Scribd
Upload
24 views1 page

Structural Steel Design Guide

The document discusses structural steel design and provides examples of selecting tension members. It includes tables showing bolt bearing strengths and minimum bolt spacings and edge distances. An example problem is given to select a double-angle tension member to support a 46 kip tensile load over a 13.4 foot length using 3/4 inch diameter bolts and a 3/8 inch thick gusset plate. The solution involves checking the member for adequate gross area, radius of gyration, net area, and block shear capacity.

Uploaded by

sere
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
24 views1 page

Structural Steel Design Guide

The document discusses structural steel design and provides examples of selecting tension members. It includes tables showing bolt bearing strengths and minimum bolt spacings and edge distances. An example problem is given to select a double-angle tension member to support a 46 kip tensile load over a 13.4 foot length using 3/4 inch diameter bolts and a 3/8 inch thick gusset plate. The solution involves checking the member for adequate gross area, radius of gyration, net area, and block shear capacity.

Uploaded by

sere
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

STRUCTURAL STEEL DESIGN

Dr. Ammar A. Ali

Table I-E, part 4 shows the bearing strengths of various diameters of bolts.

The ASD Specifications recommends that the minimum distance between bolts be taken as
2
2 times the bolt diameter (and that 3 times the bolt diameter is preferred).
3

Table J3-5, Part 5 shows minimum edge distances for various bolt sizes and edge
conditions.

Example:

Select the lightest double-angle tension member for member BC, a web member in a light
truss, as shown in Fig. 2.15. The tensile load will be 46 kips. Use A36 steel. The length is
3
13.4 ft. fasteners will be -in.-diameter A325 bolts and will connect the double-angle
4
3
member to a -in.-thick gusset plate. Assume that the strength of the gusset plate will not
8
control.

3"
8
B

A
A
Holes for 34"
C diam. bolts
Section A-A

Fig. 2.15 Tension member design

Solution:

As was previously discussed, the design solution involves providing

1. Adequate gross area.


2. Adequate radius of gyration r.
3. Adequate net area An or Ae.
4. Adequate block shear capacity.

The required gross area, based on general yielding of the member, is calculated from

𝑃𝑃 𝑃𝑃 46
𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟𝑟 𝐴𝐴𝑔𝑔 = = = = 2.13 in.2
𝐹𝐹𝑡𝑡 0.60𝐹𝐹𝑦𝑦 060(36)

33

You might also like