1.The reinforcing bars required for seismic resistance should meet the following requirements:
The ratio of the measured tensile strength of the steel bar to the measured yield strength should not be less than 125
The ratio of the measured yield strength of the steel bar to the strength standard value should not be greater than 130
The total elongation of the reinforcement at the maximum force should not be less than 9%.
2.Investment Estimation - Project Proposal & Feasibility Study Stage.
Budget estimation - preliminary design, technical design stage.
Construction drawing budget - construction drawing design stage.
Bidding control price or bid reserve price, bidding ** - bidding stage.
Contract price - when the employer and the contractor sign a construction contract agreement.
Settlement price - during the implementation of the contract.
Final Settlement Price - Completion of the project or the end of the contract.
3.Polyurethane slurry has good permeability, low toxicity and can swell when exposed to water, and is suitable for water blocking and grouting in the fault mud section of medium, fine and silt layers and fine fractured rock layers. Sodium silicate slurry is suitable for fault zones with a fracture width of less than 1mm or a permeability coefficient of not less than 5*10-4ms. Single-liquid cement slurry and cement-silicate slurry are suitable for fault fracture zones and sand and pebble formations with a fracture width greater than 1mm or a permeability coefficient of not less than 5*10-4ms.
4.Profit = (fixed direct cost + measure fee + enterprise management fee) * 742%
Tax = (direct cost + equipment purchase cost + measure fee + enterprise management fee + regulatory fee + profit) * 9%.
Safety production fee = construction and installation project cost (excluding safety production fee itself)**15%）
5.The construction period of a project is 2 years, a total of 100000000 yuan is borrowed from the bank, the annual interest rate of the loan is 6%, the first and second years of the loan ratio are 50%, the loan is used in a balanced manner during the year, and only interest is calculated and no interest is paid during the construction period. When compiling the investment estimate, the total construction interest of the project is () 10,000 yuan.
6.Large and medium-sized repairs and technical transformations are generally carried out every 6-8 years or so after opening to traffic, and the cost of each major and medium-sized repairs and technical transformations is calculated according to about 15% of the investment in project construction.
7.The construction auxiliary fee includes the use of production tools and appliances, inspection and test fees, engineering positioning retest, project point payment, site cleaning and other expenses.
8.Spread reserve fee = total construction and installation cost * ((1 + annual cost growth rate%) n-1-1) n - design document preparation to the construction project start year + construction project construction period (years).
9.Advance payment for commencement: 5%-30% of the effective contract price (excluding daily labor, provisional amount, provisional valuation and other expenses), usually agreed to be 10%. 30%-80% rebate.
The prepayment ratio of engineering materials and equipment is generally not less than 60%, and the prepayment ratio of most highway projects is 70%-75%.
The quality margin is generally 3%.
The cumulative amount of liquidated damages for late delivery shall not exceed the limit specified in the terms of the special contract, which is generally 10% of the contract price.
10.Compensation period and cost for unfavorable material conditions, compensation period for exceptionally bad weather.
11.The basic preparation fee is based on the sum of construction and installation costs, land use and demolition compensation fees, and other construction costs, and is calculated at the following rates: 1The investment estimate of the project proposal is calculated at 11%; 2.The investment estimate of the engineering feasibility study report is calculated at 9%; 3.The design budget estimate is calculated at 5%; 4.The revised estimates are presented at 4 per cent; 5.The construction drawing budget is calculated at 3%.
12.The main control project refers to the inspection project that plays a decisive role in safety, energy saving, environmental protection and main use functions in construction projects.
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