Influence of the distribution of the shear walls on the seismic response of the buildings

2020 ◽  
Vol 15 (1) ◽  
pp. 37-44
Author(s):  
El Mehdi Echebba ◽  
Hasnae Boubel ◽  
Oumnia Elmrabet ◽  
Mohamed Rougui
Keyword(s):  
Structural Analysis ◽  
Seismic Response ◽  
Natural Frequency ◽  
Structural Design ◽  
Structural Response ◽  
Shear Walls ◽  
Structural Elements ◽  
Analysis Software ◽  
Ansys Apdl ◽  
The Impact

Abstract In this paper, an evaluation was tried for the impact of structural design on structural response. Several situations are foreseen as the possibilities of changing the distribution of the structural elements (sails, columns, etc.), the width of the structure and the number of floors indicates the adapted type of bracing for a given structure by referring only to its Geometric dimensions. This was done by studying the effect of the technical design of the building on the natural frequency of the structure with the study of the influence of the distribution of the structural elements on the seismic response of the building, taking into account of the requirements of the Moroccan earthquake regulations 2000/2011 and using the ANSYS APDL and Robot Structural Analysis software.

scholarly journals Analysis of the application of physics in the design and construction of architectural projects. The Eiffel Tower

2021 ◽  
Vol 2118 (1) ◽  
pp. 012021
Author(s):  
J D González-Almeyda ◽  
E T Ayala-Garcia ◽  
R Prada-Nuñez
Keyword(s):  
Structural Analysis ◽  
Structural Design ◽  
Methodological Framework ◽  
Basic Physics ◽  
Descriptive Approach ◽  
Convenience Sampling ◽  
Basic Concepts ◽  
Quantitative Descriptive ◽  
The Impact ◽  
Design And Construction

Abstract This article studied the impact and application of physical concepts in the design and construction of the Eiffel Tower in Paris, an architectural reference that implemented physical concepts in its structural design. A documentary methodological framework was used to establish the importance of the Eiffel Tower in the universal exposition of Paris in 1989 and, to carry out the structural analysis of the work; a quantitative-descriptive approach was used for the recognition of the basic concepts of physics from architecture according to gender, through a survey as a research instrument developed under non-probability and convenience sampling, which was applied to students of Architecture of the Universidad Francisco de Paula Santander, Colombia, in order to determine the knowledge of basic physics by students. The results of this research showed that the Eiffel Tower represents a milestone in architecture where physical concepts such as tension, compression, traction, aerodynamics, and torque were applied. Finally, it was evidenced that the students who participated in this study recognize the importance of applying the basic concepts of physics in architecture; fact by which it is recommended to encourage the study of physics, to strengthen the technological component of Architecture.

Effect of Soil on the Seismic Response of Structures Taking Into Consideration Soil-Structure Interaction

2020 ◽  
Vol 11 (2) ◽  
pp. 72-90
Author(s):  
Radhwane Boulkhiout ◽  
Salah Messast
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Soil Structure ◽  
Shear Walls ◽  
Element Model ◽  
Soil Structure Interaction ◽  
Reinforced Concrete Frame ◽  
Structure Interaction ◽  
Model Soil ◽  
The Impact

The present study covers the influence of soil-structure interaction on the response of structures and civil engineering constructions under seismic excitation. The response of the structures being studied was evaluated, first, using a perfectly embedded structure at the base. Then, using two different models to model soil-structure contact, the finite element model and a rheological model (springs and dampers) in order to illustrate the impact of soil type behavior on structure response was considered based on periods, displacements, and stresses. On the other hand, the effect of superstructure type and its stiffness on the seismic response will be determined, first, using a reinforced concrete frame with shear walls and, second, using a girder bridge. Finally, in each model mentioned above, a parametric study was conducted to better understand the dynamic behavior of the analyzed structure. As for modelling by finite element method, the study was achieved using SAP2000 code.

scholarly journals The Evolving Dynamic Response of a Four Storey Reinforced Concrete Structure during Construction

2012 ◽  
Vol 19 (5) ◽  
pp. 1051-1059 ◽  
Author(s):  
A. Devin ◽  
P.J. Fanning
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Natural Frequency ◽  
Structural Response ◽  
Vertical Vibration ◽  
Fe Model ◽  
Structural Elements ◽  
Reinforced Concrete Structure ◽  
Load Bearing ◽  
Lateral Response

Structures include elements designated as load bearing and non-load bearing. While non-load bearing elements, such as facades and internal partitions, are acknowledged to add mass to the system, the structural stiffness and strength is generally attributed to load bearing elements only. This paper investigates the contribution of non-load bearing elements to the dynamic response of a new structure, the Charles Institute, in the grounds of University College Dublin (UCD) Ireland. The vertical vibration response of the first floor and the lateral response at each floor level were recorded at different construction stages. The evolution of the structural response as well as the generation of a finite element (FE) model is discussed. It was found that the addition of the non-load bearing facades increased the first floor natural frequency from 10.7 Hz to 11.4?Hz, a change of approximately +6.5%. Similarly these external facades resulted in the first sway mode having its frequency increased by 6%. The subsequent addition of internal partitions, mechanical services and furnishings resulted in the floor natural frequency reducing to 9.2 Hz. It is concluded that external facades have the net effect of adding stiffness and the effect of internal partitions and furnishings is to add mass. In the context of finite element modelling of structures there is a significant challenge to represent these non-structural elements correctly so as to enable the generation of truly predictive FE models.

scholarly journals Development of a Landing Mechanism for Asteroids with Soft Surface

