Construction Of Apartment Buildings Research Articles

방음시설의 효율적 설계 대안에 관한 연구

The construction of apartment buildings near the road is increasing in the city. Noise insulation facilities are installed to reduce road traffic noise. The most effective is the sound proof tunnel. However, the sound proof tunnel is indiscriminately and excessively installed. Noise isolation performance and economic feasibility should be considered when installing sound proof tunnel. Based on the results, sufficient alternatives will allow for efficient designs at the same cost. This study provided an alternative to the efficient design of insulation facilities for apartment housings. It predicted the impact of traffic noise. We simulated 3D simulation of the apartment buildings. It analyzed the noise reduction effects.

아파트 건축 작업장에서 사용되는 에피클로로하이드린-비스페놀A의 노출 평가: 파일럿 연구

아파트 건축 작업장에서 사용되는 에피클로로하이드린-비스페놀A의 노출 평가: 파일럿 연구

CRIMINAL AND LEGAL PROTECTION OF HOODWINKED INVESTOR

In the article the problem of hoodwinked investors is viewed
 and the necessity of protection with the use of criminal and legal
 means of the constitutional right to housing in the performance of
 a contract of equity participation is substantiated. The attention is
 focused on increased social danger of fraud in the sphere of the
 shared construction of apartment buildings. The authors formulated
 the proposed changes to the criminal law in the part of additions
 of qualifying signs of fraud and, consequently, increasing the
 punishment for cheating the participants of shared construction.

The effect of new carbon emission reduction targets on an apartment building in South Korea

A heavily industrial nation, South Korea has one of the highest carbon emission production rates in the world. To participate in the global efforts to reduce carbon emissions, the South Korean government has recently proposed four national targets for carbon emission reduction: 14.7%, 19.2%, 25.7%, and 31.3% from the predicted 2030 BAU level. As the embodied environmental impacts of apartment building are becoming increasingly apparent, this study develops a carbon emission reduction policy model using a system dynamics approach to estimate the required amount of carbon emission reduction of apartment building construction. The results of this study indicate that apartment buildings require the reduction of 190 million kg CO2 for policy one, 248 million kg CO2 for policy two, 332 million kg CO2 for policy three, and 404 million kg CO2 for policy four, respectively, in the year 2030. This study also conducts a sensitivity analysis to investigate the impact of apartment floor demand on the expected total carbon emission amount and the carbon emission reduction amount of an apartment. Based on those results, this study develops a mathematical model for determining the optimal numbers of apartment units.

건설현장 안전관리 인력투입에 대한 효율성 분석

This study analyzed the safety management efficiency through input-oriented BCC Model using DEA by making of Models, in which this study selected the number of staff affiliated with the construction site, number of staff members on the construction team, and number of safety personnel as Input Factor, along with the number of disaster victims and zero-accident accomplished hours as output elements, targeting 40-or-so apartment building construction sites which are being built by 3 domestic construction companies. As a result of efficiency, it was 0.643, the number of efficient DMU was 4. In the aspect of returns to scale, 21 construction sites(52.5%) found to be in a state of increasing returns while 14 construction sites(35%) was in a state of Decreasing returns. The reason for inefficiency was found to lie in technical factors in case of 30 construction sites(75%). Lastly, inefficient DMU is in need of 38.9 % and 66% reduction in site personnel and safety personnel. Based on study results, the 29 construction sites accounting for 72.5% of DMU for safety management efficiency evaluation object turned out to do inefficient safety management that doesn't fit the size of each company.

Work breakdown structure (WBS) development for underground construction

Abstract A work breakdown structure (WBS) can prove to be pivotal to successful project management planning. There are few published studies about the methodologies or tools to develop the appropriate WBS for a project, and those that are available are limited to the specific areas of construction such as apartment-building construction and boiler manufacturing. This research has an emphasis on developing a methodology with higher generalizability, which has the capability to be customized to complex underground projects. To address this issue, a new methodology that employs hierarchical neural networks to develop the WBS of complex underground projects is presented. This methodology has been applied to several tunnel case studies and it has been shown that for a real project, the model is able to generate the WBS and its activities that are comparable to those generated by a project planner. Consequently, it is concluded that these modeling methods have the capacity to significantly improve the WBSs for complex underground projects and improve key project tasks, such as workload planning, cost estimating and scheduling.

