scholarly journals Detection of Building Defects Using CNN

2021 ◽  
Vol 9 (VII) ◽  
pp. 2727-2731
Author(s):  
Prof. Santosh K C
Keyword(s):  
Structural Integrity ◽  
Survey Area ◽  
Timely Manner ◽  
High Rise ◽  
Main Target ◽  
Learning Technique ◽  
Maintenance Work ◽  
Area Unit ◽  
The Aesthetic ◽  
Building Condition

Detection of defects together with cracks and spalls on wall surface in high-rise buildings may be a crucial task of buildings’ maintenance. purchasers area unit progressively searching for quick and effective suggests that to quickly and often survey and communicate the condition of their buildings in order that essential repairs and maintenance work will be tired a proactive and timely manner before it becomes too dangerous and big-ticket. If left unseen and untreated, these defects will considerably have an effect on the structural integrity and also the aesthetic side of buildings, timely and efficient strategies of building condition survey area unit of active want for the building house owners and maintenance agencies to switch the time- and labour-consuming approach of manual survey. so mistreatment the applying of deep learning technique of convolutional neural networks (CNN) in automating the condition assessment of buildings. the main target is to automatic detection and localisation of key defects arising from damp, patches, stains, cracks in buildings from pictures.

Relationship between building maintenance sourcing strategy selection factors and performance

2019 ◽  
Vol 17 (2) ◽  
pp. 157-174 ◽  
Author(s):  
Khai Ying Soh ◽  
Shirley Jin Lin Chua ◽  
Azlan Shah Ali ◽  
Cheong Peng Au-Yong ◽  
Anuar Alias
Keyword(s):  
Maintenance Management ◽  
Quality Factors ◽  
Performance Measurements ◽  
Content Type ◽  
High Rise ◽  
Building Maintenance ◽  
Sourcing Strategy ◽  
Maintenance Work ◽  
And Performance ◽  
Selection Factors

Purpose The building maintenance management becomes more complicated nowadays, with several sourcing strategies springing up for building maintenance work provisions. Various studies demonstrate that the selection factors and performance measurements are both essential aspects in determining and evaluating the sourcing strategy for building maintenance management. Thus, the purpose of this paper is to examine the relationships between the selection factors and performance measurements of sourcing strategy. Design/methodology/approach The paper targeted to evaluate and analyse the perceptions of the building maintenance practitioners regarding the degree of importance of selection factors and performance measurements. Through quantitative approach, the paper adopted stratified random sampling to distribute the questionnaires to the building maintenance practitioners operating in both private and government high-rise office buildings in Kuala Lumpur. Findings The findings highlighted the quality factors as the most important selection group factors; meantime, the ability to fulfil client’s need and requirement as well as the ability to deliver the service with reasonable reliability and predictability are identically important performance measurements. There is a significant relationship between the selection factors and performance measurement of sourcing strategy. Originality/value This paper provides an impetus research which uncovered the sourcing practices in the industry and guided the sourcing process in determining the appropriate sourcing strategy.

Operational Capabilities during Crisis: The Chilean Seismographic Network

2020 ◽  
Vol 92 (1) ◽  
pp. 119-126 ◽  
Author(s):  
Sergio Eduardo Barrientos ◽  
Sebastian Riquelme ◽  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Emergency Services ◽  
Negative Impact ◽  
Fault Modeling ◽  
Capital City ◽  
Timely Manner ◽  
Operational Capabilities ◽  
Finite Fault ◽  
Maintenance Work ◽  
Seismographic Network

Abstract The severe mobility restrictions imposed countrywide by authorities of Chile in response to the pandemic of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have impacted all areas of activities. Major difficulties began in March 2020, with partial quarantines in the capital city, which later extended to other cities in the country, and it soon transformed in total confinement. We examine the evolution of the pandemic and its consequences on the field and headquarters operations of the National Seismological Centre (CSN), as remote stations could not be visited to carry out maintenance work. Several indicators, as a function of time, such as station operability percentage, timely reports, and ability to deliver requested information, reveal some negative impact on the uptime of stations but not in the capability of the CSN to fulfill its mission, which is to deliver timely seismic information to emergency services. The largest event in the country within this period took place on 3 June 2020, activating in a timely manner, the new tools on finite-fault modeling being developed within the center.

