材料价格波动对典型住宅造价构成影响研究

Effect of material price changing on cost percentage typical residential building

分析了住宅建筑的造价构成,研究材料价格波动对土建造价构成的影响,以不同时期材料价格为基础,研究典型住宅楼造价构成。发现:多层砖混结构住宅楼(仅做一般装修),2004年第一季度定额综合基价费中,混凝土及钢筋混凝土工程分布的造价比例最高,达47.6%;其它各分布按造价比例从高到低依次为装饰工程、砖石工程、门窗及木结构工程、楼地面工程、建筑工程垂直运输等。与定额标准相比,混凝土及钢筋混凝土分布的比例提高了5%,其它分布工程均有所下降。工程造价对材料价格变化的敏感性取决于材料构成和材料用量。

In order to analyze the composition of the cost of residential construc tion, and the influence resulted from the material price of luctuation, a typical mul tistory residence building of Zhengzhou is chosen as the case. Then its total costs are accounted four times independently a ccording to Henan Building And Decorates Engineering Comprehensive Rate (2002), respectively with material prices published by the government in the second, third, fourth quarter of 2003, and the first quarter of year 2004 as the foundat ion. At last, the formation of the typical residence's cost and the influence on the building's cost from mater ial price change are analyzed. When taken the div isional project as unit to analyze the cost forming, the reinforced concrete cost the most. Take the first quarter of 2004 as an example, it takes up 47.5% (5 per cent over the original rate). The sensibility of total cost to material price depenels on its cost constitution, especially the amout of the material.