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Identifying Factors Affecting Labor Productivity for Residential Fire Protection System Installation

공동주택 소방설비공사의 노무생산성 영향요인 분석

  • Oh, Jae-Hoon (Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Dae Young (Department of Architectural Engineering, Pusan National University) ;
  • Kim, Jae Sik (Department of Architectural Engineering, Pusan National University) ;
  • Huh, Young-Ki (Department of Architectural Engineering, Pusan National University)
  • Received : 2017.05.19
  • Accepted : 2017.06.16
  • Published : 2017.08.20

Abstract

It is generally acknowledged that subcontractors mostly allocate their resources to project relying on their previous experiences, instead of data-based judgement. Installing residential fire protection systems, typically performed by subcontractors, is labor-intensive job and its schedule is frequently changed as the contractor master schedule is often revised. Nevertheless, it is still important for subcontractors to make much effort to improve labor productivity through a thorough planning for scheduling and resource allocation. The purpose of this study is to identify significant factors that affect labor productivity for residential fire protection system installation. For this purpose, 50 potential factors that may affect productivity were identified based on literature reviews and expert interviews. These factors were further explored using correlation analysis and ANOVA test. The results showed that the labor productivity is significant impacted by various project characteristics.

소방설비공사는 건축사업 현장에서는 주공종이 아닌 하위공종에 해당되며 전문건설업체들의 영세함 등으로 인해 정량적인 실적 생산성자료에 기반한 공정관리가 거의 이루어지지 않고 있는 실정이다. 공동주택 소방설비공사의 현장생산성에 영향을 미치는 주요 요인들을 도출하기 위하여 문헌연구와 전문가들과의 인터뷰 및 설문조사를 실시하여 85개의 자료를 수집하였다. 수집된 자료를 분석한 결과, 회사의 시공능력, 층수, 기성금지급, 세대형태 등을 포함하는 36개가 중요요인으로 밝혀졌으며 골조방식, 휴일작업, 돌관공사 및 야간작업의 유무 등은 상대적으로 중요하지 않은 것으로 나타났다. 또한 응답자의 현장 위치 및 규모, 경력 등의 '일반사항'과 주요 영향요인들과의 상관성을 정량적으로 알아보기 위하여 상관관계 및 ANOVA 분석을 실시한 결과, 수도권에서 지방으로 갈수록 '회사의 시공능력'이 생산성에 중요하며 지방의 공동주택 건설현장은 본사의 지원능력과 경험이 중요한 것으로 밝혀졌으며, 수도권에서 지방으로 갈수록 '회사의 시공능력'이 생산성에 더 중요하게 영향을 미치는 경향이 있는 것을 알 수 있었다. 이러한 연구의 결과는 생산성 관리를 통한 원가절감과 소방설비의 안전성을 확보하기 위한 합리적인 공정계획과 관리를 위한 기초자료가 될 것으로 기대한다.

Keywords

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