Comparison of Hainan Steel Installation Budget and Actual Installation

Hainan steel installation budget:

1, do the preparatory work before the budget

First of all to know the construction of steel structure, the specific process is how to pick each material, how to cut, how to construction

Non-destructive testing of H-beam butt welds require nondestructive testing, know which is the H-shaped steel plate, which is the H-beam web, wings require a 100%

After reading the quota, know what the subheadings are to learn the rules of the amount of engineering calculation, according to the fixed subheadings learned in learning rules, in the calculation rules to learn each sub-item in the calculation should pay attention to what

Can also be calculated according to the lifting of lifting the required specifications and the number of lugs, depends on technical measures in the steel structure prefabricated when the laying of what kind of platform, how much, in the calculation of the amount of these also incidentally calculated.

2, how to pick up the amount of engineering drawings and should pay attention to the problem

First of all, first look at the drawings from start to finish is complete, take a look at their drawings to be part of which Pa is the pipe gallery, frame, ladder, etc., in a careful look at the technical requirements of the drawings, as well as each page Marking, in the drawings from start to finish, if not understand what place to carefully combined before and after the look, until the see understand.

What is the column axis, what is the weak axis of the column, see beam and beam connection, beam and column connection, the combination of node diagram, but also clear some of the specific known, such as the graph of the specified node graph, Cantilever beam: and the end of the beam with the column or beam steel, and the other end of the beam articulated, the beam type / FL, said the left steel, beam type / FR, said the right end of steel

The following can be followed by the number of drawings to Gratula, although the order is a picture of a picture, but also in the Gratule when combined with the front and back, do not count as heavy nor exposed. A beam on a drawing with a fixed elevation plan should not be calculated in the elevation

Have this elevation do not calculate the amount of engineering in the elevation map, in the future small platform plan to calculate the amount of engineering can be, in the plan is relatively simple intuitive and will not reveal. In the plan does not calculate the cantilever beam bracing of the project, so in the elevation map to calculate the amount of cantilever bracing works.

3, how to apply the fixed budget and should pay attention to the problem

After the electronic document input, to facilitate future search and calculation more convenient. After the entry of the project to be calculated according to the different fixed sub-headings are summarized, the preparation of the main material table, the preparation of the main table in the previous calculation based on the amount of time multiplied by a loss, the loss rate in different parts of the Not the same, remember the steel partition is not depleted.

Precautions

So that a complete steel budget will be done. Be careful to do the budget, do not know where to open humbly ask. After the budget to do their own budget to do so the old master to trial, an open mind learn from their valuable experience.

Hainan steel structure virtual simulation construction and installation process

Hainan steel structure virtual simulation construction and installation process (effect chart).

1, 120 tons of crawler cranes will be installed on the platform steel canopy installation

2, erection of support frame, lifting the first string Zhang truss

3, lifting the second string of truss string, and the ball to connect the middle ball

4, lifting the third string Zhang string truss

5, lifting the fourth string of string truss

6, the installation of truss support and GZ2

7, lifting the fifth pin string truss

8, the installation of the sixth pin string truss

9, hoisting trusses between the tie rod and cable structure

10, lifting the next stringed truss string structure

11, the installation of the first string of trusses, the removal of the first truss support

12. Install the eighth string truss, remove the second truss support

13, the installation of the ninth pin string truss, dismantling the third truss support

14, the same token, the remaining string truss lifting completed

15, roof structure system is complete, the local cable force fine-tuning, removal of support frame

16, the platform shed steel structure installation is complete