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Zhijun Zhao ◽  
Jingdong Zhao ◽  
Hong Liu
Keyword(s):  
Structural Analysis ◽  
Natural Frequency ◽  
Spectrum Analysis ◽  
Simulated Microgravity ◽  
Microgravity Environment ◽  
Floating Platform ◽  
Soft Surface ◽  
Anchoring System ◽  
The Media ◽  
The Impact

A landing mechanism to an asteroid with soft surface is developed. It consists of three landing feet, landing legs, cardan element, damping element, equipment base, anchoring system, and so on. Static structural analysis and modal analysis are carried out to check the strength and natural frequency of the landing mechanism with FEA. Testing platform for the anchoring system is introduced, and then the penetrating and anchoring tests of the anchoring system are carried out in different media. It shows that cohesion of the media has large influence on the penetrating and anchoring performance of the anchoring system. Landing tests of the landing mechanism with different velocities under simulated microgravity environment are carried out on the air-floating platform, and the impact accelerations are measured by the sensors on the landing mechanism. At the same time, these impact accelerations are processed by spectrum analysis to find the natural frequency of the landing mechanism.

Optimization of Piping Supports and Supporting Structure

2017 ◽  
Vol 139 (4) ◽  
Author(s):  
Kleio Avrithi ◽  
Harrison Hyung Min Kim
Keyword(s):  
Structural Analysis ◽  
Building Structure ◽  
Structural Elements ◽  
Analytical Target Cascading ◽  
Analysis Software ◽  
Existing Building ◽  
Hierarchical Framework ◽  
Supporting Structure ◽  
Target Cascading ◽  
Piping Systems

Optimization of piping supports is a well-known problem. The paper considers the optimization of piping supports with respect to cost and the loads transmitted to the supporting structural elements, when the orientation of the supporting structure is to be determined. This is the case, when new structural elements need to be added to the existing building structure to support components and piping systems that come as a new addition to a nuclear plant. The analytical target cascading (ATC) method is used for the optimization, combining the support loads from different piping analyses in a hierarchical framework. It is shown that the ATC method can be used for an optimized location of structural elements simultaneously supporting complex piping systems and implemented in a structural analysis software.

The Seismic Response Analysis of Damaged Slip Component of Sliding Isolated Structure

2011 ◽  
Vol 368-373 ◽  
pp. 53-57
Author(s):  
Zhong Ming Xiong ◽  
Gao Ming Qin ◽  
Zhi Hui Zhang
Keyword(s):  
Seismic Response ◽  
Building Design ◽  
Response Analysis ◽  
Analysis Software ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Damage Degree ◽  
Traditional Structure ◽  
The Finite Element Analysis ◽  
The Impact

In the service of sliding isolated structure, the slip component damage degree determines the safety of sliding isolated structure. The seismic response analysis about a sliding isolated frame structures was obtained by the finite element analysis software SAP2000 at various loads and compared with the traditional structure. Seismic response differences between slip component of the different forms and number damage was studied. According to Teflon invalid and the displacement-limited of energy dissipation component invalid, the impact of seismic response owing to slip component damage was analyzed. It will provide a reference for the isolated building design, the effective maintenance and damage detection.

Analysis of BIM methodology implementation in structure projects

2019 ◽  
Author(s):  
Alcinia Zita Sampaio
Keyword(s):  
Structural Analysis ◽  
Construction Industry ◽  
Analytical Model ◽  
Structural Design ◽  
Structural Models ◽  
Work Flow ◽  
Analysis Software ◽  
Building Information Modelling ◽  
Building Information ◽  
Structural Engineer

<p>Building Information Modelling (BIM) methodology is currently widely used in a large number of sectors linked to the construction industry. The present work intends to conduct a state of knowledge regarding the BIM technology, mainly focusing on the development of the structural project. In the study, the capability of BIM-based tools applied to the structural design is analysed and an optimized work-flow, from the viewpoint of the structural engineer, is presented. BIM structural models of two study cases were created, the consistency of the correspondent analytical model is verified and the transposition process of the model to the structural analysis software is carefully examined. During the process inaccuracies are identified and adjustments are referred in order to optimize the application of BIM methodology on structure projects. The assessment of the level of interoperability is based on the analysis of the quality from the information transposed between software and from the consistency of the final product.</p>

scholarly journals The impact of shear wall location on the seismic response of RC frame buildings resting on sloping ground

2019 ◽  
Vol 2 (1) ◽  
pp. 61-68
Author(s):  
Upama Acharya ◽  
Jagat Kumar Shrestha
Keyword(s):  
Response Spectrum ◽  
Pushover Analysis ◽  
Structural Response ◽  
Earth Pressure ◽  
Shear Walls ◽  
Shear Wall ◽  
Sloping Ground ◽  
Negative Effect ◽  
Rc Shear Wall ◽  
The Impact

It is observed during the past earthquakes, buildings in hilly regions have experienced high degree of damage leading to collapse though they have been designed for safety of the occupants against natural hazards. Hence, while adopting practice of multistory buildings in these hilly and seismically active areas, utmost care should be taken for making these buildings earthquake resistant. For the buildings on sloping ground, the height of columns below plinth level is not same which affects the performance of building during earthquake. Hence to improve the seismic performance of building shear walls play very important role.It is very necessary to determine the most effective location of shear walls. Shear wall arrangement must be accurate, because if not, it will cause negative effect instead. This paper is aimed at predicting the effect of positioning RC shear wall of different shape on the structural response of RC building resting on sloping ground. Eight models have been prepared considering earth pressure and without considering earth pressure. The displacement of building is to be determined by nonlinear static pushover analysis. For the purpose of pushover analysis and response spectrum analysis finite element-based software SAP 2000 has been utilized.

Sign in / Sign up

Export Citation Format

Share Document