Configuration of earthquake-resistant R/C structural systems: Structural behaviour

2014 ◽  
pp. 153-190
Keyword(s):  
Structural Systems ◽  
Structural Behaviour ◽  
Earthquake Resistant

Approach to Steel-Bamboo Composite Structure System

2013 ◽  
Vol 300-301 ◽  
pp. 1263-1266 ◽  
Author(s):  
Zhi Min Yan ◽  
Yong Fei Du ◽  
Jun Guo Huang ◽  
Yu Shun Li
Keyword(s):  
Energy Saving ◽  
High Strength ◽  
Structural Systems ◽  
Structural Elements ◽  
Structural System ◽  
Sustainable Building ◽  
Production Methods ◽  
Building Technology ◽  
Earthquake Resistant ◽  
New Type

Modern bamboo structural system is a new type of green sustainable building technology, conform with our country’s requirements of developing environment-protecting and energy-saving buildings. This paper presents a new lightweight, high-strength , earthquake-resistant and energy-saving system-steel-bamboo composite structural systems , and given the various structural elements of the composite structural systems of steel-bamboo production methods . This paper also gives the production methods of steel-bamboo composite elements. Steel-bamboo-structural system can per-fectly combine steel and bamboo to bear load together, and it have excellent mechanical properties and broad application prospects.

Vibration of structurally connected high-rise buildings under wind force

2021 ◽  
Author(s):  
Mehmet Köhserli ◽  
Péter L. Várkonyi
Keyword(s):  
Structural Systems ◽  
Building Structures ◽  
Structural Behaviour ◽  
Wind Force ◽  
Building Stock ◽  
Existing Building ◽  
High Rise ◽  
Tall Structures ◽  
Simulation Results ◽  
Structural Networks

<p>Cities are organized around various underlying networks but building structures do not follow this trend. The isolation of structural systems causes difficulties in the case of tall structures. We investigate the possibility of improving structural behaviour by organizing buildings into urban-scale structural networks, with focus on vortex-induced vibration. We review our recent work, in which randomly generated collections of high-rise buildings were examined by numerical simulation using a conceptual model of the network composed of springs and point masses. Here we examine the behaviour of a realistic collection of buildings, generated by considering the existing building stock and urban fabric of Midtown Manhattan. The new simulation results suggest that connections among the buildings would enable the application of significantly softer bracing systems. This finding suggests that urban-scale structural networks is a promising direction of urban development.</p>

Multi-Level Structural Characteristics and Quasi-Static Analysis of the Hagia Sophia Using Finite Element Method

2015 ◽  
Vol 777 ◽  
pp. 59-63
Author(s):  
Quan Rong Chen ◽  
Chuan Zhang Zheng ◽  
Xiao Qian Ning ◽  
Xing Hua Liang ◽  
Shi Qing Huang
Keyword(s):  
Finite Element ◽  
Structural Characteristics ◽  
Structural Systems ◽  
Element Formulation ◽  
Structural Behaviour ◽  
Principal Stresses ◽  
Hagia Sophia ◽  
Multi Level ◽  
Different Levels ◽  
Ansys Workbench

The historic Hagia Sophia in Istanbul, which held the record as the world's largest domed building for about 800 years, is analyzed with a 3D finite element formulation, by using commercial FEA software ANSYS Workbench 14.5, to understand its structural behaviour under the action of static loading. Four different levels of structural systems are demonstrated and the their effects on the maximum values of the first principal stresses in the main dome are discussed.

scholarly journals Seismic Analysis of Multi-Storey Irregular Building with Different Structural Systems

2020 ◽  
Vol 8 (6) ◽  
pp. 3146-3155
Keyword(s):  
Sequential Analysis ◽  
Seismic Analysis ◽  
Response Spectrum ◽  
Bending Moment ◽  
Structural Systems ◽  
Structural Members ◽  
Structural Behaviour ◽  
Construction Period ◽  
Structural Engineers ◽  
Storey Building

Most of the multi-storey buildings are analysed based on an assumption that the structure is subjected to whole load after modelling the entire structure. But in reality, each storey is subjected to some assumed loads to act during construction period itself as they are constructed in stages as storey wise. Sequential analysis in a structure is ignored by many structural engineers while analysing the structure. Because of this ignorance, variation may occur in structural members in the below storey with respect to above storey as the construction proceeds which leads to incorrect distribution of forces in the member. So, analysis has to be done only by sequential application of loads in each storey for the safety of the structure and cost-effectiveness. In order to study the structural behaviour of a 20-storey building with vertical setback irregularity has been modelled and analysed by response spectrum method considering with and without Construction Sequence Analysis (CSA) using different structural systems in CSI ETABS V16 as per BIS 1893:2016 (Part 1). Finally, results such as axial force, shear force, bending moment are drawn for the structural members and response such as storey displacement, storey shear and storey drift are plotted and compared for each structural system.

Performance of churches during the Darfield earthquake of September 4, 2010

2010 ◽  
Vol 43 (4) ◽  
pp. 374-381 ◽  
Author(s):  
Myrto Anagnostopoulou ◽  
Michel Bruneau ◽  
Henri P. Gavin
Keyword(s):  
Seismic Retrofitting ◽  
Structural Systems ◽  
Ground Settlement ◽  
Structural Behaviour ◽  
Architectural Styles ◽  
Out Of Plane ◽  
Church Structures

This paper focuses on the structural behaviour and types of failure of churches located in the general Canterbury area following the Darfield earthquake of September 04, 2010. Given the variability in architectural styles, structural systems and properties of underlying soils, different patterns of damage were identified including out-of-plane gable failures, collapse of bell towers and cracking due to liquefaction and ground settlement. An architectural and historical landmark of Christchurch, the Christchurch Cathedral, suffered insignificant damage during the earthquake mainly because of its seismic retrofitting during 2006-2007. However many other church structures required retrofitting and supporting measures to avoid additional damage.

