Development of bridge girder movement criteria for accelerated bridge construction.

Chen, Genda; Bao, Yi; Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Development of bridge girder movement criteria for accelerated bridge construction.

2014-06-01
By Chen, Genda ; Bao, Yi

[PDF-8.75 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Chen, Genda ; Bao, Yi

Chen, Genda ; Bao, Yi Less -
Corporate Creators:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Bridge Construction Bridge Design Bridge Superstructures Diaphragms (Engineering) Earthquake Resistant Design Finite Element Method Girder Bridges Mathematical Models Transverse Strength
Publication/ Report Number:

NUTC R316 ; Project #00040815

NUTC R316 ; Project #00040815 Less -
Resource Type:

Tech Report
Geographical Coverage:

Missouri
Corporate Publisher:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Abstract:

End diaphragms connect multiple girders to form a bridge superstructure system for effective resistance to earthquake loads. Concrete

girder bridges that include end diaphragms consistently proved to perform well during previous earthquake events. However, whether

concrete bridges without end diaphragms are definitively inadequate in seismic performance is yet to be answered. The 2010 Chile

Earthquake indicated that properly designed bridge girders and their lateral movement stoppers (shear keys) may perform equally well

with those with end diaphragms. In this report, a feasibility study on the design of girder bridges without end diaphragms is presented.

This study is particularly significant in the context of accelerate bridge construction since concrete diaphragms are often cast in place

and eliminating them can save field erection time and cost. The key to make the no-diaphragm concept work is to understand how

multiple girders can work together during a transverse earthquake excitation without breaking the girders and bridge deck.

Specifically, a three-dimensional finite element model of a representative concrete girder bridge with and without end diaphragms is

established and analyzed to understand the effects of various design parameters (e.g. diaphragm height, diaphragm thickness, the

coefficient of friction between girders and their supporting elements, the number and size of shear keys) on transverse girder

movement capacity. Numerical results indicate that properly designed end diaphragms can increase the transverse capacity of a bridge

by making individual girders work together but can be substituted by shear keys placed between the strengthened girders. In doing so,

both transverse capacity and stiffness of the bridge superstructure can be significantly increased. Shear keys are more reliable than the

friction mechanism. In particular, movable shear keys are more effective in distributing loads among multiple girders.
Format:

PDF
Funding:

DTRT06-G-0014
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:2ec75b3cc6904f360a8df2a8401cab87466a981f6331f84efe0513b66880a221
Download URL:

https://rosap.ntl.bts.gov/view/dot/27952/dot_27952_DS1.pdf
File Type:

No Additional Files

More +

Development of bridge girder movement criteria for accelerated bridge construction.

Details:

Supporting Files

You May Also Like