Abstract: A building system for skyscrapers includes a plurality of first building stories, a second building story located above the first building stories, and a plurality of third building stories located above the second building story. The second building story has a plurality of horizontal steel beams, a plurality of first vertical steel columns and a plurality of second vertical steel columns. The first vertical steel columns are located at a remote end of a lateral side of the building system, while the second vertical steel columns are located at a near end thereof. The fire resistance of the first vertical steel columns is superior to that of the second vertical steel column. Thus, while the building system is in a fire, the second vertical steel column would be affected more by the fire to reduce the vertical support thereupon than the first vertical steel column does.

Abstract: A building system is provided with a crash lateral side that is adapted to crash firstly under high-heat temperature. The building system includes a first building structure having a plurality of first horizontal beams and a plurality of first vertical support structures; a first fire-resistant floor erected uprightly on the first building structure; and a second building structure erected uprightly on the first fire-resistant floor, and having a plurality of second horizontal beams and a plurality of second vertical support structures. The second vertical support structures adjacent to the crash lateral side have a relatively low fire-resistant strength when compared to remaining portions of the second vertical support structures away from the crash lateral side such that the second vertical support structures adjacent to the crash lateral side are adapted to collapse toward the crash lateral side under the high-heat temperature.

Abstract: A fire-prevention structure for buildings includes at least a first fire-prevention district, a fire-prevention floor slab, and a second fire-prevention district. The first fire-prevention district having at least a steel-structured story further includes a plurality of first steel columns and a plurality of first steel beams. The first steel column is a hollow rectangular column with an upper end opening. The first steel beam is connected to a lateral side of the first steel column. The fire-prevention floor slab is constructed on top of the first steel beams and partly inside the end opening of the first steel column. The second fire-prevention district having at least a steel-structured story further includes a plurality of second steel columns and a plurality of second steel beams. The second steel column has a lower end portion further extruding an engagement plate and an engagement column.

Abstract: This invention presents a modified reinforced concrete structure, which has a steel structure composed of a beam steel box unit, column steel box unit, and beam-column joint steel box unit with lap jointing reinforced steels. The side plate and/or end plate of the steel box has through holes for concrete flowing therebetween. In this way, the workability of concrete grouting and tamping are improved, and the phenomena of hive, segregation, or floating can be avoided. It can also enhance the performance of beam-column joints (e.g. with better confinement ability, etc.). Applying the invention, the efficiency and accuracy of constructing beam-column joints can be increased, and in addition to better ensure the structural safety, it can also reduce construction manpower and schedule.

Abstract: This invention presents a modified reinforced concrete structure, which has a steel structure composed of a beam steel box unit, column steel box unit, and beam-column joint steel box unit with lap jointing reinforced steels. The side plate and/or end plate of the steel box has through holes for concrete flowing therebetween. In this way, the workability of concrete grouting and tamping are improved, and the phenomena of hive, segregation, or floating can be avoided. It can also enhance the performance of beam-column joints (e.g. with better confinement ability, etc.). Applying the invention, the efficiency and accuracy of constructing beam-column joints can be increased, and in addition to better ensure the structural safety, it can also reduce construction manpower and schedule.

Abstract: A fire-prevention structure for buildings includes at least a first fire-prevention district, a fire-prevention floor slab, and a second fire-prevention district. The first fire-prevention district having at least a steel-structured story further includes a plurality of first steel columns and a plurality of first steel beams. The first steel column is a hollow rectangular column with an upper end opening. The first steel beam is connected to a lateral side of the first steel column. The fire-prevention floor slab is constructed on top of the first steel beams and partly inside the end opening of the first steel column. The second fire-prevention district having at least a steel-structured story further includes a plurality of second steel columns and a plurality of second steel beams. The second steel column has a lower end portion further extruding an engagement plate and an engagement column.