Analysis of Column and Beam Minimum Reinforcement Requirements on the Building Structure of the Faculty of Psychology, University of Semarang (original) (raw)
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International Journal of Civil Engineering and Technology (IJCIET) , 2023
The increase in building construction in South Kalimantan in recent years raises the need for planning and structural design that is safe and resistant to all working loads including earthquake loads. Therefore, it is important to evaluate the need for reinforcement beams in buildings based on soil conditions and earthquake potential in cities or districts in South Kalimantan. Structural analysis was performed using STAADPRO V8i Software to obtain maximum inner forces and repeatability designs on the beams. The results of this study show that the earthquake spectrum response graph of the plan for all areas of South Kalimantan has normal behavior, that is, the softer the ground conditions, the greater the base earthquake force. Balangan Regency with Soft Soil (SE) conditions has the largest earthquake force of 244.435 kN and is included in SDC D with the permitted structural system is SMRF, and has a bending reinforcement area on the highest beam pedestal of 942.478 mm 2 (3D20), and bending reinforcement
The Impact of Bracing Type on Seismic Response of the Structure on Soft Soil
Civil Engineering and Architecture, 2023
Building in civil engineering usually involves a lot of expertise and knowledge, especially when working with soft soil, which is infamous for being cohesive due to its low shear strength and consequently unstable under its geotechnical conditions. This is why extra care must be taken while researching how a building constructed on soft ground will behave during an earthquake. In these situations, the bracing system, which is well-known for its beneficial effects for resistance against seismic loads, must be thoroughly investigated and its selection must be reasonable and wise. In this perspective, we studied several models by changing the two most used types of bracing (columns and shear walls) while modifying the height of the buildings (3-6-9 and 12-story) using Etabs software. We then optimized the buildings in order to choose the optimal option for each case. Global displacements, inter-story displacements and structural mass were checked and compared. Following model validation and outcome analysis, we came to the conclusion that shear wall bracing would be advantageous for buildings taller than eight stories; otherwise, column bracing would be the better option. The outcomes of this study can be used to strengthen regulations, and as a guide for designers.
IJCIRAS, 2021
Big earthquakes with the intensity of earth-quaking from VII degrees to IX degrees were forecasted to be able to occur in Viet Nam. Therefore, studying to calculate the impacts of earthquakes on building structures in Viet Nam is very necessary. This paper studies the influence of different types of soil on the structural system of high-rise buildings when the building is subjected to earthquakes. After analyzing the model in Etabs software, the authors found that different types of ground for displacement, internal force difference up to 167%. At the same time, the authors also proposed a procedure to calculate the earthquake load-bearing structures using the response spectrum of many types of copper vibrations. It helps design engineers to easily apply structural calculations. To achieve the stated objective of the study. The overall content of this study is organized into four parts. Part 1: Methodological content; Part 2: Research model of a high-rise building in earthquake impact analysis; Part 3: Simulate the impact of earthquakes on a high-rise building; Part 4: Proposes a vibration calculation procedure for high-rise buildings.
Comparison of Substructure's Seismic Stability with the Change in Underlying Soil Parameters
International Journal for Research in Applied Science and Engineering Technology IJRASET, 2020
There are different types of soil are found on the earth (i.e. Sand, Silt, Clay, Loamy). In Civil Engineering aspects, each type of soil have some trouble due to which the foundation may get failed or damaged. This study discussed the properties of various soils (Sand, Silt, Clay), effect of these soils on structures and covers the guidelines to construct the structure in these types of soils. The main objective of this study is to understand the effect of seismic forces on footing with the change in underlying soil. Also from various literature reviews, study shows the points which are helpful to overcome the damages in footing construction by showing different methods, loading combinations, seismic effect, footing stability, etc. This project is to analysis of RC Isolated footing on different types of soil for seismic forces and analyzed isolated footing manually and using STAAD FOUNDATION. The aim of this study is to analyze the changes in footing design with the changes in the properties of soils. The footing having some external loading (Seismic Loading) is analyzed and designed for various types of soil i.e. Sand, Silt and Clay. The changes in the pressures for various soil types are determined and studied.
