Architecture

The complex consists of two buildings joined at the base by a row of semi-detached houses. The south tower and north tower rise 195 m and 165 m above the corner of Fremont and Harrison streets, respectively. The North Tower has 50 stories, while the South Tower has 60.[3]​ Due to Rincon Hill's sloping terrain, the South Tower's lobby floor or 1st Street entrance is on the sixth floor, and the first floor is five levels underground from the 1st Street entrance.[12]​ It is also one of the tallest residential towers west of the Mississippi River.[8]​[13]​[14]​ Its location near the Rincon Hill's apex, at a height of more than 30.5 m,[2]​ gives it an apparent height of more than 213.4 m, making it one of the largest additions to the San Francisco skyline in more than 30 years.[15][16]​.

Both the north tower and the south tower of the Rincon Hill complex bear a resemblance to The Heritage at Millennium Park in Chicago, a building of a similar height to the south tower also designed by Solomon, Cordwell, Buenz and Associates. similar design, except that it is shorter and the curved aluminum and glass side faces northwest.[16] Both Rincon Hill project skyscrapers contain an oval-shaped crown that houses mechanical equipment.[16][18][19]​.

The crown of the South Tower contains a band of 25 LED spotlights that remain on all night. Each LED light consumes little power and has a lifespan of 40,000 hours. These lights are used to signal the weather, much like the lights on the Berkeley Building in Boston. The crown lights up red if the weather forecast is warmer. A blue crown means cold weather is expected soon. Green means there is at least a 50 percent chance of rain. Amber indicates that the weather will remain unchanged. This is the first weather beacon in the San Francisco Bay Area. The corona began lighting on December 8, 2008.[20]​.

Seismic Engineering

To support the 60-story condo tower, One Rincon Hill South Tower has a massive 4-meter (13-foot) thick raft foundation embedded deep into serpentine rock. Although some engineers view serpentine rock with suspicion, there are massive structures, such as the Golden Gate Bridge, that have foundations on rock that is largely serpentine.[21]​ From the foundation rise the concrete "Core (architecture)") core and tall, large steel-reinforced concrete columns called outriggers. The core is attached to the outrigger columns by buckling-restrained steel diagonal braces that are designed to dissipate energy during an earthquake through controlled hysteretic behavior. This type of advanced seismic system works in a similar way to shock absorbers. The stays are also encased in concrete and steel to further mitigate the risk of buckling and loss of strength. Also noteworthy is the controlled sway system that features vertical post-tensioning that runs the height of the building through ducts within the core of the reinforced concrete shear wall. Many of these technologies used at One Rincon Hill South Tower have never before been applied in the United States.[22]​.

water tanks

At the top of the building is a large tuned splash absorber[23]​ that holds up to 189,250 liters of water and weighs 185,440 kg.[18]​[22]​ A similar 189,250 liter tank is located in the basement for firefighting purposes. There are two liquid dampening screens in each tank to control water flow and counteract the sway of powerful Pacific winds, which can reach hurricane force.[21]​.

Elevators

The South Tower has one freight elevator and three passenger elevators. The elevators are the second fastest in the city of San Francisco, surpassed only by those at 555 California Street and tied with those at 555 Mission Street"). of passenger traffic and dispatch the three elevators to handle passenger needs accordingly. The bottom of each elevator shaft has a cylinder filled with hydraulic oil to stop the fall of an elevator without injuring the passengers inside.[25]​.

Residences

The entire project will provide 695 condominiums in the high-rises and 14 townhomes at the foot of the towers for a total of 709 units.[26]​ 376 of those condo units are located in the South Tower and the North Tower contains the other 319 units.[11]​[27]​ Because of their height, both towers will offer spectacular views of the surrounding landscapes.[16]​ There are 26 floor plans. "Plan (architecture)") for the 695 condominiums that are financially out of reach for many citizens residing in San Francisco. Units range widely in price from $500,000 to $2.5 million[14][28]​ depending on view and unit size ranging from 56,186 m².[8]​ The project opened a sales office on June 16, 2006 and even before the opening, condo buyers deposited 130 of the 376 South Tower condo units in a wave of sales.[29]​ The sales center is rumored to have cost $2 million. The condo units at One Rincon Hill South Tower sold well for an unfinished building at the time. The first residents began moving into the South Tower in February 2008.[30]​.

