The Analysis And Application For Human Induced Incentive Loads

There is an increasing number of passenger foot-bridge and large-span floor with the development of urban municipal construction, vibration caused by walking incentive load, which brings inconvenience to human beings and influence the fatigue safety of structure. We should take a further consideration if there is any need to resolve it. Indeed, it is essential for us to take a deep research of the character of walking incentive loading curves.We do have little engagement in study of walking incentive loading compared to comprehensive one previous.It is absolutely necessary and benefits engineering a lot to that take walking incentive load into research nowadays. The effort to it as follows: 1.Summarizing the current resulting of walking incentive research and compare advantages and disadvantages with that previous. And analyzing the result of it. Pointing out its necessity. 2. Redefine and summary the concept of WIL compared to comprehensive one previous.We aim to interpret and demonstrate the concept to make it be understood easily, and also introduce some typical experiments to provide reference.3.Concluding the basic Gait information of walking incentive load according to The footprint method. analyzing its responsible rules and analyzing detailed mechanics character while walking property. 4.Collecting 900 groups of walking incentive load data under 3 walking conditions(normal, slow and fast speed walking);Analyzing basic feature of walking incentive load curves towards X,Y,Z directions respectively; We would obtain walking incentive load simulation curves in constant walking conditions according to integrate the data; analyzing the curves in aspect of momentum and combining that of simulation curves and principles of gravity center of human body in X,Y,Z directions while walking.Deducing model formula of walking incentive load curves under different conditions as well as analyzing its property in the laboratory environment. Analyzing the comparison of theoretic and actual curves and figuring out the proper range. 5.Analyzing difference of walking incentive curves in vibration or non-vibration conditions. There are 8 kinds of walking models which includes(slow speed, normal speed, fast speed,1.8HZ, 2.0HZ, 2.6 HZ);Collecting 1600 groups of walking incentive load curves and pointing out relevance that The key point of force value to walking frequency.6. Dissecting the random vibration theory of walking incentive load briefly and analyzing it to figure out representative formula in 3 directions of domain, frequency domain, time frequency. 7. Summarizing the effort that we have made and pointing out weak points of this experiment. Coming up with resolution plan concerned with advantages and difficulties of current walking incentive load experiment and making guide of later experiment towards it.