- 摘 要
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(中機中聯(lián)工程有限公司, 重慶 400039)
摘要: 重慶及周邊區(qū)域的民用建筑結構設計過程中,支承于樁基承臺梁上的地下室結構擋墻形式較為普遍,而對于此類擋墻結構形式的擋墻根部計算約束的假定,不少結構工程師有著不同的見解. 為進一步探索此類擋墻結構的實際受力情況,采用 YJK 軟件中的實體單元有限元法進行分析,并借鑒《給水排水工程結構規(guī)范》 (GBJ 69—1984),通過分析承臺梁與擋墻截面剛度關系來明確擋墻根部約束類型,給出承臺梁內側增設一定寬度和厚度的結構底板或人字形地梁以滿足其可視作不動鉸支座的設計建議和配筋設計要點.
關鍵詞: 承臺梁; 擋墻; 支座約束; 實體單元
中圖分類號:TU375 文獻標志碼:A 文章編號:1002-848X(2023)10-0140-04
DOI:10. 19701 / j. jzjg. 20200356
Calculation analysis and engineering design of pile capping beam bearing retaining wall without structural base slab
LIU Debin
(CMCU Engineering Co. , Ltd. , Chongqing 400039, China)
Abstract: In the process of structural design of civil buildings in Chongqing and surrounding areas, the form of basementstructural retaining wall supported on pile foundation capping beam is common. Many structural engineers have differentviewpoints on the assumption of calculation constraints at the retaining wall root of this kind of retaining wall structure. Inorder to further explore the actual stress condition of the retaining wall of this kind of structure, the solid element finiteelement method in YJK building structure design software was used for analysis, and with reference to the Code for WaterSupply and Drainage Engineering Structures (GBJ 69—1984), the type of root restraint of the retaining wall was clarifiedby analyzing the relationship between the pile capping beams and the section stiffness of the retaining wall, and the designsuggestions and reinforcement design points were given to add a certain width and thickness of structural base plate orherringbone ground beam on the inner side of the pile capping beam to meet the design of what can be regarded asimmovable hinge support.
Keywords:pile capping beam; retaining wall; support constraint; solid element
作者簡介:劉德彬,學士,一級注冊結構工程師,主要從事工民建結構設計工作,Email:1075406427@ qq. com.
[引用本文] 劉德彬. 無結構底板擋墻承臺梁計算分析與工程設計[ J]. 建筑結構,2023,53(10):140-143,112.LIU Debin. Calculation analysis and engineering design of pile capping beam bearing retaining wall without structural baseslab[J]. Building Structure,2023,53(10):140-143,112.