Seismic Loss Estimation and Environmental Issues

2015 ◽  
Vol 31 (3) ◽  
pp. 1285-1308 ◽  
Author(s):  
Danny Arroyo ◽  
Mario Ordaz ◽  
Amador Teran-Gilmore
Keyword(s):  
Seismic Design ◽  
Cost Optimization ◽  
Environmental Issues ◽  
Loss Estimation ◽  
Environmental Cost ◽  
Structural Systems ◽  
Optimization Analysis ◽  
Planning Time ◽  
Seismic Loss ◽  
Earthquake Resistant

The consideration of environmental losses in seismic design is discussed within the framework of cost optimization analysis. Within this context, the equivalent carbon emissions (CO2-e) are used as a proxy for the environmental cost related to seismic damage, and a model to assess the environmental cost in seismic loss estimation is introduced. The use of the model is illustrated through its application to the analysis of simple earthquake-resistant structural systems. It is concluded that under certain circumstances, the consideration of environmental issues in seismic design may be important, especially as the planning time horizon of the facility increases.

scholarly journals A Short Note for Dr. Watabe’s Review in 1974

2006 ◽  
Vol 1 (3) ◽  
pp. 357-357
Author(s):  
Hiroshi Kuramoto ◽  
Keyword(s):  
Seismic Design ◽  
Short Note ◽  
Building Design ◽  
Structural Systems ◽  
Design Codes ◽  
Comprehensive Understanding ◽  
Basic Principles ◽  
Preceding Article ◽  
High Rise ◽  
Earthquake Resistant

In the preceding article, I reviewed two seismic design codes of the Building Standard Law of Japan, revised in 1981 and 2000, with the transition of Japanese seismic design codes. Having read the 1974 review by Dr. Makoto Watabe, I was most impressed by his comprehensive understanding of seismic structural systems for buildings – an understanding that is fresh even today, more than 3 decades later. He moves from the basic principles for seismic building design to earthquake-resistant properties of building. The general seismic design principles of buildings he has reviewed are very sound and introduced both in current seismic design codes I have reviewed and the seismic design of super high-rise buildings over 60 m high.

scholarly journals Earthquake Response of Cold-Formed Steel-Based Building Systems: An Overview of the Current State of the Art

Buildings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 228 ◽  
Author(s):  
Gianmaria Di Lorenzo ◽  
Attilio De Martino
Keyword(s):  
State Of The Art ◽  
Physical Stability ◽  
Earthquake Response ◽  
Structural Systems ◽  
General Introduction ◽  
Ongoing Research ◽  
Current State ◽  
Earthquake Resistant ◽  
Building Systems ◽  
Cold Formed Steel

Building systems fabricated with cold-formed steel (CFS) profiles and members made of wood, gypsum, or other materials allow solving a range of issues arising in common constructional elements thanks to their advantages, such as lightness, strength, durability, physical stability, sustainability, and cost-effectiveness. As a result of this inherent competitiveness of CFS based buildings, their use has been gradually increasing in recent years both in the field of structural systems as non-structural architectural components and, above all, in the area of earthquake resistant buildings, where lightness play a key role. After a general introduction, the paper gives an overview of the current codification and ongoing research on CFS non-structural architectural and structural systems. Finally, the main conclusions are summarised, and possible future developments are outlined.

scholarly journals Numerical Simulation of the Semi-Rigid Behaviour of Integrally Attached Timber Folded Surface Structures

Buildings ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 55 ◽  
Author(s):  
Andrea Stitic ◽  
Anh Nguyen ◽  
Aryan Rezaei Rad ◽  
Yves Weinand
Keyword(s):  
Nonlinear Analysis ◽  
Large Scale ◽  
Numerical Models ◽  
Element Model ◽  
Surface Structures ◽  
Structural Systems ◽  
Structural Behaviour ◽  
Fe Modelling ◽  
Spring Element ◽  
Modeling Strategy

Timber folded surface structures assembled using semi-rigid multiple tab and slot joints (MTSJ) have been shown to form feasible structural systems with high load bearing potential. However, for their further development and use on large building scales, a pertinent model for prediction of their structural behaviour has yet to be developed. This paper focuses on simplified numerical methods for accurately modelling the semi-rigid structural behaviour of bidirectional timber folded surface structures with multiple tab and slot connections. Within this scope, the structure behaviour is considered to be in the elastic stage. Three practical methods of analysis for such structural systems are presented. The first two approaches use the Finite Element Method (FEM), where the theory of plates and shells are applied. In the first method, the MTSJs are modeled using strip element models, while, in the second strategy, spring models are used. The third modeling strategy elaborates on the new macroscopic mechanical models, referred to as macro models. Sets of one-dimensional (1D) elements are used to represent the mechanical behaviour of the entire system. Both linear and geometric nonlinear analysis are performed for all three modeling strategies. The numerical results are then validated against the large scale experiments. Comparison of the strip and spring element model results have shown that the strips represent more accurately the experimentally obtained values. Concerning the macro modelling approach, very good agreement with both detailed FE modelling approaches, as well as experimental results, were obtained. The results indicate that both linear and nonlinear analysis can be used for modelling the displacements within the elastic range. However, it is essential to include geometric nonlinearities in the analysis for accurate modelling of occurring strains as well as for displacements when considering higher load levels. Finally, it is demonstrated that including semi-rigidity in the numerical models is of high importance for analysing the behaviour of timber folded surface structures with MTSJ.

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