西安市西北大酒店二层客房增加五层，对地基与结构墙体加固补强，采用预压桩托换及钢筋网片夹板墙法。
Precompressed pile foundation under pinning technique is used to reinforce the foundation and structural wall for adding the building named Xibei hotel from two floors to seven floors in Xian city.
结合薄壁压力容器大开孔的特点，提出一种新型补强结构。
A new reinforcement structure is presented according to the characteristics of the large opening on thin-walled pressure vessel in this paper.
解决应力集中问题不应通过加大构件断面尺寸，而应采用降低应力集中的结构措施或局部补强。
Resolve the problem of stress focus don't adopt increasing component dimension, but structure measure by reducing stress focus or locally supplying strength.
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