Hasil untuk "Details in building design and construction. Including walls, roofs"

Yiting Kang, Yu Cui, Dongjie Zhang et al.

Luigi Fiorino, Alessia Campiche, Roberto Tartaglia et al.

Tiziana Susca

J. Geletič, M. Lehnert, J. Resler et al.

Juan P. Villacreses, Jaime Granados, Bernardo Caicedo et al.

Barış Şimşek

Alessandro Grazzini, Federico Accornero, Giuseppe Lacidogna et al.

Lorenzo Olivieri, José A. Tenorio, David Revuelta et al.

Lorenzo Miccoli, Urs Müller, Stanislav Pospíšil

Saleh H. Alsayed, H.M. Elsanadedy, Zaki M. Al-Zaheri et al.

Eliza Manzer


 
 
 This paper discusses the sustainability benefits through the installation of living green roofs and walls in urban areas. A brief history of these living systems is provided to give context to the reader. Different kinds of green roofs and walls, how they are maintained, and their many benefits will be discussed. The many public and private benefits for cities that implement these systems will be examined. Then two case studies in different locations will be looked at that examine different benefits of green roofs in two different climates.
 
 

A.R. Bagheri, M. Alibabaie, M. Babaie

Knut Göppert

Amer Mohamed Ibrahim, Ahmed Abdullah Mansor, Jaleel Ibrahim Kaduri

Sanni Mukaila Yinka, Amana Ocholi, Stephen PinderEjeh

This research work reveals that the thermal properties of cement mortar are significantly affected with increase in crumb-rubber content, when used to partially replace sand in cement mortar mixes. The work is based on experimental study with replacement made at 5%, 10%, 15%, 20% and 25% crumb rubber by volume. Thermal properties were measured base on the transient line heat source (TLS) method using a KD 2 Pro-thermal analyzer. Thermal properties most especially the thermal conductivity of cement mortar (1.286W/mk) was greatly reduced to 0.351W/mk indicating 72.7% reduction with 25% crumb-rubber particles content, which makes it a better insulator. The specific heat capacity of cement mortar (2.791 MJ/m3.k) was reduced to 1.424MJ/m3k indicating 49% reduction with 25% rubber content, which may adversely reduce thermal mass effect. Other thermal properties such as thermal resistivity increased by 72.7%, thermal diffusivity decreased by 46.4% while thermal effusivity decreases by 66.4%.These results indicates that the potential use of such a composite material as an insulating mortar for building applications is viable.

Sam Kubba

DO Prevatt

Although the main structural systems of fully engineered buildings perform adequately during extreme wind events, costly losses happen to buildings once the components of the exterior walls and claddings fail. In response to these failures, new design methods have been developed that result in higher design wind loads applied to components, and prescribe additional tests on cladding to determine the structural resistance of exterior wall elements. This paper discusses some recent changes to the wind load design provisions of the American Society of Civil Engineers (ASCE) Standard, ASCE 7-98, that apply to exterior building walls. ASCE 7-98 includes new concepts for cladding design that consider impact resistance and topographic effects on overall wind loads. Examples compare the wind design loads obtained using ASCE 7-98 with loads obtained with 7–95 and 7–88 for regular-shaped buildings. The changes may eventually influence the exterior wall design throughout the U.S. because the recently published International Building Code (IBC-2000), formed under a partnership agreement of the three existing model building codes, has adopted ASCE 7-98. Improving the wind performance of exterior walls depends equally on improved wind design codes as well as on improved test procedures that determine the structural capacity of installed cladding systems. The current state-of-the-art in full-scale testing of building components is discussed, and a summary of current full-scale tests is presented. The author proposes that the current fragmented design process for different cladding materials and the reliance on materials-specific performance tests is too complex and needs to be streamlined in order to improve the overall performance of building envelope systems.