Experimental study on shear connection in unfilled composite steel grid bridge deck

2010 ◽  
Vol 66 (11) ◽  
pp. 1339-1344 ◽  
Author(s):  
Sung-Hoon Kim ◽  
Jun-Hyeok Choi
Keyword(s):  
Experimental Study ◽  
Bridge Deck ◽  
Shear Connection ◽  
Composite Steel

An experimental study of bridge deck cracking using type K-cement

2014 ◽  
Vol 52 ◽  
pp. 366-374 ◽  
Author(s):  
Douglas Richardson ◽  
Ying Tung ◽  
Daniel Tobias ◽  
Riyadh Hindi
Keyword(s):  
Experimental Study ◽  
Bridge Deck ◽  
Type K

scholarly journals Experimental Study on Nano-SiO2 Improving Concrete Durability of Bridge Deck Pavement in Cold Regions

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Youkun Cheng ◽  
Zhenwu Shi
Keyword(s):  
Experimental Study ◽  
Abrasion Resistance ◽  
Calcium Silicate Hydrate ◽  
Bridge Deck ◽  
Hardened Cement ◽  
Concrete Durability ◽  
Ion Permeability ◽  
Cold Regions ◽  
Bridge Deck Pavement ◽  
Early Damage

In order to reduce early damage of bridge deck pavement concrete in cold regions, a certain content of nano-SiO2 is added into the concrete to enhance its durability. Through tests on four durability indexes, strength, frost resistance, resistance to Cl− ion permeability, and abrasion resistance of concrete with 1% nano-SiO2 content and concrete without nano-SiO2, the ability of nano-SiO2 to improve the concrete durability of bridge deck pavement is evaluated. The results of tests and analysis show that the incorporation of nano-SiO2 greatly improves the four durability indexes. Nano-SiO2 effectively absorbs the calcium hydroxide released early by the hydration of cement, increases the calcium silicate hydrate content, and elevates the interface between the paste and aggregate of the hardened cement, which improves the durability of the concrete.

Drilled standoff screws for shear connection in light composite steel–concrete trusses

2007 ◽  
Vol 63 (10) ◽  
pp. 1404-1414 ◽  
Author(s):  
J.R. Ubejd Mujagić ◽  
W.S. Easterling ◽  
T.M. Murray
Keyword(s):  
Shear Connection ◽  
Composite Steel

scholarly journals Experimental study and numerical simulation of temperature gradient effect for steel-concrete composite bridge deck

2021 ◽  
pp. 002029402110071
Author(s):  
Da Wang ◽  
Benkun Tan ◽  
Xie Wang ◽  
Zhenhao Zhang
Keyword(s):  
Experimental Study ◽  
Thermal Stress ◽  
Temperature Distribution ◽  
Temperature Gradient ◽  
Bridge Deck ◽  
Vertical Temperature ◽  
Extreme Stress ◽  
Gradient Effect ◽  
Composite Bridge ◽  
Composite Bridge Deck

The temperature distribution of the bridge and its thermal effect has always been an important issue for researchers. To investigate the temperature distribution and thermal stress in the steel-concrete composite bridge deck, a 1:4 ratio temperature gradient effect experimental study was carried out in this paper. First, a set of experimental equipment for laboratory temperature gradient loading was designed based on the principle of temperature gradient caused by solar radiation, the temperature gradient obtained from the measurements were compared with the specifications and verified by the FE method. Next, the loading of the steel-concrete composite deck at different temperatures was performed. The thermal stress response and change trend of the simply supported and continuously constrained boundary conditions under different temperature loads were analyzed. The experimental results show that the vertical temperature of steel-concrete composite bridge deck is nonlinear, which is consistent with the temperature gradient trend of specifications. The vertical temperature gradient has a great influence on the steel-concrete composite bridge deck under different constraints, and the extreme stress of concrete slab and steel beam is almost linear with the temperature gradient. Finally, some suggestions for steel-concrete composite deck design were provided based on the research results.

Experimental Research on Interface Mechanic Behavior of the Composite Steel-Concrete Beams

2012 ◽  
Vol 204-208 ◽  
pp. 4471-4475
Author(s):  
Guo Fu
Keyword(s):  
Experimental Research ◽  
Concrete Beams ◽  
Bench Mark ◽  
Element Analysis ◽  
Shear Connection ◽  
Loading Mode ◽  
Steel Sections ◽  
Interface Slip ◽  
Test Process ◽  
Composite Steel

Experiments were conducted on 7 simply-supported composite steel-concrete beams (SCB) with compact steel sections to investigate their interface mechanic behavior. The influences of different loading mode, degree of shear connection and stud arrangement are discussed. The test process, specimen failure matter and uplift distribution along the span of the beam are analyzed. Based on the experimental research, the formulae are derived for the interface slip and uplift rigidity of the stud in composite steel-concrete beams. The present values bench-mark finite element analysis of load bearing capacity and deflection of composite steel-concrete beams.

scholarly journals Experimental study on static response of prefabricated concrete bulb-tee bridge girder flange-to-flange connections

2021 ◽  
Author(s):  
Siyin Tu
Keyword(s):  
Experimental Study ◽  
Bridge Deck ◽  
Ultimate Load ◽  
Load Capacity ◽  
Wheel Load ◽  
Ultimate Load Capacity ◽  
Yield Line Theory ◽  
Line Theory ◽  
Bridge Girder ◽  
Ultimate Load Carrying Capacity

Prefabricated concrete Deck Bulb-Tee (DBT) bridge girder system requires precast girder flanges to be connected and formed bridge deck at site. In this study, a new bridge deck slab flange to flange connection system for precast DBT girders has been investigated. Two types of moment transferring connection and another two types of intermittent bolted connection were developed. A total of four full-scale bridge DBTgirders for the developed connection details were fabricated and then tested to collapse under simulated wheel load. This thesis reports on an experimental study on static behavior and ultimate load carrying capacity of bridge Deck Bulb-Tee girders jointed with proposed connection detail and technology. structural behavior, including stress and strain, crack formation and propagation, deflection, failure mode, and ultimate load capacity, has been identified. Experimental results are compared to those obtained using the Yield-Line Theory and the available Punching Shear Equations.

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