scholarly journals Integration of Safety Aspects in the Maintenance Work of a Living Wall: An Overview of Practice and Challenges

2021 ◽  
Vol 18 (2) ◽  
pp. 23
Author(s):  
Loo Jun Han ◽  
Nazirah Zainul Abidin
Keyword(s):  
Construction Site ◽  
Safety Practices ◽  
Vegetation Growth ◽  
High Rise ◽  
Safety Aspects ◽  
Building Maintenance ◽  
Living Wall ◽  
Maintenance Work ◽  
Maintenance Requirements ◽  
Maintenance Process

Building maintenance is crucial to prolong a building's lifespan. Conducting the maintenance work can be dangerous, especially if it involves high-rise areas such as walls and roofs. Most literature discusses safety aspects at the construction site, while the safety aspects of maintenance work, which occur after occupancy, received less attention. This paper discusses the potential of integrating safety aspects into the maintenance work of a living wall. Living wall system (LWS) is one of the green design aspects in which the wall is designed to allow for vegetation growth. Maintenance works of a living wall involve various risks especially working in high or difficult places. This paper reviews the maintenance process and techniques adapted for maintaining the living wall through literature.  This paper presents the safety practices that have the potential to reduce the risks of conducting maintenance work on the living wall and its potential challenges. It is hoped that this paper raises further awareness that work safety in construction is not only enclosed within the construction site and its vicinity, but safety should also be considered post-occupation, especially when the design demands specific maintenance requirements such as a living wall. Keywords: Safety, building maintenance, living wall, maintenance risk, green wall

Composite High-Rise Structures: Structural Health Monitoring (SHM) and Case Studies

2018 ◽  
Vol 940 ◽  
pp. 146-152
Author(s):  
Koorosh Gharehbaghi ◽  
Maged Georgy ◽  
Farshid Rahmani
Keyword(s):  
Composite Materials ◽  
Structural Health Monitoring ◽  
Case Studies ◽  
Health Monitoring ◽  
Structural Integrity ◽  
Focal Point ◽  
Fiber Reinforced Concrete ◽  
Chemical Compositions ◽  
Structural Health ◽  
High Rise

High-rise construction typically implies a multi-storey structure approximately between forty to hundred and twenty meters tall (approximately twelve to forty storeys). On the other hand, composite materials are those made from two or more constituents generally with considerably dissimilar physical or chemical compositions. The focal point in this paper is in-particular on high-rise construction and whether or not composite materials’ structural integrity, and long-term sustainability, is comparable to that of a traditional building. To assess the composite materials’ structural integrity, Structural Health Monitoring (SHM) will also be utilised. While, composites possess different characteristics from those common to traditional materials; the universal purpose of producing such materials is to produce matters, which are stronger, lighter, and commonly less expensive. Generally, in construction, the composite materials typically include geo-polymers, fiber-reinforced concrete and others. For high-rise construction, these composite materials require to bear a variety of demanding conditions, including high winds and seismic conditions, which are important design factors for such structures. Nevertheless, a particular benefit of composite materials for high rise construction is their overall ability to maintain structural integrity despite their lack of conventional composition. The composite materials are traditionally utilised for high-rise buildings in order to reinforce the overall structural integrity. Accordingly, this paper will also include a number of case studies to support the ever-increasing utilization of composite materials for high-rise construction.

scholarly journals Setting the problem of designing monitoring systems for engineering structures and methods of its solution

2020 ◽  
Vol 164 ◽  
pp. 02026
Author(s):  
Svetlana Shendiapina ◽  
Ramidin Alisultanov
Keyword(s):  
Research Method ◽  
Continuous Monitoring ◽  
Necessary Condition ◽  
Monitoring Systems ◽  
Research Subject ◽  
Timely Manner ◽  
Engineering Structures ◽  
High Rise ◽  
Monitoring Tools ◽  
Short Time

