Showing papers in "Structures in 2021"

TL;DR: In this article, the bending behavior of an advanced functionally graded ceramic-metal plate subjected to a hygrothermo-mechanical load and resting on a viscoelastic foundation is studied using a simple higher-order integral shear deformation theory.

TL;DR: A comprehensive review of major publications addressing the blast response of the reinforced concrete slabs is provided in this article, where the phenomenon of spall damage in the slab and the parameters affecting it are discussed, and different damage/failure modes of the slabs exposed to contact or close-in detonations are presented.

TL;DR: A deep learning-based axial capacity prediction for cold-formed steel channel sections is developed using Deep Belief Network and it was found that the DBN was conservative by 9%, 6% and 8% for stub columns, intermediate columns, and slender columns, respectively.

TL;DR: In this article, the effect of using glass powder alongside polypropylene fibers was investigated in different compression and flexural beam specimens, and the best rate for glass is 25% which causes an increase in the compressive and Flexural strengths of the concrete.

TL;DR: In this paper, the authors made an in-depth investigation on the earthquake damages of various engineering structures in Nepal, and the reinforcement measures and suggestions were putted forward for post-earthquake reconstruction, which focused on the load transmission path of the structure.

TL;DR: When compared with Backpropagation Neural Network and linear regression model based on PaddlePaddle, the proposed DBN outperformed these two methods, using the same big training data generated in this study.

TL;DR: In this paper, the effects of basalt fiber content on uniaxial compressive mechanical properties and damage of concrete were investigated using 3D-digital image correlation to record the surface strain field and track the surface crack development.

TL;DR: In this paper, the effect of fibers on UHPGC properties including compressive strength, splitting tensile strength, flexural strength and modulus of elasticity was investigated.

TL;DR: The classic decoupling strategy for UBMDO, the framework of sequential design and uncertainty evaluation (SDUE), is introduced into U BMDO-RIV to reduce the computational burden and to tackle challenges of mixed uncertainties in engineering systems.

TL;DR: This review demonstrated that machine learning algorithms have established new research directions in bridge engineering, in particular for applications such as the form-finding of innovative long-span structures, structural reinforcement, and structural optimization.

TL;DR: In this article, a finite element analysis of cold-formed stainless steel channels with circular web holes, subjected to end-one-flange loading condition, is presented, where the effect of web hole size, web hole location and bearing length on the web crippling strength of such sections is investigated.

TL;DR: KnitCandela as discussed by the authors is a free-form, concrete waffle shell with KnitCrete, a falsework-less formwork approach using a custom prefabricated knitted textile as multi-functional, structural shuttering layer and a form-found cable net as the main loadbearing formwork.

TL;DR: In this paper, the effect of different amounts of metakaolin and zeolite pozzolans on the mechanical properties and durability of concrete containing polypropylene fibers was investigated.

TL;DR: In this article, the authors present a concise state-of-the-art review on the use of Fiber Reinforced Polymers (FRPs) in bridge engineering, and organize commonly used FRP bridge components, and different materials/manufacturing techniques used for repairing and construction of FRP bridges.

TL;DR: In this paper, the authors investigated the durability performance of self-compact high-strength concrete (SCHSC) by comprising silica fume and fly ash (mineral admixture), and waste marble slurry (WMS) as an alternative to cement.

TL;DR: In this article, the flexural and shear performance of reinforced concrete (RC) beams made with recycled coarse aggregate (RCA), steel fibres (SF) and polypropylene fibres(PPF) are studied.

TL;DR: In this paper, the authors developed an FE model using ABAQUS software to simulate the progressive collapse phenomenon of reinforced rubberized concrete frames and validated the proposed numerical model by comparing the FEM results with the experimental test observations.

TL;DR: The Improved Shuffled based Jaya (IS-Jaya) algorithm is proposed, which uses the concept of shuffling process to gain superior exploration capability in the search mechanism and can be an effective tool for solving discrete size optimization of skeletal structures.

TL;DR: In this article, the impact of polypropylene (PP) fiber and steel fiber hybridization on the fracture characteristics of plain and rubberized concrete prisms was examined to identify the fibers' optimized mixture proportion.

TL;DR: An experimental study according to EC4 on deconstructable steel-concrete composite bolted shear connectors is carried out to investigate the effect of various bolt size, concrete strength, bolt strength and clearance size between the precast concrete slab and bolt on the static behavior of this type of composite connection as discussed by the authors.

TL;DR: In this article, the Baily-Norton formulation has been used for modeling the creep behavior of radiant tubes distortion of cracking furnaces in operation conditions by the finite element method (FEM).

TL;DR: This paper has studied and analyzed the time-varying reliability of the large and small gears in the one-stage gear transmission system and the mechanical structure of the system itself under the correlation of strength degradation and failure.

TL;DR: An advanced macro-block model accounting for frictional resistances is used to calculate the onset load factors for two classes of local mechanisms in multi-storey URSM buildings: the rocking-sliding and the flexure mechanisms.

TL;DR: Results highlight that the self-centring behaviour is particularly sensitive to the number of storeys and tends to reduce with the increasing height of MRFs equipped with the proposed connections.

TL;DR: In this article, a three-dimensional elastoplastic model is used for simulation of the fatigue life and the fatigue crack growth path of 2024 aluminum plate riveted joints, and the results showed that the geometric parameters and the rivet material have a significant effect on fatigue cracking in aluminum plates.

TL;DR: The main parameters affecting the performance of 3D printed concrete are reviewed and potential methods to enhance these properties are discussed, which include novel reinforcement, material modification, rheology control, nozzle design, process improvements, and interlayer bonding.

TL;DR: In this article, the authors used dynamic life cycle assessment to convert greenhouse gas emission histories to key climate impacts using a simple dynamic model, and explored the implications for structural design decisions by comparing concrete, steel and timber options for a typical medium-rise building structure.

TL;DR: An effective machine learning model, namely artificial neural network (ANN), is developed for predicting the shear strength of squat flanged RC walls and an efficient graphical user interface platform has been established for facilitating the practical design process of the squat flange RC walls.

TL;DR: In this article, the flexural response of steel fiber-reinforced concrete (SFRC) incorporating recycled nylon granules (NG) and natural zeolite after exposure to elevated temperatures was investigated.

TL;DR: In this paper, the main causes of mesh-reinforced linings cracks or structure failures are summarized, and current challenges for mesh reinforced linings are examined, and the advantages of using steel fiber reinforced concrete (SFRC) for the realization of the tunnel linings is highlighted.