scholarly journals STUDI PERHITUNGAN KEKAKUAN PORTAL DINDING BATA PADA BANGUNAN BERTINGKAT DARI BEBERAPA NEGARA DENGAN PUSHOVER

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Sri Frapanti
Keyword(s):  
Compressive Strength ◽  
Structural Design ◽  
Analytical Procedure ◽  
Pushover Analysis ◽  
Elastic Stiffness ◽  
Lateral Stiffness ◽  
Building Structure ◽  
Earthquake Loads ◽  
High Rise ◽  
Collapse Behavior

ABSTRAKPenerapan teknologi dan ilmu pengetahuan dalam bidang pembangunan konstruksi teknik sipil mengalami perkembangan yang pesat dengan berkembangnya zaman sehingga menuntut kita untuk lebih kreatif terutama dalam hal perancangan struktur. Di Indonesia, tantangan yang dihadapi dalam kontruksi gedung bertingkat adalah adanya resiko akibat gempa. Salah satu metode untuk menganalisis beban gempa adalah analisis pushover. Analisis pushover merupakan prosedur analisis untuk mengetahui perilaku keruntuhan suatu bangunan terhadap gempa. Penelitian dilakukan untuk mengetahui seberapa besar pengaruh kekakuan dan kekuatan dinding dengan melakukan eksperimen kuat tekan dari beberapa tipe batu bata yang diambil  benda uji batu bata dari Lubuk Pakam dan dibandingkan dengan beberapa negara. Stuktur bangunan dimodelkan sebagai portal 2 dimensi yang terdiri dari 2 variasi  model dengan 1 bentang dan 3 bentang yaitu Portal terbuka, Portal  berdinding. dengan menggunakan analisa Pushover dan bantuan Program ETABS. Hasil analisis dalam penelitian ini menunjukkan bahwa kontribusi dinding pengisi yang terbuat dari dinding bata mempengaruhi kekakuan lateral struktur bangunan.  Kata Kunci : Portal Terbuka, Portal  Berdinding, Tipe Batu Bata, Analisis Pushover, Kekakuan Elastis Dan Pasca Elastis   ABSTRACT Developed rapidly with the development of the era that requires us to be more creative especially in terms of structural design. In Indonesia, the challenge faced in the construction of high-rise buildings is the risk due to the earthquake. One method to analyze earthquake loads is pushover analysis. Pushover analysis is an analytical procedure to determine the collapse behavior of a building against earthquake. The research was conducted to find out how big the effect of stiffness and strength of the wall by doing a compressive strength experiment of some brick type taken by brick test object from Lubuk Pakam and compared with some countries. The structure of the building is modeled as a 2-dimensional portal consisting of 2 variations of the model with 1 span and 3 spans of open portal, walled portal. using Pushover analysis and ETABS Program assistance. The results of the analysis in this study indicate that the contribution of wall filler made of brick walls affect the lateral stiffness of the building structure. Keywords: Open Portal, Walled Portal, Brick Type, Pushover Analysis, Elastic Stiffness And Post Elastic.

Time-History Analysis of the High-Rise Building Structure Based on ANSYS

2011 ◽  
Vol 71-78 ◽  
pp. 2836-2839
Author(s):  
Hui Xia Xiong ◽  
Chang Yong Wang
Keyword(s):  
Structural Design ◽  
Time History ◽  
Time History Analysis ◽  
Building Structure ◽  
Finite Element Program ◽  
High Rise ◽  
High Rise Building ◽  
History Analysis ◽  
Earthquake Load ◽  
Element Program

The dynamic property of a high-rise building structure and time-history analysis under earthquake were analyzed by using the finite element program ANSYS. A modal analysis of the tower was conducted and the first 20 frequencies and modal shapes were obtained. The displacements and inner force under the earthquake were calculated. The result showed that the structural stiffness was enough to sustain earthquake load; and the stiffness distributed equally. These results can provide reliable basis for structural design.

