scholarly journals The study of shear wall uses in buildings during the architecture design process

2021 ◽  
Vol 907 (1) ◽  
pp. 012002
Author(s):  
Livian Teddy ◽  
Husnul Hidayat ◽  
Dessa Andriyali A
Keyword(s):  
Design Process ◽  
Shear Walls ◽  
Architecture Design ◽  
Optimal Position ◽  
Building Models ◽  
Earthquake Resistant ◽  
Prone Area ◽  
Strength And Stiffness ◽  
Optimal Area ◽  
Matlab Programming

Abstract In Indonesia, an earthquake-prone area, building designs must be earthquake resistant, and using shear walls is one of the ways to make buildings more earthquake resistant. However, determining the requirements and optimal position of shear walls is difficult. Miscalculating in their positioning can cause torsion and other unpredictable behavior. Previous studies were done to know shear walls’ optimal areas and positioning. The first way was trial and error, but this method was ineffective and took a long time. The second way, MATLAB programming, is actually very effective since the needs and orientation of the walls can be determined precisely. Nevertheless, not all structural engineers and architects master the programming language. This study, therefore, proposes relatively simple formulas and procedures to determine the optimal area and positioning of shear walls for architects preliminary design during architecture design process. The accuracy test for the formulas and procedures was carried out using ETABS simulation experiments on 10 building models with various irregular categories. The result showed the formulas and procedures proposed in this study were quite accurate in calculating the needs and position of shear walls. Optimal conditions, furthermore, were quite easy to achieve in symmetrical geometric compositions (1 or 2 axes) while organic or random geometric compositions were quite difficult to achieve. When the use of shear walls achieves optimal condition, the strength and stiffness of a building are increased, and the distribution of its strength and stiffness is relatively even, hence anticipating deformation behavior and reducing building eccentricity.

scholarly journals Identifying geometric configuration of earthquake-resistant buildings

2021 ◽  
Vol 6 (2) ◽  
pp. 315-324
Author(s):  
Livian Teddy ◽  
Johannes Adiyanto ◽  
Husnul Hidayat
Keyword(s):  
Architectural Design ◽  
Slenderness Ratio ◽  
Shear Walls ◽  
Column Height ◽  
Tectonic Plates ◽  
Building Models ◽  
Earthquake Resistant ◽  
Prone Area ◽  
Collapsed Buildings ◽  
Design Earthquake

Indonesia is an earthquake-prone area because it is located at the world's most active tectonic plates and hundreds of local faults. Obviously, there have been many earthquake victims caused by collapsed buildings, hence the need for earthquake-resistant construction. However, there is not much guidance for architects to design earthquake-resistant buildings. This research proposes guidance for architects on how to design building forms relatively able to resist earthquakes. The simulation experiment method involving 32 building models in various forms was employed. The experimental results were then analyzed with modal analysis in ETABS and SVA for architectural design. Based on the analysis report, some guidelines were proposed: 1). Avoid buildings that are too slender, use the slenderness ratio H/D ≤ 2, 2). Avoid soft stories where the ratio of the top column height (h) to the bottom column height (h1) ≤ 0.8, 3). Use symmetrical shapes with 1 or 2 axes and avoid shapes with random compositions, 4). Use the additive and subtractive mass transformation ≤ 15%, 5).Strengthen the structural elements, install shear walls, or use dilatation to minimize potential torsional irregularities and non-parallel system irregularities of L, T, U, +, and Z forms6). Avoid using non-axial asymmetrical forms.

scholarly journals Earthquake Resisting Techniques on A G+10 Storey Building with the Help of Shear Walls & Bracings, using Software

2019 ◽  
Vol 9 (2) ◽  
pp. 1893-1897
Keyword(s):  
Base Isolation ◽  
Human Life ◽  
Shear Walls ◽  
Seismic Resistance ◽  
Seismic Zone ◽  
Natural Catastrophes ◽  
Seismic Force ◽  
Earthquake Resistant ◽  
Strength And Stiffness ◽  
Column Jacketing

From the beginning of life on Earth it is evident that natural catastrophes cause a lot of destruction to human life and property. One of the major natural phenomena is the Earthquake. Sudden shaking of ground is a difficult challenge to any structure standing on earth. Due to Improper design of the structure without seismic resistance many buildings have collapsed and lives have lost during earthquakes. Different shapes & materials of buildings have been used to achieve the strength required to withstand the earthquake. In modern era, lots of seismic force resisting techniques are being used to make a structure/building earthquake resistant. These techniques include introducing Shear walls, Bracings, base isolation, column jacketing etc. to enhance the structure. In this paper, I present a Comparative analysis of earthquake resisting techniques on a G+10 story building with the help of different types of Shear walls & Bracings, using software. The comparison is done between: an un-Resisting structure, parallel shear walls, L-shaped shear wall, diagonal bracings, X-shaped bracings & Vshaped bracings. The use of shear walls and bracings helps to strengthen then structure to make it more Earthquake resistant. The analysis in done on a G+10 building for seismic zone III as per IS 1893:2002 codal provisions. The software that I have used to carry out this analysis is Staad pro v8. It is found out that shear walls and bracing contribute largely in reducing the deflection by increasing the strength and stiffness of the building. The results of this project can further be used to enhance the seismic strength of buildings using combination of seismic resistance techniques.

