scholarly journals SIMPLIFIED DESIGN FORMULA OF SLENDER CONCRETE FILLED STEEL TUBULAR BEAM-COLUMNS

1999 ◽  
Vol 64 (518) ◽  
pp. 141-146 ◽  
Author(s):  
Keigo TSUDA ◽  
Chiaki MATSUI ◽  
Takashi FUJINAGA
Keyword(s):  
Beam Columns ◽  
Design Formula

The In-Plane Ultimate Load of I-section Beam-Columns with Slender Web

1997 ◽  
Vol 1 (1) ◽  
pp. 11-22 ◽  
Author(s):  
Qian Gu ◽  
Shaofan Chen
Keyword(s):  
Residual Stresses ◽  
Analytical Method ◽  
Ultimate Load ◽  
Local Buckling ◽  
Test Results ◽  
Buckling Strength ◽  
Beam Columns ◽  
Plate Girders ◽  
Design Formula ◽  
Relationship Of

Similar to plate girders with slender web, a welded I-section beam-column does not fail when its web buckles. To take advantage of this post-local-buckling strength, this paper at first presents a method for calculating the M-P-φ relationship of I-sections with buckled web and residual stresses. The in-plane ultimate load of beam-columns with slender web can then be calculated by using this M-P-φ relationship. Nine eccentrically loaded specimens were tested to failure. The agreement between the calculated and test results confirms the validity of the analytical method. Furthermore, a simplified design formula is presented for predicting the in-plane capacity of beam-columns with slender web.

Simplified design formula of slender concrete filled steel tubular beam-columns

2001 ◽  
Vol 12 (1) ◽  
pp. 71-84 ◽  
Author(s):  
Jinan Chung ◽  
Chiaki Matsui ◽  
Keigo Tsuda
Keyword(s):  
Beam Columns ◽  
Design Formula

scholarly journals Development of Shear Resistance Formula for the Y-Type Perfobond Rib Shear Connector Considering Probabilistic Characteristics

2021 ◽  
Vol 11 (9) ◽  
pp. 3877
Author(s):  
Sang-Hyo Kim ◽  
Tuvshintur Batbold ◽  
Syed Haider Ali Shah ◽  
Suro Yoon ◽  
Oneil Han
Keyword(s):  
Yield Strength ◽  
Shear Resistance ◽  
Basic Design ◽  
Estimation Errors ◽  
Safety Level ◽  
Design Formula ◽  
Shear Connectors ◽  
Design Variables ◽  
Push Out ◽  
Reduction Factors

A design shear resistance formula for Y-type perfobond rib shear connectors is proposed with the various reduction factors, which can be selected depending on the target safety level. The nominal shear resistance formula is improved based on the systematic sensitivity analysis as well as the regression fit test based on 84 push-out test results, including 15 additional push-out tests to extend the application ranges and reduce the estimation errors, compared to the formula proposed in previous studies. Some design variables are additionally included in the proposed design formula: the yield strengths of rebar and rib plate. The basic design variables in the proposed design formula are (1) number of ribs and transverse rebars, (2) concrete compressive strength, (3) rebar diameter and yield strength, and (4) rib thickness, width, height, and yield strength. The application ranges of the basic design variables are recommended for the proposed design formula. The various shear resistance reduction factors are proposed based on the probabilistic ultimate shear resistance model of Y-type perfobond rib shear connectors. The proposed procedure may be recommended to develop the design formula for shear connectors with various shapes.

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