Защита прав граждан, участвующих в долевом строительстве многоквартирных домов

This article analyzes the theoretical and practical problems encountered in the relation of shared construction of apartment buildings with the participation of citizens, considered as a means of ensuring the implementation of these commitments and to determine their effectiveness. One way to ensure fulfillment of the obligations of the builder is the colleteral. Described is a specific design of collateral with the plurality of persons in undertaking, which is a commitment to share, where each participant shared construction is entitled to the satisfaction of their claims due to the value of the collateral in a certain share. We do not assume the presence of the same size and the nature of the mortgagee´s claims, as well as due to satisfaction. Described are foreclosures on the collateral, which is possible not earlier than 6 months after the deadline to transfer the object of shared construction under the contract, termination or suspension of construction of the property in the circumstances are indicating that the object of shared construction clearly will not be shared within the prescribed period. Described are mechanisms to ensure fulfillment of obligations under the contract by the developer of a joint construction of an apartment building, which include: bank guarantee and insurance of civil liability. Described are the main provisions of the institute of civil liability of parties to the contract of a joint construction, which has two main functions: compensatory, or remedial, and preventive. Defined are grounds for bringing parties to the contract of a joint construction to civil liability, which is considered to be committing an offense, namely, non-performance or improper performance of contract terms.

An Analysis to the Understanding of Safety Equipment for Construction Workers

According to the industrial accident statistics reported by the Korea Occupational Safety and Health Agency, about 10 percent of accidental work site deaths were caused by defect or misuse of safety equipment [1]. For this reason, safety equipment should be understood properly to prepare a plan for its appropriate use [2]. Therefore, this study aims to identify the related problems by studying the understanding of safety equipment for construction works at sites. To conduct this study, a questionnaire survey of 100 construction workers in apartment building construction sites in Jeolla-do was carried out. This study reveals that the education on safety equipment is of help for construction workers, but they do not have a deep understanding of it in actual use.

Legal Environment and historical issues of Registration on Immovable Property Pledge of Mongolia

Summarizing the total amount of notary activities between 1997-2011, provided from the NCM, including the percentage of verification of the contract (not less than 30% of total amount of contracts are pledge29)) and complaints arise regarding this and relevant court decisions, disputes arise with respect to the immovable property contracts, or permission of the co-owner in case of pledge of immovable property that is a common property of the familymembers, legitimacy of the proxy for the pledge of the immovable property of the third party. The study of the reasons of these disputes and settlement process reveals the requirement undertake the following: 1. On verifying of the statements of interests of the parties, the notary should develop and verify the contracts with differentiation between ordinary and guaranteed forms of hypothecs. 2. In case of verification of the pledge, the verification should be done in compliance with its purpose specified in the law. Law on Pledge for real estate/immovable property does not cover special types of the hypothecs and provides for the single model for all types of pledge regarding the immovable property, which constitutes uncertainty with respect to the concept of the “Program on source fund for the implementation of the Government Project on construction of apartment buildings for 40000 families”. The above fact implies that if the Law on Pledge for immovable property had not provided for the regulation of a pledge relation limited to the single model, but for precise regulations of different standard types of hypothecs and differences between these hypothecs and description of the legal consequences, then the legislation on regulations regarding relations of registration of the pledge for immovable property would have modified progressively becoming more accurate and complement to the interests of citizens and consumers.

