水電站預(yù)應(yīng)力閘墩設(shè)計(jì)分析

內(nèi)容概要

本書系統(tǒng)介紹了巴貢水電站溢洪道預(yù)應(yīng)力閘墩的三維有限元分析結(jié)果，詳細(xì)描述了中墩和邊墩關(guān)鍵部位的應(yīng)力和變形情況，分析了錨固區(qū)應(yīng)力受預(yù)應(yīng)力施加方式的影響，比較研究了豎井和錨拉洞兩種錨固方案。    本書可用作水利行業(yè)涉外工程設(shè)計(jì)人員的參考書，也可供水利水電專業(yè)在校學(xué)生學(xué)習(xí)相關(guān)專業(yè)知識(shí)。

書籍目錄

Forewords    Introduction    1.1  General of the project    1.2  Layout of weirs    1.3  Layout of piers    1.4  Design of tainter gate support    1.5  Arrangement of prestressed tendons    Basic parameters and design priciples    2.1  Basic parameters         2.1.1  Characteristic water levels         2.1.2  Water surface profile on the pier         2.1.3  Unit weight of water         2.1.4  Properties of rock foundation         2.1.5  Properties of concrete         2.1.6  Properties of tendons         2.1.7  The thrust of tainter gate          2.1.8  Tonnage of the prestressed tendons          2.1.9  Earthquake parameters          2.1.10  Temperature load          2.1.11  Thrust of the bulkhead gate     2.2  Limit states of concrete     2.3  Loads and load combinations          2.3.1  On the middle pier          2.3.2  On the side pier     Numerical model of the pier     3.1  Assumptions     3.2  Region of finite element analysis     3.3  Boundary conditions     3.4  Model of the pier          3.4.1  Coordinate system          3.1.2  The FEM model    3.5  Analysis procedures4  Results of the middle pier    4.1  Definitions          4.1.1  Coordinate systems          4.1.2  Stress          4.1.3  Displacement and deformation          4.1.4  Characteristic sections          4.1.5  Key points          4.1.6  The paths          4.1.7  Terminology     4.2  Results of the stresses          4.2.1  Anchorage block          4.2.2  Bearing area of the pier           4.2.3  The upstream vertical anchorage well           4.2.4  The intersecting line of pier body with base plate           4.2.5  The slot of the tainter gate           4.2.6  Bulkhead slot           4.2.7   The galleries     4.3  Results of the displacements           4.3.1  Anchorage block           4.3.2  Bearing area of the pier           4.3.3  The upstream vertical anchorage well           4.3.4  The intersecting line of pier with base plate           4.3.5  The tainter gate slot           4.3.6  The bulkhead slot           4.3.7  The galleries           4.3.8  Contour map of the displacements5  Results of the side pier     5.1  Definitions           5.1.1  Coordinate systems           5.1.2  Stress           5.1.3  Displacement           5.1.4  Characteristic sections           5.1.5  Key points           5.1.6  The path           5.1.7  Terminology     5.2  The results of stresses        5.2.1  Anchorage block        5.2.2  Bearing area of the pier        5.2.3  The upstream vertical anchorage well        5.2.4  The intersecting line of pier with base plate        5.2.5  The slot of the tainter gate        5.2.6  Bulkhead slot   5.3  Results of the displacements        5.3.1  Anchorage block        5.3.2  Bearing area of the side pier        5.3.3  The upstream vertical anchorage well        5.3.4  The intersecting line of side pier with base plate        5.3.5  The tainter gate slot        5.3.6  The bulkhead slot        5.3.7  Contour maps of the displacements    Conclusions   6.1  The middle pier        6.1.1  The stresses of main parts         6.1.2  The displacements of main parts   6.2  The side pier         6.2.1  The stresses of main parts         6.2.2  The displacements of main parts    6.3  SuggestionsAppendix-A Anchor-plans comparison of vertical anchorage well with anchorage cavities.Appendix-B  Stress of the anchorage region of prestressed tendonsAppendix-C  Stress band plot in the unfavorable load casesAppendix-D  Constant value line figures of stressesReferences

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