building analysis due to seismic load in different seismic zones of Bangladesh, 2019
Bangladesh is an earthquake prone country as it lies along the border of the Eurasian and Indo-Australian plates, where earthquakes of comparatively uniform intensity are generated at regular intervals. This increase in earthquake activity is an indication of fresh tectonic activity or propagation of fractures from the adjacent seismic zones. In the light of these after various researches upcoming BNBC, 2015 has been divided into four seismic zones, namely zone-4, zone-3, zone-2, zone-1 being the most severed and at least respectively. The occurrence of earthquakes in an earthquake prone region cannot be prevented. So it is suggested to follow seismic code in order to reduce the loss of life. The present study is aimed at finding out the variation of costing for 80 feet and 150 feet heights Building in four seismic zones of Bangladesh. Framing systems of these two building are considered as dual system reinforced concrete. Earthquake loads are varied as per BNBC-2015.Constant wind load is considered for these building analyses. Analyses of these building are carried out by using ETABS - 2016.Structural drawings of these buildings has been prepared based on analysis result and seismic detailing of various structural element as per BNBC - 2015. Comparative study has been carried on required materials cost for major structural element of these building (beams, columns and shear walls) among four seismic zones. Average required reinforcement of structural elements (beams, columns and shears walls) been calculated separately for four seismic zones of Bangladesh. It is found that average required reinforcements per square feet of 150 feet height building are 1.87 kg, 2.09 kg, 2.29 kg and 2.97 kg in zone -1, zone -2, zone -3 and zone - 4, respectively. Also 1.625 kg, 1.925 kg, 2.247 kg and 2.643 kg reinforcements are required for every unit area of 80 height building. Average reinforcement’s cost in taka for each square feet area of this structure (80feet height) are 97 taka, 116 taka,135 taka,159 taka, respectively in Zone -1, Zone -2, Zone -3, Zone - 4, respectively. One the other hand Average reinforcement’s cost in taka for each square feet area of this structure (150 feet height) are 86 taka, 104 taka,123 taka,146 taka, respectively in Zone -1, Zone -2, Zone -3, Zone - 4, respectively.
Effect of Soil Type on Lateral Displacement of Reinforced Concrete Building
Applied Research on Civil Engineering and Environment (ARCEE)
As has happened in various cases of earthquakes, the impact caused by each earthquake event varies, because the earthquake shaking that occurs on the ground is not only influenced by the distance and strength of the earthquake, but also by local soil conditions which are related to the amplification phenomenon. earthquake waves are influenced by the type and thickness of the soil/sediment layer above the bedrock. Reinforced concrete storey buildings are designed to withstand both vertical and horizontal loads. The taller the building, the greater the lateral load that will be received by the building structure. In the design of earthquake-resistant structures, the inelastic behavior of the structure is highly expected for the occurrence of earthquake energy dispersion during both moderate and strong earthquakes. In earthquake-prone countries such as Indonesia, it is required to comply with applicable national standards and the structure can still function and be safe from earthquake...
IJERT-Earthquake Response Of Structures Under Different Soil Conditions B.Neelima
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/earthquake-response-of-structures-under-different-soil-conditions https://www.ijert.org/research/earthquake-response-of-structures-under-different-soil-conditions-IJERTV1IS7348.pdf Earthquake is a spasm of ground shaking caused by sudden release of energy in the earth"s lithosphere. It is an endogenous natural hazard which occurs sudden and destruction takes place within a short period of time. History and geological evidences show that the rate of occurrence of earthquakes has become a frequently recurring phenomenon all over the world. Bitter experiences left by past earthquakes, especially in urban regions; reveal the importance of terrain evaluation and influence of soil-structure interaction on response of structures during earthquakes. In the present study, a part of Vijayawada city, located on eastern side of the state Andhra Pradesh, India, covered by many high rise buildings supported on different type of soils, is chosen as study area. A conventional three storied building when rests on different soils is chosen for the study. Earthquake analysis is carried out using mode superposition method as given in IS 1893-2002 [5] and the response parameters like; frequencies, time periods, base shears and displacements are obtained when the structure rests on different soils or rocks. The influence of soil-structure interaction is compared with the results obtained when the structure is assumed to be fixed at the base. In the present study, it is observed that the fundamental natural frequencies increase and base shears decrease with the increase of soil stiffness and this change is found more in soft soils. In general, it is seen that the displacements increase with the decrease of soil stiffness, which is mainly attributed due to rocking effect of the soil. Hence soil-structure interaction cannot be ignored while designing important structures like nuclear power plants, liquid storage structures, dams etc., against expected earthquake forces.
IJERT-Seismic Analysis in Tall Buildings for Hard Soil Type and Different Seismic Zones
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/seismic-analysis-in-tall-buildings-for-hard-soil-type-and-different-seismic-zones https://www.ijert.org/research/seismic-analysis-in-tall-buildings-for-hard-soil-type-and-different-seismic-zones-IJERTV3IS100779.pdf In this work, it is proposed to carry out an analytical study, on multistory building of 35 stories, was carried out accounting for different seismic zones and hard soil type. The suitability and efficiency of different lateral bracing systems that are commonly used and also that of concrete infills were investigated. The different bracing systems viz., X-brace, V-brace, inverted V or chevron brace and infills are introduced in these analytical models. These building models are analyzed, using SAP 2000 software, to the action of lateral forces employing linear static and linear dynamic approaches as per IS 1893 (Part I): 2002. Keywords-Bracing systems, maximum displacements, different seismic zones and soil type and RC frame.