Docstoc

DECK SUPPORTS

Document Sample
DECK SUPPORTS Powered By Docstoc
					                                              7. DECK SUPPORTS

Each bridge must prepare the space with 600 x 600 mm area in the bridge center for loading
test. If your bridge is a girder bridge which does not have any superstructures, maximum
width of the girder must not be larger than 600 millimeters. If your bridge is not a girder
bridge, you have to prepare “Deck Supports”. Upper surface of girders and deck supports
must have the full length of span, that is, more than 3.0 meters length. If your bridge does
not have spaces for loading or you did not prepare deck supports, you have to take severe
penalty. See 15.4. DECK SUPPORTS.


7.1. For Girder Bridge

The width of outermost edges of girder has to be smaller than 600 millimeter for putting deck
and loading materials on the bridge center. Please follow the limit of maximum girder width
below. If your bridge does not have enough space for loading, you can not take load test and
scores.




                                               600
                                           (DECK WIDTH)

                                             LOADING                        GIRDER                            LOADING
                                                           DECK                                                                     GIRDER
                                            MATERIALS                                                        MATERIALS
    ABUTMENT




                                                                                       ABUTMENT




                                                                                                  ABUTMENT




                                                                                                                         ABUTMENT




                                               600
                                           (DECK WIDTH)                       GIRDER
                   Less Than 600




                                                             (DECK WIDTH)
                                                                 600




                                   Fig. 7.1. Deck support conditions for girder bridges




                                                           14
7.2. For Other Bridge Form

If you design other bridge forms than girder, you have to prepare space for putting deck and
loading materials. Please follow limits of maximum width of deck supports and minimum
width of superstructure below. If your bridge does not have enough space for loading, you
can not take load test and scores.

                                                                                                                                                                          SUPERSTRUCTURE


                                                                                                                      SUPERSTRUCTURE




                                                                                                                                                                             DECK
                                                                      LOADING                                                                                 LOADING
                                                                                                                   DECK SUPPORT                                              DECK SUPPORT
                                                                     MATERIALS               DECK                                                            MATERIALS




                                                                                                                                       ABUTMENT




                                                                                                                                                                            ABUTMENT
    ABUTMENT




                                                                                                                                                  ABUTMENT
                                                                                             SUPERSTRUCTURE
                                                                                                    DECK SUPPORT
                                                for superstructure
                 for deck supports


                                                  More Than 600
                  Less Than 600




               Fig. 7.2.1. Deck support conditions for other bridge forms than girder
                                                                                                                                                                                          SUPERSTRUC




                                                                                                                                   LOADING                                             DECK SUPPORT
                                                                                                                                  MATERIALS                        DECK
                                     ABUTMENT




                                                                                                                                                                    SUPERSTRUCTURE
                                                                                                                                                                           DECK SUPPORT
                                                                                              for superstructure
                                                                         for deck supports




                                                                                                                       Fig. 7.2.2. Example of Deck Supports
                                                                                                More Than 600
                                                                          Less Than 600




                                                                                              15

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:2
posted:10/9/2011
language:English
pages:2