1, the influence of quality on cost

Total quality cost includes quality failure cost and quality assurance cost.

The lower the quality, the greater the loss of unqualified quality, that is, the greater the cost. Conversely, the lower the cost. Quality assurance expenses refer to the expenses incurred by taking relevant safeguard measures to ensure and improve quality, such as purchasing equipment and improving testing methods. The greater the expenditure, the more reliable the quality assurance, and the lower the quality.

2. The influence of construction period on cost

Every project has an optimal construction organization. If the construction period is urgent, it is necessary to increase the investment of construction force and take certain measures to catch up with the work, such as overtime work, high-priced materials, high-priced employment of labor, unprepared use, etc., which will inevitably increase the project cost.

If the schedule is less than the necessary time limit, the cost will increase obviously, and the time of letter arrangement will be longer than the cost of optimal arrangement. He wants to increase the hours of special work at the lowest cost.

When calculating the lowest cost, we must determine the actual duration distribution state and the closest achievable lowest cost. If this is not limited, the cost will increase with the change of construction period.

3. The influence of price on cost

In the design price link, the impact on the cost is mainly reflected in the construction drawing budget, which depends on the price of the design scheme and directly affects the project cost. Therefore, when compiling the construction drawing budget, we should make a good price forecast, especially estimate the price increase of building materials, equipment and labor costs due to inflation, so as to accurately grasp the cost level.

4. The influence of management level on cost

(1) The estimated cost is low. If the cost of land acquisition or demolition greatly exceeds the plan, the cost will be affected.

(2) Due to the shortage of funds or problems in the supply of materials and equipment, the project progress is affected, the construction period is extended and the project cost is increased.

(3) Losses caused by Party B's decision-making mistakes.

(4) Changing the design may increase or decrease the cost, but it will often affect the construction progress and adversely affect the cost control.