Results 51 to 60 of about 1,530,362 (245)

Mitigating surcharge‐induced column‐head cracking in double‐deck shield tunnels using hyperelastic bearing joints

Deep Underground Science and Engineering, EarlyView.
A staged three‐dimensional nonlinear soil–structure interaction (SSI) model is established, in which the initial geostress state, tunnel excavation, lining installation, delayed activation of the internal frame, and subsequent surcharge loading are simulated sequentially.
Xinyu Liu, Xiang Ci, Weizhong Chen, Jianping Yang   +3 more
wiley   +1 more source

Assessment of Strength of Hollow Concrete Blocks with Holes Reinforced with Half Portion of Coconut Shells [PDF]

, 2018
Natural building materials are diminishing day by day. Hence economical alternatives of natural building materials are necessary for sustainable development.
Sachin A K, Anu S Das, Ansu V, Megha P, Nithin M Thomas   +4 more
core   +1 more source

Strength and deformability of hollow concrete blocks: correlation of block and cylindrical sample test results

Revista IBRACON de Estruturas e Materiais
This paper deals with correlations among mechanical properties of hollow blocks and those of concrete used to make them. Concrete hollow blocks and test samples were moulded with plastic consistency concrete, to assure the same material in all cases, in ...
C. S. Barbosa, J.B. Hanai
doaj   +1 more source

Peculiarities of structural properties of masonry from hollow block units and their estimation/Mūro iš tuštymėtų blokelių konstrukcinių savybių ypatumai ir jų įvertinimas

Journal of Civil Engineering and Management, 2001
Performed analyses of investigations have shown that properties of masonry from hollow blocks depend on many factors, and on material type and shape of the blocks including.
Bronius Jonaitis, Gediminas Maršiukaitis, Vytautas Papinigis, Juozas Valivonis   +3 more
doaj   +1 more source

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki, Chiyun Zhong, Constantin Christopoulos   +2 more
wiley   +1 more source

Experimental Study on the Durability and Mechanical Strength of Concrete Hollow Blocks Using Coconut Husk Ash and Coconut Shell Ash as Partial Replacement to Cement: A Sustainable Approach to Waste Utilization in Construction [PDF]

E3S Web of Conferences
This research study comprehensively investigates the utilization of coconut husk ash and coconut shell ash as partial replacement materials in the production of concrete hollow blocks.
Marcos Kenneth D., Rodirguez Meryl Mae C.   +1 more
doaj   +1 more source

Seismic Response of Existing Masonry‐Infilled RC Frame Structures Retrofitted with Steel Exoskeletons

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Considering the needs for reducing carbon emissions and except for extreme cases of very degraded existing structures, research on technologies allowing continued use or upgrading of older buildings has become a priority topic. Generally, research on upgrading of reinforced concrete frame structures certainly has a prominent role, because of ...
Francesco Nigro, Gaetano Della Corte, Enzo Martinelli   +2 more
wiley   +1 more source

Behavior of Hollow Glass Fiber-Reinforced Polymer-Reinforced Concrete Columns under Axial Load: Experimental and Theoretical Investigation

, 2022
This study investigated the behavior of hollow concrete columns (HCCs) reinforced with glass fiber-reinforced polymer (GFRP) bars and spirals under axial loading.
Gouda, Mohammed Gamal, Manalo, Allan C., Benmokrane, Brahim, Mohamed, Hamdy M.   +3 more
core   +1 more source

Influence of the Boundary Conditions on the Seismic Response of Existing Masonry Infills From In‐Plane and Dynamic Out‐of‐Plane Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Despite increasing attention to the seismic performance of masonry infills, their out‐of‐plane dynamic behaviour remains insufficiently explored, particularly under pre‐existing in‐plane damage. This study presents a comprehensive experimental campaign designed to investigate the seismic behaviour of an existing weak masonry infill typology ...
Maithree Kurukulasuriya, Riccardo R. Milanesi, Guido Magenes, Paolo Morandi   +3 more
wiley   +1 more source

Research on Mechanical Properties of Core-Filled Desulfurized Gypsum Masonry

Applied Sciences
Desulfurized gypsum, as a by-product of the wet flue gas desulfurization process in power plants, is one of the main pathways for its resource utilization by preparing new-type desulfurized gypsum hollow block with gypsum core.
Tongzhen Zhang, Shujie Liu, Chuanshuai Zhang, Jilong Li, Zhongxi Tian   +4 more
doaj   +1 more source