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首页> 外文期刊>Journal of geotechnical and geoenvironmental engineering >Responses of Buildings with Different Structural Types to Excavation-Induced Ground Settlements
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Responses of Buildings with Different Structural Types to Excavation-Induced Ground Settlements

机译：不同结构类型的建筑物对开挖引起的地面沉降的响应

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This paper compares the responses of buildings with different structural types on shallow foundations subjected to excavation-induced ground settlements and provides a better understanding of the complex soil-structure interaction in building response. Investigated structures include brick-bearing structures, open-frame structures, and brick-infilled frame structures. These structures are often encountered near a construction area, and the different structures may show very different behaviors to excavation-induced ground settlements. In this research, numerical studies were carried out to evaluate the responses of single brick-bearing walls and frame structures (both open and brick infilled) subjected to an identical progressive ground settlement and to provide key features of building responses in different soil conditions, structure conditions, and structural types. Each structure, which is four stories high, was modeled numerically with two different soil conditions, and the response was compared among other types of structures and between elastic and crackable conditions for the brick-bearing and brick-infilled frame structures. Comparison of building responses was investigated by using distortions and crack damages induced to the structures by excavation-induced ground settlements. The structures were modeled by using the two-dimensional (2D) universal distinct element code (UDEC 3.1) in which each brick unit was modeled as a separate unit, with the contacts between brick units having stiffness and strength characteristics of mortar. The numerical studies indicated that the structural response to excavation-induced ground settlements is highly dependent on structural type, cracking in a structure, and soil condition; therefore, their effects should be considered to better assess building response to excavation-induced ground settlements.
机译：本文比较了在开挖引起的地面沉降下浅基础上具有不同结构类型的建筑物的响应，并更好地了解了建筑物响应中复杂的土-结构相互作用。研究的结构包括砖砌结构，开放框架结构和砖砌框架结构。这些结构经常在建筑区域附近遇到，并且不同的结构可能对开挖引起的地面沉降表现出截然不同的行为。在这项研究中，进行了数值研究以评估承受相同渐进地面沉降的单砖砌墙和框架结构（开放式和填充砖）的响应，并提供在不同土壤条件，结构下建筑响应的关键特征条件和结构类型。每个结构都是四层楼高，在两种不同的土壤条件下进行了数值建模，并比较了其他类型结构之间的响应以及砖瓦和填充砖砌结构的弹性和易裂性条件。利用开挖引起的地面沉降对结构引起的变形和裂缝破坏，对建筑响应进行了比较。通过使用二维（2D）通用独特元素代码（UDEC 3.1）对结构进行建模，其中将每个砖块单元建模为一个单独的单元，砖块单元之间的接触具有砂浆的刚度和强度特性。数值研究表明，对开挖引起的地面沉降的结构响应高度依赖于结构类型，结构中的裂缝和土壤条件。因此，应考虑其影响，以更好地评估建筑物对开挖引起的地面沉降的响应。

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