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Re: Deep Slab

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The U.S. Army Corps of Engineers may have a better solution but would a one
foot thick (pending analysis) stainless steel channel compositely connected
to the concrete and spanning the critical length work?

                                                        Greg
-----Original Message-----
From: Siamak Komaie <skomaie(--nospam--at)motahari.ut.ac.ir>
To: seaint <seaint(--nospam--at)seaint.org>
Date: Monday, April 26, 1999 1:05 AM
Subject: Re: Deep Slab


>>
>>
>> In design of a box culvert with following dimensions:
>> -Length: 300 m
>> -Width:  30 m
>> -Height: 30 m
>> -Number of conduits: 2
>> -Thickness of bottom slab: 5 m
>> there is a problem in shear control of bottom slab.
>>
>> According to ACI R11.8, bottom slab should be designed and reinforced as
a
>> deep beam but large dimensions and long length causes construction
>> difficulties to provide required shear reinforcement.
>>
>> Is it possible to use shear reinforcement provisions of usual beams,
>> instead of deep beams, taking at a distance .15 span from face of support
>> as critical section for shear control?
>>
>> It should be noted the results of finite element analysis show that the
>> maximum shear force is occured at 0.15 span.
>>
>> Finally, is there anybody to know any references for design of deep slab?
>>
>> I really appreciate the helps.
>>
>> Best regards,
>>
>> S. Komaie
>>
>>
>>
>>
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