Sentence examples for tension bolt from inspiring English sources
Figure 10a shows the distribution of internal forces in tension bolt for model FE12Po in which initial bolt pretension is ignored.
The plastic hinges develop at the top of the tension angle's filet and in the area around the tension bolt head of the vertical leg.
It is apparent from Fig. 10 that prying force is also introduced in the tension bolt in application of pretension force in bolts of model FE12.
This type is considered to cover the case in which yielding occurs simultaneously in the top angle and the tension bolt and prying action contributes to the yielding.
The stress-deformation results of the FE analyses show that yielding occurs initially at the top of the tension angle's filet (Fig. 6), and is then propagated in the area around the tension bolt head.
Open image in new window Fig. 10 Distribution of forces in tension bolt.
Resisting forces of tension bolts for mechanisms Type I, Type II and Type III, respectively.
No plastic hinge is assumed to develop in the top angle, and connection failure occurs only by complete plastification of tension bolts.
However, it is difficult to estimate the prying force working on tension bolts because bolt tensile force consists of three components: shear force at top angle's vertical leg, contact force due to bolt pretension, and prying force.
In particular, this study focuses on the phenomenon herein indicated as secondary prying, which is related to the additional forces that are introduced into the tension bolts due to significant bending of the column flange.
This study provides guidelines for engineers to account for the additional forces induced in the tension bolts and for the maximum rotational capacity demand in the connection which are required for seismic analysis and design.
