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[ Last edited by lkys on 2010-9-5 at 14:24 ]

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lkys

½ð³æ (ÕýʽдÊÖ)

1 Engineering situation

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wypward(½ð±Ò+1):ÐÁ¿àÁË 2010-09-06 14:38:08
Music Laboratory Building in Independent of a college campus is an integrated building; total building area is 13027.8m2, include the North Building, South Building and Hall. Hall is one of them to music teachers from both shows and meetings using the features of the large Class A theater, has auditorium1378, formed main building (hall) and supporting building. main building is 5-story at local, Total building height is 20.3m(top elevation on stage Area).as the hall construct is complex and cure, Internal open and large span, so taking reinforced concrete frame structure. Structural design life is 50 years, the security of structure is grade one, the category of seismic fortification is B, Seismic intensity is 7 degrees£¬earthquake resistance measures consider 8 degrees by improving 1 degree. Floor is on-site£¬Seismic level of frame is grade two.
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2Â¥2010-09-05 19:28:41
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3Â¥2010-09-06 14:54:09
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lkys

½ð³æ (ÕýʽдÊÖ)

2 THE CHOICE OF GALLERY STRUCTURE

The average span of Balcony (auditorium at second floor) is 32m, it is the span arch structure (Figure 2), taking into account the requirements of the back layer audience's attention, the high of the beam is limited under balcony, and enhance the story height impacting cost of structural larger. Use of light steel structure can effectively increase the clearance, but require a higher fire grade, moreover, the steel and concrete structures connecting is very complicated, so taking prestressed beam in the building. As previously discharged to the rear there is a height difference, lead the shape of the surface to form a space, where is difficulty and emphasis in design.
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4Â¥2010-09-06 15:09:01
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lkys

½ð³æ (ÕýʽдÊÖ)

Curved or straight prestressed beam

Using straight prestressed beam, the design and construction are relatively mature, but the two ends of beam cross section would increase lot for connecting the surface, beam contour and step are inconsistent, leading to the top of beam elevation must be reduced. And the visual effect is not good; the line beam is very stiff in the oval hall.
Curved prestressed beam contour is same with step; the top beam is flush with step, increase the clearance level of the auditorium in first floor, integration with oval hall. However, Arc beam will produce coupling of bending and torsion under load. Arrange of prestressed tendons are more complex than the linear.
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5Â¥2010-09-06 15:25:13
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