scholarly journals PERBAIKAN DAN PERKUATAN BANGUNAN SEDERHANA AKIBAT GEMPA

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Bambang Hadibroto ◽  
Sahala Ronitua
Keyword(s):  
Residential Buildings ◽  
Structural Elements ◽  
Literature Study ◽  
Repair Work ◽  
Final Project ◽  
Roof Structure ◽  
Earthquake Load ◽  
Column Joint ◽  
Materials Used ◽  
Building Engineering

Bangunan yang sering rusak apabila gempa bumi terjadi adalah bangunan sederhana atau bangunan non-engineering. Bangunan non-engineered adalah bangunan yang umumnya merupakan bangunan penduduk, rumah tinggal, dan lain-lain yang kebanyakan didirikan oleh masyarakat biasa tanpa bantuan ahli struktur. Telah banyak bangunan yang rusak akibat gempa, Sehingga  sangat dibutuhkan pengembangan metode perbaikan dan perkuatan struktur bangunan untuk memperbaiki dan memperkuat bangunan yang rusak akibat gempa. Titik-titik lemah bangunan yang merupakan titik-titik kegagalan bangunan akibat beban gempa, antara lain : join fondasi-kolom, join balok-kolom, dinding pasangan dan sistem struktur atap. Dibutuhkan perbaikan pada elemen-elemen tersebut untuk mengembalikan fungsinya seperti semula serta elemen-elemen tersebut sangat membutuhkan perkuatan sebelum terjadi gempa serta pendetailan penulangan yang akurat. Perbaikan dan perkuatan elemen struktur bangunan yang telah dikembangkan antara lain : perbaikan dinding retak dengan  metode  plesteran yang diperkuat  kawat, melapisi elemen struktur bangunan dengan lapisan beton baru, penambahan tulangan dan lapisan beton pada elemen balok, kolom dan pelat, pembuatan jangkar pada setiap 6 lapis bata dan pembuatan kolom praktis pada dinding roboh serta perbaikan dan perkuatan pada rangka atap dan plafon. Material yang digunakan dalam pelaksanaan pekerjaan perbaikan dan perkuatan bangunan sederhana akibat gempa adalah beton, baja tulangan, batu bata, bahan kimia (epoxy) untuk mempercepat proses pekerjaan serta bahan-bahan umum lainnya yang sering dijumpai dalam pelaksanaan pekerjaan kontruksi Kata Kunci : Bangunan Sederhana (Non-Engineering), Perkuatan, Perbaikan  ABSTRACT Buildings are often damaged when the earthquake occurred is a simple building or non- building engineering . Non - engineered buildings are buildings that generally are residential buildings, houses, and others are mostly established by ordinary people without the help of expert structures. Final Project is made using the method of literature study , by collecting data from a variety of books , sources and journals related to the repair and retrofitting of buildings is simple due to the earthquak . Has many buildings damaged by the earthquake , so that the much needed development of repair methods and retrofitting structures to improve and strengthen the buildings damaged by the earthquake . Weak points of the building which is the failure points of the building due to earthquake load , among others : the join - column foundation , beam - column joint , and systems partner walls roof structure. Needed improvements to these elements to restore its original function as well as those elements in desperate need before the earthquake retrofitting and reinforcement detailing accurate . Repair and strengthening of structural elements of the building that have been developed include : repair cracked wall plaster reinforced with wire method , coating the structural elements of the building with a new layer of concrete ,reinforcement and the addition of a layer of concrete on the elements of beams, columns and plates , on the manufacture of each 6 -layer anchor brick and manufacture practical columns on the walls collapsed and the repair and reinforcement on the roof frame and the ceiling. Materials used in the execution of repair work and simple retrofitting buildings caused by the earthquake is concrete , reinforcing steel , bricks , chemicals ( epoxy ) to speed up the work process as well as other common ingredients that are often encountered in the implementation of the construction works.Keywords: building a simple (non - engineering), Rretrofitting, Repair

scholarly journals Correlation between Defects and Technical Wear of Materials Used in Traditional Construction

