The Design And Implementation Of The System Of Railway Engineering Works Bill Of Quantities

Relative study is made of rapid adjustability of the engineering bid list according to Railway Engineering Bid List Valuation Guide (Civil Engineering). Various technical means are synthetically adopted to gradually reduce the computation of the bid list valuation to a reasonable time period. Meanwhile construction enterprises are suggested to work out enterprise quota, so as to attain a proactive position in the tender offer, thus playing an important role in controlling enterprise cost in the construction process.This essay expounds the designing and realizing processes of the railway engineering bid list valuation system. In the process of expounding system implementation, studies are focused on the following points: 1, to use Power Designer to design data base system model; 2, to improve valuation efficiency through multithreading technique and re-computation signs; 3, to realize the principle of separation of quantity and price using material price downloaded from web service; lastly, to realize online update of the valuation system software via CSocket class of Visual C++.