Results 21 to 30 of about 20,428 (239)
Jianzhu Gangjiegou Jinzhan, 2021 为代替传统的钢筋混凝土剪力墙,充分发挥组合剪力墙结构体系的良好抗震性能,使其易于满足9度抗震设防的设计要求,同时控制墙肢的厚度,以便获取更大的建筑使用面积,钢板-混凝土组合剪力墙被设计应用于9度区高层建筑结构中。根据LEELATAVIWAT等提出的塑性设计方法,并结合对应的内力调整措施,对基于能量平衡的组合联肢剪力墙结构塑性设计方法进行了相关梳理和推导。并且在9度抗震设防条件下,基于此方法设计了12个联肢组合剪力墙结构算例,采用ABAQUS有限元软件对12个算例进行静力弹塑性分析及抗震性能研究 ...
张军, 伍云天, 杨永斌, 王斌
doaj
Efficient Simulation Methods for Reinforced Concrete Columns with Encased Steel in High-rise Building Structures [PDF]
, 2016 型钢混凝土柱在建筑结构中往往是主要的承重构件之一，使用合适的数值模型分析其力学性能对高层结构抗震分析有重要的意义。本文综述了目前文献中已有的低含钢率恢复力模型相关研究，分析了其理论、计算流程和算法，并在通用有限元软件OpenSees中编程实现。本文详细推导了模型中基本参数的确定方法，并用于模拟实际高层建筑结构中的型钢混凝土柱。首先，本文用恢复力模型模拟了单根型钢混凝土柱的试验，通过对比验证了模型的精度，研究了其计算效率。其次，本文将恢复力模型用于理想32层高层结构中的单排型钢混凝土构件静、动力分析中 ...
曾志弘
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Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
People and Nature, EarlyView.Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 近年来，随着装配式施工的推广，钢-混凝土组合结构的应用越来越广泛。钢-压型钢板混凝土组合梁是组合结构中的常用构件。钢-压型钢板组合梁是通过抗剪连接件将钢梁与压型钢板混凝土组合楼板连接成一个共同工作的整体结构构件，组合梁中通常采用栓钉作为抗剪连接件。因此，对钢-压型钢板混凝土组合梁栓钉连接件的受剪承载力进行准确评估和计算具有重要的工程应用价值。为了获得较理想的栓钉连接件受剪承载力计算模型，对国内外压型钢板组合梁栓钉连接件承载力的研究进行了综述，并收集了相关推出试验的数据 ...
许兰兰, 胡夏闽
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Behavior of hybrid FRP-concrete-steel tubular columns : experimental and theoretical studies [PDF]
, 2017 2006-2007 > Academic research: refereed > Publication in refereed journalVersion of ...
Dong, SL +4 more
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Conservation Biology, EarlyView.Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva +9 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown +2 more
wiley +1 more source
Use of Structural Equation Modelling and Neural Network to Analyse Shared Parking Choice Behaviour [PDF]
, 2023 The shared parking mode represents a feasible solution to the persistent problem of parking scarcity in urban areas. This paper aims to examine the shared parking choice behaviours using a combination of structural equation modelling (SEM) and neural ...
Chen, Shuyan +4 more
core +2 more sources
Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2020 为了在中小跨径桥梁中推广使用钢-混凝土组合结构桥梁,提高桥梁的工业化建造水平和组合梁桥的装配化程度,提出了一种整体预制钢-混凝土组合梁桥结构。结合常用的中小跨径的需求,考虑公路运输条件和吊装能力,构建了整体预制钢-混组合梁结构基本单元,并提出了单元之间的连接方式,进一步形成整体桥梁。计算分析表明:所提出的整体预制钢-混组合梁,在受力性能方面均优于传统分离预制钢-混组合梁,在全寿命周期的经济性能方面优于现有的预制混凝土箱梁、预制混凝土T形梁,在施工性能方面相比于现有的预制混凝土箱梁 ...
苏庆田 +4 more
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