scholarly journals STRUCTURE OF EARTHQUAKE RESISTANT CONCRETE BUILDING WITH DUAL SYSTEM USING SNI 1726: 2019

Neutron ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 1-9
Author(s):  
Novi Gita Apriliani ◽  
Tony Hartono Bagio
Keyword(s):  
Structural Design ◽  
Dual System ◽  
Main Beam ◽  
Building Structures ◽  
Building Structure ◽  
Structural Concrete ◽  
Earthquake Loads ◽  
Earthquake Resistant ◽  
Concrete Building ◽  
Earthquake Resilience

The higher a building, the greater the burden due to lateral forces. In the planning of the building structure of Apartment 88 Avenue Surabaya, a Dual system is used. This building planning is based on the Structural Concrete Requirements for Buildings (SNI 2847: 2019). And for earthquakes based on Earthquake Resilience Planning Procedures for Building and Non- Building Structures (SNI 1726: 2019 ). In the analysis of earthquake loads using dynamic analysis of the Response Specific Trump. The structure is planned to use reinforced concrete construction. The planning method includes the primary structure, namely the dimensioning and reinforcement of the main beam, and the column. And the secondary structure which consists of dimensioning and reinforcing plates, joists. From the results obtained structural design dimensional beam 35/70 cm ( 5D22; 3D22 ), the joist 30/55 cm ( 2D16; 2D16 ), the floor slab 14 cm thick ( D10-275 )

Improvements on Structural Static Pushover Analysis Method in High-Rise Building Structure

2014 ◽  
Vol 989-994 ◽  
pp. 3075-3078
Author(s):  
Miao Yu ◽  
Zhi Hong Dai ◽  
Gui Juan Hu
Keyword(s):  
Nonlinear Problem ◽  
Dynamic Problem ◽  
Pushover Analysis ◽  
Building Structure ◽  
Analysis Method ◽  
Analysis Model ◽  
Capacity Spectrum Method ◽  
High Rise ◽  
Capacity Spectrum ◽  
Static Pushover Analysis

In this paper, a new analysis model to assess the structure seismic capability is established, using improved capacity spectrum method. The model can solve the problem of many unknown and big computation workload in the process of conventional Pushover analysis. Conventional Pushover is very complex when use in the analysis of structure dynamic problem and nonlinear problem, the new model can solve these problem.

scholarly journals Study of the elastic stiffness factor of steel structures with different lateral load resisting systems

2020 ◽  
Vol 1 (2) ◽  
pp. 6-11
Author(s):  
Osamah Sarhan ◽  
Mahdy Raslan
Keyword(s):  
Pushover Analysis ◽  
Steel Structure ◽  
Steel Structures ◽  
Elastic Stiffness ◽  
Lateral Stiffness ◽  
Span Length ◽  
Lateral Loads ◽  
K Value ◽  
Different Types ◽  
Bracing System

Steel structures, like other types of structures, are exposed to different types of loads, including lateral loads such as earthquake and wind. To resist such loading, lateral stiffness has a significant role. In this paper, the elastic stiffness factor (K) for different models of steel structure with various bracing systems and different parameters are compared. The comparison has been performed by analysing and studying the formation of plastic hinges applying the pushover analysis. The results illustrate that the increase in the number of stories reduces the K value, while the increase of span length increases it. Besides, the usage of the bracing system significantly increases the K value.

scholarly journals Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 2023
Author(s):  
Ruixin Li ◽  
Yiwan Zhao ◽  
Gaochong Lv ◽  
Weilin Li ◽  
Jiayin Zhu ◽  
...  
Keyword(s):  
Wind Speed ◽  
Structural Design ◽  
Theoretical Basis ◽  
Thermal Process ◽  
Measured Data ◽  
Passive Heating ◽  
High Rise ◽  
And Performance ◽  
Wall Components ◽  
Near Wall

