I heard that the installation cost of good air-conditioning equipment is very large amount of money though it can not to be seen from the surface. Oppositely, if you want to save the expenditure, first of all, it is efficient to omit the air-conditioning equipment. 

When the public office builds the building, at first, all the needed expenditures are estimated. However, when becoming the final stage of the budget demand, the budget is often uniformly reduced. Therefore, the air-conditioning equipment is reduced in that case.

This was a cause that effective of air-conditioning is bad. 

The floor part becomes the first victim in case of the exhibition hall as well as this. But the strength of the floor gaining the weight is an element connected directly with the vital question for the exhibition hall. 

The floor in old HARUMI fair ground only piled up concrete on the ground. The limit of gaining the weight of 1 �u has been officially decided 5t. As a matter of fact, we did not worry so much about that. 

However, it is usual in the exhibition hall of the latest type to install equipment underground variously. It becomes a structure that the floor is supported in the beam. 
Therefore, strength of the floor becomes very important. 

Of course, when it is an exhibition hall in innings, strength in the ground of the legs of the floor is also considerably important. 
Tokyo Big Sight was able to maintain ground strength. At that time, land was deliberately improved because there was abundantly the capital in TMG.  Even the point with very deep underground structure of the building was tightly made. Gaining 5t per 1 �u became possible there considerately. 

Various commodities are exhibited in the exhibition hall. The heavy load like the large-scale print machine crowds occasionally. 

When strength of the floor is an insufficiency and the heavy load is chosen,  you should first choose the carrying route, and choose installed place for bringing in. You will worry. 

I think that it is a big problem in case of the Not sufficient like present. (Supplementation: However, 5t per 1 �u is the weight by which the water tank of the height of 5m is brought in 1 �u, and such the heavy one is never exhibited.)

Similarly, when the exhibition hall of two stories is built, it is necessary to note load limit in the second floor part. If possible, I think that you should build all the exhibition halls on the first floor. 

By the way, when the structure of two stories is set up in the exhibition hall,  you have to drive the stone bolt and fix it on the floor.  When the exhibition ends, the bolt is burnt off and the structure is withdrawn. Naturally, the floor is damaged. 

Therefore, it is necessary to peel off the upper part and repair the floor in the exhibition hall once every several years. So in case of the stone bolt is used, the repair expenditure in the future must be collected from the exhibition company. 

→next page