The unprecedented construction of large-span, high-rise and technically complex Olympic facilities in a very short time sets the goal of ensuring the engineering safety of the facilities being built. A necessary condition for its solution is a well-functioning system of continuous monitoring the state of load-bearing structures. It should be capable of identifying unacceptable deviations in the operability of the structure (reducing its reliability) and notifying operating services in a timely manner. The research is devoted to designing such systems. The research subject of the study is a set of requirements for monitoring systems for engineering structures. The feed data for the conducted studies was information about accidents that occurred at constructional projects with various purposes. Analysis of monitoring tools and controlled parameters was used as a research method. The paper investigated some of the existing monitoring systems. The following global monitoring tasks are formulated: what to control; how to control; controlled parameters.

scholarly journals Steel Concrete Composite Systems for Modular Construction of High-rise Buildings

2018 ◽  
Author(s):  
Richard JY Liew ◽  
Z. Dai ◽  
Yie Sue Chau
Keyword(s):  
Structural Integrity ◽  
Lightweight Concrete ◽  
Work Force ◽  
Innovative Technology ◽  
Modular Construction ◽  
High Rise ◽  
Modular Units ◽  
Speed Up ◽  
Strength And Stiffness ◽  
Tolerance Control

Modular construction has gained popularity and attention particularly in low-rise building lately due to its numerous advantages: faster construction speed, better quality control, reduction in work force and construction waste, etc. This innovative technology promotes off-site manufacturing of modular units and on-site assembly, improving the construction efficiency and productivity. However, modular construction is not commonly used in high-rise buildings because of the joints’ flexibility as well as manufacturing and construction tolerance, which have significant impact on the overall stability of the building. This paper highlights the existing challenges of modular construction of high-rise buildings and provide several options to address these challenges. Firstly, the weight of a module is constrained by the transportation and lifting crane capacities. For this reason, lightweight concrete is introduced together with structural steel section to form lightweight steel-concrete composite system to reduce the weight of the module without compromising the strength and stiffness. Secondly, to speed up the site assembly of modular units, special joints are developed to resist the forces due to gravity and horizontal loads. Fast and easy joining techniques with acceptable tolerance control are essential to ensure the structural integrity and stability of the building. Finally, the innovation for productivity can be maximized by implementing automation technologies in the manufacturing and construction of the modular units.

scholarly journals MEANS OF FORMING ARCHITECTURAL AND ARTISTIC EXPRESSION OF MODERN PUBLIC-BUSINESS CENTERS

2019 ◽  
pp. 79-83
Author(s):  
А. Федоров ◽  
A. Fedorov ◽  
А. Скопинцев ◽  
A. Skopintsev
Keyword(s):  
Positive Contrast ◽  
Business Environment ◽  
Town Planning ◽  
Scenario Modeling ◽  
High Rise ◽  
Interior Spaces ◽  
Location Class ◽  
The Aesthetic ◽  
Aesthetic Characteristics ◽  
Tools And Techniques

The article describes the features of the organization of expressive architectural and artistic decisions of the exterior and interior spaces of business centers. Various approaches to the aesthetic formation of the business environment are proposed, based on the specifics of the town-planning location, class, and functional-typological classification of buildings of business centers. A number of composite tools for constructing the architectural appearance for three types of high-rise buildings of social and business centers are presented: multifunctional, specialized and universal. These means include: a) receiving form detail at the level of the building volume, architectural details, texture; b) the methods of combining the “architectural themes” of various functional planning, volumetric, and engineering technical components of the business center, including their consistent development, combinatorics, positive contrast, conscious emphasis and integration with the context; c) methods of identifying the high-altitude composition of a business building based on its vertical zoning. An arsenal of tools and techniques for designing an aesthetically appealing internal environment and comfortable interior spaces of business and office buildings has been developed. These techniques are based on enhancing the business environment by including internal public and collective spaces, by identifying and emphasizing communication areas and technical devices, scenario modeling of office-business and communication spaces, non-traditional tracing of communication flows. The application of the developed methodological tools will improve consumer and architectural and artistic qualities of buildings of public business centers, as well as ensure their comfort, commercial efficiency and aesthetic characteristics of the business environment.