El mundo católico y las ciudades-jardín en Bruselas en el período de entreguerras

À partir de l’analyse de la genèse et du développement d’une cité jardin, Kapelleveld, dans la banlieue de Bruxelles, sont examinées les stratégies catholiques de reconquête de l’espace urbain au xxe siècle. S’inspirant des théories hygiénistes développées depuis les années 1900, elles visent, en associant l’État, les autorités locales et l’initiative privée, à permettre aux familles d’accéder à un logement décent. Le projet intègre au départ, dans les années 1920, les catholiques et les socialistes. Des architectes des deux piliers coopèrent d’ailleurs. Les socialistes abandonnent le projet dans les années 1930 (à la faveur de l’habitation multiple). Les catholiques en revanche poursuivent l’entreprise : leur urbaphobie traditionnelle les conduit à vouloir établir « la ville à la campagne ». Le projet de Kapelleveld est construit avec l’appui de nombreux catholiques, qui obtiennent le soutien de la municipalité, alors à majorité catholique. Les congrégations accompagnent l’opération en installant des bâtiments religieux. Cette cité se trouve investie par une manière d’imaginaire utopique qui inspire deux romans au jeune écrivain Jean Libert : Transposition du divin (1936) et surtout Capelle-aux-Champs (1937). Dans ces romans, la cité-jardin se donne comme une microréalisation exemplaire marquée par une convivialité de type personnaliste, elle-même inspirée par le philosophe français Mounier.

Обоснование привлекательности инвестиций в строительство доходных домов на территории Белгородской области

Обоснование привлекательности инвестиций в строительство доходных домов на территории Белгородской области

공동주택의 분양시기 변화에 따른 공급자의 수익성 비교 분석

본 연구는 주택 후분양제도를 도입한지 6년여 기간이 경과되는 현 시점에서 제도시행의 취지 및 효과를 점검하고, 공급자 관점에서 분양시기에 따른 수익성 변화를 분석하여 그 정도를 파악하였다. 서울시 공동주택 사업을 대상으로 사례분석 하였으며, 분양수입의 현재가치분석, 민감도분석, 분양가를 예측한 현재가치분석을 실시하였다. 분석결과 첫째, 선분양제가 후분양제보다 5.1%~6.2% 수익성이 높았고, 선분양의 4가지 안(착공후 즉시, 건설공정 20%, 40%, 60%) 가운데 착공과 동시에 계약금을 회수하는 안의 분양수입이 가장 높았다. 둘째, 할인율 증가와 분양수입 감소는 정비례하였으며, 할인율이 커질수록 공급자관점에서의 분양수입은 감소하였다. 셋째, 분양시기에 따른 분양가격 변동을 감안하여, 기본형건축비의 변동폭을 고려한 분양수입의 현재가치는 선분양방식이 후분양방식에 비해 2% 내외의 미미한 수준에서 다소 높았다. 본 연구는 분양시기에 따른 수익성을 공급자 관점에서 명확하게 계량화하여 제시하였고, 분양시기 변화에 따른 분양가 변동을 고려하여 분양수입을 산출하였다는 점에 의의가 있다. It has been five years since the Post-Construction Sale System of Housing was introduced. The purpose of this study is to identify objectives and effects of the Post-Construction Sale System of Housing and analyze change of profitability at different sales time from a supplier's point of view. Apartment buildings construction projects performed in Seoul are used for the case study. The present value of sales revenues, sensitivity and the present value of expected sales prices are analyzed. According to the findings, first, profits made from a Pre-construction sales system was 5.1%~6.2% higher than those from a Post-construction sales system. Among four plans of a Pre-construction sales system (A, B, C and D plan), sales revenue from the A plan, which takes a deposit at the time of starting construction, was the greatest. Second, increase of the rate of discount and decrease of sales revenues are in direct proportion. The bigger rate of discount leads actual reduction of sales revenues. Third, for the present value of sales revenues reflecting change in basic model construction cost, a Pre-construction sales system showed a little higher than that of a Post-construction sales system by approximately 2%. It should be known that this study suggests profitability of Pre-and Post-construction sales system by clearly measuring them in the supplier's point of view and calculates sales revenues, considering change of a sale price following change of sales time.