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2482
Author(s):  
Jarosław Konior ◽  
Mariusz Rejment
Keyword(s):  
Residential Buildings ◽  
Descriptive Analysis ◽  
Technical Condition ◽  
Water Penetration ◽  
Major Drawback ◽  
Wear Process ◽  
Materials Used ◽  
Traditional Construction ◽  
The Relationship ◽  
Measurable Property

The degree of technical wear of old buildings, which are made of basic materials (cement, concrete, steel, timber, plaster, brick) using traditional technology, is expressed by the size and intensity of damage to their elements. The topic of the research concerns old residential buildings from the turn of the 19th and 20th centuries, which are located in the downtown district of Wroclaw, Poland. The descriptive analysis and the analysis of the definitions of defects that occur in the elements of residential buildings, which were performed as random analyzes, do not allow defects to be considered as measurable variables at a level of visual investigation. The major drawback of the method that is used by experts when assessing the technical condition of civil engineering buildings is that it does not numerically express the magnitude (strength) of the defects. Therefore, an attempt was made to numerically express the relationship (if such a relationship exists) between the occurred defects of buildings and the extent of their technical wear process. When calculating the strength of this relationship, the method of determining the point biserial correlation coefficient for the measurable property and the dichotomous property was used. It was found that the direction of the relation is right-hand for all the tested building elements, but the strength of the correlation between the detected defects and technical wear shows a considerable span and depends on the conditions of the apartment house’s maintenance. As a rule, damage caused by water penetration and moisture penetration always shows correlations of at least moderate strength.

scholarly journals Proposta de consolidação estrutural da Igreja de Nossa Senhora do Monte do Recôncavo

2014 ◽  
Vol 4 (3) ◽  
pp. 228-236
Author(s):  
M. Oliveira ◽  
R. Muñoz ◽  
A. Magalhães
Keyword(s):  
Eighteenth Century ◽  
Historic Buildings ◽  
Structural Elements ◽  
Roof Structure ◽  
Intervention Measures ◽  
Wood Beams ◽  
Non Destructive

RESUMOA Igreja de Nossa Senhora do Monte, construída na Bahia, Brasil, provavelmente no início do século XVIII, está localizada em São Francisco do Conde, no Recôncavo Baiano. Atualmente, o edifício encontra-se em estado geral de eversão, principalmente em relação à cobertura e ao desaprumo de paredes. Este trabalho tem como objetivo propor medidas de intervenção patrimonial para estabilização dos referidos elementos construtivos, considerando a manutenção da mesma lógica estrutural existente. Como resultados, serão apresentados: detalhe de reforço do sistema estático das tesouras de linha baixa da nave principal; sumário do projeto de substituição dos atuais barrotes de madeira por vigas metálicas; e detalhe do atirantamento da abóbada do fundo da capela-mor. Ressalta-se a importância deste trabalho de estabilização como metodologia a ser adotada em outras edificações históricas, uma vez que contempla intervenções não destrutivas, relevantes para sítios que contam com patrimônios de significativo valor histórico e cultural.Palavras chave: consolidação; patrimônio; estrutura; reforço.ABSTRACTThe Church of Nossa Senhora do Monte, built in Bahia, Brazil, probably in the eighteenth century, is located in São Francisco do Conde, in the Recôncavo. Currently the building is in a deplorable state of degradation, especially in terms of the roof and stability of the walls. This work proposes intervention measures to stabilize the said structural elements while taking into consideration and respecting the existing structural logic. The following results will be presented: detail of the reinforcement of the wood roof structure of the nave; summary of the project for the replacement of existing wood beams by metal ones; and finally the proposal to repair the vault after the presbytery. This paper emphasizes the importance of this stabilization work as a methodology to be adopted in other historic buildings, since it suggests non-destructive interventions, relevant to sites that have assets of significant historical and cultural value.Keywords: consolidation; heritage; structure; strengthening.

