateral loads acted on the structure increases and decrease in the stiffness, so to counteract those shear walls and different damping devices has been used. Keywords: IS Code 1892-Part-1:2016; U - Section, Z- Section, H-Section, T-Section

Seismic and Wind Analysis of RCC Building with Different Shape of Shear Wall and Without Shear Wall

Abstract: ETABS Stand for Extended Three-Dimensional Analysis of Building systems. ETABS integrates every aspect of the engineering design process. In the present situations of construction industry, the buildings that are being constructed are gaining significance, in general those with the best possible outcomes which are referred to members like beams and columns in multi storeys R.C structures. This paper deals with the seismic analysis of regular B+G+26 story building with shear wall and G+B+10 Story building with different irregular shapes considering different shapes of shear wall at different locations has been carried out. Which can be done in ETABS taking all the considerations regarding codes and other factors into account. All the buildings were analyzed with the same method as stated in IS 1893-Part-1:2016. The effect of shear walls on lateral capacity of the building are examined because the seismic analysis of a frame depends upon the location and symmetry of shear wall. Present study shows the shear wall improves not only the lateral stiffness and strength capacity but also the displacement capacity of structure. Comparison of results been done of different models by comparing the parameters such as story drift, story displacement, story stiffness and base reaction. Therefore, as far as possible irregularities in a building must be avoided. But, if irregularities have to be introduced for any reason, they must be designed properly following the conditions of IS 13920:1993. The complex shaped buildings are now days getting popular, but they carry a risk of sustaining damages during earthquakes. Keywords ETABS Software; IS Code 1892-Part-1:2016; IS Code 13920:1993; IS Code 875-Part-1 and Part-2

Literature Study on Seismic Analysis of Multi-Storey RC Frame with Different Types of Foundation

In the process of building earthquake-resistant structures and/or retrofitting vulnerable existing structures, seismic analysis is a method for estimating structural reaction. The problem is tough in principle. Because the structural response to big earthquakes is dynamic, nonlinear, and random. In structural engineering, all three features are exceptional, as most problems are (or can be effectively approximated as) static, linear, and predictable. Many existing RCC buildings in seismic zones are inadequate to withstand earthquakes due to rapid urbanization and the development of a high number of multi-story buildings. And also since different foundation types are adopted based on different structural, soil requirement, it is important to analyze the response of structure with different foundation types.

EARTHQUAKE RESPONSE STUDY OF MULTI-STORIED RCC BUILDING WITH FVD ON SLOPING GROUND

Damping performs essential function in format of earthquake resistant structures, which lower the change of the shape when they are subjected to lateral loads or earthquake. In the existing study fluid viscous dampers (FVD) are used to consider the response of RCC buildings on sloping ground. The important challenge of a structure is to endure the lateral loads and switch them to the foundation and to control the story displacement. In order to make structure earthquake resistant, (FVD) have been used. The building is modeled in ETAB 2018 and modeled with different location of FVD. After the study results show building with fluid viscous dampers (FVD) at diagonal bracing shows better performance.

Stability analysis of high-rise building and optimization of bracing configuration

The present trend in construction industries is to build tall buildings due to available land scarcity and rise in population. As the height of the building increases, the sway of the building also increases and due to sway, the building stability will be affected. To reduce sway, one of the commonly used techniques is the provision of bracings. Triangulation is created by inserting diagonal structural members (bracing system) into the rectangular areas. Bending of columns and beams in the structure can be reduced by adopting these systems which in turn increases the stiffness of the system. Paper mainly explains the effect of different bracing configurations like X bracing, V bracing, diagonal bracing in multi storied RCC buildings. Various parameters like varying floor height and storey number are considered for detailed dynamic time history analysis. It was observed that there was a considerable variation in the displacement for the varying floor height. X bracing provides a better result in a range of 30% − 40% of reduction in structural deflection. Under similar conditions both V and diagonal bracings had slighter difference in percentage reduction and also diagonal bracing can be preferred in an economical point of view.