The Impact of Multi-functionality in Promoting the Aesthetic Values of Modern Islamic Architecture

2020 ◽  
Vol 27 (2) ◽  
pp. 122-134
Author(s):  
Ibtisam Abdulelah Al Khafaji ◽  
Israa Jabber Theban
Keyword(s):  
Basic Research ◽  
Research Problem ◽  
Great Role ◽  
Islamic Architecture ◽  
Architectural Form ◽  
Main Target ◽  
Analytical Research ◽  
The Aesthetic ◽  
The Impact ◽  
Aesthetic Values

Relationship between function and aesthetic has been occupied researchers, philosophers, artists and architects considerably to define meanings and to show significance degree of mutual influences. This analytical research investigates – How multi-functionality improve aesthetic values of architectural forms in contemporary Islamic architecture. We have  defined procedurally  the concept of  multi-functionality  as a  potential forces of  generative centers  and aesthetic  as geometrical  coherence  of  architectural form. The absence of clear relations between multi-functionality and how it can be used to improve aesthetic values formed a basic research problem. The main target of this research is to determine how designers can enhancing aesthetic values of forms by using different functions. We suppose that multi-functionality improve the aesthetic values of the architectural form by strengthening   geometrical coherence. We selected Five projects of contemporary Islamic centers and sample of 20 person’s. Semantic differential scale was used to analyze variables. The research found that multi-functionality has a great role in supporting the aesthetic values of architectural form by defining physical characters, Identifying and intensifying its visual and physical connections.

scholarly journals “Avoiding the mistakes of the past”

Focaal ◽  
2020 ◽  
Vol 2020 (86) ◽  
pp. 69-83 ◽  
Author(s):  
Saffron Woodcraft
Keyword(s):  
Risk Management ◽  
Empirical Research ◽  
Housing Estate ◽  
Cultural Representations ◽  
Social Dysfunction ◽  
High Rise ◽  
The Past ◽  
Spatial Policy ◽  
The Aesthetic ◽  
Normative Models

AbstractA powerful dystopian imaginary dominates political and cultural representations of Britain's postwar tower blocks, which continue to be linked to social dysfunction and alienation despite extensive empirical research that challenges such claims. This article asks what contested declarations of failure “do” by examining how “tower block failure” is discursively deployed by placemaking professionals—planners, architects, housing managers, regeneration practitioners—engaged in the construction of a “model” mixed-tenure neighborhood in London's Olympic Park. Examining how the aesthetic figure of the “failed” high-rise housing estate is configured in relation to the normative models of citizenship and community that infuse social and spatial policy, I argue “failure” is entangled with a speculative, future-oriented economy of risk management, which refracts wider questions about the nonobvious forms that power takes in the neoliberal city.

Effect of Fibres on Beam Column Joint Failure

2016 ◽  
Vol 857 ◽  
pp. 59-64 ◽  
Author(s):  
Jerison Scariah James ◽  
Margrette Mary James
Keyword(s):  
Reinforced Concrete ◽  
Building Materials ◽  
Structural Integrity ◽  
Fibre Reinforced Concrete ◽  
Structural Shape ◽  
Framed Structures ◽  
Water Storage Tank ◽  
High Rise ◽  
Column Joint ◽  
The Comparative Study

Concrete is one of the most resourceful and environmental friendly building materials. It can be cast to fit any structural shape from a cylindrical water storage tank to a rectangular beam, slabs and column in a high-rise building. In RC buildings, portions of columns that are common to beams at their intersections are called beam column joints. Beam-column joints have a crucial role in the structural integrity of the buildings. Review of literature indicates that numerous studies were conducted in the past to study the behaviour of beam-column joints with normal concrete. However, those recommendations are not intended for the fibre reinforced concrete. Some indicates that this material is an alternative to the confining reinforcement in the joint region. So the comparative study of the performance of different fibres in beam column joint has a greater importance and relevance in the field of RCC framed structures. This thesis aims to study the behaviour of beam column joint by evaluating the performance of fibre reinforced concrete. The incorporation of fibres in beam column joint is analysed in this study. The use of different types of fibres such as steel and polypropylene are evaluated.

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