Architecture

The complex consists of two buildings joined at the base by a row of semi-detached houses. The south tower and north tower rise 195 m and 165 m above the corner of Fremont and Harrison streets, respectively. The North Tower has 50 stories, while the South Tower has 60.[3]​ Due to Rincon Hill's sloping terrain, the South Tower's lobby floor or 1st Street entrance is on the sixth floor, and the first floor is five levels underground from the 1st Street entrance.[12]​ It is also one of the tallest residential towers west of the Mississippi River.[8]​[13]​[14]​ Its location near the Rincon Hill's apex, at a height of more than 30.5 m,[2]​ gives it an apparent height of more than 213.4 m, making it one of the largest additions to the San Francisco skyline in more than 30 years.[15][16]​.

Both the north tower and the south tower of the Rincon Hill complex bear a resemblance to The Heritage at Millennium Park in Chicago, a building of a similar height to the south tower also designed by Solomon, Cordwell, Buenz and Associates. similar design, except that it is shorter and the curved aluminum and glass side faces northwest.[16] Both Rincon Hill project skyscrapers contain an oval-shaped crown that houses mechanical equipment.[16][18][19]​.

The crown of the South Tower contains a band of 25 LED spotlights that remain on all night. Each LED light consumes little power and has a lifespan of 40,000 hours. These lights are used to signal the weather, much like the lights on the Berkeley Building in Boston. The crown lights up red if the weather forecast is warmer. A blue crown means cold weather is expected soon. Green means there is at least a 50 percent chance of rain. Amber indicates that the weather will remain unchanged. This is the first weather beacon in the San Francisco Bay Area. The corona began lighting on December 8, 2008.[20]​.

Seismic Engineering

To support the 60-story condo tower, One Rincon Hill South Tower has a massive 4-meter (13-foot) thick raft foundation embedded deep into serpentine rock. Although some engineers view serpentine rock with suspicion, there are massive structures, such as the Golden Gate Bridge, that have foundations on rock that is largely serpentine.[21]​ From the foundation rise the concrete "Core (architecture)") core and tall, large steel-reinforced concrete columns called outriggers. The core is attached to the outrigger columns by buckling-restrained steel diagonal braces that are designed to dissipate energy during an earthquake through controlled hysteretic behavior. This type of advanced seismic system works in a similar way to shock absorbers. The stays are also encased in concrete and steel to further mitigate the risk of buckling and loss of strength. Also noteworthy is the controlled sway system that features vertical post-tensioning that runs the height of the building through ducts within the core of the reinforced concrete shear wall. Many of these technologies used at One Rincon Hill South Tower have never before been applied in the United States.[22]​.

water tanks

At the top of the building is a large tuned splash absorber[23]​ that holds up to 189,250 liters of water and weighs 185,440 kg.[18]​[22]​ A similar 189,250 liter tank is located in the basement for firefighting purposes. There are two liquid dampening screens in each tank to control water flow and counteract the sway of powerful Pacific winds, which can reach hurricane force.[21]​.

Elevators

The South Tower has one freight elevator and three passenger elevators. The elevators are the second fastest in the city of San Francisco, surpassed only by those at 555 California Street and tied with those at 555 Mission Street"). of passenger traffic and dispatch the three elevators to handle passenger needs accordingly. The bottom of each elevator shaft has a cylinder filled with hydraulic oil to stop the fall of an elevator without injuring the passengers inside.[25]​.

Residences

The entire project will provide 695 condominiums in the high-rises and 14 townhomes at the foot of the towers for a total of 709 units.[26]​ 376 of those condo units are located in the South Tower and the North Tower contains the other 319 units.[11]​[27]​ Because of their height, both towers will offer spectacular views of the surrounding landscapes.[16]​ There are 26 floor plans. "Plan (architecture)") for the 695 condominiums that are financially out of reach for many citizens residing in San Francisco. Units range widely in price from $500,000 to $2.5 million[14][28]​ depending on view and unit size ranging from 56,186 m².[8]​ The project opened a sales office on June 16, 2006 and even before the opening, condo buyers deposited 130 of the 376 South Tower condo units in a wave of sales.[29]​ The sales center is rumored to have cost $2 million. The condo units at One Rincon Hill South Tower sold well for an unfinished building at the time. The first residents began moving into the South Tower in February 2008.[30]​.