端部剪力墙对带有直升机停机坪的钢筋混凝土高层建筑行为的影响

IF 1.7 4区 工程技术 Q3 ENGINEERING, CIVIL
Ali Kheyroddin, Mehran Akhavan Salmassi, Mahdi Kioumarsi
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引用次数: 0

摘要

如今,直升机停机坪被认为是在高层建筑的屋顶上提供空中出租车服务或在发生重大火灾时进行疏散的场所。另一方面,侧向荷载系统在高层建筑中起着至关重要的作用。在高层建筑中,钢筋混凝土端部剪力墙连接所有楼层的两个钢筋混凝土剪力墙的端部,以减少端翼的张力。因此,本研究比较了两个 30 层的钢筋混凝土建筑模型,这两个模型的顶部分别设有和不设有端部剪力墙的直升机停机坪。两栋高层建筑中的直升机停机坪应同时考虑着陆和起飞的基本区域,以及直升机在起飞最终进场和起飞或盘旋或着陆(进场机动)过程中开始向前飞行的区域。上述高层建筑均承受直升机停机坪荷载。结果表明,30 层高的端部剪力墙的第一周期和最大漂移层数分别下降了 52% 和 47%。此外,还采用了统计分析进行进一步研究。相关结果显示,采用端部剪力墙和直升机停机坪的 30 层建筑的偏斜系数和峰度系数分别降低了 18% 和 70%。结果表明,在带有端部剪力墙和直升机停机坪的高层钢筋混凝土建筑中,端部剪力墙的性能是合适的,可用于个人交通。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The Impact of End Shear Walls on the Behavior of Reinforced Concrete Tall Buildings with Helipad for Personal Transportation

The Impact of End Shear Walls on the Behavior of Reinforced Concrete Tall Buildings with Helipad for Personal Transportation

Nowadays, the helipad is considered on the roofs of tall buildings to accommodate air taxi services or evacuation in case of a major fire outbreak. On the other hand, lateral load systems play an essential role in tall buildings. In tall buildings, the reinforced concrete end shear walls connect the ends of two reinforced concrete shear walls in all stories to reduce tensions in the end wings. Accordingly, this research compared two 30-story models of reinforced concrete buildings with helipads on top with and without end shear walls. Helipads in two tall buildings should consider both the essential area for touchdown and liftoff and the area where a helicopter begins to move into forward flight during takeoff final approach and takeoff or hovers or lands (approach maneuver). The mentioned tall buildings were subjected to helipad load. Based on the results, the first period and maximum drift story declined by 52% and 47% in 30-story by end shear walls, respectively. In addition, statistical analysis was used for further investigation. The related results showed that skewness and kurtosis coefficients were reduced by 18% and 70% in the 30-story building with an end shear wall and a helipad. The consequences presented suitable performance end shear walls in the tall reinforced concrete building with end shear walls and helipads for personal transportation.

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来源期刊
CiteScore
3.30
自引率
11.80%
发文量
203
期刊介绍: The aim of the Iranian Journal of Science and Technology is to foster the growth of scientific research among Iranian engineers and scientists and to provide a medium by means of which the fruits of these researches may be brought to the attention of the world’s civil Engineering communities. This transaction focuses on all aspects of Civil Engineering and will accept the original research contributions (previously unpublished) from all areas of established engineering disciplines. The papers may be theoretical, experimental or both. The journal publishes original papers within the broad field of civil engineering which include, but are not limited to, the following: -Structural engineering- Earthquake engineering- Concrete engineering- Construction management- Steel structures- Engineering mechanics- Water resources engineering- Hydraulic engineering- Hydraulic structures- Environmental engineering- Soil mechanics- Foundation engineering- Geotechnical engineering- Transportation engineering- Surveying and geomatics.
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