scholarly journals RANCANG BANGUN MESIN PENGIRIS DAUN BAWANG DENGAN KAPASITAS 300 GRAM PER MENIT

2021 ◽  
Vol 6 (2) ◽  
pp. 95
Author(s):  
Muhammad Ramadhan
Keyword(s):  
Problem Solving ◽  
Field Observations ◽  
Li Ion Batteries ◽  
Literature Study ◽  
Final Project ◽  
Hygiene Factors ◽  
Concept Planning ◽  
Li Ion ◽  
Home Industries

<p class="TTPAbstract">The need for sliced scallions is relatively large, so a tool that can assist in the slicing process is more effective both in terms of energy and time spent. Based on these problems, the idea was born to design a scallion slicing machine to help the community in slicing scallions, especially food sellers who need scallions such as egg martabak sellers, and food sellers.</p><p class="TTPAbstract">The method used is literature study (library), field observations, and problem-solving methods in the form of design which includes pre-planning in the form of machine sketches, machine concept planning, calculations, making working drawings, procurement of materials and components, toolmaking, assembly, and testing.</p><p class="TTPSectionHeading">The output of this final project is the manufacture of a scallion slicing machine that is simple and effective by not forgetting the safety and hygiene factors so that it can support the slicing process at the scale of traders and home industries. This tool has a capacity of 300 grams per minute using a DC 775 motor and is sourced from four 18650 li-ion batteries.</p>

scholarly journals Model of Window Able to Create Regenerated Interior Cold Air Film

2021 ◽  
Author(s):  
Mahmoud Majzoub
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Residential Buildings ◽  
Engineering Majors ◽  
Architectural Engineering ◽  
Building Energy Conservation ◽  
Strongly Connected ◽  
Building Life Cycle ◽  
Air Film ◽  
Building Engineering

Building Engineering or Architectural engineering, is a major of science that deals with engineering aspects in buildings, such as structure, construction, site management, mechanical, electric, lighting, acoustic, and energy efficiency. Building engineering is one of unique sciences that is strongly connected with all other types of engineering majors. In addition, it is connected to human basic life directly, and its application is able to noticed easily. However, this research will focus on the field of energy efficiency and opening construction in buildings. The reason why building energy conservation grab more researchers &lsquo;attention is the fact of its relation with all other engineering aspects, and it is a building property that is very important along building life cycle. Currently humanity are living in world that energy market is biggest market in the world after weapons(Levy 2010). Nevertheless, energy in middle east is an important factor, especially when we know that country like Saudi Arabia, 75% of inside energy consumption goes to residential buildings(Of and Audits n.d.). And the reason why these buildings consume that much refers to high usage of energy in building applications, and leak of using eco-friendly building material that able to reduce energy consumption in buildings.

scholarly journals Analysis of Construction Technology of High-rise Residential Building Engineering

2017 ◽  
Vol 1 (3) ◽  
Author(s):  
Qiu Hao
Keyword(s):  
High Speed ◽  
Residential Buildings ◽  
Residential Building ◽  
Management Control ◽  
Building Construction ◽  
Construction Technology ◽  
Land Resources ◽  
High Rise ◽  
Social Economic Development ◽  
Building Engineering

Nowadays, under the  situation  of  the accelerating  process  of urbanization,  our  social economic development has also been leaps and bounds and  the  corresponding construction industry has also been high speed developed. Our country in the field of land resources still insist on a solid  strict  management control, therefore, in this context,it will inevitably lead the land resources to face with a tense situation which has become a great test forhigh-rise residential building construction as it appears repeatedly.  Normally, high-rise residential buildings have the characteristics of limited operating surface, high investment  cost,  long construction period and high requirements of construction technology. In view of this, this paper mainly analyzes the high-rise residential building construction technology.

scholarly journals Mobile application tool for individual maintenance users on high-rise residential buildings in South Korea

