Tell today tell dark post.
Groovy dark column never mind is good tell, groovy practice
Additionally I had seen 3 kinds a little " special " dark column:
Muscle of band of ① AB group kind:
As above graph, interval of muscle of AB group band is decorated, span of muscle of the band in the budget is decorated according to the design, but in forgetting a picture (B) group lacing wire. Span of lacing wire of this kinds of post is band muscle commonly duple. General design closes band muscle span is 200, the AB that pull a hook combines span for 100. Omit easily here, must notice.
② cuts force wall level muscle plan enters dark column Ⅰ kind:
Glance carefully first blueprint:
As above graph, cut the way with force wall and dark perpendicular column, cut force wall level muscle plan enters muscle of dark column band, here dark column is only the band muscle that pulls a hook to did not close.
In the attention in the budget muscle of this direction band does not want plan into.
But do you feel to there is a problem? Had seen in the spot usually " bald " post?
We need the function of muscle of band of the post below the analysis here:
① : Structural function, the force with tie transverse column (dark column tells a likelihood to suit not quite so, because be in the wall. ) here, dark column is in wall shears force, have hardly " transverse cut force " so band muscle is done not have understandable also.
② : Tectonic function, in page of atlas 16G101-1 P59 left next horn, region band muscle adds colligation overlap close. Atlas detailed sees figure below:
So, when the budget that build a model, post band muscle does not input be a mistake directly. Should not input software of band muscle moment region band muscle adds imponderable overlap close.
This is two hole, be not fallen into!
③ cuts force wall level muscle plan enters dark column Ⅱ kind:
Still see a picture first:
See a picture carefully.
Have why be distinguished?
This graph cuts force wall to carry horizontal muscle is the U that close model, a piece of graph is regular wall method in front.
This graph software is not calculated, regular method, software can calculate.
This is a hole.
Hole discovered, how be solved?
Pursue as follows, will wide couplet amounts to software 10*d of this node termination changes 10*d+ to build receive length.
