scholarly journals Optimization in the Selection of Structural Systems for the Design of Reinforced Concrete High-Rise Buildings in Resisting Seismic Forces

2012 ◽  
Vol 19 ◽  
pp. 269-275 ◽  
Author(s):  
Azzam Katkhoda ◽  
Rana knaa
Keyword(s):  
Reinforced Concrete ◽  
Structural Systems ◽  
High Rise ◽  
Seismic Forces ◽  
Selection Of

scholarly journals Backstay Effect of Diaphragm in Tall Building

2020 ◽  
Vol 9 (3) ◽  
pp. 1578-1587
Keyword(s):  
Seismic Analysis ◽  
Response Spectrum ◽  
Retaining Wall ◽  
Tall Building ◽  
Structural Systems ◽  
Base Shear ◽  
High Rise ◽  
Structural Engineer ◽  
Structural Responses ◽  
Seismic Forces

Seismic analysis of structural systems with floor diaphragms has been a requisite in the recent past. The duty of a structural engineer is to be prudent about the behavior of every structural system adopted. Amongst the structural systems that are adopted world over, diaphragm with rigid and semi-rigid floor plate are adopted widely in the analysis. This research focuses on the backstay effect i.e. podium structural interaction with the tower area and consideration of retaining wall as increment of lateral stiffness as specified in latest tall building code IS6700:2016 for low and high rise structures. In the current study models were prepared with low to high rise storeys with rigid and flexible diaphragms considering backstay diaphragm placing tower at center and corner. The models were subjected to seismic forces; response spectrum along with the combination of the gravity loads. The structural responses like natural periods, base shear, displacement and inter storey drift were also studied.

THE STRUCTURE ANALYSIS OF BUILDINGS IN TURKEY AND SELECTION OF THE STRUCTURE

2021 ◽  
Vol 0 (23) ◽  
pp. 0-0
Author(s):  
Esra BOSTANCIOĞLU
Keyword(s):  
Reinforced Concrete ◽  
Statistical Analysis ◽  
Structural Systems ◽  
Building Structures ◽  
Existing Buildings ◽  
Structural System ◽  
Building Stock ◽  
Existing Building ◽  
Framed Structures ◽  
Selection Of

Aim Building structures are assessed with several parameters such as cost, construction time, fire resistance, life cycle, maintenance and repair frequency, and environmental impacts. Building structures are reviewed as masonry, steel framed, wood framed, reinforced concrete framed, composite and prefabricated structures. This study aims to analyze the existing building stock of Turkey and assess the existing buildings in terms of their structural system decisions. Method: Following the comparative assessment of the types of structures based on literature review, assessment criteria for the selection of structural system are determined and a statistical analysis of the existing building stock in Turkey has been made in terms of the use of different structures. A questionnaire was prepared for the architects who decided the structural system in the design phase. Respondents evaluate the structural systems and selection criteria. Statistical analysis is made with the results of the survey. Findings: There is a clear preference for reinforced concrete framed structures in Turkey. A quantitative assessment of the structural systems in the existing buildings in Turkey by 2018 shows that 93.13% of the building stock has reinforced concrete framed. Looking at the individual years in the 2009 to 2018 period, the rate of preference of using reinforced concrete framed structures never went below 89% among all types of structures, but steel framed structure is the most preferred structural system at the end of the survey. Conclusion: It is thought-provoking that although different structures have different comparative advantages, structures other than reinforced concrete framed are preferred so little. The findings will contribute to making the right decision in building structure with the assessment of different structures in different aspects.

scholarly journals Seismic Evaluation of Mixed Steel and RC Columns in Hybrid High-Rise Buildings

2019 ◽  
Vol 65 (2) ◽  
pp. 3-17
Author(s):  
D.-P. N. Kontoni ◽  
A. A. Farghaly
Keyword(s):  
Reinforced Concrete ◽  
Reinforced Concrete Beams ◽  
Structural Systems ◽  
Base Shear ◽  
Seismic Evaluation ◽  
Earthquake Excitation ◽  
Rc Columns ◽  
Steel Columns ◽  
High Rise ◽  
Building Models