Effect of Hold-Down Misplacement on Strength and Stiffness of Wood Shear Walls

2005 ◽  
Vol 10 (2) ◽  
pp. 79-87 ◽  
Author(s):  
Daňa J. Lebeda ◽  
Rakesh Gupta ◽  
David V. Rosowsky ◽  
J. Daniel Dolan
Keyword(s):  
Shear Walls ◽  
Strength And Stiffness

Study on the shear wall structure with combined form of replaceable devices

2017 ◽  
Vol 21 (9) ◽  
pp. 1327-1348
Author(s):  
Cong Chen ◽  
Renjie Xiao ◽  
Xilin Lu ◽  
Yun Chen
Keyword(s):  
Shear Walls ◽  
Shear Wall ◽  
Performance Comparison ◽  
Wall Structure ◽  
Structural Part ◽  
Coupled Shear Wall ◽  
Wall Structures ◽  
Strength And Stiffness ◽  
Energy Dissipated ◽  
Resilient Structure

Structure with replaceable devices is a type of earthquake resilient structure developed to restore the structure immediately after strong earthquakes. Current researches focus on one type of the replaceable device located in the structural part that is most likely to be damaged; however, plastic deformation would not be limited in a specific part but expand to other parts. To concentrate possible damage in shear wall structures, combined form of replaceable devices was introduced in this article. Based on previous studies, combined form of replaceable coupling beam and replaceable wall foot was used in a coupled shear wall. Influences of the dimension and location of the replaceable devices to the strength and stiffness of the shear wall were investigated through numerical modeling, which was verified by experimental data. Performance comparison between the shear walls with one type and combined form of replaceable devices and the conventional coupled shear wall was performed. In general, the shear wall with combined form of replaceable devices is shown to be better energy dissipated, and proper dimensions and locations of the replaceable devices should be determined.

scholarly journals KAJIAN ANTITESIS HEGELIAN DALAM ARSITEKTUR

2020 ◽  
Vol 1 (1) ◽  
pp. 61-74
Author(s):  
Muhammad Nurwahyu ◽  
Murni Rachmawati ◽  
Josef Prijotomo
Keyword(s):  
Design Process ◽  
Architecture Design ◽  
Design Exploration ◽  
Starting Point ◽  
Way Of Thinking

Title: Study of Hegelian Antithesis in Architecture This paper tries to expose hegelian antithesis existence, that can be used as a way of thinking in architecture design process. With antithesis that lies in philosophy scope, then it needs to be settled with similar thing in architecture. The settlement will be set by using descriptive critique method. The result of the settlement can become a starting point for the usage of Hegelian antithesis in architecture design exploration. In this paper, antithesis proven to be equal with architecture of difference as bildung. Those equality shown in the architecture dialogue. With this equality, antithesis become defined and known its position in architecture.  

scholarly journals Analisis Pengaruh Lokasi Dinding Geser Terhadap Pergeseran Lateral Bangunan Bertingkat Beton Bertulang 5 Lantai

2021 ◽  
Vol 4 (1) ◽  
pp. 16
Author(s):  
Leonardus Setia Budi Wibowo ◽  
Dermawan Zebua
Keyword(s):  
Lateral Displacement ◽  
Shear Walls ◽  
Seismic Loading ◽  
Shear Wall ◽  
Structural System ◽  
Earthquake Force ◽  
Earthquake Resistant ◽  
Story Drift ◽  
Frame System ◽  
Rc Shear Wall

Indonesia is one of the countries in the earthquake region. Therefore, it is necessary to build earthquake-resistant buildings to reduce the risk of material and life losses. Reinforced Concrete (RC) shear walls is one of effective structure element to resist earthquake forces. Applying RC shear wall can effectively reduce the displacement and story-drift of the structure. This research aims to study the effect of shear wall location in symmetric medium-rise building due to seismic loading. The symmetric medium rise-building is analyzed for earthquake force by considering two types of structural system. i.e. Frame system and Dual system. First model is open frame structural system and other three models are dual type structural system. The frame with shear walls at core and centrally placed at exterior frames showed significant reduction more than 80% lateral displacement at the top of structure.

scholarly journals Study of the Start Point of Optimization Trajectories for Complex Strategies of the Circuit Design Process

2021 ◽  
Vol 20 ◽  
pp. 133-139
Author(s):  
Alexander Zemliak
Keyword(s):  
System Design ◽  
Design Process ◽  
Circuit Design ◽  
Initial Point ◽  
Point Selection ◽  
Design Algorithm ◽  
Optimal Position ◽  
Starting Point ◽  
Dividing Surface ◽  
Selection Of

The different design trajectories have been analyzed in the design space on the basis of the new system design methodology. Optimal position of the design algorithm start point was analyzed to minimize the CPU time. The initial point selection has been done on the basis of the before discovered acceleration effect of the system design process. The geometrical dividing surface was defined and analyzed to obtain the optimal position of the algorithm start point. The numerical results of the design of passive and active nonlinear electronic circuits confirm the possibility of the optimal selection of the starting point of the design algorithm.

