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Tower Crane Effect on the Vibration Response of Elastic Foundation
Springer Science and Business Media LLC - Tập 47 - Trang 3839-3850 - 2023
Fu Liu, Jianwei Yang, Jinhai Wang, Peishan Liu
The present study deals with vibration of the crane foundation resting on multiple parameters of the crane structure. The stability of tower crane basically depends on the crane foundation. Vibration analysis of concrete foundations is needed to study construction safety. Dynamic models of tower crane are described by air resistance, boom deformation and Lagrange equation under the lifting-luffing...... hiện toàn bộ
Analysis of RayDec Parameters in Extracting Ellipticity Curve to Retrieve Shear Wave Velocity Profile: A Case Study in the South of Tehran
Springer Science and Business Media LLC - Tập 45 - Trang 2413-2424 - 2021
Naimeh Sadat Moghadasi, Elham Shabani, Mehrdad Fotouhimehr, Ebrahim Haghshenas
Seismic ambient noise is nowadays widely used in geophysics to characterize the subsoil structure. They are convenient, practical, and low-cost tool to provide reliable information about the underground structure especially in urbanized area. In this paper, seismic ambient noise measurements are used to study the subsoil properties at a site in the south of Tehran. Single station RayDec (Random De...... hiện toàn bộ
Numerical Analysis of Regular Reinforced Concrete Frames under Near-Fault Ground Motions
Springer Science and Business Media LLC - - 2022
Hamed Rajaei Lak, Elham Rajabi, Gholamreza Ghodrati Amiri, Ayoub Shakouri
Near-fault earthquakes are more severe compared to typical ground motions which are used in most of the seismic design codes. Near-fault ground motions with forward-directivity and fling-step can be categorized as the two major types of these earthquakes that impose great demands on structures. This paper considers the effect of near-fault earthquakes on the different reinforced concrete frames wh...... hiện toàn bộ
Experimental and Numerical Nonlinear Analysis of Hollow RC Beams Reinforced with Rectangular Spiral Stirrups under Torsion
Springer Science and Business Media LLC - Tập 46 - Trang 4019-4029 - 2022
Ahmed Ibrahim, Hamed S. Askar, Mohamed E. El-Zoughiby
Nonlinear finite element analysis plays an important role in extending experimental programs’ testing parameters and also in saving the costs of conducting these programs. Thus, nonlinear finite element analysis using ANSYS V-15.0 software had been carried out to emphasize the effect of inclined spiral stirrups having different inclination angles (θ) and pitches (P) to enhance the torsional streng...... hiện toàn bộ
Cyclic Testing of T-shaped Moderate-Aspect-Ratio Shear Walls with High Strength Reinforcement
Springer Science and Business Media LLC - - 2023
Pinle Zhang, Junfang Gao
Incorporation of Micronized Polyethylene Terephthalate in Structural Concrete Blocks
Springer Science and Business Media LLC - Tập 47 - Trang 1567-1583 - 2023
Ana Maria Gonçalves Duarte Mendonça, Osires de Medeiros Melo Neto, John Kennedy Guedes Rodrigues, Priscila Maria Sousa Gonçalves Luz, Thamires Dantas Guerra, Robson Kel Batista de Lima
This research's objective is to investigate the feasibility of incorporating polyethylene terephthalate (PET) into structural concrete blocks for use in civil construction. Initially, the materials were subjected to physical, chemical, and mineralogical characterization. Molded concrete blocks with dimensions of 14 cm × 19 cm × 29 cm, containing 2.5%, 5.0%, 7.5%, and 10.0% PET as a substitute for ...... hiện toàn bộ
Model Test on Flow Field Characteristics of the Combined Complementary Double-Hole Network Ventilation with Shaft
Springer Science and Business Media LLC - Tập 47 - Trang 1845-1860 - 2022
Shuai Yang, Ya-Qiong Wang, Ya Xiong, Yun-Xiao Xin, Min Deng, Yan-Jie Hu, Rui Ren
The ventilation system significantly influences tunnel operation safety, energy savings, and reduced consumption. The Ying'erling highway tunnel proposed a hybrid ventilation system combined with complementary double-hole network ventilation with a shaft. A ventilation model test platform was designed based on similarity theory with a 1/10 transverse length scale. The test platform was used to stu...... hiện toàn bộ
Application of Machine Learning–ANN in Predicting the Pollution Index of Sanganur Stream in Coimbatore City, Tamil Nadu, India
Springer Science and Business Media LLC - - 2024
R. Saraswathi, A. Mohammed Siraj Ansari, R. Vignesh
Coimbatore has diverse industrial presence mostly small scale industries ranging from textile unit, casting industries and Electroplating industries. The rapid urbanization and industrialization in Coimbatore city, leads to the generation and disposal of wastewater without treatment from households, hospitals, commercial buildings and industries directly into the stream, thus making the stream wat...... hiện toàn bộ
Uncertainty Assessment of Surface Water Salinity Using Standalone, Ensemble, and Deep Machine Learning Methods: A Case Study of Lake Urmia
Springer Science and Business Media LLC -
Bahareh Raheli, Nasser Talabbeydokhti, Solmaz Saadat, Vahid Nourani
Damage Detection in Members and Connections of Plane Frame with Flexible Connections Using Residual Force Method and Whale Optimization Algorithm
Springer Science and Business Media LLC - - Trang 1-15 - 2024
Osman Hamdy, Mahmoud T. Nawar
This paper proposes a quantification and location damage detection model for plane frames with flexible connections considering simultaneous damage in members and connections. A two-phase method is produced to decrease the computational efforts considerably. The first phase presents proposed damage indicators depending on the residual force vector concept to obtain the expected damaged members and...... hiện toàn bộ
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