AbstractThe growth in high-rise building construction has increased the need for hybrid reinforced concrete and steel structural systems. Columns in buildings are the most important elements because of their seismic resistance. Reinforced concrete (RC) columns and steel columns were used herein to form hybrid structural systems combining their distinct advantages. Eleven 3D building models subjected to earthquake excitation with reinforced concrete beams and slabs of 12 floors in height and with different distributions of mixed columns were analyzed by the SAP2000 software in order to investigate the most suitable distributions of a combination of reinforced concrete and steel columns. Top displacements and accelerations, base normal forces, base shear forces, and base bending moments were computed to evaluate the selected hybrid structural systems. The findings are helpful in evaluating the efficiency of the examined hybrid high-rise buildings in resisting earthquakes.

Considering Sustainability in the Selection of Structural Systems

2002 ◽  
Vol 86 (18) ◽  
pp. 1-9
Author(s):  
Mike Buckley ◽  
Robert Halsall ◽  
Brennan Vollering ◽  
Doug Webber
Keyword(s):  
Structural Systems ◽  
Selection Of

scholarly journals Numerical Modelling of Reinforced Concrete Slender Walls Subjected to Coupled Axial Tension–Flexure

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Xiaowei Cheng ◽  
Haoyou Zhang
Keyword(s):  
Reinforced Concrete ◽  
Plastic Hinge ◽  
Element Model ◽  
Lateral Loading ◽  
Design Parameters ◽  
Seismic Behaviour ◽  
High Rise ◽  
Ultimate Deformation ◽  
Axial Tension ◽  
Plastic Hinge Length

AbstractUnder strong earthquakes, reinforced concrete (RC) walls in high-rise buildings, particularly in wall piers that form part of a coupled or core wall system, may experience coupled axial tension–flexure loading. In this study, a detailed finite element model was developed in VecTor2 to provide an effective tool for the further investigation of the seismic behaviour of RC walls subjected to axial tension and cyclic lateral loading. The model was verified using experimental data from recent RC wall tests under axial tension and cyclic lateral loading, and results showed that the model can accurately capture the overall response of RC walls. Additional analyses were conducted using the developed model to investigate the effect of key design parameters on the peak strength, ultimate deformation capacity and plastic hinge length of RC walls under axial tension and cyclic lateral loading. On the basis of the analysis results, useful information were provided when designing or assessing the seismic behaviour of RC slender walls under coupled axial tension–flexure loading.

Construction of Temporary Accommodation Camp and Selection of Optimal Type of Building

2015 ◽  
Vol 725-726 ◽  
pp. 105-110
Author(s):  
Aleksandr Birjukov ◽  
Sergey Bolotin
Keyword(s):  
Type Systems ◽  
Structural Systems ◽  
Basic Criterion ◽  
Economic Indexes ◽  
The Cost ◽  
Container Type ◽  
Selection Of ◽  
Optimal Type ◽  
Temporary Accommodation

Surveys performed nationwide show that mobile temporary accommodation camps are being manufactured by more than 200 specialized enterprises (without considering the minor manufacturers) acting under different ministries and agencies. According to the analysis performed, today 26 basic mobile structural systems consisting of 18 conveyor-type and 8 demountable-type systems are being used on a national basis. Today national manufacturers are producing more than 250 types of container-type buildings and facilities which differ in functionality, capacity, climatic category, price and other technical-and-economic indexes. Use of mobile accommodation complexes is characterized by certain advantages. Basic criterion for mobile accommodation camp construction consists in its timely commissioning. Basic predicted indexes affecting the cost of temporary accommodation camp could serve as an endorsement of the forwarded standpoint.

The Construction of the Later Poured Band and Quality Control

2014 ◽  
Vol 926-930 ◽  
pp. 661-664
Author(s):  
Min Chen
Keyword(s):  
Quality Control ◽  
Reinforced Concrete ◽  
Body Temperature ◽  
Construction Technique ◽  
High Rise ◽  
Concrete Body ◽  
Contraction Stress

Setting the late poured band is to solve different settlement between high-rise buildings and to settle the reinforced concrete body temperature--contraction stress. In addition, it effectively avoids the harmful cracks caused by the reinforced concrete body. So it is vital to set the late poured band and organize the correct construction. This paper aims at elaborating types of post pouring belt, construction preparation, construction technique, quality and so on.

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