2018 ◽  
Vol 167 ◽  
pp. 01002 ◽  
Author(s):  
Hee-Sung Cha ◽  
Jun Kim ◽  
Do-Hee Kim ◽  
Jia Shin ◽  
Kun-Hee Lee
Keyword(s):  
South Korea ◽  
Mobile Application ◽  
Residential Buildings ◽  
Prototype System ◽  
Repair Work ◽  
High Rise ◽  
Building Maintenance ◽  
Rapid Economic Growth ◽  
Feedback Structure ◽  
Online Feedback

Since 1980’s, the rapid economic growth resulted in so many aged apartment buildings in South Korea. Nevertheless, there is insufficient maintenance practice of buildings. In this study, to facilitate the building maintenance the authors classified the building defects into three levels according to their level of performance and developed a mobile application tool based on each level’s appropriate feedback. The feedback structure consisted of ‘Maintenance manual phase’, ‘Online feedback phase’, ‘Repair work phase of the specialty contractors’. In order to implement each phase the authors devised the necessary database for each phase and created a prototype system that can develop on its own. The authors expect that the building users can easily maintain their buildings by using this application.

scholarly journals Analysis of repair works to remove the effects of structural failure after a gas explosion

2019 ◽  
Vol 284 ◽  
pp. 02002
Author(s):  
Aleksandra Bąk ◽  
Ryszard Chmielewski
Keyword(s):  
Residential Buildings ◽  
Residential Building ◽  
Technical Condition ◽  
Structural Elements ◽  
Structural Failure ◽  
Gas Explosion ◽  
Gas Explosions ◽  
Construction Supervision ◽  
Bearing Structure ◽  
Construction Works

The article presents the issues of repair works in a multi-family residential building, whose structural and non – structural elements have been damaged and destroyed by a gas explosion and the fire. Gas explosions in residential buildings constitute a small percentage of the total number of building disasters, however, due to the relatively large number of injured people, these incidents are very dangerous [1]. Moreover, the gas explosion often leads to significant material losses and fatalities. Proper assessment of the load-bearing structure after such incident requires an extensive knowledge of the behaviour of structures. The first authority, that issues a decision regarding further use is Construction Supervision Inspector. Until the demolition of the object is ordered, the next step is to provide expert report made by an authorized construction expert, whose aim is to assess the technical condition of the elements of the structure and to determine the scope of necessary repair works. Construction expert, who give such opinion during the assessment of objects immediately after such incident, often has limited access to structural elements, moreover these elements often are covered. Hence, the recommendations contained in these reports often do not include all of required construction works.

scholarly journals RCC Highrised Residential Buildings its Influence on Earthquake Loads

2020 ◽  
Vol 184 ◽  
pp. 01107
Author(s):  
Y. Kamala Raju ◽  
G.V.V. Satyanarayana ◽  
G. Arun Sai
Keyword(s):  
Residential Buildings ◽  
Response Spectrum ◽  
Software Tool ◽  
Wind Loads ◽  
Base Shear ◽  
High Rise ◽  
Frame Buildings ◽  
Present Decade ◽  
Earthquake Load ◽  
Rc Frame Buildings

The present decade, high rise multi-storey buildings are subjected to many external effects such as earthquake, wind loads, tidal loads, etc., in most cases high rise buildings have more vulnerable to earthquake and wind loads. Most of the reinforced concrete multi-storeyed frame buildings were heavily damaged and many of them completely collapsed during due earthquakes. RC frame buildings were severely damaged due to various deficiencies when proper codal provisions are not designed. A study is need to study the behaviour of the RC framed structure under earthquake load to reduce the damage caused by earthquake forces In this investigation a RC framed building of G+20 storeyed is considered in several seismic zones under different soils as per Indian Standard code IS 1893(part1):2016, using STAAD. Pro V8i as software tool. Finally evaluate the ultimate Base shear using Equivalent static method and Response spectrum method addressing under design forces.

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