- Building Type : School, college, university
- Construction Year : 2015
- Delivery year : 2017
- Address 1 - street : 250101 山东省济南市, 中国
- Climate zone : [Cwa] Mild, dry winter, hot and wet summer.
- Net Floor Area : 9 696 m2
- Construction/refurbishment cost : 57 922 087 ¥
- Cost/m2 : 5973.81 ¥/ m 2 sup>
Primary energy need :
(Calculation method : Primary energy needs )
This project is located on the south side of library information building in the Shandong Jianzhu University campus, adjacent to the eastern slope of the Snow Mountain. The total construction area is 9696.30 ㎡. The project is a multi-storey public building, the structure of which is steel frame.
The green land which is open to the public is made up of trees, shrubs and grass. The greening rate of this project is 40.10%. U-value of the building envelope is 10% higher than the current national standard. GSHP system will meet the cooling and heating need of the project by taking full use of the geothermal energy which is one type of the renewables. In addition, the project uses energy-efficient lamps to ensure that the main function rooms’ LDP is lower.
This project is the first passive and ultra-low energy green building with fabricated steel structure in China, which combines the dual advantages of passive buildings and fabricated buildings. The advantages include improving the indoor comfort, enhancing staff work efficiency, cleaning indoor air, saving energy, speeding up construction and improving construction precision, reducing construction waste and so on.
3rd part certified
Contractor中建科技有限公司 楚洪亮，18601241955 China Construction Science ＆ Technology CO., LTD. is the EPC contractor of this project. The EPC area is 11936.17㎡including the main building and the hall classroom. But only the main building will apply for the Sustainable Construction Grand Prize.
Owner approach of sustainability
The target of this project is to build a passive and ultra-low energy green building. Passive design methods minimized the heating and cooling demand. And renewable energy system provided heating and cooling need. And high efficiency fresh air system with heat recovery was used. Compared to the previous construction project, this project has made full use of passive technologies including the reasonable building size, reasonable building orientation and window-wall ratio, reasonable envelope design by using performance optimization design and node design. This project also strictly followed the key points of thermal bridge break design and air tightness. The energy saving rate was 81.05%.
Due to the project was assembled by steel structure system, many difficulties was met in the air tightness and thermal bridge break design. A lot of domestic initiative measures were taken during the design and implementation of this project including assembled steel structure building air tightness measures, embedded window installation form and scaffold pull joint hole airtight insulation treatment measures.
This project is the first passive ultra-low energy building with fabricated steel structure in China, the successful design and construction of which broadens the field and category of the passive ultra-low energy building. Based on actual conditions, bold research and innovation were carried. It is a major breakthrough about passive ultra-low energy buildings. The successful achievement of this project will provide many valuable experiences for other passive ultra-low energy buildings with fabricated structure.
The project is located on the university campus and all the landscape are open. According to the landscape design drawings of the project, the overall greening land area is 7826.35㎡and the greening land area of the declaration scope is 2581.53 ㎡. Shandong Jianzhu University is one of the green campus classics and had been selected into the United Nations Environment Programme green campus classic cases in June 2014.
If you had to do it again?
This project is overall fabricated with steel frame and precast autoclaved aerated concrete wall.
The basic passive house principles are followed in this project which include using high insulation envelope system, air tightness and thermal bridge break treatment methods and high efficiency fresh air system. Compared with other cast-in-place passive buildings, there are many challenges to solve the key issues of passive buildings through fabricated methods. The challenges include the air leakage treatment between precast outer wall board, insulation and air tight treatment of scaffold pull joint hole, the connection of the passive external window and the main structure, insulation and air tight treatment of steel column through wall and so on. There are not similar reference cases. Therefore, the construction of the project is very difficult.
To solve these technical challenges, with the leadership of the company's leading experts, the design and construction teams gave full play to their abilities to innovate and raised various professional programs including airtight strengthening measures of precast wall , setting 5cm thick insulation layer between the overhanging autoclaved aerated concrete and the floor, filling scaffold pull joint hole by using post-grouting after filling insulation material into the hole, embedded installing the exterior windows, thermal bridge break and airtight treatment of the steel beam column through the wall. To ensure the reliability of the technologies above, field tests were carried before the implementation of each special program.