Performance Measurement to Aid Decision Making in the Budgeting Process for Apartment-Building Construction: Case Study Using MCDA-C

AbstractThe construction environment has become increasingly complex and dynamic because of increased competitiveness and new technological and market practices, all of which require fast, accurate answers from decision makers. In this context, performance indicators have been used as the basis for decision support by various sectors of the construction industry. The Brazilian apartment building—construction sector is the industry sector with the highest individual contribution (on the basis of gross domestic product) to the construction process, mostly composed of small- and medium-sized businesses. In the residential-construction sector, most decisions are made in very unstructured and intuitive ways, and the initial budgeting process is one of the most critical phases because of the high level of uncertainty in a project’s early stages. In addition, most methods for measuring performance on the basis of indicators have been developed without regard to the preferences and values of the persons responsib...

Off-Site Construction of Apartment Buildings

AbstractThe populations of major cities in Australia are increasing rapidly and facing an acute housing shortage. Traditional apartment procurement techniques involve lengthy lead times, and therefore, factory-based, or off site–constructed (OSC), multistory apartment buildings may offer the opportunity to help fulfill the need by significantly reducing build times and potentially offer good economic value. Other advantages of OSC may include superior quality, low weight ratios, economies of scale achieved through repetition of prefabricated units, use on infill sites, sustainable design standards, and better occupational health and safety. There are also positive labor and training implications, which may help to alleviate an industrywide shortage of skills through use of semiskilled labor. Previous uncertainties about the adoption of OSC because of the high capital costs and perception issues were generally based on precast concrete structures, which are a quite different building type in terms of flexi...

A cultural urban transformation: apartment building construction and domestic space for the upper classes in 1930s Buenos Aires

During the 1930s, Buenos Aires, the capital of Argentina, grew taller, for many high-rise apartment buildings proliferated in the city centre and in the wealthiest neighbourhoods. Their construction could be seen as one of the urban consequences of the 1929 economic crisis. In this article, I focus on the impact of these urban changes on social and spatial mobility, the interaction of social aspiration with architectural changes in the apartment dwelling for the rich and on family strategies carried out to reach or reaffirm their position in the social hierarchy. The key point of analysis is the transition from the first generation of high-class apartments, inspired by European bourgeois houses to modern apartments, as the result of economic, social and cultural change. This paper seeks to analyse how the global 1930 crisis impacted on the urban structure and on social and domestic space in Buenos Aires. Elements to articulate an answer come from piecing together small fragments of historical evidence and by building bridges between the history of iconic buildings for the affluent and the history of professional architects and their patrons in the city, to illuminate the way those privileged Argentineans chose to live in the 1930s.

