Exterior Wall Heat Insulation Project Risk Management Of Qingdao Xiaogangwan Residential Project

Exterior Insulation technic is emerging in recent years for the realization of the construction of energy-saving technology to reduce the energy consumption of buildings, to achieve emission reduction of the national policy of energy conservation is of great significance. As the technology appears in a shorter time, the system for a variety of composite materials from the design, materials, construction higher, after a long-term durability of the use of the test. Owners in the choice of insulating concrete forms, materials manufacturers and construction unit of the thermal insulation system must be the quality of risk assessment, to ensure the safety of insulation works, apply and durable.In this paper, Qingdao Xiaogangwan residential projects as the background on the exterior insulation works in the design, construction and the quality of risk management practices. Selection in the design stage for high-rise, high-level, multi-storey three different height of the building, external thermal insulation composite systems based on polystyrene panel affixing and bricklaying with mineral binder and expanded, polystyrene granule material for adhesion and making level, paste thin plastering Extrusion board systems . external thermal insulation composite systems based on steel mesh polystyrene panel in cast-in-place concrete form, external thermal insulation composite systems based on polystyrene panel without steel mesh in cast-in-place concrete form, external thermal insulation composite systems based on spraying rigid polyurethane foam, external thermal insulation composite systems based on spraying rigid polyurethane foam, spray polyurethane system six different characteristics of the thermal insulation system to the insulation effect, bonding reliability, cracking, construction feasibility, the performance of the five fire Indicators for the criterion of the established level of plans. The expert survey points, the establishment of judgement matrix, the use of AHP, to quantify each factor affecting the quality of the project. According to AHP calculations, the quantification of risk factors to sort and select the smallest risk of the external walls of thermal insulation system. And against the choice of thermal insulation system design structure to identify risk factors, the corresponding risk management practices. Through the above methods, and effectively avoid the risk of the design stage to ensure design quality.During the construction stage, from the thermal insulation system of materials and construction of two aspects of risk management to identify. Insulation material on each of the specific performance indicators, the establishment of sample selection processes and materials tickets routed to legal inspection system, risk reduction. During the construction phase management, thermal insulation systems have different standards process, to standardize construction. And formulate and improve the inspection and check system, strictly control the source of risk to ensure that the external walls of the insulation project quality.Through the design phase and construction phase of the risk identification, for different risk factors, the corresponding risk management practices. Through the pre-control risk, reduce design and construction phase of the quality of risk, and ensure project quality.This paper presents a more complete risk management theory based on the exterior insulation. system of risk assessment methods. Can be for the relevant project risk management methodology to provide a reference.