Near-wall microenvironment of a building refers to parameters such as wind speed, temperature, relative humidity, solar radiation near the building’s façade, etc. The distribution of these parameters on the building façade shows a certain variation based on changes in height. As a technology of passive heating and ventilation, the effectiveness of this application on heat collection wall is significantly affected by the near-wall microclimate, which is manifested by the differences, and rules of the thermal process of the components present at different elevations. To explore the feasibility and specificity of this application of heat collection wall in high-rise buildings, this study uses three typical high-rise buildings from Zhengzhou, China, as research buildings. Periodic measurements of the near-wall microclimate during winter and summer were carried out, and the changing rules of vertical and horizontal microclimate were discussed in detail. Later, by combining these measured data with numerical method, thermal process and performance of heat collection wall based on increasing altitude were quantitatively analyzed through numerical calculations, and the optimum scheme for heat collection wall components was summarized to provide a theoretical basis for the structural design of heat-collecting wall in high-rise buildings.

scholarly journals Seismic performance of a high-rise residential building model in Purwokerto, Indonesia

2018 ◽  
Vol 192 ◽  
pp. 02002 ◽  
Author(s):  
Yanuar Haryanto ◽  
Buntara Sthenly Gan ◽  
Nanang Gunawan Wariyatno ◽  
Eva Wahyu Indriyati
Keyword(s):  
Dynamic Response ◽  
Static Analysis ◽  
Pushover Analysis ◽  
Residential Building ◽  
Response Analysis ◽  
Dynamic Response Analysis ◽  
Building Model ◽  
High Rise ◽  
Drift Ratio ◽  
Linear Static Analysis

We evaluated the performance of a high-rise residential building model in Purwokerto, Indonesia due to the seismic load. The evaluation was performed based on seismic loads given in the 2002 and 2012 Indonesian National Standard (SNI) using linear static analysis, dynamic response analysis and pushover analysis. Based on the linear static analysis, the drift ratio decreased by an average of 34.42 and 32.61% for the X and Y directions respectively. Meanwhile, based on the dynamic response analysis, the drift ratio also decreased by an average of 30.74 and 27.33% for the X and Y directions respectively. In addition, the pushover analysis indicates that the performance of this high-rise residential building model is still at Immediate Occupancy (IO) level. The post-earthquake damage state in which the building remains safe to occupy, essentially retaining the pre-earthquake design strength and stiffness of the structure. The risk of life-threatening injury as a result of structural damage is very low. Although some minor structural repairs may be appropriate, these would generally not be required prior to re-occupancy.

Automation of seismic design of high-rise structure with braced steel frame

2021 ◽  
Author(s):  
Xin Zhao ◽  
Gang Wang ◽  
Jinlun Cai ◽  
Junchen Guo
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Structural Design ◽  
Structure Design ◽  
Steel Frame ◽  
Design Methods ◽  
Automatic Design ◽  
Component Level ◽  
Design Algorithm ◽  
High Rise

<p>With the continuous development and progress of society, the structure of high-rise buildings has been paid more and more attention by the engineering community. However, the existing high- rise structure design methods often have a lot of redundancy and have a lot of room for optimization. Most of the existing seismic design methods of high-rise structures are based on engineering experience and manual iterative methods, so that the efficiency of design can not meet the needs of the society. if the method of design automation is adopted, the workload of designers can be greatly reduced and the efficiency of structural design can be improved. Based on the digital modeling theory, this paper proposes a MAD automatic design algorithm, in which the designer provides the initial design of the structure, and the algorithm carries out the modeling, analysis, optimization and design of each stage of the structure, and finally obtains the optimal structure. The structural design module of this algorithm starts from the component level, when the component constraint design meets the limit requirements of the specification, it enters and completes the component constraint design and the global constraint design of the structure in turn. In this paper, taking a ten-story braced steel frame high-rise structure as an example, the optimal design is carried out, and its seismic performance is analyzed. the results show that the MAD automatic design algorithm can distribute the materials to each part reasonably, which can significantly improve the seismic performance of the structure and realize the effective seismic design.</p>

scholarly journals Comparative Evaluation of Structural Systems for Tapered Tall Buildings

