It is known that the slabs on soil constitute one of the most difficult types of structures despite their apparent simplicity. The objective of this paper is to give a general survey of the design of ground supported ...It is known that the slabs on soil constitute one of the most difficult types of structures despite their apparent simplicity. The objective of this paper is to give a general survey of the design of ground supported slabs with the interposition of a suitable subbase. A solution is proposed with the following characteristics： （1） complete suppression of joints; （2） conventional reinforcement with meshes in the upper and lower fiber of the slab in order to confront and distribute cracking that is caused by hindrance of free contractions and expansions; （3） effective confrontation of problems of bulging. The proposal is in effect on one hand for industrial floorings and on the other hand for concrete pavings with large durability requirement.展开更多
This paper explores the shift in the attitudes of building developer/owners to the incorporation of sustainability measures into office building renovations in New Zealand over the last 7 years, through a series of in...This paper explores the shift in the attitudes of building developer/owners to the incorporation of sustainability measures into office building renovations in New Zealand over the last 7 years, through a series of interviews with a wide range of key industry players and the study of three seminal case study examples. The interviewees uniformly considered that there had been a rapid increase in interest in the green renovation of existing buildings during the period under consideration, due mainly to strong leadership by central government. Significant differences in attitudes to green renovation emerged between the various groups as to whether, and on what terms such developments were likely to occur. The move to green building solutions seems to have continued in New Zealand, despite the world financial crisis and central government＇s abrogation of its leadership role being replaced by rising tenant expectations and the need for building owners to let their premises in a more competitive leasing environment. The change in attitudes demonstrated is profound. In the earliest of the case study buildings, started on site in 2004, no consideration is given by the developer, owner or design team to sustainability issues and there is no obvious user demand. In the second case, which started on site only one year later, sustainable design is very prominent, but is largely tenant driven, albeit with the active and enthusiastic support of the developer and design team. The final case study building started on site in 2007 is entirely developer/building owner driven and stems from a perception that ＂green＂ buildings represent value for money, that there is a real and persistent user demand and that sustainable design makes strong commercial sense.展开更多
文摘It is known that the slabs on soil constitute one of the most difficult types of structures despite their apparent simplicity. The objective of this paper is to give a general survey of the design of ground supported slabs with the interposition of a suitable subbase. A solution is proposed with the following characteristics： （1） complete suppression of joints; （2） conventional reinforcement with meshes in the upper and lower fiber of the slab in order to confront and distribute cracking that is caused by hindrance of free contractions and expansions; （3） effective confrontation of problems of bulging. The proposal is in effect on one hand for industrial floorings and on the other hand for concrete pavings with large durability requirement.
文摘This paper explores the shift in the attitudes of building developer/owners to the incorporation of sustainability measures into office building renovations in New Zealand over the last 7 years, through a series of interviews with a wide range of key industry players and the study of three seminal case study examples. The interviewees uniformly considered that there had been a rapid increase in interest in the green renovation of existing buildings during the period under consideration, due mainly to strong leadership by central government. Significant differences in attitudes to green renovation emerged between the various groups as to whether, and on what terms such developments were likely to occur. The move to green building solutions seems to have continued in New Zealand, despite the world financial crisis and central government＇s abrogation of its leadership role being replaced by rising tenant expectations and the need for building owners to let their premises in a more competitive leasing environment. The change in attitudes demonstrated is profound. In the earliest of the case study buildings, started on site in 2004, no consideration is given by the developer, owner or design team to sustainability issues and there is no obvious user demand. In the second case, which started on site only one year later, sustainable design is very prominent, but is largely tenant driven, albeit with the active and enthusiastic support of the developer and design team. The final case study building started on site in 2007 is entirely developer/building owner driven and stems from a perception that ＂green＂ buildings represent value for money, that there is a real and persistent user demand and that sustainable design makes strong commercial sense.
