New address to adxl345 in library

i have 3 adxl345 and i want to connect to arduino uno
my problem is in datasheet the adxl345 have to address i2c
how i can add a new address to library or connect the 3 adxl345 ?

The chips has a SDO pin, for two possible I2C addresses. For a third chip, you need this :

Very similar problem here