【 Weak current College 】 project clearing summary (3)

Second, engineering calculation section
1. structural columns reinforced in construction, is in the top and bottom column of the beam to reserve doweled, wait until the structure column construction, structural column of steel reinforced with upper and lower reserved respectively lap on the can, ask me, is not to put up in the middle of the bar, the reserved string bars separate, calculation by three sketch? or can together once calculated?
Answer: you can close together, this is the frame structure is filled with wall structure column, normally software a lap length calculation, to deal with this kind of structure column, you can set component properties in lap length adjustment for the two lap length value, you have resolved the problem.
2, roof angle of 55 degrees, roof and eaves mouth up to 11 metres of altitude difference, sloping roof exterior scaffolding height calculation by rule to roof vents also reasonable?
A: the roof height exceeding eaves 1.2 m, the height calculation by rule to eaves estuary is reasonable height exceeding 1.2 m, should press the eaves height difference of 1/2 height to the height of the eaves.
3. does the landing floating window is calculated area?
A: on the building area of computational problems, file, many did not fully explain that, but the spirit of the already very clear: to regulate the content not expressly, in principle, can be judged is building an internal space, or external space, or there is no permanent cover half the retaining of outdoor space. Which, in the case of internal space demand area; in the case of external spaces need not be meter area; in the case of half-outdoor space, design and utilization of area calculation, design and utilization of the area is not calculated.
But for the floating window, parts of building management should also have the appropriate interpretation of the file. Here's an excerpt of the regulation, Nanjing-Nanjing (2006) 133 characters, the text in a paragraph, for everybody to understand the reference to:
The floating window and interior floor height difference reached the area calculation not 0.45m; height difference is smaller than the height of the window 0.45m, and reaches the equivalent of landing 2.20m floating window, or all of the area; height difference is smaller than the window height is less than 0.45m, 2.20m half the area of the meter; floor-height calculation of area-wide 2.20m, calculated in the following 2.20m half area.
4, list specifications in the first floor area refers to those parts. Balcony and balcony on the first concave floor call? this is the first layer?
A: according to GB/T50353-2005, first floor area should be the external wall-feet above the level area surrounding structure. Here the concept of a support structure, defined in the specification as a "combined with the architectural space surrounding walls, doors, Windows, etc.", balcony bar is not in the building envelope. Only in accordance with the calculation rule by the balcony half accounted for in the first floor of building area. Standard balcony of calculation rules are described as follows: "balcony of a building, whether it is concave balcony, balcony, closed balcony, not closed balcony are its horizontal projection area of half the calculation area. "So calculated first floor area, balcony partially still calculating area by 50% and accounted for in the first floor of building area.
5. the provisions of the new specification: balcony or closed not closed, according to the projection area of half meter! but in drawing was overhanging balcony Department marked the kitchen, what should I bear in this area?
A: calculation specification for balcony area is considered from the point of using the function. The specification on the balcony of the explanation is: for users to carry out activities and drying clothing of building space.
In the design specification, the kitchen is not set on the balcony, so if the design drawings marked to the kitchen, which is a kitchen design using features, you should press the kitchen of the calculation rule calculation.
6, in Henan Zhengzhou dashiqiao West a community, 12-story high-rise, basement design have an overhead layer, and a height of 3 metres, surrounded and roof are concrete structures, overhead layer of primer that is the Foundation for full. But this is no aerial layer entry. now have differences:
Advice 1: this should be an aerial layer construction area;
Advice 2: the aerial part of belonging to the base layer, similar to the box Foundation, should not be calculated with a construction area of what exactly does the PCT?
Answer: If the calculation area needs from the use of the function and structure, because of its design all around and top are concrete structure, if it can be used for the production of life of people, you should calculate the whole area.
7. plate reinforced distribution rib is plus 180 hooked? generally is not, however GB50204-2002 also provides bar end must be 180 hooks, where can I find relevant basis?
A: GB50204-2002 section 5.3.1 stipulates: reinforcing steel bending force HPB235-reinforced end hooks should be 180 hooks, say stress bars, plate distribution rib is not a force of structural steel, is reinforced. It is not contradictory.