- 118,67 kWhpe/m2.年
- 219,14 kWhpe/m2.年
- 35,96 kWhfe/m2.年
- 0,16 W.m-2.K-1
- Geothermal heat pump
- No domestic hot water system
- Geothermal heat pump
- Fan coil
- Double flow heat exchanger
- Heat pump (geothermal)
- 16,93 ％
Qinheng Shoulder insulation panel
Qinheng Shoulder insulation panel is a kind of flame retardant polystyrene foam which is made of expandable polystyrene beads along with graphite through thermoforming in the mold after being expanded by steam. This product has the characteristics of good thermal insulation performance, cost-effective, extensive use and so on.
Raw material suppliers are well-known companies in the world, which can guarantee the quality of products. The heat conductivity coefficient of the product is less than 0.033 W/m•K and the combustion performance grade is B1 .
well accepted by the user with high performance
This product with a hidden motor can be opened and closed by electric controlling. The whole window is simple and neat. It can be opened through the upward push. It has a large open angle, good ventilation effect, high standard of thermal insulation and sound insulation performance. The frame timber is made of fine Nordic pine and completed through 301 processes and check procedures such as lamination, tenon, drilling, shaping, grinding, antiseptic treatment, termite prevention treatment and so on. The cover plate and drain plate are made of precision manufacturing process, and are subjected to 1080 hours salt mist test and ultraviolet irradiation test. The sealing system consists of seven sealing strips which will be strengthen through built-in nylon thread. U-value of the product is less than 1 W/㎡•K.
Can be produced commercially in large scale.
With high energy-efficient waterproof performance
Because the product modulus is fixed, high construction accuracy is required, therefore the construction is slow.
Viewmax Passive house energy-saving window
The research purpose of P series passive energy saving window is to reduce energy consumption of heating and cooling, so as to save energy and protect environment. P series of passive energy-saving window adopted a number of advanced energy-saving technologies which include PVC co-extrusion technology, special PUR foaming technology, Low-E glass, inert gas and warm middle edge and so on. P series passive energy saving windows possess characteristics of fireproof, heat insulation, thermal insulation, corrosion resistance, climate change resistance, excellent insulation and smooth appearance, which can make room form a healthy indoor micro climate environment, and achieve the best energy saving effect. U-value of the product is less than 1 W/㎡•K.
Energy saving window for passive house with high performance. Many colors for building envelop fitting
Bosig waterproof vapor retard/permeate material
This product is imported from Germany and conforms to the European Union and German industrial standards. The product has good ductility, reliable adhesive strength, and a wide range of options including vapor retard, vapor permeable type, plastering or long-term UV resistance. The products are ideal materials for passive house or other energy-saving building which will mainly be used in windows, doors and wall holes and which can effectively prevent vapor condensed.
Because the dimension is limited, it applies to window and door openning.
Tsinghua Tongfang fresh air units with heat recovery and the double temperature cool sources with an inner condenser
HVAC、电 / 通风、制冷
The unit conducts advanced treatment of fresh air which is based on two types (high and low temperature) of cold source, and mainly bear indoor wet load. Two stage full heat recovery device has been set. In the summer, the new exhaust air conducts full heat exchange through a plate full heat exchanger and achieve the primary recovery of cooling capacity. A compressor condenser which cool the amount of discharged air the second time is arranged in the exhaust side. The total heat recovery efficiency can be up to 80%. This product adopts the direct evaporation condensing double temperature fresh air unit which is unique to Tsinghua Tongfang. That is, the precooling direct evaporation condensation technology can effectively prevent the fouling of condenser.
This product has been used in many projects, the quality is mature which ensure an using effect
The project is located on the new campus of Shandong Jianzhu University. The campus is equipped with commercial services, sports and other places of service. The campus has public transport vehicles No. 317 and K161, which make people easy to travel. The new campus of Shandong Jianzhu University is located in No. 1000, Fengming Road, Lixia District and had been selected into the United Nations Environment Programme green campus classic case in June 2014.
Land plot area
6 439,20 m2
There are 23 outdoor parking spaces in the project area and 23 parking spaces. The project is located on the campus, the area is open nature, the campus part of the resources are shared state, so you can use the number of parking spaces not only 23.
Other case studies
- 李 丹蕊