damo74, it depends on the special case. have you an sketch ? in general it is possible to judge the stiffness
of an timber roof. it may be not the best solution, considering the in plane deflections.
i sure did it in steel structures with braced roof planes.
to better understanding, do a sketch
in general we have to design an non-kinematic system.
in your case there are several ways to satisfy this:
1. if the roof has shear-stiffness, then it distributes
the forces to the 3 remaining wall.
2. if the roof has not enough shear-stiffness (as usual in steel-structures) you may...
hi,
are the long sides free edges ? what about the opening ?
in general, flared edges have in this case an very little
effect because the main trajectories of the moments are not changed, they dont spread !
hi,
i have a report in german exactly about that problem.
there are 2 possible states of equilibrium for uplift:
1. if the anchors are not pretensed an long enough, the anchors bow in the direction of the resulting force-vector
2. if the anchors are strongly pretensed, they belong straight...
it has nothing to to with the number of bolts.
the column is not infinite small.
so when there is an pressure force and a base plate
there is an resisting moment at the base of the column....
hi,
this is an construction quite common.
the portal frame gets the horizontal load at the
height of its rafter
this means that for global analysis you just connect the
portal frame at that point to the other structure
the other connections at the column are to avoid
problems of stability...
amir,
start with a simple model, for example two rectangulars
braced by crossed tension diagonals.
elevate the middle-line so that there is an high slope roof and calculate the forces.
every force in the diagonals can converted in shear-forces.
calculate the displacements and decide if the...