공동주택 부위별 마감수준에 대한 CS전문가 집단의 인식 분석

공동주택 부위별 마감수준에 대한 CS전문가 집단의 인식 분석

공동주택의 분양가 결정을 위한 영향요인 도출 및 중요도 분석

본 연구는 공동주택의 분양가 결정을 위한 영향요인 도출 및 중요도 분석을 목적으로 수행되었다. 이를 위해 서울, 경기, 충청지역별 각각 3곳의 공동주택을 사례대상으로 선정하였으며, 관련 연구자료 및 전문가 면담을 통해 분양가 영향요인을 도출하였다. 이렇게 도출된 분양가 영향요인을 대상으로 각 지역별 전문가 설문을 통해 AHP기법을 활용하여 분양가 영향요인의 중요도를 분석하였다. 상기와 같은 목적과 방법에 따라 진행된 본 연구의 결론을 요약하면 다음과 같다. 1) 공동주택 분양가 영향요인은 원가, 단지, 주택, 교통, 지역, 토지, 정책 투자가치요인의 총 8가지 항목으로 도출되었다. 2) 각 지역별 영향요인의 중요도 분석결과를 정리하면 다음과 같다. 서울지역은 투자가치요인(16.0%), 정책요인(14.6%), 원가요인(13.9%)이 주요인으로 선정되었으며, 경기지역은 지역요인(15.9%) 교통요인(13.8%) 투자가치요인(13.4%)이 주요인으로 선정되었다. 충청지역은 지역요인(17.1%), 교통요인(16.4%), 주택요인(14.9%)이 주요인으로 선정되었다. The purpose of this study is analyzed the importance ratio factors of sales price for apartment building construction projects. For this Study, Nine apartment buildings that sold in Seoul, Gyenggi, Chuncheong is selected. The study suggested eight influence factors through interview with experts, research related references, and analysis of cases. Based on those factors, Importance analysis is performed by using AHP method. The result of this study are as follows: 1) Influence factors of sales price are drawn as cost, site, housing, transportation, region, ground, policy, investment factor. 2) In the case of Seoul, The priority order of price influence factors consist of investment factor(16.0%), policy factor(14.6%), and cost factor(13.9%). In the case of Gyenggi, The priority order of sales price influence factors consist of region factor(15.9%), transportation factor(13.8%), and investment factor(13.4%). In the case of Chungcheong, The priority order of sales price influence factors consist of region factor(17.1%), transportation factor(16.4%), and housing factor(14.9%).

Real Options Valuation: An Application to the Portuguese Real Estate Market

The contribution of real options analysis on the valuation of Portuguese undeveloped building sites is significant on the decision making regarding the apartment-buildings construction. Using the options model developed by Quigg (1993), and including the necessary readjustments for the Portuguese market, it was found that the scale price elasticity parameter and construction expenditures’ elasticity of scale parameter had a strong impact on building sites’ values. The empirical analysis revealed that the option to defer adds value to undeveloped building sites’ valuations. This fact cannot be ignored when deciding upon an investment’s implementation.

인터넷기반 공동주택 하자분류 및 관리 시스템 구축에 사례기반 추론기법을 활용한 연구

Management process of apartment buildings construction has increased because the after service of construction company meet the needs of customers. Many defect data, which was inspected by construction company or customers before moving into a new apartment house, were classified by field engineers and then communicated to corresponding subcontractors. The classification process needs to be performed by an expert engineer because there is so much data, it is unfeasible to complete in a short period of time. For this classification process, an automatic classification system using case base reasoning (CBR) should be considered. This research proposed a defect management system with automatic classification system using CBR. This constructed defect management system consists of cyber after service system for tenants and the whole defect management process of construction, preservation and management of apartment buildings. This system could improve the efficiency of expert work in terms of time and accuracy, as well as helping laymen users to conduct defect classification work as experts do.

Construction Planning Method Using Case-Based Reasoning (CONPLA-CBR)

During the construction process, there occur many unexpected events that hinder timely completion of a project. One plausible solution in formulating a robust plan against such uncertainties is to provide the proper construction duration by utilizing as-built schedules in which past events are stored for similar future projects. Many schedulers thus develop schedules based on similar past schedules, taking into consideration the dynamic construction environment. As a result, construction schedulers normally refer to similar past schedules for their current projects. Few studies on the reuse of past schedules using case-based reasoning (CBR) have been conducted, and those that are available are limited to specific areas of construction such as apartment-building construction and boiler manufacturing. This research has an emphasis on developing a CBR-based general planning tool with higher applicability, which consists of generic attributes with the capability to be customized to the given project. To address this issue, construction planning by CBR (CONPLA-CBR) is presented as a generic planning tool for various types of construction projects. CONPLA-CBR, with the dynamic case approach and construction schedule data mart, also developed in this research, helps schedulers to utilize past schedules. CONPLA-CBR was not only verified to be of practical utility by experts, but also, because it uses past cases to which the successor relationships pertain, it does not require users to input all relationships. Whereas the proposed CONPLA-CBR generates master schedules at the preconstruction stage, its concept can also be applied to the construction stages to generate more detailed, for example, weekly or monthly, schedules. Thereby, CONPLA-CBR would enhance construction performance through the increased application of CBR in construction.