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徐自國，劉軍進(jìn)，徐強(qiáng)，朱禮敏，郭傳軍

（中國建筑科學(xué)研究院，北京100013）

 

［摘要］采用文克爾地基模型模擬地基及基礎(chǔ)的變形與受力特征，并利用地基基礎(chǔ)與上部結(jié)構(gòu)共同組成的整體計(jì)算分析模型，考慮不同區(qū)域樁基布置的影響，給出了天津津塔上部結(jié)構(gòu)施工過程中地基變形及差異沉降的定量解答，研究了施工模擬及預(yù)變形分析中地基變形對上部結(jié)構(gòu)構(gòu)件長度加工預(yù)調(diào)值及施工安裝預(yù)調(diào)值的影響。分析結(jié)果表明，地基基礎(chǔ)的均勻沉降不會(huì)影響上部結(jié)構(gòu)構(gòu)件加工預(yù)調(diào)值，不均勻沉降則有明顯影響。同時(shí)給出了上部結(jié)構(gòu)預(yù)變形分析中考慮地基基礎(chǔ)沉降影響的建議實(shí)施方法。工程實(shí)踐結(jié)果表明，本文提出的建議方法便于工程實(shí)施，具有良好的工程適用性。

［關(guān)鍵詞］施工模擬；基礎(chǔ)沉降；預(yù)變形；文克爾地基模型

中圖分類號(hào)：TU973+.23文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2012)09-0146-04

 

Xu Ziguo, Liu Junjin, Xu Qiang, Zhu Limin, Guo Chuanjun

（China Academy of Building Research, Beijing 100013, China）

 

Abstract: The deformation and mechanical characteristics were simulated with the Winkler Foundation Model for Jin Tower in Tianjin. With integrating the sub-grade model into the super-structure analysis model, and considering the influence of pile distribution in different zone, the amount of total deformation and differential settlement of sub-grade during the construction procedure was given. The influence of sub-grade deformations on the manufacture and installation preset values of super-structure members was also investigated. The analysis results show that uniform settlement of sub-grade has no influence on the members manufacture value, but the differential settlement has apparent influence on that. A simple method for considering the influence of deformation of sub-grade on the super-structure construction simulation and pre-deformation analysis was proposed. The proposed method shows good convenience and applicability for implementation in engineering.

Keywords: construction simulation; sub-grade settlement; pre-deformation; Winkler Foundation Model

*國家科技支撐計(jì)劃資助（2006BAJ01B04）。

作者簡介：徐自國，碩士，副研究員，Email：xuziguo@cabrtech.com。

 

［1］劉軍進(jìn), 徐自國, 徐強(qiáng), 等. 天津津塔施工過程分析及預(yù)變形技術(shù)［J］. 建筑結(jié)構(gòu), 2012,42(9):137-141.

［2］劉楓，劉軍進(jìn). 混凝土收縮徐變對天津津塔施工模擬及預(yù)變形的影響分析［J］. 建筑結(jié)構(gòu), 2012,42(9):142-145.

［3］中國建筑科學(xué)研究院. 天津津塔施工模擬及預(yù)變形分析綜合報(bào)告［R］. 2008.

［4］朱炳寅. 高層建筑筏基設(shè)計(jì)方法的分析與探索［J］. 建筑結(jié)構(gòu)，1999，29(4)：54-57.