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Theory and Method for Design of an Inspection Well in Heating Project

Author: LiuJiLin
Tutor: YangChengYong
School: Beijing Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Thermodynamic examination room Connection between the plates Perforated plates Temperature field Lining Temperature
CLC: TU318
Type: Master's thesis
Year: 2009
Downloads: 9
Quote: 0
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Abstract


Thermal structure design examination room , board internal forces can be theoretical and finite element method calculation. Theoretical calculations can be divided according to the board simply supported boundary conditions , clamped and elastic fixation three methods. Numerical methods for single plates or inspection chamber overall structural internal force calculation . In practical engineering design which method is more suitable for the comparative analysis remains to be done to determine specifically . At present, for non-porous veneer , whether theoretical or numerical calculations have reached a satisfactory level , but for the opening panel of the force remains to be further studied. Same time as the heat pipe operations, check the indoor temperature heat within a year cyclical movements, examination rooms siding and roof and floor concrete structure, long affected by cyclical temperature changes , the resulting simplified calculation of temperature stress method is a problem worthy of study . This article briefly describes the current structure of the examination room can be used for thermal design of a variety of simplified models and calculation methods, and focuses on the structural design in the examination room of the main problems encountered , namely the examination room the connection between boards issue and calculation method of choice , examination room openings on board the impact of internal forces and deformation and thermal examination room temperature field distribution . By comparison of the typical thermodynamic calculation examination room , from the calculation of the amount of the simplicity and economy of steel both to determine the relative plate suitable examination room force calculation method, that is fixed in accordance with the elastic force is preferably calculated examination room . For perforated plates , made ??using moment increasing coefficient to calculate the approximate moment method perforated plates . Right hole size, location on board the impact of internal forces and deformation were discussed , indicating plate boundary constraints , the stronger the influence of the smaller openings on the board . Finally, equations for calculating the examination room lining , the outer wall temperature of the empirical formula . The research results on the structure and thermal inspection chambers underground structures with similar research and design has a good reference value.

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CLC: > Industrial Technology > Building Science > Building structure > Structure theory to calculate > Structural design
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