| dc.description.abstract | Profits of Low Bidding Prices Engineering are very meager, therefore the average gross profit margin for Construction Co. is very low. For building construction, design and planning of each project is based on its budget. However, the hidden cost of project contract, tenders, construction specifications and design said is hard to accurately estimate.
Construction Co. profit in today are earning from management costs, the profit is 5% of total construction receipts. But, temporary workers cost, construction waste clearance and disposal fees is hard to budget and estimate, these temporary costs eat into almost all 5% gross profit.
Construction Co. itemize construction projects into sub-projects for negotiate with downstream companies to reduce payments. Nevertheless Construction Co. spend reducing payments on t temporary workers cost, construction waste clearance and disposal fees. Temporary workers and construction waste clearance and disposal fees are sharing with downstream companies. It could cause cooperation companies pressure and increase the engineering price. Hidden costs amount is the success factor of a management team.
This research we investigate14 building projects cases, time of cases are 2001 to 2011, kinds of cases building are single family home and high-rise building , floods of cases are 4-23 floods, total construction receipts of cases are NTD 150 million to 3.1 billion.
This research we compare total floor area with genaral labourer, concrete chipping worker, construction waste clearance and disposal fees expenses to estimate floor space ratio, assessing whether it is reasonable to spend, and explore the reasons. In addition, comparing with management fee to assess whether raising the management fees or utilizing management mode, in order to diminish the genaral labourer, concrete chipping worker, construction waste costs expenses .
This researth preliminary draw a genaral labourer total floor area of the total project amount, the type of building, the management costs no correlation of about 1.21% of the total construction cost. Correlation Concrete chipping worker costs and management costs, about 0.32% of the total construction cost. Construction waste disposal costs per ping cost, about 0.87% of the total construction cost. management costs related to the total constructiont cost, about 2.37% of the total construction cost.
We expect the hidden costs implication in Public Construction Cost Estimate System (PCCES), that is a referral for Construction Co managers in the valuation, the budget provision, and implementing constructions. | en_US |