A framework for implementing integrated project delivery in architecture design firms in Egypt

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ayman Ahmed Ezzat Othman ◽  
Lamis Yasser Wagih Youssef
Keyword(s):  
Literature Review ◽  
Case Studies ◽  
Design Process ◽  
Project Delivery ◽  
Architecture Design ◽  
Survey Questionnaire ◽  
Integrated Project Delivery ◽  
Content Type ◽  
Integrated Project ◽  
Design Firms

Purpose This paper aims to develop a framework for implementing the integrated project delivery (IPD) approach during the design process in architecture design firms (ADFs) in Egypt. Design/methodology/approach A research methodology consists of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, literature review was used to identify and categorise the challenges of implementing IPD during the design process. Second, four case studies were analysed to investigate the values delivered to the client or missed due to the use of IPD or traditional procurement approaches, respectively. Finally, a survey questionnaire was carried out with a representative sample of ADFs in Egypt to investigate their perception towards the challenges of IPD implementation in Egypt. Based on the results of the above, the research developed a framework to facilitate the implementation of IPD in ADFs in Egypt. Findings Through literature review, the research identified 30 challenges that hamper the implementation of IPD in ADFs. These challenges were categorised due to their nature into five groups, namely, integration, cooperation, commitment and trust challenges, knowledge, experience skills and decision-making challenges, cultural challenges, legal and contractual challenges and technical and financial challenges. Results of data analysis showed that “poor communication and spirit of collaboration between project stakeholders” was ranked the highest influential challenge as IPD is based on collaboration and trust between project participants. In addition, “lack of training and motivation in investing for using IPD” was ranked the lowest influential challenge due to the poor attention paid to training in the construction industry. Moreover, despite the benefits of IPD implementations in many countries worldwide, it is not implemented in the Egyptian context. This necessitated taking action towards developing a framework to facilitate IPD implementation in ADFs in Egypt. Research limitations/implications The research focussed on ADFs in Egypt. Practical implications Adopting the proposed framework developed through this research will help implementing IPD during the design process in ADFs. Originality/value The research identified, categorised and analysed the challenges that obstruct the implementation of IPD in ADFs. The research tackled a topic that received scant attention in construction literature in the Middle East generally and Egypt in particular. In addition, this paper presented a framework to facilitate the implementation of IPD during the design process, which represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.

scholarly journals Effect of cotton padding on the setting properties of plaster slabs

2013 ◽  
Vol 95 (2) ◽  
pp. 107-109 ◽  
Author(s):  
D Barlow ◽  
R Bansal ◽  
T Barlow ◽  
SJ Rhee ◽  
JH Kuiper ◽  
...  
Keyword(s):  
Water Content ◽  
Water Immersion ◽  
Testing Machine ◽  
Materials Testing ◽  
Optimal Position ◽  
Three Point Bending ◽  
Before And After ◽  
Plastic Cylinder ◽  
Strength And Stiffness ◽  
American Society

Introduction Plaster of Paris (PoP) impregnated bandages have been used to maintain the position of bones and joints for over a century. Classically, wool dressing is applied to the limb before the PoP, which can then be moulded to the desired shape. A modification of this practice is to wrap the PoP bandages circumferentially in cotton before wetting and applying to the patient in an attempt to reduce inhalation of plaster dust and reduce mess. However, this may affect the water content of the cast and therefore also its setting properties and strength. This study compared the setting properties of PoP casts when used with and without cotton wrapping. Methods Sixty specimens, compliant with the American Society for Testing and Materials standards for three-point bending tests, were prepared, with thirty wrapped in cotton. All were weighed before and after water immersion, and wrapped around a plastic cylinder to mimic limb application. Bending stiffness and yield strength was measured on a servohydraulic materials testing machine at 2, 6, 12, 24, 48 and 72 hours. Results The water content of cotton-wrapped plaster was significantly higher (50%) than that of standard plaster. It had significantly lower strength up to 24 hours and significantly lower stiffness up to 72 hours. Conclusions The initial decrease in strength and stiffness of the cast wrapped in cotton may comprise the ability of the backslab to hold the joint or bone in an optimal position. Any modification of the standard plaster slab application technique should allow for the potential adverse effects on the plaster setting properties.

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