【摘要】 本文简要介绍了使用无粘结预应力技术改进原有建筑结构设计的一次尝试。其工程的难点在于:该工程原施工图已搞完,桩基础、三层地下室已完工,群桩承载力有限。甲方希望在不增加总高、不减少室内静高、不改变平面布局的前提下增加两、三层。经多方面论证、计算和比较,本文确定了无粘预应力楼盖的设计方案。并完成了该项工程的设计。目前、全部结构工程已完工。更多还原

【Abstract】 This pater introduces an attempt to improve the achitectural design of an office building at FOSHAN CITY, GUANG DONG province, using the technique of pre-stressed concrete with unbonded tendons. This improvement increses usable area about 10% under the condition of limitted fundation bearing capacity, limitted storey height and the heigh limitation of buildings in the nearby area.更多还原