Experimental investigations of bearing capacity of hollow piles under vertical loading

1988 ◽  
Vol 25 (2) ◽  
pp. 63-67
Author(s):  
B. V. Bakholdin ◽  
V. I. Berman ◽  
I. V. Mikhailenko
Keyword(s):  
Bearing Capacity ◽  
Experimental Investigations ◽  
Vertical Loading

Problems of Cold-Bent Notched C-Shaped Profile Members

2014 ◽  
Vol 941-944 ◽  
pp. 1871-1875 ◽  
Author(s):  
Nikolay I. Vatin ◽  
Tatiana Nazmeeva ◽  
Roman Guslinscky
Keyword(s):  
Bearing Capacity ◽  
Cross Sections ◽  
Experimental Investigations ◽  
Heat Current ◽  
Thermal Profile ◽  
Engineering Structures ◽  
Normative Documents ◽  
Steel Members ◽  
Global Buckling ◽  
Stability Of Structures

Nowadays cold bent steel thermal сold-bent С-profile is widely used in building construction but we still have some little studied questions in the fields of thermal conductivity, air permeability, resistibility and corrosion behavior of the profile. Cold-bent notched С-profile is used for interior exterior panel members. Lengthwise notches made chequerwise in the profile walls increase the distance of heat flow and decrease heat conductivity and eliminate cold bridges that is why the profile is called “thermal profile”. Cold-bent profile made by cold bending requires alternate approach when engineering structures are designed and maintained. The approach means thin walls’ and the profile special form’ impact on the bearing capacity and stability of the structures should be taken into account. In spite of the wide use of cold-bent notched C-profile in building frameworks, we see lack of information on how the notches influence the bearing capacity and stability of structures. There are no official normative documents on calculation and designing of cold-bent notched profile structures. We carry out theoretical and experimental investigations on global buckling and bearing capacity of steel members of C-shaped notched profiles of different cross-sections area. We carry out theoretical and experimental investigations on heat current passing through the thermal profile structure is held with the use of testing bed.

scholarly journals EFFECTS OF ALTERNATELY CYCLIC VERTICAL LOADING ON BEARING CAPACITY AND PULL-OUT RESISTANCE OF A PILE WITH OR WITHOUT A WING PLATE

2012 ◽  
Vol 77 (681) ◽  
pp. 1683-1689 ◽  
Author(s):  
Kohji TOKIMATSU ◽  
Kei INAMURA ◽  
Hiroko SUZUKI ◽  
Masatoshi WADA ◽  
Hideyuki MANO
Keyword(s):  
Bearing Capacity ◽  
Vertical Loading ◽  
Pull Out

Experimental Investigations on the Seismic Behavior of Precast Concrete Columns with Novel Box Connections

2019 ◽  
Vol 14 (02) ◽  
pp. 2050007
Author(s):  
Xizhi Zhang ◽  
Shengbo Xu ◽  
Shaohua Zhang ◽  
Gaodong Xu
Keyword(s):  
Energy Dissipation ◽  
Bearing Capacity ◽  
Failure Mode ◽  
Seismic Behavior ◽  
Load Transfer ◽  
Precast Concrete ◽  
Hysteretic Behavior ◽  
Experimental Investigations ◽  
Test Results ◽  
Energy Dissipation Capacity

In this study, two types of novel box connections were developed to connect precast concrete (PC) columns and to ensure load transfer integrity. Cyclic loading tests were conducted to investigate the seismic behavior of the PC columns with proposed connections as well as the feasibility and reliability of novel box connections. The failure mode, hysteretic behavior, bearing capacity, ductility, stiffness degradation and energy dissipation were obtained and discussed. The test results indicated that the all PC columns exhibited the ductile flexural failure mode and that the proposed connections could transfer the force effectively. The adoption of novel box connections could improve the deformation capacity and energy dissipation capacity of PC columns. A higher axial compression ratio could enhance the bearing capacity of PC column with proposed connection but would significantly deteriorate the ductility and energy dissipation capacity. Finite element models were developed and the feasibility of the models was verified by the comparison with the test results.

scholarly journals Modelling and calibration for cyclic soil-structure interface behaviour

2019 ◽  
Vol 92 ◽  
pp. 13007
Author(s):  
Borana Kullolli ◽  
Pablo Cuéllar ◽  
Matthias Baeßler ◽  
Hans Henning Stutz
Keyword(s):  
Cyclic Loading ◽  
Constitutive Model ◽  
Bearing Capacity ◽  
Steel Plates ◽  
Experimental Investigations ◽  
Load Bearing Capacity ◽  
Practical Advantage ◽  
Load Bearing ◽  
Ring Shear ◽  
Shearing Resistance

The structural performance of many geotechnical systems (e.g. axially-loaded pile foundations), depends on the shearing resistance at the soil interface, which may govern the load bearing capacity of the foundation. Experimental investigations have shown that this interaction is mainly localised within a narrow shear band next to the structure. Under cyclic loading, a contraction of the soil at the interface may arise (net volume loss), possibly leading to a stress relaxation and thus to a reduction of the load bearing capacity (the so-called friction fatigue). Based on the constitutive similarities between soil continua and interfaces, we propose here the adaption of a Generalized Plasticity model for sandy soils for the numerical analysis of interface problems. In this contribution, the results of an experimental campaign for the parameter calibration of the constitutive model are presented. The tests have been conducted with a ring shear device involving different normal stresses, roughness of the steel plates as well as cyclic loading. The new modelling approach shows promising results and has the additional practical advantage that the interface zone and the soil continuum can both be described with the same constitutive model in general boundary value problems.

Experimental Investigations of Masonry Columns Strengthened by SGFRP under Eccentric Loads

2013 ◽  
Vol 351-352 ◽  
pp. 1509-1513
Author(s):  
Zhi Zhang ◽  
Qian Gu ◽  
Qi Ming Yu
Keyword(s):  
Bearing Capacity ◽  
Glass Fiber ◽  
Seismic Behavior ◽  
Failure Modes ◽  
Fiber Reinforced Polymer ◽  
Experimental Investigations ◽  
Fiber Reinforced ◽  
Glass Fiber Reinforced Polymer ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced

5 masonry columns were strengthened by Sprayed Glass Fiber Reinforced Polymer (SGFRP) in this paper, and a research of the seismic behavior of them tested by eccentric loading experiment was presented. The failure modes of the strengthened masonry columns were illustrated and strengthening effects of them were discussed. The results showed that the bearing capacity of the reinforced columns increased greatly, and the ductility of them also improved significantly. Comparing the strengthening effects of the columns when the thickness of SGFRP and the number of glass fiber are different, some reasonable reinforce suggestions are proposed.

Sign in / Sign up

Export Citation Format

Share Document