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Structural Engineering and Mechanics Volume 16, Number 4, October 2003 , pages 441-468 DOI: https://doi.org/10.12989/sem.2003.16.4.441 |
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Sequential pattern load modeling and warning-system plan in modular falsework |
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Jui-Lin Peng, Cheng-Lung Wu and Siu-Lai Chan
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| Abstract | ||
| This paper investigates the structural behavior of modular falsework system under sequential pattern loads. Based on the studies of 25 construction sites, the pattern load sequence modeling is defined as models R (rectangle), L and U. The study focuses on the system critical loads, regions of largest reaction forces, discrepancy between the pattern load and the uniform load, and the warning-system plan. The analysis results show that the critical loads of modular falsework systems with sequential pattern loads are very close to those with the uniform load used in design. The regions of largest reaction forces are smaller than those calculated by the uniform load. However, the regions of largest reaction forces of three models under sequential pattern loads can be considered as the crucial positions of warning-system based on the measured index of loading. The positions of the sensors for the warning-system for these three different models are not identical. | ||
| Key Words | ||
| critical load; modular falsework; pattern load; load path; warning-system. | ||
| Address | ||
| Jui-Lin Peng; Department of Construction Engineering, Yunlin University of Science and Technology, Yunlin, 640, Taiwan, R.O.C. Cheng-Lung Wu; Department of Construction Engineering, Chaoyang University of Technology, Taichung, 413, Taiwan, R.O.C. Siu-Lai Chan; Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hong Kong, China | ||