Seismic and Wind Analysis of RCC Building with Different Shape of Shear Wall and without Shear Wall

Seismic and Wind Analysis of RCC Building with Different Shape of Shear Wall and without Shear Wall

A Review on Multi-Storey RCC& Composite Building Under Seismic Effect using E-Tabs Software

The Steel-concrete composite constructions are commonly used in modern construction. Due to its several advantages over RCC and steel structures, composite structures consisting of steel and concrete are particularly popular. The structural members of RCC buildings are heavier and have larger cross-sections. Steel constructions have higher deflections and flexibility than concrete structures, helping resistance to earthquake loads. In composite structures, the appropriate qualities of RCC and steel structures are blended. The composite structures facilitate lower costs, quick construction, and fire protection, among other attributes. Present study covers comparison of high-rise (G+8) RCC and composite structures in seismic zone IV considering the provisions of IS: 1893 (Part1) -2002. The seismic behaviour of frames created using the suggested methodology is assessed using ETABS software's nonlinear time-history analysis and the results are compared using various parametric data, for structures in all sorts of building frames, maximum storey displacement, storey stiffness, storey drift, fundamental time periods, base shear, and weight are determined. The steel-concrete composite frames, along with RCC and steel constructions, are best suited for medium to high rise buildings, according to comparative research.

Seismic Response of Performance Base Designed Building : A Review

A review on Performance Based Plastic Design method (PBPD) for RCC building has been presented in this paper with detailed manner. The first is the study of Performance Based Plastic Design method relating with IS code method. And then secondly review includes the research gap that is to apply this method on Irregular Buildings and to observe the efficiency of Design and Cost analysis comparing to IS code recommendations. When a Structure is designed by IS Code (IS 456: 2000) recommendations, it satisfies the strength as well as serviceability standards. But when an earthquake hits the structure, it leads to collapse which leads to loss of life as well as property. A Recently developed PBPD method can be a promising & efficient seismic design approach as it counteract total collapse of structure. This method is becoming popular due to its total collapse prevention. The paper addressed the relevant examination of provisions as specified in the appropriate design standard and software-based finite element analysis conducted by various authors, as well as a review of the problem, in order to reach a meaningful conclusion for the study. Also, a suggestion for the scope of future development is to study the Design as well as Cost efficiency of Performance Based Plastic Design of Various Irregular RCC buildings which will be a new or important aspect of the study. Despite the fact that fewer papers have been published in this area than in others, this report covers a broad range of research efforts and progress into the New Performance based Plastic Design method & seismic behavior of irregular buildings, demonstrating the field’s growing interest.

Controlling Seismic Excitation in the RCC Building with a Tuned Mass Damper

The use of multiple tuned mass dampers (MTMDs) to monitor earthquake response of tall buildings is investigated. The MTMDs are located in three locations in the reinforced concrete (RC) structures. The time domain seismic analysis is performed on Etabs Software using imperial Earth movement used to analyze contemporary history. The performance of the MTMDs is compared to that of a TMD on the top floor, a TMD on the third and fifth floors, a TMD on each floor, and no TMD. The base shear vs time and displacement parameters were examined, and it was determined that the MTMDs on each floor are better for the building’s seismic response. Furthermore, it has been discovered that MTMDs are more powerful than STMDs.

Analytical Investigation of Composite Structure in Comparison of RCC Structure

High rise structures becoming very common everywhere due to scarcity of land and increasing population. Though we have RCC structure system as high-rise buildings, but in RCC buildings due to bulky size of the components of the structure self-weight will be more due to the heavy density of materials. By observing the difficulties and challenges in the field of high-rise structures engineers are using efficient structural system that is Steel Concrete Composite Structure. Composite structure consists composite deck slab, composite beam and composite column. Composite Structure complies of Concrete which is good in compression and structural steel which good in tension and composition of these material makes structure better in ductility which comparatively on higher side than RCC structure. Here G+7 high rise structure is considered for analysis by ETABS software. This paper involves Analysis of Commercial building by Equivalent static method on Composite structure and RCC structure with same plan of building and same design data. The structure is in earthquake zone III and wind speed 44m/s. Analytical comparisons of both Composite and RCC frame based on structural parameters are made with help of graphs and tables. By comparing the results, we found that Steel-Concrete Composite Structures are more desirable than RCC structures.

