- 摘 要
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顧渭建1， 馮 麗2， 王 靜1， 張 鏖1，周淑玲1
（1 總參工程兵第四設計研究院，北京 100850； 2 北京建筑工程學院，北京 100044）[摘要] 結合實際工程的特點，對地處地震高烈度區(qū)的跨度分別為7. 5m和8.7m的鋼筋混凝土懸挑梁結構，采用了有粘結預應力技術，較好地解決了懸挑梁的結構受力問題和梁的變形、撓度控制問題。主要介紹了預應力懸挑梁的結構設計計算和配筋情況，同時對懸挑梁的控制參數(shù)、內力計算、抗裂驗算、變形驗算和抗震驗算等提出了設計建議。
[關鍵詞] 大跨度；懸挑梁；預應力結構；結構設計
中圖分類號：TU378.2 文獻標識碼：A 文章編號：1002-848X(2012) Sl-0154-03Structural design of large-span reinforced concrete cantilever beam in high intensity areas
Gu Weijian1, Feng Li2, Wang Jing1, Zhang Ao1, Zhou Shuling1
(1 The 4th Engineering Design & Research Academy, General Staff, PLA, Beijing 100850, China; 2 Beijing University of Civil Engineering and Arclutecture, Beijing 100044, China)Abstract: Based on the engineering,the problem of structuralload carrying capacity and deformation, deflection for the large-span cantilever beam (7.5m and 8.7m) in high seismic intensity areas were solved and controlled by using bonded prestressed concrete structure. The design calculation methods and construction measures of prestressed concrete cantilever beam were introduced. Meanwhile, some recommendations were provided about the choice of control parameters, calculation of structural mecharucs, checking computation of crack resistance, deformation analysis and the seismic design for the cantilever beam.
Keywords: large-span; cantilever beam; prestressed concrete structure; structural design
