Skip to main content
Log in

Numerical Modeling and Mechanical Analysis of Combined Connection with Bolts and Welds

  • Published:
Strength of Materials Aims and scope

In this paper, a detailed finite element model of the combined connection with bolts and welds is elaborated to analyze the failure mode and bearing capacity of this connection under shear load. The main focus of this study is the evaluation of the coupled behavior of bolts and welds. Failure modes and load sharing are analyzed via several finite element numerical tests for different weld sizes. Varying the weld height and length, bearing capacity utilization rates of bolts and welds are also assessed. The results obtained indicate that the weld contribution to tensile load-bearing capacity is always dominant in the combined connection with bolts and welds. As the weld-to-bolt strength ratio (the ratio of the design value of the weld joints to the bolt joints’ bearing capacity) is about 1.0, the welds and bolts in the combined connection can work together with a good performance. With the increasing weld-to-bolt strength ratio, the load share of the bolts decreases. When the weld-to-bolt strength ratio exceeds 2.0, the contribution of bolts in the combined connection is negligible.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others


  1. Steel Structure High Strength Bolt Connection Technology Procedures, MOHURD (2011).

  2. ANSI/AISC 360-10. Specification for Structural Steel Buildings, AISC, Chicago, IL (2015).

  3. Y. J. Shi, L. Wang, Y. Q. Wang, et al., “Finite element analysis of the combined connection with bolts and welds,” Build. Sci. Res. Sichuan, No. 2, 100–104 (2013).

  4. J. J. Wang, Y. J. Shi, Y. Q. Wang, et al., “Finite element analysis on the bearing capacity for connection of sharing on a shear load by friction-type high-strength bolts and side welds,” Build. Sci. Res. Sichuan, No. 1, 15–19 (2013).

  5. Y. Q. Wang, Y. Wen, and Y. J. Shi, “Finite element analysis of the loading capacity of co-use of weld and bolt joint for reinforcement,” Steel Constr., No. 4, 23–27 (2006).

  6. D. X. Zhang, Z. X. Hou, and L. Sun, “Nonlinear finite element analysis of shear bearing capacity of joint with combined bolts and welds,” Steel Constr., No. 8, 9–13 (2011).

  7. Q. Chen, F. X. Li, J. Q. Lei, et al., “Tensile capacity and design method of combined connections with bolts and welds,” Eng. Mech., 33, No. 1, 112–121 (2015).

    Google Scholar 

  8. T. J. Manuel and G. L. Kulak, “Strength of joints that combine bolts and welds,” J. Struct. Eng.-ASCE, 126, No. 3, 279–287 (2000).

    Article  Google Scholar 

  9. Y. Guo, X. J. He, and G. L. Liu, “Research on connecting behavior and process of weld-bolt hybrid joint,” Steel Constr., No. 3, 50–55 (1996).

  10. L. Shenyang, “The bearing capability of the combined connection with bolts and welds,” Ind. Archit., No. 6, 24–27 (1985).

  11. Specification of High Strength Bolts with Large Hexagon Head, Large Hexagon Nuts, Plain Washers for Steel Structures, AQSIQ (2006).

Download references


This work was financially supported by National Science Foundation of China (51279206).

Author information

Authors and Affiliations


Corresponding author

Correspondence to J. S. Ju.

Additional information

Translated from Problemy Prochnosti, No. 6, pp. 152 – 161, November – December, 2016.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liu, M.S., Li, C.A., Huang, J.R. et al. Numerical Modeling and Mechanical Analysis of Combined Connection with Bolts and Welds. Strength Mater 48, 862–869 (2016).

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: