Construction Cost Analysis Of Steel Structure Residence And Reinforced Concrete Residence In Gansu Province

The construction cost of steel structure housing is an important factor that affects and restricts the industrialization development of steel structure housing.Firstly,taking the construction cost of reinforced concrete structure housing and steel structure housing of a project in Lanzhou New District of Gansu province as an example,through the analysis of main structural design differences,unilateral flat rice cost analysis,key sub-item engineering quantity analysis,key sub-item engineering flat meter price analysis compare and analyze the various costs of the unit project to find out the key factors affecting the construction cost of steel structure residential buildings.the structural design is mainly the basic engineering and the above-ground steel structure engineering;the key sub-projects are mainly fireproof coatings,exterior wall decoration integrated panels,steel-clad beams,steel columns,sand aerated walls,hoisting machinery and turnover materials;the main expenses of the project are material and machinery.Then combined with the actual situation of the construction site and the cost management experience of many years of construction projects,choose a reasonable contracting and delivery model;strictly manage the contract;control labor costs,materials,machinery and subcontracting fees;improve relevant technical standards;apply new materials new technologies and other aspects have proposed rationalization to reduce the construction cost of steel structure residential buildings.Finally,it is concluded that the structural form and construction area of steel structure houses in Gansu province are different,and the cost increments of various expenses are different.overall,the cost increase of steel structure houses in Gansu province is 500-600yuan/m~2,among which the cost increase of labor and machinery costs is large,and the cost increase of material costs is 400 yuan/m~2,the cost increment of indirect fees,profits and fees will vary depending on the overall cost of the project and the pricing documents.for steel-structured houses,except for the increase in material and machinery costs,the rest of the costs have been reduced to varying degrees.considering the cost-effectiveness,environmental cost-effectiveness,energy-saving cost-effectiveness and cost-effectiveness of steel structure residential buildings,the cost increase of steel structure houses in Gansu province is about450yuan/m~2,as long as the initial investment cost of steel structure houses is rationally viewed and the management of the steel structure market is strengthened,the steel structure houses in Gansu province can be developed rapidly.