Dynamic performance test and estimation of reinforcement effect on a workshop after column-cut supported by joist

Abstract

The reinforcement effect of a reconstruction scheme for a steel factory building was investigated using finite element method and dynamic performance test. The workshop concerned is a portal frame structure with four spans and two slope roofs, of which ten columns need cutting for expanding span. The design and reconstruction project of column-cut supported by joist were introduced, which includes column reinforcement, connection rebuilding between brackets and crane beams, and the changing of rigid joint into hinge joint. The construction scheme was put forward in the light of the characteristics of the reinforcement and reconstruction. Spot test of dynamic performance on the workshop and comparison with theoretical analysis results show that the column-cut supported by joist design is effective and the reconstruction project is successful.

Keywords

steel factory building / column-cut supported by joist / dynamic test / modal analysis / finite element analysis

References

[1] Zhang Guiqin. The design and construction of drawing out of columns for large size beam[J]. Shanxi Architecture, 2003, 29(1): 76-77.

[2] Kishi N., Chen W. F. Design aid of semi-rigid connections for frame analysis[J]. Engineering Journal, 1998, 30(3): 90-107.

[3] Nesalsov O. Column stability increasing on steel structure reconstruction[J]. Stability of Steel Structures, 1991, 5(3): 145-152.

[4] de Lorenzis L., Nanni Antonio. Bond between nearsurface mounted fiber-reinforced polymer rods and concrete in structural strengthening[J]. ACI Structural Journal, 2002, 99(2): 123-132.

[5] Sherbourne A. N., Bahaari M. R. Finite element prediction of end plate bolted connection behavior (II): Analytic formulation[J]. Journal of Structural Engineering, 1997, 123(2): 165-175.

[6] Sherbourne A. N., Bahaari M. R. Finite element prediction of end plate bolted connection behavior (I): Parametric study[J]. Journal of Structural Engineering, 1997, 123(2): 157-164.

[7] Sherbourne A. N., Bahaari M. R. 3D simulation of end-plate bolted connections[J]. Journal of Structural Engineering, 1994, 120(11): 3122-3136.

[8] Feng Yanxia. Practice of column withdrawing works for machinery plant building[J]. Mechanical Engineering and Automation, 2004, 3(2): 75-79.

[9] Song F., Jing J., Cao Tiejian. Construction and monitoring of cutting columns supported with bracket[J]. Industrial Construction, 1995, 25(5): 16-19.

[10] Li Yuanping. The Firm-Beam-Move-Pillar method for reformation of old workshop buildings[J]. Journal of Jinan University (Natural Science), 2003, 24(3): 66-69.

[11] GB 50011-2001. Code for Seismic Design of Buildings[S]. 2008, Beijing: China Architecture Industry Press.