A Review on using Belt Truss at Different Locations on RCC Building

In past decades, shear walls and x bracing are one of the most appropriate and important structural component in multi-storied building. Therefore, it is very interesting to study the structural response and their systems in multi-storied structure during lateral load i.e earthquake loading. Shear walls and belt truss contribute the stiffness and strength during earthquakes which are often neglected during design of structure and construction. The scope of present paper is to study the effect of seismic loading on placement of belts truss in building at different alternative location. This study shows the effect of belts truss and bracing belts truss which significantly affect the vulnerability of structures. In order to test this hypothesis, RCC building was considered with and without belts truss at different location. The aim of the paper is to detail and conceptualize the varied configurations of belt truss structures system and to integrate current structures into longer structures by use of belt truss system at different location. Additionally, various advantage and disadvantage associated with outriggers and belt truss system also are discussed in this paper. A close of literature review within the field of Outrigger system is applied and therefore the summary on belts truss and gaps encountered within the study are listed during this paper. This paper introduces belt truss at different location. In which, using the belt truss structural within the RCC building so as to extend the performance of the building under the earthquake load and wind loads is studied. Concept of belt truss as Virtual outrigger is reviewed within the paper.

Seismic Analysis of Multi-storied RCC Building Involving Semiactive VF Damper and Base Isolators

Seismic Analysis of Multi-storied RCC Building Involving Semiactive VF Damper and Base Isolators

Comparative Study Seismic Analysis of RCC, Steel & Steel-Concrete Composite Frame: A Review

Abstract: This study examines how composite structures are gaining popularity in developing countries. For medium and high levels in RCC buildings are no longer economical due to increased weight, range limitations and low natural frequencies and dangerous formwork. Steel and concrete composite structures are becoming increasingly popular today and are safe throughout their useful lives. Round Steel and concrete structures are the best solution for modern buildings. In this article we will discuss the various results of building construction for RCC, metal and composite construction taking into account different studies. Keyword: RCC Structure, Steel Structure, Composite Structure, Joint Displacement, Base Shear

Study of Structural Irregularities in different Seismic Zones using Response Spectrum Analysis

Abstract: The Indian Standard code IS-1893: 2002 (Part-I) defines various types of structural irregularities. The code suggests a special approach of study for irregular structures. The earthquake effect leads to the damage the property and many people loss their life. So, we've to understand the structural performance under seismic load before construction. In this study varying plan irregularities which are often inevitable thanks to building requirements and architectural imperatives, and having a serious impact on building costs are investigated. The objective of the project is to carry out Response spectrum analysis of two RCC buildings is to be done in four different seismic zones of India (i.e., Zone-2, Zone-3, Zone-4, Zone-5). ETABS model of G+10 RCC with Varying Geometry plan is considered in this analysis. The analysis is done using Extended Three-Dimensional Analysis of Building System software. Various response parameters like lateral force, story drift, Displacement are often determined. The evaluation of response of structures subjected to lateral loading with the help of frequency and the magnitude of stress resultant, is also included in the scope of this paper. Keywords: Plan irregularity, Vertical geometric irregularities Response spectrum method, ETABS, Structural Irregularities, Lateral Loading, Non-Linear Analysis, Storey Drift, Storey Displacement.

Seismic Analysis of L-Shape Multi-Storey RCC Building with X-Bracing in Different Effective Location and Pattern

Abstract: In this day and age of urbanization, there is a strong need for a large-scale high-rise apartment building in every city but high-rise construction systems are extremely difficult to construct in any seismic region due to the intense and disruptive nature of seismic forces. Seismic forces have the highest risk of causing the most harm to high-rise buildings. To meet this need, the Civil Engineering industry is constantly developing new groundbreaking techniques. To solve this problem RCC or steel bracings are provided in high-rise buildings which help to the low down the effect of seismic and wind forces. The main objective of this paper is to locate an effective position and pattern of the RCC X-bracing system in the L- shape multi-storey building which is subjected to seismic forces. According to a previous reference paper, X-bracing produces better results than other bracing systems. Analysis the seven types of frame models are taken – (1) Normal L-shape building without bracing, (2) Xbracing are provided at the face of L-shape building, (3) X-bracing are provided alternative pattern at the face of L-shape building from bottom to top floor, (4) X- bracing are provided zig-zag pattern at the face of L-shape building, (5) X-bracing are provided at the corner of L-shape building, (6) X-bracing are provided alternative pattern at the corner of L-shape building from bottom to the top floor, (7) X-bracing are provided zig-zag pattern at the corner of L-shape building. Developed and evaluated by response spectrum analysis method (Linear dynamic analysis) as per IS 1893-2000 using STAAD PRO V8i. In the present work G+12 storey, the L-shape frame structure is analyzed by using X-bracing. It is analyzed and the results of the Following Parameters are taken - (1) Peak storey shear, (2) Base shear, (3) Nodal displacement, (4) Maximum bending moment, (5) Total quantity of steel in the whole structure, (6) Total volume of concrete in the whole structure are evaluated and compared. Keywords: RCC Bracing, Seismic Behavior, Seismic Analysis, Peak Storey Shear, Base shear, Nodal Displacements, Maximum Bending Moment, The Total Quantity of Steel, The Total Volume of Concrete

Comparison of Static and Dynamic Analysis of Multi-Storied Building

Vibration of ground is the main cause of earthquake damage to building structures. There are many factors responsible for the strength of earthquake shaking at a site including the earthquake's magnitude, the site's proximity to the fault, the local geology, and the soil type. The natural disasters have been fast recurring all over the world causing great concern and damage to man and their properties. Among these disasters Earthquake is an endogenous natural disaster, which occurs suddenly without any warning. The vast devastation of engineering systems and facilities during the past earthquakes has exposed serious deficiencies in the prevalent design and construction. Shear wall is one of the most commonly used lateral load resisting in high rise buildings. Shear wall can be used to simultaneously resist large horizontal load and support gravity load. In the study, one tall RCC building of 13 stories is assumed to be situated in seismic zone V is analysed using two methods (Static and Dynamic Analysis). The share walls are taken at different position of building. The comparison of the different shear wall models is studied in this work against the different parameters like time period, bending moment, shear force, storey drift, displacement

Seismic Analysis of RCC and Steel Building on Sloping Ground

It is necessary to design and analyse a structure to perform well under seismic loads and also endow with well strength, stability and ductility for seismic design. The seismic performance of high rise steel frame and RCC frame structure is analysed by equivalent static method. The advancement in building, Information, modelling has integrated design, detailing, and fabrication of steel which will result in high performance under earthquake loading. In present work various models were analysed with the help of Staad pro. And the results so obtained were plotted and compared.

Analysis of Multistoried RCC Building with Shear Wall and Outrigger using ETABS Software

During earthquakes, a large number of buildings are destroyed due to the cause of lateral forces and increased load capacity in the structural element, and this is caused by winds, earthquakes and uneven settlement of cargo. The least damage and well-being a healthy level of construction is a necessary requirement for tall buildings. To reduce the impact of damage on all high structures, it may consist of basic insulation techniques and sliding walls, and so on. Buildings are used to increase design performance and limit damage to landslide walls. On tall buildings to prevent earthquake loads, reinforced concrete walls are used as supporting elements. Reinforced concrete structures are mainly implemented in engineering practice in different situations and different applications. Many researchers turn to the effectiveness of sliding walls with boundary conditions based on different types of reinforcement alignment. This document consists of modeling different models for the shear wall housing and the hood system.