Buildings ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 108
Author(s):  
Kyoung Moon
Keyword(s):  
Structural Design ◽  
Comparative Evaluation ◽  
Building Materials ◽  
Tall Buildings ◽  
Structural Systems ◽  
Lateral Stiffness ◽  
Design Studies ◽  
Structural Efficiency ◽  
Aspect Ratios ◽  
Enormous Amount

Structural efficiency of tapered tall buildings has been well recognized, and many tall buildings of tapered forms have been built throughout the world. Tall buildings are built with an enormous amount of building materials. As one of the most efficient structural forms for tall buildings, the contribution of tapered forms to saving structural materials coming from our limited natural resources could be significant. Structural design of tall buildings is generally governed by lateral stiffness rather than strength. This paper systematically studies the structural efficiency of tapered tall buildings in terms of lateral stiffness. Tall buildings of various heights and angles of taper are designed with different structural systems prevalently used for today’s tall buildings, such as diagrids, braced tubes, and core-outrigger systems. The heights of the studied buildings range from 60 to 100 stories, and the corresponding height-to-width aspect ratios in their non-tapered prismatic forms range from 6.5 to 10.8. The angles of taper studied are 1, 2, and 3 degrees. Gross floor area of each building of the same story height is maintained to be the same regardless of the different angles of taper. Based on design studies, comparative evaluation of the various structural systems for tapered tall buildings is presented.

scholarly journals INFLUENCE OF STIFFNESS RELATED TO THE C40 STRENGTH CLASS OF THE HARDWOOD GROUP ESTABLISHED BY THE BRAZILIAN STANDARD IN THE DESIGN OF TIMBER STRUCTURES

Wood Research ◽  
2021 ◽  
Vol 66 (4) ◽  
pp. 582-594
Author(s):  
FRANCISCO ANTONIO ROCCO LAHR ◽  
VINICIUS BORGES DE MOURA AQUINO ◽  
FELIPE NASCIMENTO ARROYO ◽  
HERISSON FERREIRA DOS SANTOS ◽  
SERGIO AUGUSTO MELLO SILVA ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Confidence Interval ◽  
Strength Characteristic ◽  
Structural Design ◽  
Strength Class ◽  
Reference Value ◽  
Timber Structures ◽  
Average Confidence ◽  
The One ◽  
Brazilian Standard

The Brazilian standard ABNT 7190 (1997) establishes the strength classes C20, C30, C40 and C60 for the proper framework of the different wood types in the group of hardwoods. Associated with the strength class, which is based on the compressive strength characteristic value parallel to the fibers (fc0,k), the standard stipulates the respective values representing the stiffness (Ec0), with 19500 MPa being the reference value for the class C40, essential variables in structural design. For being the C40 class is the one with the greatest amplitude (20 MPa), it is possible that the value 19500 MPa is not the best representation of stiffness. This work aimed to verify the representativeness the stiffness value established by the Brazilian standard for C40 wood. The result obtained from the average confidence interval indicates the value of 14110 MPa as being the most representative, which may imply structures that are supposedly more rigid than they really are.

scholarly journals Dynamic aspects of the code for the design of earthquake resistant buildings

1976 ◽  
Vol 9 (1) ◽  
pp. 63-67
Author(s):  
R. I. Skinner
Keyword(s):  
Structural Design ◽  
Dynamic Behaviour ◽  
Effective Utilization ◽  
Earthquake Loads ◽  
Code Of Practice ◽  
Earthquake Resistant

A brief review is given of the most important aspects of the dynamic behaviour of buildings, during elastic and inelastic deformations under earthquake loads, which must be considered for the effective utilization of the NZS 4203 "Code of Practice for General Structural Design and Design Loadings".

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