Interactive facades are dynamic in the translation of space architecture, especially aspects aesthetics, sustainability, adaptation to environment, and data relay through medium light, motion, embedded technology. The design interactive is complicated it requires time effort comprehension internal functions facade from conceptual stage occupancy. existing process modeling experimental level mock-up prototype models demonstrate a fragmentary outline on which final development façade system...

A half-precast concrete slab system (HPCSS) is reported to exhibit excellent structural performance when compared with traditional systems. However, there a lack of extant research examining the construction issues an HPCSS. Thus, in this study, we analyze process and productivity applying HPCSS by using simulation method data collected from actual case. The results indicate that (i) 1.7 times system, (ii) cost per unit exceeds (iii) critical resources affecting include form crew rebar crew....

The earned value method (EVM) is considered an advanced project control technique that provides a quantitative measure of work performance. However, the EVM effective only under assumption every activity independent. Literature shows lacks generation view even working against reliability workflow. goal this research to propose metric system supplement in terms workflow and generation. researchers suggest new customer (CEV), which defined as budgeted amount completed used by successors on...

The increase in maritime traffic and vessel size has strengthened the need for economical safe transportation networks. Currently, ship path planning is based on past experience shortest route usage. However, increasing complexity of marine environment development autonomous ships require automatic generation This paper proposes an efficient method using Dijkstra’s algorithm a network dataset created by extracting routes through spatial-temporal density analysis large-scale AIS data Delaunay...

The purpose of this study was to investigate the inelastic behaviour and ductility capacity circular hollow reinforced concrete bridge piers based on various design parameters. ultimate strength these varied with amount arrangement lateral reinforcement, ratio inside outside diameter column sections, axial load longitudinal steel percentage. A total eight solid variables tested under a constant cyclically reversed horizontal load. computer program, RCAHEST (reinforced analysis in higher...

Building information modeling (BIM) has emerged as one of the key trends in architecture, engineering, and construction (AEC) industry. As interest BIM rapidly increased, quantity related literature also thus, it become important to analyze identify topics research over this period. Therefore, order technology Korea, we used text-mining technique. In addition, by analyzing BIM-related papers using technology, can patterns, main trends, specific fields through data preprocessing, which...

The aim of this study is to analytically assess the seismic performance hollow reinforced-concrete bridge columns using a novel damage index, and provide data for developing next generation design criteria. Hollow have been used in past place their solid counterparts construction bridges. These several benefits over columns, including reduction vertical load applied foundation as well mass. Two circular two rectangular were tested under constant axial cyclically reversed horizontal load. A...

Recently, the construction industry has experienced an increase in volume of renovation work aimed at improving physical and economic performance buildings. However, owners often hesitate to execute projects because they find it difficult guarantee improvement monetary value buildings after their renovation. Therefore, by applying multiple regression analysis data collected from 98 actual renovated office cases, this study develops a model enable convenient estimation compared with existing...

The construction industry engages in renovation work to improve the physical, economic, and environmental aspects of office buildings. During consideration deteriorated buildings, it is critical for project owners estimate change monetary value buildings due completed work. Nevertheless, related research methods predicting this remain insufficient. In study, prediction model post-renovation was developed by using artificial intelligence techniques multivariate data analysis based on 90...

Despite frequent reports of work delays in renovation projects due to inherent characteristics, such as difficulties diagnosing the status existing buildings, studies addressing this issue are lacking. Therefore, study aims develop a new method predict delay probabilities renovations according attributes projects. To achieve objective, with focus on factors projects, two core concepts established: (1) risk probability project attribute; and (2) for depending probability. By performing case...

The objective of this study is to evaluate the feasibility deep-learning-based segmentation area covered by fresh and young concrete in images construction sites. RGB sites under various actual situations were used as an input into several types convolutional neural network (CNN)-based models, which trained using training image sets. Various ranges threshold values applied for classification, their accuracy recall capacity quantified. models could segment overall although they not able judge...

An adjusted assessment model based on benefit-cost analysis (BCA) is proposed for evaluating the economic efficiency of automated construction technologies. In contrast to conventional BCA, does not compare monetary values, but differences in benefits and costs between traditional methods. To verify usefulness model, it was applied a real-scale building project that used fully system, face validity confirmed. The results indicate can support decision makers identifying valuable benefit...

본 연구는 국내 외 건설사업관리 유사 건설기술용역 대가 기준 및 사례분석을 토대로 합리적인 대가기준을 제안하는 것을 목적으로 한다. 이를 위해 기존의 대가의 적정성을 분석하고, 통한 인력투입 실태를 조사하였으며, 비상주 인력의 적정수준에 대해 고찰하였다. 사례분석결과, 현행 대가산정 체계는 책임감리와의 방식의 이원화, 비 현실적인 대가기준 인력배치 등이 문제점으로 도출되었다. 위한 개선 방안으로 건설용역 정비, 대가수준의 현실화, 사업초기단계 배치인력의 탄력성 확보, 사업특성을 고려한 인력 활용을 제안하였다. 향후 건설사업관리의 현실화 대가산정을 접근방법의 개선에 기여하여 업무의 효율성 향상에 도움이 될 것으로 기대된다. The objective of this paper is to suggest the improvement estimating system for construction management (CM) service fee through analysis...

Operation planning for table formwork using a crane-independent lifting system (CLS) is crucial factor affecting productivity in tall building construction. Inappropriate heuristic operation plans are likely to increase work duration because of temporarily displaced stacks forms, and may also costs excessive use equipment. The authors propose simulation-based model efficient operations By optimizing the shifting sequence forms location CLS case study, proposed reduced working hours by 6.62%...

The systematic collection and management of on-site information in high-rise building construction are important factors management. Recently, wireless sensor network (WSN) technology has been utilized to manage the various tasks involved efficiently a timely manner. However, because repeated installation sensors repeaters along with progress, existing WSN is ineffective when applied temperature concrete structural work. Here, we propose new data method which worker uses smartphone...

The successful construction of tall buildings requires effective management based on various quantitative data. recent development ubiquitous sensor networks (USNs) enables massive amounts data to be collected in real-time. However, the application USN-based acquisition systems repetitive tasks typical floors can inefficient, because this may involve reinstallation sensors and repositioning loggers routers enable continuous transfer. To minimize cumbersome work, a modified method using...

The purpose of this study is to assess the structural performance hollow bridge columns with triangular confining reinforcement. proposed reinforcement details were equal conventional in terms required performance. also economically feasible and rational, facilitate shorter construction periods. Three cast-in-situ concrete three precast tested. behavior discussed their lateral load-drift relationship, cumulative dissipated energy, load-strain curves. nonlinear finite element analysis program...

With the increase in high-rise building construction, failure to consider constructability design phase can result huge wastes construction phase, as well losing opportunities for improvement. However, existing approaches reflecting rely heavily on reviews, resulting an inefficient decision-making process. Thus, by considering appropriate timing and detail levels when applying knowledge, this study proposes a process integrating activities related temporary work into concrete buildings....