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From the experimental results, the flexural capacity of the specimen with stiffener is found to be 10% higher than that of the specimen without stiffener.
Five half-scale specimens were tested under cyclic load: two control specimens under two levels of axial load, and three retrofitted specimens with varying dimensions of angles, different number and prestressing rate of cross ties, with and without stiffener plates in the angles.
Date shows that the failure mode of the flush end-plate joint without stiffener is usually dominated with the yielding of the bottom flange of steel beam near the supports, elements of the composite connection have different rate of temperature increase, and the axial force from restrained composite beam influences the rotational stiffness and moment capacity of joints.
A comparison of the ultimate capacity of the CFPFBs with and without stiffener reveals that the FE models simulate very well the flexural behavior of the test specimens and the difference of maximum load is found to be less than 10%.
Similar(56)
The results confirm that the stiffened panel has the same acoustic response as the skin without stiffeners at frequencies where the structural wavelengths are equal to the spacing between the stiffeners.
Next, the cross-ply laminated composite plate without stiffeners resting on elastic foundation is considered.
First, the cross-ply laminated composite doubly curved shell without stiffeners is considered.
The results show that HTFPGs (without stiffeners) have much higher critical moments than IPGs (with stiffeners).
In total, five columns without stiffeners and five columns with stiffeners were tested.
Four specimens, two with stiffeners proposed in this study and two without stiffeners, are tested under quasi-static cyclic loading.
It is concluded that mechanical models may be feasible only for sheeting without stiffeners in web and flanges.
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