Read e-book online Advanced Analysis and Design for Fire Safety of Steel PDF

By Prof. Guoqiang Li, Associate Prof. Peijun Wang (auth.)

ISBN-10: 3642343929

ISBN-13: 9783642343926

ISBN-10: 3642343937

ISBN-13: 9783642343933

Advanced research and layout for fireplace defense of metal Structures systematically offers the newest findings on behaviours of metal structural parts in a hearth, resembling the catenary activities of confined metal beams, the layout tools for constrained metal columns, and the membrane activities of concrete ground slabs with metal decks. utilizing a scientific description of structural fireplace safeguard engineering rules, the authors illustrate the $64000 distinction among behaviours of an remoted structural point and the confined part in a whole constitution less than fireplace conditions.

The ebook should be a vital source for structural engineers who desire to enhance their realizing of metal structures uncovered to fires. it's also an incredible textbook for introductory classes in hearth protection for master’s measure courses in structural engineering, and is great analyzing fabric for final-year undergraduate scholars in civil engineering and hearth protection engineering. in addition, it effectively bridges the data hole among fireplace security engineers, structural engineers and development inspectors, and should be of vital curiosity to architects, code officers, construction designers and fireplace fighters.

Dr. Guoqiang Li is a Professor on the university of Civil Engineering of Tongji college, China; Dr. Peijun Wang is an affiliate Professor on the institution of Civil Engineering of Shandong collage, China.

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Additional resources for Advanced Analysis and Design for Fire Safety of Steel Structures

Example text

14. Fig. 14 Equivalent time concept Harmathy [30] and Eurocode 1 [3] also contain an equation for the equivalent time. Law’s equation [14] was developed based on temperatures attained in insulated steel work. 58) Av AT where L f is the total fire load in kg wood and K is a constant whose value is close to unity. The equivalent time teqv is given in minutes. 59) where q f ,d is the design fire load density per floor area, w f is the ventilation factor. 61) kc is a modification factor intended to account for different types of construction.

15) Specific heats calculated by above equations [6] are shown in Fig. 2. It can be seen that the specific heat of steel changes greatly with the elevation in temperature. In the temperature range of 0 o C to 600 o C, the average value of specific heat is about 600 J/(kg·o C). Taking the specific heat as a temperature independent value does not agree with the facts. However, it can greatly simplify the calculation and can be easily used by the engineer. 3 Density The density of steel may be taken as its ambient value of 7850 kg/m3 over the normally experienced temperature range in a building fire.

Usually, in a building fire the temperature keeps changing. The steady state test is not representative of the actual fire scenario. 2 Transient State Test In the transient state test, the specimen is loaded to a pre-determined stress level before test, then it is heated to failure at a specific heating rate. Usually, the heating rate is in a range of 5–50 o C/min [8] . 2 Mechanical Properties of Structural Steel at High Temperature 41 and subtracted from the total strain to determine the strain caused by stress.

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Advanced Analysis and Design for Fire Safety of Steel Structures by Prof. Guoqiang Li, Associate Prof. Peijun Wang (auth.)

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