this paper describes a series of laboratory model tests on strip footings supported on unreinforced and geogrid-reinforced sand with an inside void. the footing is subjected to a combination of static and cyclic loading. the influence of various parameters including the embedment depth of the void, the number of reinforcement layers, and the amplitude of cyclic load were studied. the results sh...

Steel-concrete composite beams have been used in bridge construction for decades. Novel demountable bolted shear connectors, that allow disassembly and offer high level of prefabrication, are proposed the connection deck with steel beams, as an alternative to conventional headed studs. In terms sustainability, connectors facilitate replacement deteriorating components therefore extend design li...

Abstract The present work deals with a measurability study of damage to supporting structures wind turbines. examined hybrid tower consists prestressed concrete part an attached steel section on top. Principal focus is developing data preprocessing and analysis concept aiming investigate the two selected failure cases missing pretension tendons fatigue based change Young’s modulus in reinforcem...

A set of nodes and a set of consumers are given and to each consumer there corresponds a subset of the nodes Each consumer has a demand which is a load to be distributed among the nodes corresponding to the consumer The load at a node is the sum of the loads placed on the node by all consumers The load is balanced if no single consumer can shift some load from one node to another to reduce the ...

Designing algorithms for balanced allocation of clients to servers in dynamic settings is a challenging problem for a variety of reasons. We want a hashing-style solution where we given the ID of a client can efficiently find its server in a distributed dynamic environment where both servers and clients may be added and/or removed from the system in any order. The main objectives of allocation ...

This paper describes an investigation of the ability of humans to distinguish different levels of gearlever load. A test rig with a forward-backward moving gearshift lever was constructed using the typical interior dimensions of European B segment automobiles. The rig used a system of weights and pulleys to provide a load which could be varied in steps of 1%. Four reference loads were chosen wh...

A model of population structure in heterogeneous environments is described with attention focused on genetic variation at a single locus. The existence of equilibria at which there is no genetic load is examined.--The absolute fitness of any genotype is regarded as a function of location in the niche space and the population density at that location. It is assumed that each organism chooses to ...

Probabilistic design of structures is usually based on estimates of design loads with a large average return period. Design loads are often estimated using classical statistical methods. A shortcoming of this approach is that statistical uncertainties are not taken into account. In this paper, a method based on Bayesian statistics is presented. Using Bayes’ theorem, the prior distribution repre...

There are many models for hindcasting ice loads from meteorological data measured during freezing rain storms. Each model is based on the physics of the ice accretion process and on empirical observations. However, these models predict significantly different ice loads for the same freezing rain storm, making it difficult to use model results to determine design ice loads. In this paper, we des...

According to the problem that for a structure under random loads, the structural fatigue life can’t be directly calculated out by S-N curves and linear Miner cumulative damage rule. Owing to the uncertainty of loads, and the problem of the inaccuracy of calculated structural reliability index for the existence of deviation between measured data in projects and real data, the research method for...