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Steel Web Plate Connection to AS4100's banner

Steel Web Plate Connection to AS4100

Verified by the CalcTree engineering team on September 23, 2024

This calculator designs a web plate connection, performing the critical required checks: bolt shear, web (cleat) plate shear and bending, weld combined shear and bending, supported member (beam) shear; and punching shear of the supporting member (column). A web plate connection is typical of a beam to column flange connection that acts as a pin support for the beam.
All calculations are performed in accordance with AS4100-2020.
Design checks for a web plate connection are not explicitly stated in AS4100. The design methods presented below are based on Design Guide 3: Web side plate connections published by the Australian Steel Institute (ASI).


Results Summary

Summary 
Design Check
Parameter
Utilisation
Status
Cleat thickness
t,limit = 7.7 mm
0.78
🟢
Bolt shear
Zb ΦVf = 47.9 kN
1.04
🔴
Weld check
ΦVa = 81.8 kN
0.61
🟢
Beam shear
ΦVv, web = 162.4 kN
0.31
🟢
Cleat shear
ΦV, cleat = 43.1 kN
1.16
🔴
Can’t display the image because of an internal error. Our team is looking at the issue.


Calculation

Technical notes

1. Properties

1.1 Supported Member Properties

1.2 Supporting Member Properties

1.3 Cleat Plate Properties

1.4 Bolt Properties

1.4.1 Bolt size



Bolt_size
:M20​



  1. 1.4.2 Number of bolt rows


np
:3​




1.4.3 Bolt category



Bolt category
:8.8/S​



fuf
:830​




1.4.4 Bolt shear capacity



Threads?
:Threaded​




phi_Vf
:92.6​




Cl 9.2.2.1


1.4.5 Bolt spacing

The code specifies minimum

(Clause 9.5.1) and maximum

(Clause 9.5.3) bolt spacings. In summary, where

is the bolt diameter:

sp, min=2.5dfs_\text{p, min} = 2.5 d_f
In non-corrosive environments, where

is the thickness of the thinner ply connected:

sp, max=min⁡(32tf,300 mm)s_\text{p, max} = \min(32 t_f, 300 \text{ mm})
In corrosive environments:

sp, max=min⁡(15tf,200 mm)s_\text{p, max} = \min(15 t_f, 200 \text{ mm})
However, in practice there exists typical spacing. For example, the typical spacing for M20 bolts is 70mm.


Corrosive_environment
:N​




sp
:70 mm​




sp_min
:50 mm​




Cl 9.5.1


sp_max
:256 mm​




Cl 9.5.3


Spacing check
:sp,min ≤ sp ≤ sp,max 🟢​




1.4.6. Bolt edge distance



Bolt_edge_distance
:35 mm​




Min bolt edge
:30 mm​




Table 9.5.2


Max bolt edge
:96 mm​




Cl 9.5.4


Edge check
:min ≤ bolt edge ≤ max 🟢​




1.5 Weld Properties



2. Design Actions



V
:100.0 kN​




V*d
:100.0 kN​






3. Design Checks

The below design checks follow the procedures outlined in Design Guide 3: Web side plate connections.

3.1 Column punching shear



t_limit
:12.29 mm​






Cleat thickness util
:0.65​



Cleat thickness check
:N/A for open sections ⚪​






3.2 Bolt shear check



Zb
:1.941​






Ze
:0.848​






a_exi
:35 mm​






a_exb
:35 mm​






a_eyi
:35 mm​






a_eyb
:59 mm​





V_eh
:114.8 kN​






V_ev
:114.8 kN​






ΦV_df
:92.6 kN​






ΦVb
:179.7 kN​






Bolt util
:0.56​



Bolt check
:V*d ≤ ΦVb 🟢​







3.3 Welds check



lw
:210 mm​



2lw Φvw
:419.1 kN​






ΦVa
:225.0 kN​






Weld util
:0.44​



Weld check
:V*d ≤ ΦVa 🟢​






3.4 Beam shear check



ΦVv, web
:473.9 kN​






Beam util
:0.21​



Beam check
:V*d ≤ ΦVv, web 🟢​






3.5 Cleat check



di
:210 mm​






ΦVc
:211.7 kN​






ΦVd
:404.1 kN​






ΦV, cleat
:211.7 kN​






Cleat shear util
:0.47​



Cleat shear check
:V*d ≤ ΦV,cleat 🟢​






Related Resources

  1. Fillet Weld Group Calculator to AS 4100
  2. Bolt Group Calculator to AS 4100
  3. Steel Beam and Column Designer to AS4100